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4411 lines
187 KiB
4411 lines
187 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class learnpathItem
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* lp_item defines items belonging to a learnpath. Each item has a name,
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* a score, a use time and additional information that enables tracking a user's
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* progress in a learning path
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* @package chamilo.learnpath
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* @author Yannick Warnier <ywarnier@beeznest.org>
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*/
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class learnpathItem
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{
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const debug = 0; // Logging parameter.
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public $attempt_id; // Also called "objectives" SCORM-wise.
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public $audio; // The path to an audio file (stored in document/audio/).
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public $children = array(); // Contains the ids of children items.
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public $condition; // If this item has a special condition embedded.
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public $current_score;
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public $current_start_time;
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public $current_stop_time;
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public $current_data = '';
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public $db_id;
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public $db_item_view_id = '';
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public $description = '';
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public $file;
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/**
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* At the moment, interactions are just an array of arrays with a structure
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* of 8 text fields: id(0), type(1), time(2), weighting(3),
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* correct_responses(4), student_response(5), result(6), latency(7)
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*/
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public $interactions = array();
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public $interactions_count = 0;
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public $objectives = array();
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public $objectives_count = 0;
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public $launch_data = '';
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public $lesson_location = '';
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public $level = 0;
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public $core_exit = '';
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//var $location; // Only set this for SCORM?
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public $lp_id;
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public $max_score;
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public $mastery_score;
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public $min_score;
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public $max_time_allowed = '';
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public $name;
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public $next;
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public $parent;
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public $path; // In some cases the exo_id = exercise_id in courseDb exercices table.
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public $possible_status = array(
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'not attempted',
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'incomplete',
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'completed',
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'passed',
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'failed',
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'browsed'
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);
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public $prereq_string = '';
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public $prereq_alert = '';
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public $prereqs = array();
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public $previous;
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public $prevent_reinit = 1; // 0 = multiple attempts 1 = one attempt
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public $seriousgame_mode;
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public $ref;
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public $save_on_close = true;
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public $search_did = null;
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public $status;
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public $title;
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/**
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* Type attribute can contain one of
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* chapter|link|student_publication|module|quiz|document|forum|thread
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*/
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public $type;
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public $view_id;
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//var used if absolute session time mode is used
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private $last_scorm_session_time = 0;
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private $prerequisiteMaxScore;
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private $prerequisiteMinScore;
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/**
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* Prepares the learning path item for later launch.
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* Don't forget to use set_lp_view() if applicable after creating the item.
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* Setting an lp_view will finalise the item_view data collection
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* @param integer $id Learning path item ID
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* @param null|integer $user_id User ID
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* @param null|integer $course_id Course int id
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* @param null|array $item_content An array with the contents of the item
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* @return bool True on success, false on failure
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*/
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public function __construct(
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$id,
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$user_id = null,
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$course_id = null,
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$item_content = null
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) {
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$items_table = Database::get_course_table(TABLE_LP_ITEM);
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// Get items table.
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if (!isset($user_id)) {
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$user_id = api_get_user_id();
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}
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if (self::debug > 0) {
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error_log(
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"learnpathItem constructor: id: $id user_id: ".
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"$user_id course_id: $course_id item_content: $item_content",
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0
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);
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}
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$id = intval($id);
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if (empty($item_content)) {
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if (empty($course_id)) {
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$course_id = api_get_course_int_id();
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} else {
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$course_id = intval($course_id);
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}
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$sql = "SELECT * FROM $items_table
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WHERE c_id = $course_id AND id = $id";
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$res = Database::query($sql);
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if (Database::num_rows($res) < 1) {
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$this->error =
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'Could not find given learnpath item in learnpath_item table';
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return false;
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}
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$row = Database::fetch_array($res);
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} else {
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$row = $item_content;
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}
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$this->lp_id = $row['lp_id'];
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$this->max_score = $row['max_score'];
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$this->min_score = $row['min_score'];
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$this->name = $row['title'];
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$this->type = $row['item_type'];
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$this->ref = $row['ref'];
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$this->title = $row['title'];
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$this->description = $row['description'];
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$this->path = $row['path'];
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$this->mastery_score = $row['mastery_score'];
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$this->parent = $row['parent_item_id'];
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$this->next = $row['next_item_id'];
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$this->previous = $row['previous_item_id'];
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$this->display_order = $row['display_order'];
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$this->prereq_string = $row['prerequisite'];
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$this->max_time_allowed = $row['max_time_allowed'];
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$this->setPrerequisiteMaxScore($row['prerequisite_max_score']);
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$this->setPrerequisiteMinScore($row['prerequisite_min_score']);
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if (isset($row['launch_data'])) {
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$this->launch_data = $row['launch_data'];
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}
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$this->save_on_close = true;
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$this->db_id = $id;
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// Load children list
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$sql = "SELECT id FROM $items_table
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WHERE
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c_id = $course_id AND
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lp_id = ".$this->lp_id." AND
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parent_item_id = $id";
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$res = Database::query($sql);
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if (Database::num_rows($res) < 1) {
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// Nothing to do (no children)
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} else {
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while ($row = Database::fetch_assoc($res)) {
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$this->children[] = $row['id'];
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}
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}
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//$this->seriousgame_mode = $this->get_seriousgame_mode();
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$this->seriousgame_mode = 0;
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// Get search_did.
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if (api_get_setting('search_enabled') == 'true') {
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$tbl_se_ref = Database::get_main_table(
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TABLE_MAIN_SEARCH_ENGINE_REF
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);
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$sql = 'SELECT *
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FROM %s
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WHERE course_code=\'%s\'
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AND tool_id=\'%s\'
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AND ref_id_high_level=%s
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AND ref_id_second_level=%d
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LIMIT 1';
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// TODO: Verify if it's possible to assume the actual course instead
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// of getting it from db.
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$sql = sprintf(
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$sql,
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$tbl_se_ref,
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api_get_course_id(),
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TOOL_LEARNPATH,
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$this->lp_id,
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$id
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);
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if (self::debug > 0) {
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error_log($sql);
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};
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$res = Database::query($sql);
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if (Database::num_rows($res) > 0) {
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$se_ref = Database::fetch_array($res);
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$this->search_did = (int)$se_ref['search_did'];
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}
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}
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$this->audio = $row['audio'];
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if (self::debug > 0) {
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error_log(
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'New LP - End of learnpathItem constructor for item ' . $id,
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0
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);
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}
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return true;
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}
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/**
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* Adds a child to the current item
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* @param int $item The child item ID
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*/
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public function add_child($item)
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{
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if (self::debug > 0) {
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error_log('learnpathItem::add_child()', 0);
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}
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if (!empty($item)) {
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// Do not check in DB as we expect the call to come from the
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// learnpath class which should be aware of any fake.
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$this->children[] = $item;
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}
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}
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/**
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* Adds an interaction to the current item
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* @param int $index Index (order ID) of the interaction inside this item
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* @param array $params Array of parameters:
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* id(0), type(1), time(2), weighting(3), correct_responses(4),
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* student_response(5), result(6), latency(7)
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* @return void
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*/
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public function add_interaction($index, $params)
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{
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$this->interactions[$index] = $params;
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// Take the current maximum index to generate the interactions_count.
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if (($index + 1) > $this->interactions_count) {
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$this->interactions_count = $index + 1;
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}
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/*
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if (is_array($this->interactions[$index]) && count($this->interactions[$index]) > 0) {
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$this->interactions[$index] = $params;
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return false;
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} else {
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if (count($params)==8) {
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// We rely on the calling script to provide parameters in the right order.
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$this->interactions[$index] = $params;
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return true;
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} else {
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return false;
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}
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}
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*/
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}
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/**
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* Adds an objective to the current item
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* @param array Array of parameters:
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* id(0), status(1), score_raw(2), score_max(3), score_min(4)
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* @return void
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*/
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public function add_objective($index, $params)
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{
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if (empty($params[0])) {
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return null;
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}
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$this->objectives[$index] = $params;
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// Take the current maximum index to generate the objectives_count.
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if ((count($this->objectives) + 1) > $this->objectives_count) {
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$this->objectives_count = (count($this->objectives) + 1);
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}
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}
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/**
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* Closes/stops the item viewing. Finalises runtime values.
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* If required, save to DB.
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* @return boolean True on success, false otherwise
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*/
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public function close()
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{
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if (self::debug > 0) {
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error_log('learnpathItem::close()', 0);
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}
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$this->current_stop_time = time();
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$type = $this->get_type();
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if ($type != 'sco') {
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if ($type == TOOL_QUIZ || $type == TOOL_HOTPOTATOES) {
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$this->get_status(
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true,
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true
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); // Update status (second option forces the update).
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} else {
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$this->status = $this->possible_status[2];
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}
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}
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if ($this->save_on_close) {
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$this->save();
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}
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return true;
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}
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/**
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* Deletes all traces of this item in the database
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* @return boolean true. Doesn't check for errors yet.
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*/
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public function delete()
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{
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if (self::debug > 0) {
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error_log('learnpath_item::delete() for item ' . $this->db_id, 0);
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}
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$lp_item_view = Database::get_course_table(TABLE_LP_ITEM_VIEW);
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$lp_item = Database::get_course_table(TABLE_LP_ITEM);
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$course_id = api_get_course_int_id();
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$sql = "DELETE FROM $lp_item_view
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WHERE c_id = $course_id AND lp_item_id = " . $this->db_id;
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if (self::debug > 0) {
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error_log('Deleting from lp_item_view: ' . $sql, 0);
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}
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Database::query($sql);
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$sql = "SELECT * FROM $lp_item
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WHERE c_id = $course_id AND id = " . $this->db_id;
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$res_sel = Database::query($sql);
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if (Database::num_rows($res_sel) < 1) {
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return false;
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}
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$sql = "DELETE FROM $lp_item
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WHERE c_id = $course_id AND id = " . $this->db_id;
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Database::query($sql);
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if (self::debug > 0) {
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error_log('Deleting from lp_item: ' . $sql);
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}
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if (api_get_setting('search_enabled') == 'true') {
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if (!is_null($this->search_did)) {
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require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
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$di = new ChamiloIndexer();
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$di->remove_document($this->search_did);
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}
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}
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return true;
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}
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/**
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* Drops a child from the children array
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* @param string $item index of child item to drop
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* @return void
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*/
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public function drop_child($item)
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{
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if (self::debug > 0) {
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error_log('learnpathItem::drop_child()', 0);
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}
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if (!empty($item)) {
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foreach ($this->children as $index => $child) {
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if ($child == $item) {
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$this->children[$index] = null;
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}
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}
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}
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}
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/**
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* Gets the current attempt_id for this user on this item
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* @return int attempt_id for this item view by this user or 1 if none defined
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*/
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public function get_attempt_id()
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{
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if (self::debug > 0) {
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error_log(
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'learnpathItem::get_attempt_id() on item ' . $this->db_id,
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0
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);
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}
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$res = 1;
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if (!empty($this->attempt_id)) {
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$res = intval($this->attempt_id);
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}
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if (self::debug > 0) {
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error_log(
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'New LP - End of learnpathItem::get_attempt_id() on item ' .
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$this->db_id . ' - Returning ' . $res,
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0
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);
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}
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return $res;
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}
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/**
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* Gets a list of the item's children
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* @return array Array of children items IDs
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*/
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public function get_children()
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{
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if (self::debug > 0) {
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error_log('learnpathItem::get_children()', 0);
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}
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$list = array();
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foreach ($this->children as $child) {
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if (!empty($child)) {
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$list[] = $child;
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}
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}
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return $list;
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}
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/**
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* Gets the core_exit value from the database
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*/
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public function get_core_exit()
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{
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return $this->core_exit;
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}
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/**
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* Gets the credit information (rather scorm-stuff) based on current status
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* and reinit autorization. Credit tells the sco(content) if Chamilo will
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* record the data it is sent (credit) or not (no-credit)
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* @return string 'credit' or 'no-credit'. Defaults to 'credit'
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* Because if we don't know enough about this item, it's probably because
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* it was never used before.
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*/
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public function get_credit()
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{
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if (self::debug > 1) {
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error_log('learnpathItem::get_credit()', 0);
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}
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$credit = 'credit';
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// Now check the value of prevent_reinit (if it's 0, return credit as
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// the default was).
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// If prevent_reinit == 1 (or more).
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if ($this->get_prevent_reinit() != 0) {
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// If status is not attempted or incomplete, credit anyway.
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// Otherwise:
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// Check the status in the database rather than in the object, as
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// checking in the object would always return "no-credit" when we
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// want to set it to completed.
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$status = $this->get_status(true);
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if (self::debug > 2) {
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error_log(
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'learnpathItem::get_credit() - get_prevent_reinit!=0 and '.
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'status is ' . $status,
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0
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);
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}
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//0=not attempted - 1 = incomplete
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if ($status != $this->possible_status[0]&&
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$status != $this->possible_status[1]
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) {
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$credit = 'no-credit';
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}
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}
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if (self::debug > 1) {
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error_log("learnpathItem::get_credit() returns: $credit");
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}
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return $credit;
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}
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|
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/**
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|
* Gets the current start time property
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|
* @return integer Current start time, or current time if none
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*/
|
|
public function get_current_start_time()
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{
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if (self::debug > 0) {
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error_log('learnpathItem::get_current_start_time()', 0);
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}
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if (empty($this->current_start_time)) {
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return time();
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|
} else {
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return $this->current_start_time;
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}
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}
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|
|
/**
|
|
* Gets the item's description
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|
* @return string Description
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*/
|
|
public function get_description()
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{
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if (self::debug > 0) {
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error_log('learnpathItem::get_description()', 0);
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}
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if (empty($this->description)) {
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return '';
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}
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return $this->description;
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}
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|
|
/**
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|
* Gets the file path from the course's root directory, no matter what
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* tool it is from.
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|
* @param string $path_to_scorm_dir
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|
* @return string The file path, or an empty string if there is no file
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|
* attached, or '-1' if the file must be replaced by an error page
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|
*/
|
|
public function get_file_path($path_to_scorm_dir = '')
|
|
{
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|
$course_id = api_get_course_int_id();
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|
if (self::debug > 0) {
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|
error_log('learnpathItem::get_file_path()', 0);
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}
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|
$path = $this->get_path();
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|
$type = $this->get_type();
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|
if (empty($path)) {
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|
if ($type == 'dokeos_chapter' || $type == 'chapter' || $type == 'dir') {
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return '';
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} else {
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return '-1';
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}
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|
} elseif ($path == strval(intval($path))) {
|
|
// The path is numeric, so it is a reference to a Chamilo object.
|
|
switch ($type) {
|
|
case 'dokeos_chapter':
|
|
case 'dir':
|
|
case 'chapter':
|
|
return '';
|
|
case TOOL_DOCUMENT:
|
|
$table_doc = Database::get_course_table(TABLE_DOCUMENT);
|
|
$sql = 'SELECT path
|
|
FROM ' . $table_doc . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
id = ' . $path;
|
|
$res = Database::query($sql);
|
|
$row = Database::fetch_array($res);
|
|
$real_path = 'document' . $row['path'];
|
|
return $real_path;
|
|
case TOOL_STUDENTPUBLICATION:
|
|
case TOOL_QUIZ:
|
|
case TOOL_FORUM:
|
|
case TOOL_THREAD:
|
|
case TOOL_LINK:
|
|
default:
|
|
return '-1';
|
|
}
|
|
} else {
|
|
if (!empty($path_to_scorm_dir)) {
|
|
$path = $path_to_scorm_dir . $path;
|
|
}
|
|
return $path;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the DB ID
|
|
* @return integer Database ID for the current item
|
|
*/
|
|
public function get_id()
|
|
{
|
|
if (self::debug > 1) {
|
|
error_log('learnpathItem::get_id()', 0);
|
|
}
|
|
if (!empty($this->db_id)) {
|
|
return $this->db_id;
|
|
}
|
|
// TODO: Check this return value is valid for children classes (SCORM?).
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Loads the interactions into the item object, from the database.
|
|
* If object interactions exist, they will be overwritten by this function,
|
|
* using the database elements only.
|
|
* @return void Directly sets the interactions attribute in memory
|
|
*/
|
|
public function load_interactions()
|
|
{
|
|
$this->interactions = array();
|
|
$course_id = api_get_course_int_id();
|
|
$tbl = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT id FROM $tbl
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . $this->attempt_id;
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) > 0) {
|
|
$row = Database::fetch_array($res);
|
|
$lp_iv_id = $row[0];
|
|
$iva_table = Database::get_course_table(TABLE_LP_IV_INTERACTION);
|
|
$sql = "SELECT * FROM $iva_table
|
|
WHERE c_id = $course_id AND lp_iv_id = $lp_iv_id ";
|
|
$res_sql = Database::query($sql);
|
|
while ($row = Database::fetch_array($res_sql)) {
|
|
$this->interactions[$row['interaction_id']] = array(
|
|
$row['interaction_id'],
|
|
$row['interaction_type'],
|
|
$row['weighting'],
|
|
$row['completion_time'],
|
|
$row['correct_responses'],
|
|
$row['student_responses'],
|
|
$row['result'],
|
|
$row['latency']
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the current count of interactions recorded in the database
|
|
* @param bool $checkdb Whether to count from database or not (defaults to no)
|
|
* @return int The current number of interactions recorder
|
|
*/
|
|
public function get_interactions_count($checkdb = false)
|
|
{
|
|
if (self::debug > 1) {
|
|
error_log('learnpathItem::get_interactions_count()', 0);
|
|
}
|
|
$return = 0;
|
|
$course_id = api_get_course_int_id();
|
|
|
|
if ($checkdb) {
|
|
$tbl = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT id FROM $tbl
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id ." AND
|
|
view_count = " . $this->get_attempt_id();
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) > 0) {
|
|
$row = Database::fetch_array($res);
|
|
$lp_iv_id = $row[0];
|
|
$iva_table = Database::get_course_table(
|
|
TABLE_LP_IV_INTERACTION
|
|
);
|
|
$sql = "SELECT count(id) as mycount
|
|
FROM $iva_table
|
|
WHERE c_id = $course_id AND lp_iv_id = $lp_iv_id ";
|
|
$res_sql = Database::query($sql);
|
|
if (Database::num_rows($res_sql) > 0) {
|
|
$row = Database::fetch_array($res_sql);
|
|
$return = $row['mycount'];
|
|
}
|
|
}
|
|
} else {
|
|
if (!empty($this->interactions_count)) {
|
|
$return = $this->interactions_count;
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Gets the JavaScript array content to fill the interactions array.
|
|
* @param bool $checkdb Whether to check directly into the database (default no)
|
|
* @return string An empty string if no interaction, a JS array definition otherwise
|
|
*/
|
|
public function get_interactions_js_array($checkdb = false)
|
|
{
|
|
$return = '';
|
|
if ($checkdb) {
|
|
$this->load_interactions(true);
|
|
}
|
|
foreach ($this->interactions as $id => $in) {
|
|
$return .= "[
|
|
'$id',
|
|
'" . $in[1] . "',
|
|
'" . $in[2] . "',
|
|
'" . $in[3] . "',
|
|
'" . $in[4] . "',
|
|
'" . $in[5] . "',
|
|
'" . $in[6] . "',
|
|
'" . $in[7] . "'],";
|
|
}
|
|
if (!empty($return)) {
|
|
$return = substr($return, 0, -1);
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Gets the current count of objectives recorded in the database
|
|
* @return int The current number of objectives recorder
|
|
*/
|
|
public function get_objectives_count()
|
|
{
|
|
if (self::debug > 1) {
|
|
error_log('learnpathItem::get_objectives_count()', 0);
|
|
}
|
|
$res = 0;
|
|
if (!empty($this->objectives_count)) {
|
|
$res = $this->objectives_count;
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
/**
|
|
* Gets the launch_data field found in imsmanifests (this is SCORM- or
|
|
* AICC-related, really)
|
|
* @return string Launch data as found in imsmanifest and stored in
|
|
* Chamilo (read only). Defaults to ''.
|
|
*/
|
|
public function get_launch_data()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_launch_data()', 0);
|
|
}
|
|
if (!empty($this->launch_data)) {
|
|
return str_replace(
|
|
array("\r", "\n", "'"),
|
|
array('\r', '\n', "\\'"),
|
|
$this->launch_data
|
|
);
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Gets the lesson location
|
|
* @return string lesson location as recorded by the SCORM and AICC
|
|
* elements. Defaults to ''
|
|
*/
|
|
public function get_lesson_location()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_lesson_location()', 0);
|
|
}
|
|
if (!empty($this->lesson_location)) {
|
|
return str_replace(
|
|
array("\r", "\n", "'"),
|
|
array('\r', '\n', "\\'"),
|
|
$this->lesson_location
|
|
);
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the lesson_mode (scorm feature, but might be used by aicc as well
|
|
* as chamilo paths)
|
|
*
|
|
* The "browse" mode is not supported yet (because there is no such way of
|
|
* seeing a sco in Chamilo)
|
|
* @return string 'browse','normal' or 'review'. Defaults to 'normal'
|
|
*/
|
|
public function get_lesson_mode()
|
|
{
|
|
$mode = 'normal';
|
|
if ($this->get_prevent_reinit() != 0) { // If prevent_reinit == 0
|
|
$my_status = $this->get_status();
|
|
if ($my_status != $this->possible_status[0]
|
|
&& $my_status != $this->possible_status[1]) {
|
|
$mode = 'review';
|
|
}
|
|
}
|
|
return $mode;
|
|
}
|
|
|
|
/**
|
|
* Gets the depth level
|
|
* @return int Level. Defaults to 0
|
|
*/
|
|
public function get_level()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_level()', 0);
|
|
}
|
|
if (empty($this->level)) {
|
|
return 0;
|
|
}
|
|
return $this->level;
|
|
}
|
|
|
|
/**
|
|
* Gets the mastery score
|
|
*/
|
|
public function get_mastery_score()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_mastery_score()', 0);
|
|
}
|
|
if (isset($this->mastery_score)) {
|
|
return $this->mastery_score;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the maximum (score)
|
|
* @return int Maximum score. Defaults to 100 if nothing else is defined
|
|
*/
|
|
public function get_max()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_max()', 0);
|
|
}
|
|
if ($this->type == 'sco') {
|
|
if (isset($this->view_max_score) && !empty($this->view_max_score) && $this->view_max_score > 0) {
|
|
return $this->view_max_score;
|
|
} elseif (isset($this->view_max_score) && $this->view_max_score === '') {
|
|
return $this->view_max_score;
|
|
} else {
|
|
if (!empty($this->max_score)) {
|
|
return $this->max_score;
|
|
} else {
|
|
return 100;
|
|
}
|
|
}
|
|
} else {
|
|
if (!empty($this->max_score)) {
|
|
return $this->max_score;
|
|
} else {
|
|
return 100;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the maximum time allowed for this user in this attempt on this item
|
|
* @return string Time string in SCORM format
|
|
* (HH:MM:SS or HH:MM:SS.SS or HHHH:MM:SS.SS)
|
|
*/
|
|
public function get_max_time_allowed()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_max_time_allowed()', 0);
|
|
}
|
|
if (!empty($this->max_time_allowed)) {
|
|
return $this->max_time_allowed;
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the minimum (score)
|
|
* @return int Minimum score. Defaults to 0
|
|
*/
|
|
public function get_min()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_min()', 0);
|
|
}
|
|
if (!empty($this->min_score)) {
|
|
return $this->min_score;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the parent ID
|
|
* @return int Parent ID. Defaults to null
|
|
*/
|
|
public function get_parent()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_parent()', 0);
|
|
}
|
|
if (!empty($this->parent)) {
|
|
return $this->parent;
|
|
}
|
|
// TODO: Check this return value is valid for children classes (SCORM?).
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Gets the path attribute.
|
|
* @return string Path. Defaults to ''
|
|
*/
|
|
public function get_path()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_path()', 0);
|
|
}
|
|
if (empty($this->path)) {
|
|
return '';
|
|
}
|
|
return $this->path;
|
|
}
|
|
|
|
/**
|
|
* Gets the prerequisites string
|
|
* @return string Empty string or prerequisites string if defined.
|
|
*/
|
|
public function get_prereq_string()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_prereq_string()', 0);
|
|
}
|
|
if (!empty($this->prereq_string)) {
|
|
return $this->prereq_string;
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the prevent_reinit attribute value (and sets it if not set already)
|
|
* @return int 1 or 0 (defaults to 1)
|
|
*/
|
|
public function get_prevent_reinit()
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
if (self::debug > 2) {
|
|
error_log('learnpathItem::get_prevent_reinit()', 0);
|
|
}
|
|
if (!isset($this->prevent_reinit)) {
|
|
if (!empty($this->lp_id)) {
|
|
$table = Database::get_course_table(TABLE_LP_MAIN);
|
|
$sql = "SELECT prevent_reinit
|
|
FROM $table
|
|
WHERE c_id = $course_id AND id = " . $this->lp_id;
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) < 1) {
|
|
$this->error = "Could not find parent learnpath in lp table";
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::get_prevent_reinit() - Returning false',
|
|
0
|
|
);
|
|
}
|
|
return false;
|
|
} else {
|
|
$row = Database::fetch_array($res);
|
|
$this->prevent_reinit = $row['prevent_reinit'];
|
|
}
|
|
} else {
|
|
// Prevent reinit is always 1 by default - see learnpath.class.php
|
|
$this->prevent_reinit = 1;
|
|
}
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::get_prevent_reinit() - Returned ' . $this->prevent_reinit,
|
|
0
|
|
);
|
|
}
|
|
return $this->prevent_reinit;
|
|
}
|
|
|
|
/**
|
|
* Returns 1 if seriousgame_mode is activated, 0 otherwise
|
|
*
|
|
* @return int (0 or 1)
|
|
* @deprecated seriousgame_mode seems not to be used
|
|
* @author ndiechburg <noel@cblue.be>
|
|
**/
|
|
public function get_seriousgame_mode()
|
|
{
|
|
if (self::debug > 2) {
|
|
error_log('learnpathItem::get_seriousgame_mode()', 0);
|
|
}
|
|
$course_id = api_get_course_int_id();
|
|
if (!isset($this->seriousgame_mode)) {
|
|
if (!empty($this->lp_id)) {
|
|
$table = Database::get_course_table(TABLE_LP_MAIN);
|
|
$sql = "SELECT seriousgame_mode
|
|
FROM $table
|
|
WHERE c_id = $course_id AND id = " . $this->lp_id;
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) < 1) {
|
|
$this->error = "Could not find parent learnpath in learnpath table";
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::get_seriousgame_mode() - Returning false',
|
|
0
|
|
);
|
|
}
|
|
return false;
|
|
} else {
|
|
$row = Database::fetch_array($res);
|
|
$this->seriousgame_mode = isset($row['seriousgame_mode']) ? $row['seriousgame_mode'] : 0;
|
|
}
|
|
} else {
|
|
$this->seriousgame_mode = 0; //SeriousGame mode is always off by default
|
|
}
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::get_seriousgame_mode() - Returned ' . $this->seriousgame_mode,
|
|
0
|
|
);
|
|
}
|
|
|
|
return $this->seriousgame_mode;
|
|
}
|
|
|
|
/**
|
|
* Gets the item's reference column
|
|
* @return string The item's reference field (generally used for SCORM identifiers)
|
|
*/
|
|
public function get_ref()
|
|
{
|
|
return $this->ref;
|
|
}
|
|
|
|
/**
|
|
* Gets the list of included resources as a list of absolute or relative
|
|
* paths of resources included in the current item. This allows for a
|
|
* better SCORM export. The list will generally include pictures, flash
|
|
* objects, java applets, or any other stuff included in the source of the
|
|
* current item. The current item is expected to be an HTML file. If it
|
|
* is not, then the function will return and empty list.
|
|
* @param string $type type (one of the Chamilo tools) - optional (otherwise takes the current item's type)
|
|
* @param string $abs_path absolute file path - optional (otherwise takes the current item's path)
|
|
* @param int $recursivity level of recursivity we're in
|
|
* @return array List of file paths.
|
|
* An additional field containing 'local' or 'remote' helps determine if
|
|
* the file should be copied into the zip or just linked
|
|
*/
|
|
public function get_resources_from_source(
|
|
$type = null,
|
|
$abs_path = null,
|
|
$recursivity = 1
|
|
) {
|
|
$max = 5;
|
|
if ($recursivity > $max) {
|
|
return array();
|
|
}
|
|
if (!isset($type)) {
|
|
$type = $this->get_type();
|
|
}
|
|
if (!isset($abs_path)) {
|
|
$path = $this->get_file_path();
|
|
$abs_path = api_get_path(SYS_COURSE_PATH) . api_get_course_path() . '/' . $path;
|
|
}
|
|
|
|
$files_list = array();
|
|
$type = $this->get_type();
|
|
|
|
switch ($type) {
|
|
case TOOL_DOCUMENT :
|
|
case TOOL_QUIZ:
|
|
case 'sco':
|
|
// Get the document and, if HTML, open it.
|
|
if (is_file($abs_path)) {
|
|
// for now, read the whole file in one go (that's gonna be
|
|
// a problem when the file is too big).
|
|
$info = pathinfo($abs_path);
|
|
$ext = $info['extension'];
|
|
|
|
switch (strtolower($ext)) {
|
|
case 'html':
|
|
case 'htm':
|
|
case 'shtml':
|
|
case 'css':
|
|
$wanted_attributes = array(
|
|
'src',
|
|
'url',
|
|
'@import',
|
|
'href',
|
|
'value'
|
|
);
|
|
// Parse it for included resources.
|
|
$file_content = file_get_contents($abs_path);
|
|
// Get an array of attributes from the HTML source.
|
|
$attributes = DocumentManager::parse_HTML_attributes(
|
|
$file_content,
|
|
$wanted_attributes
|
|
);
|
|
|
|
// Look at 'src' attributes in this file
|
|
foreach ($wanted_attributes as $attr) {
|
|
if (isset($attributes[$attr])) {
|
|
// Find which kind of path these are (local or remote).
|
|
$sources = $attributes[$attr];
|
|
|
|
foreach ($sources as $source) {
|
|
// Skip what is obviously not a resource.
|
|
if (strpos(
|
|
$source,
|
|
"+this."
|
|
)
|
|
) {
|
|
continue;
|
|
} // javascript code - will still work unaltered.
|
|
if (strpos(
|
|
$source,
|
|
'.'
|
|
) === false
|
|
) {
|
|
continue;
|
|
} // No dot, should not be an external file anyway.
|
|
if (strpos(
|
|
$source,
|
|
'mailto:'
|
|
)
|
|
) {
|
|
continue;
|
|
} // mailto link.
|
|
if (strpos($source, ';') && !strpos(
|
|
$source,
|
|
'&'
|
|
)
|
|
) {
|
|
continue;
|
|
} // Avoid code - that should help.
|
|
|
|
if ($attr == 'value') {
|
|
if (strpos($source, 'mp3file')) {
|
|
$files_list[] = array(
|
|
substr(
|
|
$source,
|
|
0,
|
|
strpos(
|
|
$source,
|
|
'.swf'
|
|
) + 4
|
|
),
|
|
'local',
|
|
'abs'
|
|
);
|
|
$mp3file = substr(
|
|
$source,
|
|
strpos(
|
|
$source,
|
|
'mp3file='
|
|
) + 8
|
|
);
|
|
if (substr(
|
|
$mp3file,
|
|
0,
|
|
1
|
|
) == '/'
|
|
) {
|
|
$files_list[] = array(
|
|
$mp3file,
|
|
'local',
|
|
'abs'
|
|
);
|
|
} else {
|
|
$files_list[] = array(
|
|
$mp3file,
|
|
'local',
|
|
'rel'
|
|
);
|
|
}
|
|
} elseif (strpos(
|
|
$source,
|
|
'flv='
|
|
) === 0
|
|
) {
|
|
|
|
$source = substr($source, 4);
|
|
if (strpos($source, '&') > 0) {
|
|
$source = substr(
|
|
$source,
|
|
0,
|
|
strpos($source, '&')
|
|
);
|
|
}
|
|
if (strpos(
|
|
$source,
|
|
'://'
|
|
) > 0
|
|
) {
|
|
if (strpos(
|
|
$source,
|
|
api_get_path(
|
|
WEB_PATH
|
|
)
|
|
) !== false
|
|
) {
|
|
// We found the current portal url.
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'url'
|
|
);
|
|
} else {
|
|
// We didn't find any trace of current portal.
|
|
$files_list[] = array(
|
|
$source,
|
|
'remote',
|
|
'url'
|
|
);
|
|
}
|
|
} else {
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'abs'
|
|
);
|
|
}
|
|
continue; // Skipping anything else to avoid two entries
|
|
//(while the others can have sub-files in their url, flv's can't).
|
|
}
|
|
}
|
|
|
|
if (strpos($source, '://') > 0) {
|
|
|
|
// Cut at '?' in a URL with params.
|
|
if (strpos($source, '?') > 0) {
|
|
$second_part = substr(
|
|
$source,
|
|
strpos($source, '?')
|
|
);
|
|
if (strpos(
|
|
$second_part,
|
|
'://'
|
|
) > 0
|
|
) {
|
|
// If the second part of the url contains a url too,
|
|
// treat the second one before cutting.
|
|
|
|
$pos1 = strpos(
|
|
$second_part,
|
|
'='
|
|
);
|
|
$pos2 = strpos(
|
|
$second_part,
|
|
'&'
|
|
);
|
|
$second_part = substr(
|
|
$second_part,
|
|
$pos1 + 1,
|
|
$pos2 - ($pos1 + 1)
|
|
);
|
|
if (strpos(
|
|
$second_part,
|
|
api_get_path(
|
|
WEB_PATH
|
|
)
|
|
) !== false
|
|
) {
|
|
// We found the current portal url.
|
|
$files_list[] = array(
|
|
$second_part,
|
|
'local',
|
|
'url'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$second_part,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
// We didn't find any trace of current portal.
|
|
$files_list[] = array(
|
|
$second_part,
|
|
'remote',
|
|
'url'
|
|
);
|
|
}
|
|
} elseif (strpos(
|
|
$second_part,
|
|
'='
|
|
) > 0
|
|
) {
|
|
if (substr(
|
|
$second_part,
|
|
0,
|
|
1
|
|
) === '/'
|
|
) {
|
|
// Link starts with a /, making it absolute (relative to DocumentRoot).
|
|
$files_list[] = array(
|
|
$second_part,
|
|
'local',
|
|
'abs'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$second_part,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} elseif (strstr(
|
|
$second_part,
|
|
'..'
|
|
) === 0
|
|
) {
|
|
// Link is relative but going back in the hierarchy.
|
|
$files_list[] = array(
|
|
$second_part,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname(
|
|
$abs_path
|
|
);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $second_part
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
// No starting '/', making it relative to current document's path.
|
|
if (substr(
|
|
$second_part,
|
|
0,
|
|
2
|
|
) == './'
|
|
) {
|
|
$second_part = substr(
|
|
$second_part,
|
|
2
|
|
);
|
|
}
|
|
$files_list[] = array(
|
|
$second_part,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname(
|
|
$abs_path
|
|
);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $second_part
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
}
|
|
}
|
|
// Leave that second part behind now.
|
|
$source = substr(
|
|
$source,
|
|
0,
|
|
strpos($source, '?')
|
|
);
|
|
if (strpos(
|
|
$source,
|
|
'://'
|
|
) > 0
|
|
) {
|
|
if (strpos(
|
|
$source,
|
|
api_get_path(
|
|
WEB_PATH
|
|
)
|
|
) !== false
|
|
) {
|
|
// We found the current portal url.
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'url'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$source,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
// We didn't find any trace of current portal.
|
|
$files_list[] = array(
|
|
$source,
|
|
'remote',
|
|
'url'
|
|
);
|
|
}
|
|
} else {
|
|
// No protocol found, make link local.
|
|
if (substr(
|
|
$source,
|
|
0,
|
|
1
|
|
) === '/'
|
|
) {
|
|
// Link starts with a /, making it absolute (relative to DocumentRoot).
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'abs'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$source,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} elseif (strstr(
|
|
$source,
|
|
'..'
|
|
) === 0
|
|
) {
|
|
// Link is relative but going back in the hierarchy.
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname(
|
|
$abs_path
|
|
);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $source
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
// No starting '/', making it relative to current document's path.
|
|
if (substr(
|
|
$source,
|
|
0,
|
|
2
|
|
) == './'
|
|
) {
|
|
$source = substr(
|
|
$source,
|
|
2
|
|
);
|
|
}
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname(
|
|
$abs_path
|
|
);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $source
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count(
|
|
$in_files_list
|
|
) > 0
|
|
) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Found some protocol there.
|
|
if (strpos(
|
|
$source,
|
|
api_get_path(WEB_PATH)
|
|
) !== false
|
|
) {
|
|
// We found the current portal url.
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'url'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$source,
|
|
$recursivity + 1
|
|
);
|
|
if (count($in_files_list) > 0) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
// We didn't find any trace of current portal.
|
|
$files_list[] = array(
|
|
$source,
|
|
'remote',
|
|
'url'
|
|
);
|
|
}
|
|
} else {
|
|
// No protocol found, make link local.
|
|
if (substr($source, 0, 1) === '/') {
|
|
// Link starts with a /, making it absolute (relative to DocumentRoot).
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'abs'
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$source,
|
|
$recursivity + 1
|
|
);
|
|
if (count($in_files_list) > 0) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} elseif (strstr(
|
|
$source,
|
|
'..'
|
|
) === 0
|
|
) {
|
|
// Link is relative but going back in the hierarchy.
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname($abs_path);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $source
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count($in_files_list) > 0) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
} else {
|
|
|
|
// No starting '/', making it relative to current document's path.
|
|
if (strpos(
|
|
$source,
|
|
'width='
|
|
) || strpos(
|
|
$source,
|
|
'autostart='
|
|
)
|
|
) {
|
|
continue;
|
|
}
|
|
|
|
if (substr(
|
|
$source,
|
|
0,
|
|
2
|
|
) == './'
|
|
) {
|
|
$source = substr(
|
|
$source,
|
|
2
|
|
);
|
|
}
|
|
$files_list[] = array(
|
|
$source,
|
|
'local',
|
|
'rel'
|
|
);
|
|
$dir = dirname($abs_path);
|
|
$new_abs_path = realpath(
|
|
$dir . '/' . $source
|
|
);
|
|
$in_files_list[] = learnpathItem::get_resources_from_source(
|
|
TOOL_DOCUMENT,
|
|
$new_abs_path,
|
|
$recursivity + 1
|
|
);
|
|
if (count($in_files_list) > 0) {
|
|
$files_list = array_merge(
|
|
$files_list,
|
|
$in_files_list
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
// The file could not be found.
|
|
return false;
|
|
}
|
|
break;
|
|
default: // Ignore.
|
|
break;
|
|
}
|
|
|
|
$checked_files_list = array();
|
|
$checked_array_list = array();
|
|
foreach ($files_list as $idx => $file) {
|
|
if (!empty($file[0])) {
|
|
if (!in_array($file[0], $checked_files_list)) {
|
|
$checked_files_list[] = $files_list[$idx][0];
|
|
$checked_array_list[] = $files_list[$idx];
|
|
}
|
|
}
|
|
}
|
|
return $checked_array_list;
|
|
}
|
|
|
|
/**
|
|
* Gets the score
|
|
* @return float The current score or 0 if no score set yet
|
|
*/
|
|
public function get_score()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_score()', 0);
|
|
}
|
|
$res = 0;
|
|
if (!empty($this->current_score)) {
|
|
$res = $this->current_score;
|
|
}
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Out of learnpathItem::get_score() - returning ' . $res,
|
|
0
|
|
);
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
/**
|
|
* Gets the item status
|
|
* @param boolean $check_db Do or don't check into the database for the
|
|
* latest value. Optional. Default is true
|
|
* @param boolean $update_local Do or don't update the local attribute
|
|
* value with what's been found in DB
|
|
* @return string Current status or 'Not attempted' if no status set yet
|
|
*/
|
|
public function get_status($check_db = true, $update_local = false)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
$debug = self::debug;
|
|
if ($debug > 0) {
|
|
error_log('learnpathItem::get_status() on item ' . $this->db_id, 0);
|
|
}
|
|
if ($check_db) {
|
|
if ($debug > 2) {
|
|
error_log('learnpathItem::get_status(): checking db', 0);
|
|
}
|
|
if (!empty($this->db_item_view_id)) {
|
|
$table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT status FROM $table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
id = '" . $this->db_item_view_id . "' AND
|
|
view_count = '" . $this->get_attempt_id() . "'";
|
|
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_status() - Checking DB: ' . $sql,
|
|
0
|
|
);
|
|
}
|
|
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) == 1) {
|
|
$row = Database::fetch_array($res);
|
|
if ($update_local) {
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::set_status() :' . $row['status'],
|
|
0
|
|
);
|
|
}
|
|
$this->set_status($row['status']);
|
|
}
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_status() - Returning db value ' . $row['status'],
|
|
0
|
|
);
|
|
}
|
|
return $row['status'];
|
|
}
|
|
}
|
|
} else {
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_status() - in get_status: using attrib',
|
|
0
|
|
);
|
|
}
|
|
if (!empty($this->status)) {
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_status() - Returning attrib: ' . $this->status,
|
|
0
|
|
);
|
|
}
|
|
return $this->status;
|
|
}
|
|
}
|
|
|
|
if ($debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_status() - Returning default ' . $this->possible_status[0],
|
|
0
|
|
);
|
|
}
|
|
|
|
return $this->possible_status[0];
|
|
}
|
|
|
|
/**
|
|
* Gets the suspend data
|
|
*/
|
|
public function get_suspend_data()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_suspend_data()', 0);
|
|
}
|
|
// TODO: Improve cleaning of breaklines ... it works but is it really
|
|
// a beautiful way to do it ?
|
|
if (!empty($this->current_data)) {
|
|
return str_replace(
|
|
array("\r", "\n", "'"),
|
|
array('\r', '\n', "\\'"),
|
|
$this->current_data
|
|
);
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $origin
|
|
* @return string
|
|
*/
|
|
public static function getScormTimeFromParameter($origin = 'php', $time = null)
|
|
{
|
|
$h = get_lang('h');
|
|
if (!isset($time)) {
|
|
if ($origin == 'js') {
|
|
return '00 : 00: 00';
|
|
} else {
|
|
return '00 ' . $h . ' 00 \' 00"';
|
|
}
|
|
} else {
|
|
return api_format_time($time, $origin);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the total time spent on this item view so far
|
|
* @param string $origin Origin of the request. If coming from PHP,
|
|
* send formatted as xxhxx'xx", otherwise use scorm format 00:00:00
|
|
* @param integer|null $given_time Given time is a default time to return formatted
|
|
* @param bool $query_db Whether to get the value from db or from memory
|
|
* @return string A string with the time in SCORM format
|
|
*/
|
|
public function get_scorm_time(
|
|
$origin = 'php',
|
|
$given_time = null,
|
|
$query_db = false
|
|
) {
|
|
$time = null;
|
|
$course_id = api_get_course_int_id();
|
|
if (!isset($given_time)) {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_scorm_time(): given time empty, current_start_time = ' . $this->current_start_time,
|
|
0
|
|
);
|
|
}
|
|
if ($query_db === true) {
|
|
$table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT start_time, total_time
|
|
FROM $table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
id = '" . $this->db_item_view_id . "' AND
|
|
view_count = '" . $this->get_attempt_id() . "'";
|
|
$res = Database::query($sql);
|
|
$row = Database::fetch_array($res);
|
|
$start = $row['start_time'];
|
|
$stop = $start + $row['total_time'];
|
|
} else {
|
|
$start = $this->current_start_time;
|
|
$stop = $this->current_stop_time;
|
|
}
|
|
if (!empty($start)) {
|
|
if (!empty($stop)) {
|
|
$time = $stop - $start;
|
|
} else {
|
|
$time = time() - $start;
|
|
}
|
|
}
|
|
} else {
|
|
$time = $given_time;
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_scorm_time(): intermediate = ' . $time,
|
|
0
|
|
);
|
|
}
|
|
$time = api_format_time($time, $origin);
|
|
|
|
return $time;
|
|
}
|
|
|
|
/**
|
|
* Get the extra terms (tags) that identify this item
|
|
* @return mixed
|
|
*/
|
|
public function get_terms()
|
|
{
|
|
$lp_item = Database::get_course_table(TABLE_LP_ITEM);
|
|
$course_id = api_get_course_int_id();
|
|
$sql = "SELECT * FROM $lp_item
|
|
WHERE
|
|
c_id = $course_id AND
|
|
id='" . intval($this->db_id) . "'";
|
|
$res = Database::query($sql);
|
|
$row = Database::fetch_array($res);
|
|
return $row['terms'];
|
|
}
|
|
|
|
/**
|
|
* Returns the item's title
|
|
* @return string Title
|
|
*/
|
|
public function get_title()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_title()', 0);
|
|
}
|
|
if (empty($this->title)) {
|
|
return '';
|
|
}
|
|
return $this->title;
|
|
}
|
|
|
|
/**
|
|
* Returns the total time used to see that item
|
|
* @return integer Total time
|
|
*/
|
|
public function get_total_time()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log(
|
|
'learnpathItem::get_total_time() for item ' . $this->db_id .
|
|
' - Initially, current_start_time = ' . $this->current_start_time .
|
|
' and current_stop_time = ' . $this->current_stop_time,
|
|
0
|
|
);
|
|
}
|
|
if ($this->current_start_time == 0) {
|
|
// Shouldn't be necessary thanks to the open() method.
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_total_time() - Current start time was empty',
|
|
0
|
|
);
|
|
}
|
|
$this->current_start_time = time();
|
|
}
|
|
//$this->current_stop_time=time();
|
|
if (time() < $this->current_stop_time || $this->current_stop_time == 0
|
|
) {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_total_time() - Current stop time was '
|
|
.'greater than the current time or was empty',
|
|
0
|
|
);
|
|
}
|
|
// If this case occurs, then we risk to write huge time data in db.
|
|
// In theory, stop time should be *always* updated here, but it
|
|
// might be used in some unknown goal.
|
|
$this->current_stop_time = time();
|
|
}
|
|
$time = $this->current_stop_time - $this->current_start_time;
|
|
if ($time < 0) {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_total_time() - Time smaller than 0. Returning 0',
|
|
0
|
|
);
|
|
}
|
|
return 0;
|
|
} else {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_total_time() - Current start time = ' .
|
|
$this->current_start_time . ', current stop time = ' .
|
|
$this->current_stop_time . ' Returning ' . $time . "-----------\n",
|
|
0
|
|
);
|
|
}
|
|
return $time;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the item type
|
|
* @return string The item type (can be doc, dir, sco, asset)
|
|
*/
|
|
public function get_type()
|
|
{
|
|
$res = 'asset';
|
|
if (!empty($this->type)) {
|
|
$res = $this->type;
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::get_type() - Returning ' . $res . ' for item ' . $this->db_id,
|
|
0
|
|
);
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
/**
|
|
* Gets the view count for this item
|
|
* @return int Number of attempts or 0
|
|
*/
|
|
public function get_view_count()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::get_view_count()', 0);
|
|
}
|
|
if (!empty($this->attempt_id)) {
|
|
return $this->attempt_id;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tells if an item is done ('completed','passed','succeeded') or not
|
|
* @return bool True if the item is done ('completed','passed','succeeded'),
|
|
* false otherwise
|
|
*/
|
|
public function is_done()
|
|
{
|
|
$completedStatusList = array(
|
|
'completed',
|
|
'passed',
|
|
'succeeded',
|
|
'failed'
|
|
);
|
|
|
|
if ($this->status_is($completedStatusList)) {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpath::is_done() - Item ' . $this->get_id(
|
|
) . ' is complete',
|
|
0
|
|
);
|
|
}
|
|
|
|
return true;
|
|
} else {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpath::is_done() - Item ' . $this->get_id(
|
|
) . ' is not complete',
|
|
0
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Tells if a restart is allowed (take it from $this->prevent_reinit and $this->status)
|
|
* @return integer -1 if retaking the sco another time for credit is not allowed,
|
|
* 0 if it is not allowed but the item has to be finished
|
|
* 1 if it is allowed. Defaults to 1
|
|
*/
|
|
public function is_restart_allowed()
|
|
{
|
|
if (self::debug > 2) {
|
|
error_log('learnpathItem::is_restart_allowed()', 0);
|
|
}
|
|
$restart = 1;
|
|
$mystatus = $this->get_status(true);
|
|
if ($this->get_prevent_reinit() > 0
|
|
) { // If prevent_reinit == 1 (or more)
|
|
// If status is not attempted or incomplete, authorize retaking (of the same) anyway. Otherwise:
|
|
if ($mystatus != $this->possible_status[0] && $mystatus != $this->possible_status[1]) {
|
|
$restart = -1;
|
|
} else { //status incompleted or not attempted
|
|
$restart = 0;
|
|
}
|
|
} else {
|
|
if ($mystatus == $this->possible_status[0] || $mystatus == $this->possible_status[1]) {
|
|
$restart = -1;
|
|
}
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::is_restart_allowed() - Returning ' . $restart,
|
|
0
|
|
);
|
|
}
|
|
return $restart;
|
|
}
|
|
|
|
/**
|
|
* Opens/launches the item. Initialises runtime values.
|
|
* @return boolean True on success, false on failure.
|
|
*/
|
|
public function open($allow_new_attempt = false)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::open()', 0);
|
|
}
|
|
if ($this->prevent_reinit == 0) {
|
|
$this->current_score = 0;
|
|
$this->current_start_time = time();
|
|
// In this case, as we are opening the item, what is important to us
|
|
// is the database status, in order to know if this item has already
|
|
// been used in the past (rather than just loaded and modified by
|
|
// some javascript but not written in the database).
|
|
// If the database status is different from 'not attempted', we can
|
|
// consider this item has already been used, and as such we can
|
|
// open a new attempt. Otherwise, we'll just reuse the current
|
|
// attempt, which is generally created the first time the item is
|
|
// loaded (for example as part of the table of contents).
|
|
$stat = $this->get_status(true);
|
|
if ($allow_new_attempt && isset($stat) && ($stat != $this->possible_status[0])) {
|
|
$this->attempt_id = $this->attempt_id + 1; // Open a new attempt.
|
|
}
|
|
$this->status = $this->possible_status[1];
|
|
} else {
|
|
/*if ($this->current_start_time == 0) {
|
|
// Small exception for start time, to avoid amazing values.
|
|
$this->current_start_time = time();
|
|
}*/
|
|
// If we don't init start time here, the time is sometimes calculated from the last start time.
|
|
$this->current_start_time = time();
|
|
|
|
//error_log('New LP - reinit blocked by setting', 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Outputs the item contents
|
|
* @return string HTML file (displayable in an <iframe>) or empty string if no path defined
|
|
*/
|
|
public function output()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::output()', 0);
|
|
}
|
|
if (!empty($this->path) and is_file($this->path)) {
|
|
$output = '';
|
|
$output .= file_get_contents($this->path);
|
|
return $output;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Parses the prerequisites string with the AICC logic language
|
|
* @param string $prereqs_string The prerequisites string as it figures in imsmanifest.xml
|
|
* @param Array $items Array of items in the current learnpath object.
|
|
* Although we're in the learnpathItem object, it's necessary to have
|
|
* a list of all items to be able to check the current item's prerequisites
|
|
* @param Array $refs_list List of references
|
|
* (the "ref" column in the lp_item table) that are strings used in the
|
|
* expression of prerequisites.
|
|
* @param integer $user_id The user ID. In some cases like Chamilo quizzes,
|
|
* it's necessary to have the user ID to query other tables (like the results of quizzes)
|
|
* @return boolean True if the list of prerequisites given is entirely satisfied, false otherwise
|
|
*/
|
|
public function parse_prereq($prereqs_string, $items, $refs_list, $user_id)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log(
|
|
'learnpathItem::parse_prereq() for learnpath ' . $this->lp_id . ' with string ' . $prereqs_string,
|
|
0
|
|
);
|
|
}
|
|
|
|
$course_id = api_get_course_int_id();
|
|
// Deal with &, |, ~, =, <>, {}, ,, X*, () in reverse order.
|
|
$this->prereq_alert = '';
|
|
// First parse all parenthesis by using a sequential loop
|
|
// (looking for less-inclusives first).
|
|
|
|
if ($prereqs_string == '_true_') {
|
|
return true;
|
|
}
|
|
if ($prereqs_string == '_false_') {
|
|
if (empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
return false;
|
|
}
|
|
while (strpos($prereqs_string, '(') !== false) {
|
|
// Remove any () set and replace with its value.
|
|
$matches = array();
|
|
$res = preg_match_all(
|
|
'/(\(([^\(\)]*)\))/',
|
|
$prereqs_string,
|
|
$matches
|
|
);
|
|
if ($res) {
|
|
foreach ($matches[2] as $id => $match) {
|
|
$str_res = $this->parse_prereq(
|
|
$match,
|
|
$items,
|
|
$refs_list,
|
|
$user_id
|
|
);
|
|
if ($str_res) {
|
|
$prereqs_string = str_replace(
|
|
$matches[1][$id],
|
|
'_true_',
|
|
$prereqs_string
|
|
);
|
|
} else {
|
|
$prereqs_string = str_replace(
|
|
$matches[1][$id],
|
|
'_false_',
|
|
$prereqs_string
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parenthesis removed, now look for ORs as it is the lesser-priority
|
|
// binary operator (= always uses one text operand).
|
|
if (strpos($prereqs_string, '|') === false) {
|
|
if (self::debug > 1) {
|
|
error_log('New LP - Didnt find any OR, looking for AND', 0);
|
|
}
|
|
if (strpos($prereqs_string, '&') !== false) {
|
|
$list = explode('&', $prereqs_string);
|
|
if (count($list) > 1) {
|
|
$andstatus = true;
|
|
foreach ($list as $condition) {
|
|
$andstatus = $andstatus && $this->parse_prereq(
|
|
$condition,
|
|
$items,
|
|
$refs_list,
|
|
$user_id
|
|
);
|
|
if (!$andstatus) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - One condition in AND was false, short-circuit',
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (empty($this->prereq_alert) && !$andstatus) {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
}
|
|
return $andstatus;
|
|
} else {
|
|
if (isset($items[$refs_list[$list[0]]])) {
|
|
$status = $items[$refs_list[$list[0]]]->get_status(true);
|
|
$returnstatus = ($status == $this->possible_status[2]) || ($status == $this->possible_status[3]);
|
|
if (empty($this->prereq_alert) && !$returnstatus) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
return $returnstatus;
|
|
}
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
return false;
|
|
}
|
|
} else {
|
|
// No ORs found, now look for ANDs.
|
|
|
|
if (self::debug > 1) {
|
|
error_log('New LP - Didnt find any AND, looking for =', 0);
|
|
}
|
|
if (strpos($prereqs_string, '=') !== false) {
|
|
if (self::debug > 1) {
|
|
error_log('New LP - Found =, looking into it', 0);
|
|
}
|
|
// We assume '=' signs only appear when there's nothing else around.
|
|
$params = explode('=', $prereqs_string);
|
|
if (count($params) == 2) {
|
|
// Right number of operands.
|
|
if (isset($items[$refs_list[$params[0]]])) {
|
|
$status = $items[$refs_list[$params[0]]]->get_status(true);
|
|
$returnstatus = ($status == $params[1]);
|
|
if (empty($this->prereq_alert) && !$returnstatus) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
return $returnstatus;
|
|
}
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
|
|
return false;
|
|
}
|
|
} else {
|
|
// No ANDs found, look for <>
|
|
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Didnt find any =, looking for <>',
|
|
0
|
|
);
|
|
}
|
|
if (strpos($prereqs_string, '<>') !== false) {
|
|
if (self::debug > 1) {
|
|
error_log('New LP - Found <>, looking into it', 0);
|
|
}
|
|
// We assume '<>' signs only appear when there's nothing else around.
|
|
$params = explode('<>', $prereqs_string);
|
|
if (count($params) == 2) {
|
|
// Right number of operands.
|
|
if (isset($items[$refs_list[$params[0]]])) {
|
|
$status = $items[$refs_list[$params[0]]]->get_status(true);
|
|
$returnstatus = ($status != $params[1]);
|
|
if (empty($this->prereq_alert) && !$returnstatus) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
|
|
return $returnstatus;
|
|
}
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
return false;
|
|
}
|
|
} else {
|
|
// No <> found, look for ~ (unary)
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Didnt find any =, looking for ~',
|
|
0
|
|
);
|
|
}
|
|
// Only remains: ~ and X*{}
|
|
if (strpos($prereqs_string, '~') !== false) {
|
|
// Found NOT.
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found ~, looking into it',
|
|
0
|
|
);
|
|
}
|
|
$list = array();
|
|
$myres = preg_match(
|
|
'/~([^(\d+\*)\{]*)/',
|
|
$prereqs_string,
|
|
$list
|
|
);
|
|
if ($myres) {
|
|
$returnstatus = !$this->parse_prereq(
|
|
$list[1],
|
|
$items,
|
|
$refs_list,
|
|
$user_id
|
|
);
|
|
if (empty($this->prereq_alert) && !$returnstatus) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
return $returnstatus;
|
|
} else {
|
|
// Strange...
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found ~ but strange string: ' . $prereqs_string,
|
|
0
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
// Finally, look for sets/groups
|
|
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Didnt find any ~, looking for groups',
|
|
0
|
|
);
|
|
}
|
|
// Only groups here.
|
|
$groups = array();
|
|
$groups_there = preg_match_all(
|
|
'/((\d+\*)?\{([^\}]+)\}+)/',
|
|
$prereqs_string,
|
|
$groups
|
|
);
|
|
|
|
if ($groups_there) {
|
|
foreach ($groups[1] as $gr) {
|
|
// Only take the results that correspond to
|
|
// the big brackets-enclosed condition.
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Dealing with group ' . $gr,
|
|
0
|
|
);
|
|
}
|
|
$multi = array();
|
|
$mycond = false;
|
|
if (preg_match(
|
|
'/(\d+)\*\{([^\}]+)\}/',
|
|
$gr,
|
|
$multi
|
|
)
|
|
) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found multiplier ' . $multi[0],
|
|
0
|
|
);
|
|
}
|
|
$count = $multi[1];
|
|
$list = explode(',', $multi[2]);
|
|
$mytrue = 0;
|
|
foreach ($list as $cond) {
|
|
if (isset($items[$refs_list[$cond]])) {
|
|
$status = $items[$refs_list[$cond]]->get_status(true);
|
|
if ($status == $this->possible_status[2] OR
|
|
$status == $this->possible_status[3]
|
|
) {
|
|
$mytrue++;
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found true item, counting.. (' . ($mytrue) . ')',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - item ' . $cond . ' does not exist in items list',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
}
|
|
if ($mytrue >= $count) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Got enough true results, return true',
|
|
0
|
|
);
|
|
}
|
|
$mycond = true;
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Not enough true results',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - No multiplier',
|
|
0
|
|
);
|
|
}
|
|
$list = explode(',', $gr);
|
|
$mycond = true;
|
|
foreach ($list as $cond) {
|
|
if (isset($items[$refs_list[$cond]])) {
|
|
$status = $items[$refs_list[$cond]]->get_status(true);
|
|
if ($status == $this->possible_status[2] OR
|
|
$status == $this->possible_status[3]
|
|
) {
|
|
$mycond = true;
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found true item',
|
|
0
|
|
);
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - ' .
|
|
' Found false item, the set is not true, return false',
|
|
0
|
|
);
|
|
}
|
|
$mycond = false;
|
|
break;
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - item ' . $cond . ' does not exist in items list',
|
|
0
|
|
);
|
|
}
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found false item, the set is not true, return false',
|
|
0
|
|
);
|
|
}
|
|
$mycond = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!$mycond && empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
return $mycond;
|
|
}
|
|
} else {
|
|
|
|
// Nothing found there either. Now return the
|
|
// value of the corresponding resource completion status.
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Didnt find any group, returning value for ' . $prereqs_string,
|
|
0
|
|
);
|
|
}
|
|
|
|
if (isset($refs_list[$prereqs_string]) &&
|
|
isset($items[$refs_list[$prereqs_string]])
|
|
) {
|
|
if ($items[$refs_list[$prereqs_string]]->type == 'quiz') {
|
|
|
|
// 1. Checking the status in current items.
|
|
$status = $items[$refs_list[$prereqs_string]]->get_status(true);
|
|
$returnstatus = $status == $this->possible_status[2] || $status == $this->possible_status[3];
|
|
|
|
if (!$returnstatus) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' not complete',
|
|
0
|
|
);
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' complete',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
|
|
// For one and first attempt.
|
|
if ($this->prevent_reinit == 1) {
|
|
// 2. If is completed we check the results in the DB of the quiz.
|
|
if ($returnstatus) {
|
|
//AND origin_lp_item_id = '.$user_id.'
|
|
$sql = 'SELECT exe_result, exe_weighting
|
|
FROM ' . Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES) . '
|
|
WHERE
|
|
exe_exo_id = ' . $items[$refs_list[$prereqs_string]]->path . ' AND
|
|
exe_user_id = ' . $user_id . ' AND
|
|
orig_lp_id = ' . $this->lp_id . ' AND
|
|
orig_lp_item_id = ' . $prereqs_string . ' AND
|
|
status <> "incomplete"
|
|
ORDER BY exe_date DESC
|
|
LIMIT 0, 1';
|
|
$rs_quiz = Database::query($sql);
|
|
if ($quiz = Database :: fetch_array($rs_quiz)) {
|
|
$minScore = $items[$refs_list[$this->get_id()]]->getPrerequisiteMinScore();
|
|
$maxScore = $items[$refs_list[$this->get_id()]]->getPrerequisiteMaxScore();
|
|
|
|
if (isset($minScore) && isset($minScore)) {
|
|
// Taking min/max prerequisites values see BT#5776
|
|
if ($quiz['exe_result'] >= $minScore && $quiz['exe_result'] <= $maxScore) {
|
|
$returnstatus = true;
|
|
} else {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
$returnstatus = false;
|
|
}
|
|
} else {
|
|
// Classic way
|
|
if ($quiz['exe_result'] >= $items[$refs_list[$prereqs_string]]->get_mastery_score()) {
|
|
$returnstatus = true;
|
|
} else {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
$returnstatus = false;
|
|
}
|
|
}
|
|
} else {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
$returnstatus = false;
|
|
}
|
|
}
|
|
} else {
|
|
// 3. for multiple attempts we check that there are minimum 1 item completed.
|
|
|
|
// Checking in the database.
|
|
$sql = 'SELECT exe_result, exe_weighting
|
|
FROM ' . Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES) . '
|
|
WHERE
|
|
exe_exo_id = ' . $items[$refs_list[$prereqs_string]]->path . ' AND
|
|
exe_user_id = ' . $user_id . ' AND
|
|
orig_lp_id = ' . $this->lp_id . ' AND
|
|
orig_lp_item_id = ' . $prereqs_string . ' ';
|
|
|
|
$rs_quiz = Database::query($sql);
|
|
if (Database::num_rows($rs_quiz) > 0) {
|
|
while ($quiz = Database :: fetch_array($rs_quiz)) {
|
|
|
|
$minScore = $items[$refs_list[$this->get_id()]]->getPrerequisiteMinScore();
|
|
$maxScore = $items[$refs_list[$this->get_id()]]->getPrerequisiteMaxScore();
|
|
|
|
if (isset($minScore) && isset($minScore)) {
|
|
|
|
// Taking min/max prerequisites values see BT#5776
|
|
if ($quiz['exe_result'] >= $minScore && $quiz['exe_result'] <= $maxScore) {
|
|
$returnstatus = true;
|
|
break;
|
|
} else {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
$returnstatus = false;
|
|
}
|
|
} else {
|
|
if ($quiz['exe_result'] >= $items[$refs_list[$prereqs_string]]->get_mastery_score()) {
|
|
$returnstatus = true;
|
|
break;
|
|
} else {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
$returnstatus = false;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
$returnstatus = false;
|
|
}
|
|
}
|
|
return $returnstatus;
|
|
} else {
|
|
$status = $items[$refs_list[$prereqs_string]]->get_status(false);
|
|
$returnstatus = $status == $this->possible_status[2] || $status == $this->possible_status[3];
|
|
|
|
if (!$returnstatus) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' not complete',
|
|
0
|
|
);
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' complete',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
|
|
if ($returnstatus && $this->prevent_reinit == 1) {
|
|
// I would prefer check in the database.
|
|
$lp_item_view = Database::get_course_table(
|
|
TABLE_LP_ITEM_VIEW
|
|
);
|
|
$lp_view = Database::get_course_table(
|
|
TABLE_LP_VIEW
|
|
);
|
|
|
|
$sql = 'SELECT id FROM ' . $lp_view . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
user_id = ' . $user_id . ' AND
|
|
lp_id = ' . $this->lp_id . '
|
|
LIMIT 0, 1';
|
|
$rs_lp = Database::query($sql);
|
|
$lp_id = Database :: fetch_row(
|
|
$rs_lp
|
|
);
|
|
$my_lp_id = $lp_id[0];
|
|
|
|
$sql = 'SELECT status FROM ' . $lp_item_view . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
lp_view_id = ' . $my_lp_id . ' AND
|
|
lp_item_id = ' . $refs_list[$prereqs_string] . '
|
|
LIMIT 0, 1';
|
|
$rs_lp = Database::query($sql);
|
|
$status_array = Database :: fetch_row(
|
|
$rs_lp
|
|
);
|
|
$status = $status_array[0];
|
|
|
|
$returnstatus = ($status == $this->possible_status[2]) || ($status == $this->possible_status[3]);
|
|
if (!$returnstatus && empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
}
|
|
if (!$returnstatus) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' not complete',
|
|
0
|
|
);
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Prerequisite ' . $prereqs_string . ' complete',
|
|
0
|
|
);
|
|
}
|
|
}
|
|
}
|
|
return $returnstatus;
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Could not find ' . $prereqs_string . ' in ' . print_r(
|
|
$refs_list,
|
|
true
|
|
),
|
|
0
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$list = explode("\|", $prereqs_string);
|
|
if (count($list) > 1) {
|
|
if (self::debug > 1) {
|
|
error_log('New LP - Found OR, looking into it', 0);
|
|
}
|
|
$orstatus = false;
|
|
foreach ($list as $condition) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - Found OR, adding it (' . $condition . ')',
|
|
0
|
|
);
|
|
}
|
|
$orstatus = $orstatus || $this->parse_prereq(
|
|
$condition,
|
|
$items,
|
|
$refs_list,
|
|
$user_id
|
|
);
|
|
if ($orstatus) {
|
|
// Shortcircuit OR.
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - One condition in OR was true, short-circuit',
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (!$orstatus && empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
}
|
|
return $orstatus;
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - OR was found but only one elem present !?',
|
|
0
|
|
);
|
|
}
|
|
if (isset($items[$refs_list[$list[0]]])) {
|
|
$status = $items[$refs_list[$list[0]]]->get_status(true);
|
|
$returnstatus = (($status == 'completed') || ($status == 'passed'));
|
|
if (!$returnstatus && empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang(
|
|
'LearnpathPrereqNotCompleted'
|
|
);
|
|
}
|
|
return $returnstatus;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (empty($this->prereq_alert)) {
|
|
$this->prereq_alert = get_lang('LearnpathPrereqNotCompleted');
|
|
}
|
|
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - End of parse_prereq. Error code is now ' . $this->prereq_alert,
|
|
0
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Reinits all local values as the learnpath is restarted
|
|
* @return boolean True on success, false otherwise
|
|
*/
|
|
public function restart()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::restart()', 0);
|
|
}
|
|
if ($this->type == 'sco') {
|
|
// If this is a sco, Chamilo can't update the time without an
|
|
// explicit scorm call
|
|
$this->current_start_time = 0;
|
|
$this->current_stop_time = 0; //Those 0 value have this effect
|
|
$this->last_scorm_session_time = 0;
|
|
}
|
|
$this->save();
|
|
|
|
//For serious game : We reuse same attempt_id
|
|
if ($this->get_seriousgame_mode() == 1 && $this->type == 'sco') {
|
|
$this->current_start_time = 0;
|
|
$this->current_stop_time = 0;
|
|
return true;
|
|
}
|
|
$allowed = $this->is_restart_allowed();
|
|
if ($allowed === -1) {
|
|
// Nothing allowed, do nothing.
|
|
} elseif ($allowed === 1) {
|
|
// Restart as new attempt is allowed, record a new attempt.
|
|
$this->attempt_id = $this->attempt_id + 1; // Simply reuse the previous attempt_id.
|
|
$this->current_score = 0;
|
|
$this->current_start_time = 0;
|
|
$this->current_stop_time = 0;
|
|
$this->current_data = '';
|
|
$this->status = $this->possible_status[0];
|
|
$this->interactions_count = 0;
|
|
$this->interactions = array();
|
|
$this->objectives_count = 0;
|
|
$this->objectives = array();
|
|
$this->lesson_location = '';
|
|
if ($this->type != TOOL_QUIZ) {
|
|
$this->write_to_db();
|
|
}
|
|
} else {
|
|
// Restart current element is allowed (because it's not finished yet),
|
|
// reinit current.
|
|
//$this->current_score = 0;
|
|
$this->current_start_time = 0;
|
|
$this->current_stop_time = 0;
|
|
//$this->current_data = '';
|
|
//$this->status = $this->possible_status[0];
|
|
$this->interactions_count = $this->get_interactions_count(true);
|
|
if ($this->type == 'sco') {
|
|
$this->scorm_init_time();
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Saves data in the database
|
|
* @param boolean $from_outside Save from URL params (1) or from object attributes (0)
|
|
* @param boolean $prereqs_complete The results of a check on prerequisites for this item.
|
|
* True if prerequisites are completed, false otherwise. Defaults to false. Only used if not sco or au
|
|
* @return boolean True on success, false on failure
|
|
*/
|
|
public function save($from_outside = true, $prereqs_complete = false)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::save()', 0);
|
|
}
|
|
// First check if parameters passed via GET can be saved here
|
|
// in case it's a SCORM, we should get:
|
|
|
|
if ($this->type == 'sco' || $this->type == 'au') {
|
|
$status = $this->get_status(true);
|
|
if ($this->prevent_reinit == 1 &&
|
|
$status != $this->possible_status[0] && // not attempted
|
|
$status != $this->possible_status[1] //incomplete
|
|
) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::save() - save reinit blocked by setting',
|
|
0
|
|
);
|
|
}
|
|
// Do nothing because the status has already been set. Don't allow it to change.
|
|
// TODO: Check there isn't a special circumstance where this should be saved.
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::save() - SCORM save request received',
|
|
0
|
|
);
|
|
}
|
|
|
|
// Get all new settings from the URL
|
|
if ($from_outside) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::save() - Getting item data from outside',
|
|
0
|
|
);
|
|
}
|
|
foreach ($_GET as $param => $value) {
|
|
switch ($param) {
|
|
case 'score':
|
|
$this->set_score($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting score to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'max':
|
|
$this->set_max_score($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting view_max_score to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'min':
|
|
$this->min_score = $value;
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting min_score to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'lesson_status':
|
|
if (!empty($value)) {
|
|
$this->set_status($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting status to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
}
|
|
break;
|
|
case 'time':
|
|
$this->set_time($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting time to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'suspend_data':
|
|
$this->current_data = $value;
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting suspend_data to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'lesson_location':
|
|
$this->set_lesson_location($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting lesson_location to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'core_exit':
|
|
$this->set_core_exit($value);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::save() - setting core_exit to ' . $value,
|
|
0
|
|
);
|
|
}
|
|
break;
|
|
case 'interactions':
|
|
//$interactions = unserialize($value);
|
|
//foreach($interactions as $interaction){
|
|
// ;
|
|
//}
|
|
break;
|
|
case 'objectives':
|
|
break;
|
|
//case 'maxtimeallowed':
|
|
//$this->set_max_time_allowed($value);
|
|
//break;
|
|
/*
|
|
case 'objectives._count':
|
|
$this->attempt_id = $value;
|
|
break;
|
|
*/
|
|
default:
|
|
// Ignore.
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::save() - Using inside item status',
|
|
0
|
|
);
|
|
}
|
|
// Do nothing, just let the local attributes be used.
|
|
}
|
|
}
|
|
} else { // If not SCO, such messages should not be expected.
|
|
$type = strtolower($this->type);
|
|
switch ($type) {
|
|
case 'asset':
|
|
if ($prereqs_complete) {
|
|
$this->set_status($this->possible_status[2]);
|
|
}
|
|
break;
|
|
case TOOL_HOTPOTATOES:
|
|
break;
|
|
case TOOL_QUIZ:
|
|
return false;
|
|
break;
|
|
default:
|
|
// For now, everything that is not sco and not asset is set to
|
|
// completed when saved.
|
|
if ($prereqs_complete) {
|
|
$this->set_status($this->possible_status[2]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'New LP - End of learnpathItem::save() - Calling write_to_db()',
|
|
0
|
|
);
|
|
}
|
|
|
|
return $this->write_to_db();
|
|
}
|
|
|
|
/**
|
|
* Sets the number of attempt_id to a given value
|
|
* @param integer $num The given value to set attempt_id to
|
|
* @return boolean TRUE on success, FALSE otherwise
|
|
*/
|
|
public function set_attempt_id($num)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_attempt_id()', 0);
|
|
}
|
|
if ($num == strval(intval($num)) && $num >= 0) {
|
|
$this->attempt_id = $num;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the core_exit value to the one given
|
|
* @return bool $value True (always)
|
|
*/
|
|
public function set_core_exit($value)
|
|
{
|
|
switch ($value) {
|
|
case '':
|
|
$this->core_exit = '';
|
|
break;
|
|
case 'suspend':
|
|
$this->core_exit = 'suspend';
|
|
break;
|
|
default:
|
|
$this->core_exit = 'none';
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sets the item's description
|
|
* @param string $string Description
|
|
*
|
|
* @return void
|
|
*/
|
|
public function set_description($string = '')
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_description()', 0);
|
|
}
|
|
if (!empty($string)) {
|
|
$this->description = $string;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the lesson_location value
|
|
* @param string $location lesson_location as provided by the SCO
|
|
* @return boolean True on success, false otherwise
|
|
*/
|
|
public function set_lesson_location($location)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_lesson_location()', 0);
|
|
}
|
|
if (isset($location)) {
|
|
$this->lesson_location = $location;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the item's depth level in the LP tree (0 is at root)
|
|
* @param integer $int Level
|
|
* @return void
|
|
*/
|
|
public function set_level($int = 0)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_level(' . $int . ')', 0);
|
|
}
|
|
if (!empty($int) AND $int == strval(intval($int))) {
|
|
$this->level = $int;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the lp_view id this item view is registered to
|
|
* @param int $lp_view_id lp_view DB ID
|
|
* @param int $course_id
|
|
* @return bool
|
|
* @todo //todo insert into lp_item_view if lp_view not exists
|
|
*/
|
|
public function set_lp_view($lp_view_id, $course_id = null)
|
|
{
|
|
$lp_view_id = intval($lp_view_id);
|
|
|
|
if (empty($course_id)) {
|
|
$course_id = api_get_course_int_id();
|
|
} else {
|
|
$course_id = intval($course_id);
|
|
}
|
|
|
|
$lpItemId = $this->get_id();
|
|
|
|
if (empty($lpItemId)) {
|
|
if (self::debug > 0) {
|
|
error_log(
|
|
'learnpathItem::set_lp_view(' . $lp_view_id . ') $lpItemId is empty',
|
|
0
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
if (empty($lp_view_id)) {
|
|
if (self::debug > 0) {
|
|
error_log(
|
|
'learnpathItem::set_lp_view(' . $lp_view_id . ') $lp_view_id is empty',
|
|
0
|
|
);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_lp_view(' . $lp_view_id . ')', 0);
|
|
}
|
|
|
|
$this->view_id = $lp_view_id;
|
|
|
|
$item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
// Get the lp_item_view with the highest view_count.
|
|
$sql = "SELECT * FROM $item_view_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $lpItemId . " AND
|
|
lp_view_id = " . $lp_view_id . "
|
|
ORDER BY view_count DESC";
|
|
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::set_lp_view() - Querying lp_item_view: ' . $sql,
|
|
0
|
|
);
|
|
}
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) > 0) {
|
|
$row = Database::fetch_array($res);
|
|
$this->db_item_view_id = $row['id'];
|
|
$this->attempt_id = $row['view_count'];
|
|
$this->current_score = $row['score'];
|
|
$this->current_data = $row['suspend_data'];
|
|
$this->view_max_score = $row['max_score'];
|
|
$this->status = $row['status'];
|
|
$this->current_start_time = $row['start_time'];
|
|
$this->current_stop_time = $this->current_start_time + $row['total_time'];
|
|
$this->lesson_location = $row['lesson_location'];
|
|
$this->core_exit = $row['core_exit'];
|
|
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::set_lp_view() - Updated item object with database values',
|
|
0
|
|
);
|
|
}
|
|
|
|
// Now get the number of interactions for this little guy.
|
|
$item_view_interaction_table = Database::get_course_table(
|
|
TABLE_LP_IV_INTERACTION
|
|
);
|
|
$sql = "SELECT * FROM $item_view_interaction_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_iv_id = '" . $this->db_item_view_id . "'";
|
|
|
|
$res = Database::query($sql);
|
|
if ($res !== false) {
|
|
$this->interactions_count = Database::num_rows($res);
|
|
} else {
|
|
$this->interactions_count = 0;
|
|
}
|
|
// Now get the number of objectives for this little guy.
|
|
$item_view_objective_table = Database::get_course_table(
|
|
TABLE_LP_IV_OBJECTIVE
|
|
);
|
|
$sql = "SELECT * FROM $item_view_objective_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_iv_id = '" . $this->db_item_view_id . "'";
|
|
|
|
$res = Database::query($sql);
|
|
if ($res !== false) {
|
|
$this->objectives_count = Database::num_rows($res);
|
|
} else {
|
|
$this->objectives_count = 0;
|
|
}
|
|
}
|
|
|
|
// End
|
|
if (self::debug > 2) {
|
|
error_log('New LP - End of learnpathItem::set_lp_view()', 0);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sets the path
|
|
* @param string $string Path
|
|
* @return void
|
|
*/
|
|
public function set_path($string = '')
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_path()', 0);
|
|
}
|
|
if (!empty($string)) {
|
|
$this->path = $string;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the prevent_reinit attribute. This is based on the LP value and is set at creation time for
|
|
* each learnpathItem. It is a (bad?) way of avoiding a reference to the LP when saving an item.
|
|
* @param integer 1 for "prevent", 0 for "don't prevent" saving freshened values (new "not attempted" status etc)
|
|
* @return void
|
|
*/
|
|
public function set_prevent_reinit($prevent)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_prevent_reinit()', 0);
|
|
}
|
|
if ($prevent) {
|
|
$this->prevent_reinit = 1;
|
|
} else {
|
|
$this->prevent_reinit = 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the score value. If the mastery_score is set and the score reaches
|
|
* it, then set the status to 'passed'.
|
|
* @param float $score Score
|
|
* @return boolean True on success, false otherwise
|
|
*/
|
|
public function set_score($score)
|
|
{
|
|
$debug = self::debug;
|
|
if ($debug > 0) {
|
|
error_log('learnpathItem::set_score(' . $score . ')', 0);
|
|
}
|
|
if (($this->max_score <= 0 || $score <= $this->max_score) && ($score >= $this->min_score)) {
|
|
$this->current_score = $score;
|
|
$masteryScore = $this->get_mastery_score();
|
|
$current_status = $this->get_status(false);
|
|
|
|
// Fixes bug when SCORM doesn't send a mastery score even if they sent a score!
|
|
if ($masteryScore == -1) {
|
|
$masteryScore = $this->max_score;
|
|
}
|
|
|
|
if ($debug > 0) {
|
|
error_log('get_mastery_score: ' . $masteryScore);
|
|
error_log('current_status: ' . $current_status);
|
|
error_log('current score : ' . $this->current_score);
|
|
}
|
|
|
|
// If mastery_score is set AND the current score reaches the mastery
|
|
// score AND the current status is different from 'completed', then
|
|
// set it to 'passed'.
|
|
/*
|
|
if ($master != -1 && $this->current_score >= $master && $current_status != $this->possible_status[2]) {
|
|
if ($debug > 0) error_log('Status changed to: '.$this->possible_status[3]);
|
|
$this->set_status($this->possible_status[3]); //passed
|
|
} elseif ($master != -1 && $this->current_score < $master) {
|
|
if ($debug > 0) error_log('Status changed to: '.$this->possible_status[4]);
|
|
$this->set_status($this->possible_status[4]); //failed
|
|
}*/
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the maximum score for this item
|
|
* @param int $score Maximum score - must be a decimal or an empty string
|
|
*
|
|
* @return boolean True on success, false on error
|
|
*/
|
|
public function set_max_score($score)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_max_score(' . $score . ')', 0);
|
|
}
|
|
if (is_int($score) || $score == '') {
|
|
$this->view_max_score = $score;
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::set_max_score() - ' .
|
|
'Updated object score of item ' . $this->db_id .
|
|
' to ' . $this->view_max_score,
|
|
0
|
|
);
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sets the status for this item
|
|
* @param string $status Status - must be one of the values defined in $this->possible_status
|
|
* (this affects the status setting)
|
|
* @return boolean True on success, false on error
|
|
*/
|
|
public function set_status($status)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_status(' . $status . ')', 0);
|
|
}
|
|
|
|
$found = false;
|
|
foreach ($this->possible_status as $possible) {
|
|
if (preg_match('/^' . $possible . '$/i', $status)) {
|
|
$found = true;
|
|
}
|
|
}
|
|
|
|
if ($found) {
|
|
$this->status = $status;
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::set_status() - '.
|
|
'Updated object status of item ' . $this->db_id .
|
|
' to ' . $this->status,
|
|
0
|
|
);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
$this->status = $this->possible_status[0];
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Set the (indexing) terms for this learnpath item
|
|
* @param string $terms Terms, as a comma-split list
|
|
* @return boolean Always return true
|
|
*/
|
|
public function set_terms($terms)
|
|
{
|
|
global $charset;
|
|
$course_id = api_get_course_int_id();
|
|
$lp_item = Database::get_course_table(TABLE_LP_ITEM);
|
|
require_once api_get_path(
|
|
LIBRARY_PATH
|
|
) . 'search/ChamiloIndexer.class.php';
|
|
$a_terms = preg_split('/,/', $terms);
|
|
$i_terms = preg_split('/,/', $this->get_terms());
|
|
foreach ($i_terms as $term) {
|
|
if (!in_array($term, $a_terms)) {
|
|
array_push($a_terms, $term);
|
|
}
|
|
}
|
|
$new_terms = $a_terms;
|
|
$new_terms_string = implode(',', $new_terms);
|
|
|
|
// TODO: Validate csv string.
|
|
$terms = Database::escape_string(api_htmlentities($new_terms_string, ENT_QUOTES, $charset));
|
|
$sql = "UPDATE $lp_item
|
|
SET terms = '$terms'
|
|
WHERE
|
|
c_id = $course_id AND
|
|
id=" . $this->get_id();
|
|
Database::query($sql);
|
|
// Save it to search engine.
|
|
if (api_get_setting('search_enabled') == 'true') {
|
|
$di = new ChamiloIndexer();
|
|
$di->update_terms($this->get_search_did(), $new_terms, 'T');
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get the document ID from inside the text index database
|
|
* @return int Search index database document ID
|
|
*/
|
|
public function get_search_did()
|
|
{
|
|
return $this->search_did;
|
|
}
|
|
|
|
/**
|
|
* Sets the item viewing time in a usable form, given that SCORM packages
|
|
* often give it as 00:00:00.0000
|
|
* @param string Time as given by SCORM
|
|
* @return void
|
|
*/
|
|
public function set_time($scorm_time, $format = 'scorm')
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_time(' . $scorm_time . ')', 0);
|
|
}
|
|
if ($scorm_time == 0
|
|
and ($this->type != 'sco')
|
|
and $this->current_start_time != 0)
|
|
{
|
|
$my_time = time() - $this->current_start_time;
|
|
if ($my_time > 0) {
|
|
$this->update_time($my_time);
|
|
if (self::debug > 0) {
|
|
error_log(
|
|
'learnpathItem::set_time(' . $scorm_time . ') - ' .
|
|
'found asset - set time to ' . $my_time,
|
|
0
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
switch ($format) {
|
|
case 'scorm':
|
|
$res = array();
|
|
if (preg_match(
|
|
'/^(\d{1,4}):(\d{2}):(\d{2})(\.\d{1,4})?/',
|
|
$scorm_time,
|
|
$res
|
|
)
|
|
) {
|
|
$time = time();
|
|
$hour = $res[1];
|
|
$min = $res[2];
|
|
$sec = $res[3];
|
|
// Getting total number of seconds spent.
|
|
$total_sec = $hour * 3600 + $min * 60 + $sec;
|
|
$this->scorm_update_time($total_sec);
|
|
}
|
|
break;
|
|
case 'int':
|
|
$this->scorm_update_time($scorm_time);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the item's title
|
|
* @param string $string Title
|
|
* @return void
|
|
*/
|
|
public function set_title($string = '')
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_title()', 0);
|
|
}
|
|
if (!empty($string)) {
|
|
$this->title = $string;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the item's type
|
|
* @param string $string Type
|
|
* @return void
|
|
*/
|
|
public function set_type($string = '')
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::set_type()', 0);
|
|
}
|
|
if (!empty($string)) {
|
|
$this->type = $string;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if the current status is part of the list of status given
|
|
* @param array $list An array of status to check for.
|
|
* If the current status is one of the strings, return true
|
|
*
|
|
* @return boolean True if the status was one of the given strings,
|
|
* false otherwise
|
|
*/
|
|
public function status_is($list = array())
|
|
{
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
'learnpathItem::status_is(' . print_r(
|
|
$list,
|
|
true
|
|
) . ') on item ' . $this->db_id,
|
|
0
|
|
);
|
|
}
|
|
$currentStatus = $this->get_status(true);
|
|
if (empty($currentStatus)) {
|
|
return false;
|
|
}
|
|
$found = false;
|
|
foreach ($list as $status) {
|
|
if (preg_match('/^' . $status . '$/i', $currentStatus)) {
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - learnpathItem::status_is() - Found status ' .
|
|
$status . ' corresponding to current status',
|
|
0
|
|
);
|
|
}
|
|
$found = true;
|
|
|
|
return $found;
|
|
}
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'New LP - learnpathItem::status_is() - Status ' .
|
|
$currentStatus . ' did not match request',
|
|
0
|
|
);
|
|
}
|
|
|
|
return $found;
|
|
}
|
|
|
|
/**
|
|
* Updates the time info according to the given session_time
|
|
* @param integer $total_sec Time in seconds
|
|
* @return void
|
|
* TODO: Make this method better by allowing better/multiple time slices.
|
|
*/
|
|
public function update_time($total_sec = 0)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::update_time(' . $total_sec . ')', 0);
|
|
}
|
|
if ($total_sec >= 0) {
|
|
// Getting start time from finish time. The only problem in the calculation is it might be
|
|
// modified by the scripts processing time.
|
|
$now = time();
|
|
$start = $now - $total_sec;
|
|
$this->current_start_time = $start;
|
|
$this->current_stop_time = $now;
|
|
/*if (empty($this->current_start_time)) {
|
|
$this->current_start_time = $start;
|
|
$this->current_stop_time = $now;
|
|
} else {
|
|
//if ($this->current_stop_time != $this->current_start_time) {
|
|
// If the stop time has already been set before to something else
|
|
// than the start time, add the given time to what's already been
|
|
// recorder.
|
|
// This is the SCORM way of doing things, because the time comes from
|
|
// core.session_time, not core.total_time
|
|
// UPDATE: adding time to previous time is only done on SCORM's finish()
|
|
// call, not normally, so for now ignore this section.
|
|
//$this->current_stop_time = $this->current_stop_time + $stop;
|
|
//error_log('New LP - Adding '.$stop.' seconds - now '.$this->current_stop_time, 0);
|
|
//} else {
|
|
// If no previous stop time set, use the one just calculated now from
|
|
// start time.
|
|
//$this->current_start_time = $start;
|
|
//$this->current_stop_time = $now;
|
|
//error_log('New LP - Setting '.$stop.' seconds - now '.$this->current_stop_time, 0);
|
|
//}
|
|
}*/
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Special scorm update time function. This function will update time
|
|
* directly into db for scorm objects
|
|
* @param int $total_sec Total number of seconds
|
|
**/
|
|
public function scorm_update_time($total_sec = 0)
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('Funcion called: scorm_update_time');
|
|
}
|
|
if (self::debug > 0) {
|
|
error_log("total_sec: $total_sec");
|
|
}
|
|
|
|
//Step 1 : get actual total time stored in db
|
|
$item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$get_view_sql = 'SELECT total_time, status FROM ' . $item_view_table . '
|
|
WHERE c_id = ' . $course_id . '
|
|
AND lp_item_id="' . $this->db_id . '"
|
|
AND lp_view_id="' . $this->view_id . '"
|
|
AND view_count="' . $this->attempt_id . '" ;';
|
|
$result = Database::query($get_view_sql);
|
|
$row = Database::fetch_array($result);
|
|
|
|
if (!isset($row['total_time'])) {
|
|
$total_time = 0;
|
|
} else {
|
|
$total_time = $row['total_time'];
|
|
}
|
|
if (self::debug > 0) {
|
|
error_log("total_time: $total_time");
|
|
}
|
|
|
|
//Step 2.1 : if normal mode total_time = total_time + total_sec
|
|
if (api_get_setting('scorm_cumulative_session_time') != 'false') {
|
|
$total_time += $total_sec;
|
|
//$this->last_scorm_session_time = $total_sec;
|
|
} else {
|
|
//Step 2.2 : if not cumulative mode total_time = total_time - last_update + total_sec
|
|
$total_time = $total_time - $this->last_scorm_session_time + $total_sec;
|
|
$this->last_scorm_session_time = $total_sec;
|
|
}
|
|
//Step 3 update db only if status != completed, passed, browsed or seriousgamemode not activated
|
|
$case_completed = array(
|
|
'completed',
|
|
'passed',
|
|
'browsed',
|
|
'failed'
|
|
); //TODO COMPLETE
|
|
|
|
if ($this->seriousgame_mode != 1 ||
|
|
!in_array($row['status'], $case_completed)
|
|
) {
|
|
$sql = "UPDATE $item_view_table
|
|
SET total_time = '$total_time'
|
|
WHERE c_id = $course_id
|
|
AND lp_item_id = {$this->db_id}
|
|
AND lp_view_id = {$this->view_id}
|
|
AND view_count = {$this->attempt_id}";
|
|
if (self::debug > 0) {
|
|
error_log($sql);
|
|
}
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the total_time to 0 into db
|
|
**/
|
|
public function scorm_init_time()
|
|
{
|
|
$item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$course_id = api_get_course_int_id();
|
|
$sql = 'UPDATE ' . $item_view_table . '
|
|
SET total_time = 0, start_time=' . time() . '
|
|
WHERE c_id = ' . $course_id . '
|
|
AND lp_item_id="' . $this->db_id . '"
|
|
AND lp_view_id="' . $this->view_id . '"
|
|
AND view_count="' . $this->attempt_id . '" ;';
|
|
Database::query($sql);
|
|
}
|
|
|
|
/**
|
|
* Write objectives to DB. This method is separate from write_to_db() because otherwise
|
|
* objectives are lost as a side effect to AJAX and session concurrent access
|
|
* @return boolean True or false on error
|
|
*/
|
|
public function write_objectives_to_db()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::write_objectives_to_db()', 0);
|
|
}
|
|
$course_id = api_get_course_int_id();
|
|
if (is_array($this->objectives) && count($this->objectives) > 0) {
|
|
// Save objectives.
|
|
$tbl = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT id
|
|
FROM $tbl
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . $this->attempt_id;
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) > 0) {
|
|
$row = Database::fetch_array($res);
|
|
$lp_iv_id = $row[0];
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Got item_view_id ' .
|
|
$lp_iv_id . ', now checking objectives ',
|
|
0
|
|
);
|
|
}
|
|
foreach ($this->objectives as $index => $objective) {
|
|
$iva_table = Database::get_course_table(
|
|
TABLE_LP_IV_OBJECTIVE
|
|
);
|
|
$iva_sql = "SELECT id FROM $iva_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_iv_id = $lp_iv_id AND
|
|
objective_id = '" . Database::escape_string($objective[0]) . "'";
|
|
$iva_res = Database::query($iva_sql);
|
|
// id(0), type(1), time(2), weighting(3),
|
|
// correct_responses(4), student_response(5),
|
|
// result(6), latency(7)
|
|
if (Database::num_rows($iva_res) > 0) {
|
|
// Update (or don't).
|
|
$iva_row = Database::fetch_array($iva_res);
|
|
$iva_id = $iva_row[0];
|
|
$ivau_sql = "UPDATE $iva_table " .
|
|
"SET objective_id = '" . Database::escape_string(
|
|
$objective[0]
|
|
) . "'," .
|
|
"status = '" . Database::escape_string(
|
|
$objective[1]
|
|
) . "'," .
|
|
"score_raw = '" . Database::escape_string(
|
|
$objective[2]
|
|
) . "'," .
|
|
"score_min = '" . Database::escape_string(
|
|
$objective[4]
|
|
) . "'," .
|
|
"score_max = '" . Database::escape_string(
|
|
$objective[3]
|
|
) . "' " .
|
|
"WHERE c_id = $course_id AND id = $iva_id";
|
|
Database::query($ivau_sql);
|
|
} else {
|
|
// Insert new one.
|
|
$params = array(
|
|
'c_id' => $course_id,
|
|
'lp_iv_id' => $lp_iv_id,
|
|
'order_id' => $index,
|
|
'objective_id' => $objective[0],
|
|
'status' => $objective[1],
|
|
'score_raw' => $objective[2],
|
|
'score_min' => $objective[4],
|
|
'score_max' => $objective[3]
|
|
);
|
|
|
|
$insertId = Database::insert($iva_table, $params);
|
|
|
|
$sql = "UPDATE $iva_table SET id = iid WHERE iid = $insertId";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Writes the current data to the database
|
|
* @return boolean Query result
|
|
*/
|
|
public function write_to_db()
|
|
{
|
|
if (self::debug > 0) {
|
|
error_log('learnpathItem::write_to_db()', 0);
|
|
}
|
|
|
|
// Check the session visibility.
|
|
if (!api_is_allowed_to_session_edit()) {
|
|
if (self::debug > 0) {
|
|
error_log('return false api_is_allowed_to_session_edit');
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
$course_id = api_get_course_int_id();
|
|
$mode = $this->get_lesson_mode();
|
|
$credit = $this->get_credit();
|
|
|
|
$item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = 'SELECT status FROM ' . $item_view_table . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
lp_item_id="' . $this->db_id . '" AND
|
|
lp_view_id="' . $this->view_id . '" AND
|
|
view_count="' . $this->get_attempt_id() . '" ';
|
|
$rs_verified = Database::query($sql);
|
|
$row_verified = Database::fetch_array($rs_verified);
|
|
|
|
$my_case_completed = array(
|
|
'completed',
|
|
'passed',
|
|
'browsed',
|
|
'failed'
|
|
);
|
|
|
|
$save = true;
|
|
|
|
if (isset($row_verified) && isset($row_verified['status'])) {
|
|
if (in_array($row_verified['status'], $my_case_completed)) {
|
|
$save = false;
|
|
}
|
|
}
|
|
|
|
if ((($save === false && $this->type == 'sco') ||
|
|
($this->type == 'sco' && ($credit == 'no-credit' || $mode == 'review' || $mode == 'browse'))) &&
|
|
($this->seriousgame_mode != 1 && $this->type == 'sco')
|
|
) {
|
|
if (self::debug > 1) {
|
|
error_log(
|
|
"This info shouldn't be saved as the credit or lesson mode info prevent it"
|
|
);
|
|
error_log(
|
|
'learnpathItem::write_to_db() - credit(' . $credit . ') or'.
|
|
' lesson_mode(' . $mode . ') prevent recording!',
|
|
0
|
|
);
|
|
}
|
|
} else {
|
|
// Check the row exists.
|
|
$inserted = false;
|
|
|
|
// This a special case for multiple attempts and Chamilo exercises.
|
|
if ($this->type == 'quiz' &&
|
|
$this->get_prevent_reinit() == 0 &&
|
|
$this->get_status() == 'completed'
|
|
) {
|
|
// We force the item to be restarted.
|
|
$this->restart();
|
|
$params = array(
|
|
"c_id" => $course_id,
|
|
"total_time" => $this->get_total_time(),
|
|
"start_time" => $this->current_start_time,
|
|
"score" => $this->get_score(),
|
|
"status" => $this->get_status(false),
|
|
"max_score" => $this->get_max(),
|
|
"lp_item_id" => $this->db_id,
|
|
"lp_view_id" => $this->view_id,
|
|
"view_count" => $this->get_attempt_id() ,
|
|
"suspend_data" => $this->current_data,
|
|
//"max_time_allowed" => ,
|
|
"lesson_location" => $this->lesson_location
|
|
);
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Inserting into item_view forced: ' . print_r($params, 1),
|
|
0
|
|
);
|
|
}
|
|
$this->db_item_view_id = Database::insert($item_view_table, $params);
|
|
|
|
if ($this->db_item_view_id) {
|
|
$sql = "UPDATE $item_view_table SET id = iid
|
|
WHERE iid = " . $this->db_item_view_id;
|
|
Database::query($sql);
|
|
$inserted = true;
|
|
}
|
|
}
|
|
|
|
$item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT * FROM $item_view_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . intval($this->get_attempt_id());
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Querying item_view: ' . $sql,
|
|
0
|
|
);
|
|
}
|
|
$check_res = Database::query($sql);
|
|
// Depending on what we want (really), we'll update or insert a new row
|
|
// now save into DB.
|
|
if (!$inserted && Database::num_rows($check_res) < 1) {
|
|
$params = array(
|
|
"c_id" => $course_id,
|
|
"total_time" => $this->get_total_time(),
|
|
"start_time" => $this->current_start_time,
|
|
"score" => $this->get_score(),
|
|
"status" => $this->get_status(false),
|
|
"max_score" => $this->get_max(),
|
|
"lp_item_id" => $this->db_id,
|
|
"lp_view_id" => $this->view_id,
|
|
"view_count" => $this->get_attempt_id() ,
|
|
"suspend_data" => $this->current_data,
|
|
//"max_time_allowed" => ,$this->get_max_time_allowed()
|
|
"lesson_location" => $this->lesson_location
|
|
);
|
|
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Inserting into item_view forced: ' . print_r($params, 1),
|
|
0
|
|
);
|
|
}
|
|
|
|
$this->db_item_view_id = Database::insert($item_view_table, $params);
|
|
|
|
if ($this->db_item_view_id) {
|
|
$sql = "UPDATE $item_view_table SET id = iid
|
|
WHERE iid = " . $this->db_item_view_id;
|
|
Database::query($sql);
|
|
}
|
|
} else {
|
|
if ($this->type == 'hotpotatoes') {
|
|
$params = array(
|
|
'total_time' => $this->get_total_time(),
|
|
'start_time' => $this->get_current_start_time(),
|
|
'score' => $this->get_score(),
|
|
'status' => $this->get_status(false),
|
|
'max_score' => $this->get_max(),
|
|
'suspend_data' => $this->current_data,
|
|
'lesson_location' => $this->lesson_location
|
|
);
|
|
$where = array(
|
|
'c_id = ? AND lp_item_id = ? AND lp_view_id = ? AND view_count = ?' =>
|
|
array($course_id, $this->db_id, $this->view_id, $this->get_attempt_id())
|
|
);
|
|
Database::update($item_view_table, $params, $where);
|
|
} else {
|
|
// For all other content types...
|
|
if ($this->type == 'quiz') {
|
|
$my_status = ' ';
|
|
$total_time = ' ';
|
|
if (!empty($_REQUEST['exeId'])) {
|
|
$TBL_TRACK_EXERCICES = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
|
|
|
|
$safe_exe_id = intval($_REQUEST['exeId']);
|
|
$sql = "SELECT start_date,exe_date
|
|
FROM $TBL_TRACK_EXERCICES
|
|
WHERE exe_id = $safe_exe_id";
|
|
$res = Database::query($sql);
|
|
$row_dates = Database::fetch_array($res);
|
|
|
|
$time_start_date = convert_sql_date(
|
|
$row_dates['start_date']
|
|
);
|
|
$time_exe_date = convert_sql_date(
|
|
$row_dates['exe_date']
|
|
);
|
|
$mytime = ((int)$time_exe_date - (int)$time_start_date);
|
|
$total_time = " total_time = " . $mytime . ", ";
|
|
}
|
|
} else {
|
|
$my_type_lp = learnpath::get_type_static($this->lp_id);
|
|
// This is a array containing values finished
|
|
$case_completed = array(
|
|
'completed',
|
|
'passed',
|
|
'browsed',
|
|
'failed'
|
|
);
|
|
|
|
// Is not multiple attempts
|
|
if ($this->seriousgame_mode == 1 && $this->type == 'sco') {
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} elseif ($this->get_prevent_reinit() == 1) {
|
|
// Process of status verified into data base.
|
|
$sql = 'SELECT status FROM ' . $item_view_table . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
lp_item_id="' . $this->db_id . '" AND
|
|
lp_view_id="' . $this->view_id . '" AND
|
|
view_count="' . $this->get_attempt_id() . '"
|
|
';
|
|
$rs_verified = Database::query($sql);
|
|
$row_verified = Database::fetch_array($rs_verified);
|
|
|
|
// Get type lp: 1=lp dokeos and 2=scorm.
|
|
// If not is completed or passed or browsed and learning path is scorm.
|
|
if (!in_array($this->get_status(false), $case_completed) &&
|
|
$my_type_lp == 2
|
|
) {
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} else {
|
|
// Verified into database.
|
|
if (!in_array($row_verified['status'], $case_completed) &&
|
|
$my_type_lp == 2
|
|
) {
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} elseif (in_array($row_verified['status'], $case_completed ) &&
|
|
$my_type_lp == 2 && $this->type != 'sco'
|
|
) {
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} else {
|
|
// Is lp chamilo
|
|
if ($my_type_lp == 1 && $this->type != 'chapter') {
|
|
$total_time = " total_time = total_time + " . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Multiple attempts are allowed.
|
|
if (in_array(
|
|
$this->get_status(false),
|
|
$case_completed
|
|
) && $my_type_lp == 2
|
|
) {
|
|
// Reset zero new attempt ?
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} elseif (!in_array($this->get_status(false), $case_completed) &&
|
|
$my_type_lp == 2
|
|
) {
|
|
$total_time = " total_time = " . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
} else {
|
|
// It is chamilo LP.
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
$my_status = " status = '" . $this->get_status(false) . "' ,";
|
|
}
|
|
|
|
// This code line fixes the problem of wrong status.
|
|
if ($my_type_lp == 2) {
|
|
// Verify current status in multiples attempts.
|
|
$sql = 'SELECT status FROM ' . $item_view_table . '
|
|
WHERE
|
|
c_id = ' . $course_id . ' AND
|
|
lp_item_id="' . $this->db_id . '" AND
|
|
lp_view_id="' . $this->view_id . '" AND
|
|
view_count="' . $this->get_attempt_id() . '" ';
|
|
$rs_status = Database::query($sql);
|
|
$current_status = Database::result(
|
|
$rs_status,
|
|
0,
|
|
'status'
|
|
);
|
|
if (in_array($current_status, $case_completed)) {
|
|
$my_status = '';
|
|
$total_time = '';
|
|
} else {
|
|
$total_time = " total_time = total_time +" . $this->get_total_time() . ", ";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($this->type == 'sco') {
|
|
//IF scorm scorm_update_time has already updated total_time in db
|
|
//" . //start_time = ".$this->get_current_start_time().", " . //scorm_init_time does it
|
|
////" max_time_allowed = '".$this->get_max_time_allowed()."'," .
|
|
$sql = "UPDATE $item_view_table SET
|
|
score = " . $this->get_score() . ",
|
|
$my_status
|
|
max_score = '" . $this->get_max() . "',
|
|
suspend_data = '" . Database::escape_string($this->current_data) . "',
|
|
lesson_location = '" . $this->lesson_location . "'
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . $this->get_attempt_id();
|
|
|
|
} else {
|
|
//" max_time_allowed = '".$this->get_max_time_allowed()."'," .
|
|
$sql = "UPDATE $item_view_table SET
|
|
$total_time
|
|
start_time = " . $this->get_current_start_time() . ",
|
|
score = " . $this->get_score() . ",
|
|
$my_status
|
|
max_score = '" . $this->get_max() . "',
|
|
suspend_data = '" . Database::escape_string($this->current_data) . "',
|
|
lesson_location = '" . $this->lesson_location . "'
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . $this->get_attempt_id();
|
|
}
|
|
$this->current_start_time = time();
|
|
}
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Updating item_view: ' . $sql,
|
|
0
|
|
);
|
|
}
|
|
Database::query($sql);
|
|
}
|
|
|
|
if (is_array($this->interactions) && count($this->interactions) > 0) {
|
|
// Save interactions.
|
|
$tbl = Database::get_course_table(TABLE_LP_ITEM_VIEW);
|
|
$sql = "SELECT id FROM $tbl
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_item_id = " . $this->db_id . " AND
|
|
lp_view_id = " . $this->view_id . " AND
|
|
view_count = " . $this->get_attempt_id();
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res) > 0) {
|
|
$row = Database::fetch_array($res);
|
|
$lp_iv_id = $row[0];
|
|
if (self::debug > 2) {
|
|
error_log(
|
|
'learnpathItem::write_to_db() - Got item_view_id ' .
|
|
$lp_iv_id . ', now checking interactions ',
|
|
0
|
|
);
|
|
}
|
|
foreach ($this->interactions as $index => $interaction) {
|
|
$correct_resp = '';
|
|
if (is_array(
|
|
$interaction[4]
|
|
) && !empty($interaction[4][0])
|
|
) {
|
|
foreach ($interaction[4] as $resp) {
|
|
$correct_resp .= $resp . ',';
|
|
}
|
|
$correct_resp = substr(
|
|
$correct_resp,
|
|
0,
|
|
strlen($correct_resp) - 1
|
|
);
|
|
}
|
|
$iva_table = Database::get_course_table(
|
|
TABLE_LP_IV_INTERACTION
|
|
);
|
|
|
|
//also check for the interaction ID as it must be unique for this SCO view
|
|
$iva_sql = "SELECT id FROM $iva_table
|
|
WHERE
|
|
c_id = $course_id AND
|
|
lp_iv_id = $lp_iv_id AND
|
|
(
|
|
order_id = $index OR
|
|
interaction_id = '" . Database::escape_string($interaction[0]) . "'
|
|
)
|
|
";
|
|
$iva_res = Database::query($iva_sql);
|
|
// id(0), type(1), time(2), weighting(3), correct_responses(4), student_response(5), result(6), latency(7)
|
|
if (Database::num_rows($iva_res) > 0) {
|
|
// Update (or don't).
|
|
$iva_row = Database::fetch_array($iva_res);
|
|
$iva_id = $iva_row[0];
|
|
// Insert new one.
|
|
$params = array(
|
|
'interaction_id' => $interaction[0],
|
|
'interaction_type' => $interaction[1],
|
|
'weighting' => $interaction[3],
|
|
'completion_time' => $interaction[2],
|
|
'correct_responses' => $correct_resp,
|
|
'student_response' => $interaction[5],
|
|
'result' => $interaction[6],
|
|
'latency' => $interaction[7]
|
|
);
|
|
Database::update(
|
|
$iva_table,
|
|
$params,
|
|
array(
|
|
'c_id = ? AND id = ?' => array(
|
|
$course_id,
|
|
$iva_id
|
|
)
|
|
)
|
|
);
|
|
|
|
} else {
|
|
// Insert new one.
|
|
$params = array(
|
|
'c_id' => $course_id,
|
|
'order_id' => $index,
|
|
'lp_iv_id' => $lp_iv_id,
|
|
'interaction_id' => $interaction[0],
|
|
'interaction_type' => $interaction[1],
|
|
'weighting' => $interaction[3],
|
|
'completion_time' => $interaction[2],
|
|
'correct_responses' => $correct_resp,
|
|
'student_response' => $interaction[5],
|
|
'result' => $interaction[6],
|
|
'latency' => $interaction[7]
|
|
);
|
|
|
|
$insertId = Database::insert($iva_table, $params);
|
|
if ($insertId) {
|
|
$sql = "UPDATE $iva_table SET id = iid
|
|
WHERE iid = $insertId";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (self::debug > 2) {
|
|
error_log('End of learnpathItem::write_to_db()', 0);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Adds an audio file attached to the current item (store on disk and in db)
|
|
* @return bool|null|string
|
|
*/
|
|
public function add_audio()
|
|
{
|
|
$course_info = api_get_course_info();
|
|
$filepath = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document/';
|
|
|
|
if (!is_dir($filepath . 'audio')) {
|
|
mkdir(
|
|
$filepath . 'audio',
|
|
api_get_permissions_for_new_directories()
|
|
);
|
|
$audio_id = add_document(
|
|
$course_info,
|
|
'/audio',
|
|
'folder',
|
|
0,
|
|
'audio'
|
|
);
|
|
api_item_property_update(
|
|
$course_info,
|
|
TOOL_DOCUMENT,
|
|
$audio_id,
|
|
'FolderCreated',
|
|
api_get_user_id(),
|
|
null,
|
|
null,
|
|
null,
|
|
null,
|
|
api_get_session_id()
|
|
);
|
|
api_item_property_update(
|
|
$course_info,
|
|
TOOL_DOCUMENT,
|
|
$audio_id,
|
|
'invisible',
|
|
api_get_user_id(),
|
|
null,
|
|
null,
|
|
null,
|
|
null,
|
|
api_get_session_id()
|
|
);
|
|
}
|
|
|
|
$key = 'file';
|
|
|
|
if (!isset($_FILES[$key]['name']) || !isset($_FILES[$key]['tmp_name'])) {
|
|
return false;
|
|
}
|
|
$result = DocumentManager::upload_document(
|
|
$_FILES,
|
|
'/audio',
|
|
null,
|
|
null,
|
|
0,
|
|
'rename',
|
|
false,
|
|
false
|
|
);
|
|
$file_path = null;
|
|
|
|
if ($result) {
|
|
$file_path = basename($result['path']);
|
|
|
|
// Store the mp3 file in the lp_item table.
|
|
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
|
|
$sql = "UPDATE $tbl_lp_item SET
|
|
audio = '" . Database::escape_string($file_path) . "'
|
|
WHERE
|
|
c_id = {$course_info['real_id']} AND
|
|
id = '" . intval($this->db_id) . "'";
|
|
Database::query($sql);
|
|
}
|
|
|
|
return $file_path;
|
|
}
|
|
|
|
/**
|
|
* Adds an audio file to the current item, using a file already in documents
|
|
* @param int $doc_id
|
|
* @return string
|
|
*/
|
|
public function add_audio_from_documents($doc_id)
|
|
{
|
|
$course_info = api_get_course_info();
|
|
$document_data = DocumentManager::get_document_data_by_id(
|
|
$doc_id,
|
|
$course_info['code']
|
|
);
|
|
|
|
if (!empty($document_data)) {
|
|
$file_path = basename($document_data['path']);
|
|
// Store the mp3 file in the lp_item table.
|
|
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
|
|
$sql = "UPDATE $tbl_lp_item SET
|
|
audio = '" . Database::escape_string($file_path) . "'
|
|
WHERE
|
|
c_id = {$course_info['real_id']} AND
|
|
id = " . intval($this->db_id);
|
|
Database::query($sql);
|
|
}
|
|
return $file_path;
|
|
}
|
|
|
|
/**
|
|
* Removes the relation between the current item and an audio file. The file
|
|
* is only removed from the lp_item table, but remains in the document table
|
|
* and directory
|
|
* @return bool
|
|
*/
|
|
public function remove_audio()
|
|
{
|
|
$tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
|
|
$course_id = api_get_course_int_id();
|
|
if (empty($this->db_id)) {
|
|
return false;
|
|
}
|
|
$sql = "UPDATE $tbl_lp_item SET
|
|
audio = ''
|
|
WHERE c_id = $course_id AND id IN (" . $this->db_id . ")";
|
|
Database::query($sql);
|
|
}
|
|
|
|
/**
|
|
* Transform the SCORM status to a string that can be translated by Chamilo
|
|
* in different user languages
|
|
* @param $status
|
|
* @param bool $decorate
|
|
* @param string $type classic|simple
|
|
* @return array|string
|
|
*/
|
|
static function humanize_status($status, $decorate = true, $type = 'classic')
|
|
{
|
|
$statusList = array(
|
|
'completed' => 'ScormCompstatus',
|
|
'incomplete' => 'ScormIncomplete',
|
|
'failed' => 'ScormFailed',
|
|
'passed' => 'ScormPassed',
|
|
'browsed' => 'ScormBrowsed',
|
|
'not attempted' => 'ScormNotAttempted'
|
|
);
|
|
|
|
$myLessonStatus = get_lang($statusList[$status]);
|
|
|
|
switch ($status) {
|
|
case 'completed':
|
|
case 'browsed':
|
|
$classStatus = 'info';
|
|
break;
|
|
case 'incomplete':
|
|
$classStatus = 'warning';
|
|
break;
|
|
case 'passed':
|
|
$classStatus = 'success';
|
|
break;
|
|
case 'failed':
|
|
$classStatus = 'important';
|
|
break;
|
|
default:
|
|
$classStatus = 'default';
|
|
break;
|
|
}
|
|
|
|
if ($type == 'simple') {
|
|
if (in_array($status, array('failed', 'passed', 'browsed'))) {
|
|
$myLessonStatus = get_lang('ScormIncomplete');;
|
|
$classStatus = 'warning';
|
|
}
|
|
}
|
|
|
|
if ($decorate) {
|
|
return Display::label($myLessonStatus, $classStatus);
|
|
} else {
|
|
return $myLessonStatus;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return float
|
|
*/
|
|
public function getPrerequisiteMaxScore()
|
|
{
|
|
return $this->prerequisiteMaxScore;
|
|
}
|
|
|
|
/**
|
|
* @param float $prerequisiteMaxScore
|
|
*/
|
|
public function setPrerequisiteMaxScore($prerequisiteMaxScore)
|
|
{
|
|
$this->prerequisiteMaxScore = $prerequisiteMaxScore;
|
|
}
|
|
|
|
/**
|
|
* @return float
|
|
*/
|
|
public function getPrerequisiteMinScore()
|
|
{
|
|
return $this->prerequisiteMinScore;
|
|
}
|
|
|
|
/**
|
|
* @param float $prerequisiteMinScore
|
|
*/
|
|
public function setPrerequisiteMinScore($prerequisiteMinScore)
|
|
{
|
|
$this->prerequisiteMinScore = $prerequisiteMinScore;
|
|
}
|
|
}
|
|
|