Chamilo is a learning management system focused on ease of use and accessibility
 
 
 
 
 
 
chamilo-lms/main/gradebook/lib/be/category.class.php

2316 lines
74 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Class Category
* Defines a gradebook Category object
* @package chamilo.gradebook
*/
class Category implements GradebookItem
{
private $id;
private $name;
private $description;
private $user_id;
private $course_code;
private $parent;
private $weight;
private $visible;
private $certificate_min_score;
private $session_id;
private $skills = array();
private $grade_model_id;
private $generateCertificates;
private $isRequirement;
public $studentList;
/**
* Consctructor
*/
public function __construct()
{
$this->id = 0;
$this->name = null;
$this->description = null;
$this->user_id = 0;
$this->course_code = null;
$this->parent = 0;
$this->weight = 0;
$this->visible = false;
$this->certificate_min_score = 0;
$this->session_id = 0;
$this->grade_model_id = 0;
$this->generateCertificates = false;
$this->isRequirement = false;
}
/**
* @return int
*/
public function get_id()
{
return $this->id;
}
/**
* @return string
*/
public function get_name()
{
return $this->name;
}
/**
* @return string
*/
public function get_description()
{
return $this->description;
}
/**
* @return int
*/
public function get_user_id()
{
return $this->user_id;
}
/**
* @return float
*/
public function get_certificate_min_score()
{
if (!empty($this->certificate_min_score)) {
return $this->certificate_min_score;
} else {
return null;
}
}
/**
* @return string
*/
public function get_course_code()
{
return $this->course_code;
}
/**
* @return mixed
*/
public function get_parent_id()
{
return $this->parent;
}
/**
* @return mixed
*/
public function get_weight()
{
return $this->weight;
}
/**
* @return bool
*/
public function is_locked()
{
return isset($this->locked) && $this->locked == 1 ? true : false;
}
/**
* @return mixed
*/
public function is_visible()
{
return $this->visible;
}
/**
* Get $isRequirement
* @return int
*/
public function getIsRequirement()
{
return $this->isRequirement;
}
/**
* @param int $id
*/
public function set_id($id)
{
$this->id = $id;
}
/**
* @param string $name
*/
public function set_name($name)
{
$this->name = $name;
}
/**
* @param string $description
*/
public function set_description($description)
{
$this->description = $description;
}
/**
* @param int $user_id
*/
public function set_user_id($user_id)
{
$this->user_id = $user_id;
}
/**
* @param string $course_code
*/
public function set_course_code($course_code)
{
$this->course_code = $course_code;
}
/**
* @param float $min_score
*/
public function set_certificate_min_score($min_score = null)
{
$this->certificate_min_score = $min_score;
}
/**
* @param int $parent
*/
public function set_parent_id($parent)
{
$this->parent = intval($parent);
}
/**
* Filters to int and sets the session ID
* @param int The session ID from the Dokeos course session
*/
public function set_session_id($session_id = 0)
{
$this->session_id = (int)$session_id;
}
/**
* @param $weight
*/
public function set_weight($weight)
{
$this->weight = $weight;
}
/**
* @param $visible
*/
public function set_visible($visible)
{
$this->visible = $visible;
}
/**
* @param int $id
*/
public function set_grade_model_id($id)
{
$this->grade_model_id = $id;
}
/**
* @param $locked
*/
public function set_locked($locked)
{
$this->locked = $locked;
}
/**
* Set $isRequirement
* @param int $isRequirement
*/
public function setIsRequirement($isRequirement)
{
$this->isRequirement = $isRequirement;
}
/**
* @return null
*/
public function get_grade_model_id()
{
if ($this->grade_model_id < 0) {
return null;
}
return $this->grade_model_id;
}
/**
* @return string
*/
public function get_type()
{
return 'category';
}
/**
* @param bool $from_db
* @return array|resource
*/
public function get_skills($from_db = true)
{
if ($from_db) {
$cat_id = $this->get_id();
$gradebook = new Gradebook();
$skills = $gradebook->get_skills_by_gradebook($cat_id);
} else {
$skills = $this->skills;
}
return $skills;
}
/**
* @return array
*/
public function get_skills_for_select()
{
$skills = $this->get_skills();
$skill_select = array();
if (!empty($skills)) {
foreach($skills as $skill) {
$skill_select[$skill['id']] = $skill['name'];
}
}
return $skill_select;
}
/**
* Set the generate_certificates value
* @param int $generateCertificates
*/
public function setGenerateCertificates($generateCertificates)
{
$this->generateCertificates = $generateCertificates;
}
/**
* Get the generate_certificates value
* @return int
*/
public function getGenerateCertificates()
{
return $this->generateCertificates;
}
/**
* @param int $id
* @param int $session_id
*
* @return array
*/
public static function load_session_categories($id = null, $session_id = null)
{
if (isset($id) && (int)$id === 0) {
$cats = array();
$cats[] = Category::create_root_category();
return $cats;
}
$courseCode = api_get_course_info_by_id(api_get_course_int_id());
$courseCode = $courseCode['code'];
$session_id = intval($session_id);
if (!empty($session_id)) {
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT id, course_code
FROM '.$tbl_grade_categories. '
WHERE session_id = '.$session_id;
$result_session = Database::query($sql);
if (Database::num_rows($result_session) > 0) {
$categoryList = array();
while ($data_session = Database::fetch_array($result_session)) {
$parent_id = $data_session['id'];
if ($data_session['course_code'] == $courseCode) {
$categories = Category::load($parent_id);
$categoryList = array_merge($categoryList, $categories);
}
}
return $categoryList;
}
}
}
/**
* Retrieve categories and return them as an array of Category objects
* @param int $id category id
* @param int $user_id (category owner)
* @param string $course_code
* @param int $parent_id parent category
* @param bool $visible
* @param int $session_id (in case we are in a session)
* @param bool $order_by Whether to show all "session"
* categories (true) or hide them (false) in case there is no session id
*/
public static function load(
$id = null,
$user_id = null,
$course_code = null,
$parent_id = null,
$visible = null,
$session_id = null,
$order_by = null
) {
//if the category given is explicitly 0 (not null), then create
// a root category object (in memory)
if (isset($id) && (int)$id === 0) {
$cats = array();
$cats[] = Category::create_root_category();
return $cats;
}
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT * FROM '.$tbl_grade_categories;
$paramcount = 0;
if (isset($id)) {
$sql.= ' WHERE id = '.intval($id);
$paramcount ++;
}
if (isset($user_id)) {
$user_id = intval($user_id);
if ($paramcount != 0) {
$sql .= ' AND';
} else {
$sql .= ' WHERE';
}
$sql .= ' user_id = '.intval($user_id);
$paramcount++;
}
if (isset($course_code)) {
if ($paramcount != 0) {
$sql .= ' AND';
} else {
$sql .= ' WHERE';
}
if ($course_code == '0') {
$sql .= ' course_code is null ';
} else {
$sql .= " course_code = '".Database::escape_string($course_code)."'";
}
/*if ($show_session_categories !== true) {
// a query on the course should show all
// the categories inside sessions for this course
// otherwise a special parameter is given to ask explicitely
$sql .= " AND (session_id IS NULL OR session_id = 0) ";
} else {*/
if (empty($session_id)) {
$sql .= ' AND (session_id IS NULL OR session_id = 0) ';
} else {
$sql .= ' AND session_id = '.(int)$session_id.' ';
}
//}
$paramcount ++;
}
if (isset($parent_id)) {
if ($paramcount != 0) {
$sql .= ' AND ';
} else {
$sql .= ' WHERE ';
}
$sql .= ' parent_id = '.intval($parent_id);
$paramcount++;
}
if (isset($visible)) {
if ($paramcount != 0) {
$sql .= ' AND';
} else {
$sql .= ' WHERE';
}
$sql .= ' visible = '.intval($visible);
}
if (!empty($order_by)) {
if (!empty($order_by) && $order_by != '') {
$sql .= ' '.$order_by;
}
}
$result = Database::query($sql);
$categories = array();
if (Database::num_rows($result) > 0) {
$categories = Category::create_category_objects_from_sql_result(
$result
);
}
return $categories;
}
/**
* @return Category
*/
private static function create_root_category()
{
$cat = new Category();
$cat->set_id(0);
$cat->set_name(get_lang('RootCat'));
$cat->set_description(null);
$cat->set_user_id(0);
$cat->set_course_code(null);
$cat->set_parent_id(null);
$cat->set_weight(0);
$cat->set_visible(1);
$cat->setGenerateCertificates(0);
$cat->setIsRequirement(false);
return $cat;
}
/**
* @param $result
*
* @return array
*/
private static function create_category_objects_from_sql_result($result)
{
$categories = array();
while ($data = Database::fetch_array($result)) {
$cat = new Category();
$cat->set_id($data['id']);
$cat->set_name($data['name']);
$cat->set_description($data['description']);
$cat->set_user_id($data['user_id']);
$cat->set_course_code($data['course_code']);
$cat->set_parent_id($data['parent_id']);
$cat->set_weight($data['weight']);
$cat->set_visible($data['visible']);
$cat->set_session_id($data['session_id']);
$cat->set_certificate_min_score($data['certif_min_score']);
$cat->set_grade_model_id($data['grade_model_id']);
$cat->set_locked($data['locked']);
$cat->setGenerateCertificates($data['generate_certificates']);
$cat->setIsRequirement($data['is_requirement']);
$categories[] = $cat;
}
return $categories;
}
/**
* Create a category object from a GradebookCategory entity
* @param Chamilo\CoreBundle\Entity\GradebookCategory $gradebookCategory
* The entity
* @return \Category
*/
public static function createCategoryObjectFromEntity(
Chamilo\CoreBundle\Entity\GradebookCategory $gradebookCategory
)
{
$category = new Category();
$category->set_id($gradebookCategory->getId());
$category->set_name($gradebookCategory->getName());
$category->set_description($gradebookCategory->getDescription());
$category->set_user_id($gradebookCategory->getUserId());
$category->set_course_code($gradebookCategory->getCourseCode());
$category->set_parent_id($gradebookCategory->getParentId());
$category->set_weight($gradebookCategory->getWeight());
$category->set_visible($gradebookCategory->getVisible());
$category->set_session_id($gradebookCategory->getSessionId());
$category->set_certificate_min_score(
$gradebookCategory->getCertifMinScore()
);
$category->set_grade_model_id($gradebookCategory->getGradeModelId());
$category->set_locked($gradebookCategory->getLocked());
$category->setGenerateCertificates(
$gradebookCategory->getGenerateCertificates()
);
$category->setIsRequirement($gradebookCategory->getIsRequirement());
return $category;
}
/**
* Insert this category into the database
*/
public function add()
{
if (isset($this->name) && '-1' == $this->name) {
return false;
}
if (isset($this->name) && isset($this->user_id)) {
$em = Database::getManager();
$category = new \Chamilo\CoreBundle\Entity\GradebookCategory();
$category->setName($this->name);
$category->setDescription($this->description);
$category->setUserId($this->user_id);
$category->setCourseCode($this->course_code);
$category->setParentId($this->parent);
$category->setWeight($this->weight);
$category->setVisible($this->visible);
$category->setCertifMinScore($this->certificate_min_score);
$category->setSessionId($this->session_id);
$category->setGenerateCertificates($this->generateCertificates);
$category->setGradeModelId($this->grade_model_id);
$category->setIsRequirement($this->isRequirement);
$category->setLocked(false);
$em->persist($category);
$em->flush();
$id = $category->getId();
$this->set_id($id);
if (!empty($id)) {
$parent_id = $this->get_parent_id();
$grade_model_id = $this->get_grade_model_id();
if ($parent_id == 0) {
//do something
if (isset($grade_model_id) && !empty($grade_model_id) && $grade_model_id != '-1') {
$obj = new GradeModel();
$components = $obj->get_components($grade_model_id);
$default_weight_setting = api_get_setting('gradebook_default_weight');
$default_weight = 100;
if (isset($default_weight_setting)) {
$default_weight = $default_weight_setting;
}
foreach ($components as $component) {
$gradebook = new Gradebook();
$params = array();
$params['name'] = $component['acronym'];
$params['description'] = $component['title'];
$params['user_id'] = api_get_user_id();
$params['parent_id'] = $id;
$params['weight'] = $component['percentage'] / 100 * $default_weight;
$params['session_id'] = api_get_session_id();
$params['course_code'] = $this->get_course_code();
$gradebook->save($params);
}
}
}
}
$gradebook= new Gradebook();
$gradebook->update_skills_to_gradebook($this->id, $this->get_skills(false));
return $id;
}
}
/**
* Update the properties of this category in the database
* @todo fix me
*/
public function save()
{
$em = Database::getManager();
$gradebookCategory = $em
->getRepository('ChamiloCoreBundle:GradebookCategory')
->find($this->id);
if (empty($gradebookCategory)) {
return false;
}
$gradebookCategory->setName($this->name);
$gradebookCategory->setDescription($this->description);
$gradebookCategory->setUserId($this->user_id);
$gradebookCategory->setCourseCode($this->course_code);
$gradebookCategory->setParentId($this->parent);
$gradebookCategory->setWeight($this->weight);
$gradebookCategory->setVisible($this->visible);
$gradebookCategory->setCertifMinScore($this->certificate_min_score);
$gradebookCategory->setGenerateCertificates(
$this->generateCertificates
);
$gradebookCategory->setGradeModelId($this->grade_model_id);
$gradebookCategory->setIsRequirement($this->isRequirement);
$em->merge($gradebookCategory);
$em->flush();
if (!empty($this->id)) {
$parent_id = $this->get_parent_id();
$grade_model_id = $this->get_grade_model_id();
if ($parent_id == 0) {
if (isset($grade_model_id) && !empty($grade_model_id) && $grade_model_id != '-1') {
$obj = new GradeModel();
$components = $obj->get_components($grade_model_id);
$default_weight_setting = api_get_setting('gradebook_default_weight');
$default_weight = 100;
if (isset($default_weight_setting)) {
$default_weight = $default_weight_setting;
}
$final_weight = $this->get_weight();
if (!empty($final_weight)) {
$default_weight = $this->get_weight();
}
foreach ($components as $component) {
$gradebook = new Gradebook();
$params = array();
$params['name'] = $component['acronym'];
$params['description'] = $component['title'];
$params['user_id'] = api_get_user_id();
$params['parent_id'] = $this->id;
$params['weight'] = $component['percentage']/100*$default_weight;
$params['session_id'] = api_get_session_id();
$params['course_code'] = $this->get_course_code();
$gradebook->save($params);
}
}
}
}
$gradebook= new Gradebook();
$gradebook->update_skills_to_gradebook(
$this->id,
$this->get_skills(false),
true
);
}
/**
* Update link weights see #5168
* @param type $new_weight
*/
public function update_children_weight($new_weight)
{
$links = $this->get_links();
$old_weight = $this->get_weight();
if (!empty($links)) {
foreach ($links as $link_item) {
if (isset($link_item)) {
$new_item_weight = $new_weight * $link_item->get_weight() / $old_weight;
$link_item->set_weight($new_item_weight);
$link_item->save();
}
}
}
}
/**
* Delete this evaluation from the database
*/
public function delete()
{
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'DELETE FROM '.$tbl_grade_categories.' WHERE id = '.intval($this->id);
Database::query($sql);
}
/**
* Not delete this category from the database,when visible=3 is category eliminated
*/
public function update_category_delete($course_id)
{
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'UPDATE '.$tbl_grade_categories.' SET visible=3
WHERE course_code ="'.Database::escape_string($course_id).'"';
Database::query($sql);
}
/**
* Show message resource delete
*/
public function show_message_resource_delete($course_id)
{
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT count(*) AS num from '.$tbl_grade_categories.'
WHERE
course_code = "'.Database::escape_string($course_id).'" AND
visible=3';
$res = Database::query($sql);
$option = Database::fetch_array($res, 'ASSOC');
if ($option['num']>=1) {
return '&nbsp;&nbsp;<span class="resource-deleted">(&nbsp;'.get_lang('ResourceDeleted').'&nbsp;)</span>';
} else {
return false;
}
}
/**
* Shows all information of an category
*/
public function shows_all_information_an_category($selectcat = '')
{
if ($selectcat == '') {
return null;
} else {
$tbl_category = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT name,description,user_id,course_code,parent_id,weight,visible,certif_min_score,session_id, generate_certificates, is_requirement
FROM '.$tbl_category.' c
WHERE c.id='.intval($selectcat);
$result = Database::query($sql);
$row = Database::fetch_array($result, 'ASSOC');
return $row;
}
}
/**
* Check if a category name (with the same parent category) already exists
* @param $name name to check (if not given, the name property of this object will be checked)
* @param $parent parent category
*/
public function does_name_exist($name, $parent)
{
if (!isset ($name)) {
$name = $this->name;
$parent = $this->parent;
}
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT count(id) AS number'
.' FROM '.$tbl_grade_categories
." WHERE name = '".Database::escape_string($name)."'";
if (api_is_allowed_to_edit()) {
$parent = Category::load($parent);
$code = $parent[0]->get_course_code();
$courseInfo = api_get_course_info($code);
$courseId = $courseInfo['real_id'];
if (isset($code) && $code != '0') {
$main_course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$sql .= ' AND user_id IN (
SELECT user_id FROM '.$main_course_user_table.'
WHERE c_id = '.$courseId.' AND status = '.COURSEMANAGER.'
)';
} else {
$sql .= ' AND user_id = '.api_get_user_id();
}
} else {
$sql .= ' AND user_id = '.api_get_user_id();
}
if (!isset ($parent)) {
$sql.= ' AND parent_id is null';
} else {
$sql.= ' AND parent_id = '.intval($parent);
}
$result = Database::query($sql);
$number = Database::fetch_row($result);
return ($number[0] != 0);
}
/**
* Checks if the certificate is available for the given user in this category
* @param integer $user_id User ID
* @return boolean True if conditions match, false if fails
*/
public function is_certificate_available($user_id)
{
$score = $this->calc_score(
$user_id,
null,
$this->course_code,
$this->session_id
);
if (isset($score) && isset($score[0])) {
// Get a percentage score to compare to minimum certificate score
//$certification_score = $score[0] / $score[1] * 100;
// Get real score not a percentage.
$certification_score = $score[0];
if ($certification_score >= $this->certificate_min_score) {
return true;
}
}
return false;
}
/**
* Is this category a course ?
* A category is a course if it has a course code and no parent category.
*/
public function is_course()
{
return (isset($this->course_code) && !empty($this->course_code)
&& (!isset($this->parent) || $this->parent == 0));
}
/**
* Calculate the score of this category
* @param $stud_id student id (default: all students - then the average is returned)
* @return array (score sum, weight sum)
* or null if no scores available
*/
public function calc_score(
$stud_id = null,
$type = null,
$course_code = '',
$session_id = null
) {
// Classic
if (!empty($stud_id) && $type == '') {
if (!empty($course_code)) {
$cats = $this->get_subcategories(
$stud_id,
$course_code,
$session_id
);
$evals = $this->get_evaluations($stud_id, false, $course_code);
$links = $this->get_links($stud_id, false, $course_code);
} else {
$cats = $this->get_subcategories($stud_id);
$evals = $this->get_evaluations($stud_id);
$links = $this->get_links($stud_id);
}
// Calculate score
$count = 0;
$ressum = 0;
$weightsum = 0;
if (!empty($cats)) {
/** @var Category $cat */
foreach ($cats as $cat) {
$cat->setStudentList($this->getStudentList());
$score = $cat->calc_score(
$stud_id,
null,
$course_code,
$session_id
);
$catweight = 0;
if ($cat->get_weight() != 0) {
$catweight = $cat->get_weight();
$weightsum += $catweight;
}
if (isset($score) && !empty($score[1]) && !empty($catweight)) {
$ressum += $score[0]/$score[1] * $catweight;
}
}
}
$students = array();
if (!empty($evals)) {
/** @var Evaluation $eval */
foreach ($evals as $eval) {
$eval->setStudentList($this->getStudentList());
$evalres = $eval->calc_score($stud_id, null);
if (isset($evalres) && $eval->get_weight() != 0) {
$evalweight = $eval->get_weight();
$weightsum += $evalweight;
$count++;
if (!empty($evalres[1])) {
$ressum += $evalres[0] / $evalres[1] * $evalweight;
}
} else {
if ($eval->get_weight() != 0) {
$evalweight = $eval->get_weight();
$weightsum += $evalweight;
}
}
}
}
if (!empty($links)) {
/** @var EvalLink|ExerciseLink $link */
foreach ($links as $link) {
$link->setStudentList($this->getStudentList());
$linkres = $link->calc_score($stud_id, null);
if (!empty($linkres) && $link->get_weight() != 0) {
$students[$stud_id] = $linkres[0];
$linkweight = $link->get_weight();
$link_res_denom = $linkres[1] == 0 ? 1 : $linkres[1];
$count++;
$weightsum += $linkweight;
$ressum += $linkres[0] / $link_res_denom * $linkweight;
} else {
// Adding if result does not exists
if ($link->get_weight() != 0) {
$linkweight = $link->get_weight();
$weightsum += $linkweight;
}
}
}
}
} else {
if (!empty($course_code)) {
$cats = $this->get_subcategories(
null,
$course_code,
$session_id
);
$evals = $this->get_evaluations(null, false, $course_code);
$links = $this->get_links(null, false, $course_code);
} else {
$cats = $this->get_subcategories(null);
$evals = $this->get_evaluations(null);
$links = $this->get_links(null);
}
// Calculate score
$count = 0;
$ressum = 0;
$weightsum = 0;
$bestResult = 0;
if (!empty($cats)) {
/** @var Category $cat */
foreach ($cats as $cat) {
$cat->setStudentList($this->getStudentList());
$score = $cat->calc_score(
null,
$type,
$course_code,
$session_id
);
$catweight = 0;
if ($cat->get_weight() != 0) {
$catweight = $cat->get_weight();
$weightsum += $catweight;
}
if (isset($score) && !empty($score[1]) && !empty($catweight)) {
$ressum += $score[0]/$score[1] * $catweight;
if ($ressum > $bestResult) {
$bestResult = $ressum;
}
}
}
}
if (!empty($evals)) {
/** @var Evaluation $eval */
foreach ($evals as $eval) {
$evalres = $eval->calc_score(null, $type);
$eval->setStudentList($this->getStudentList());
if (isset($evalres) && $eval->get_weight() != 0) {
$evalweight = $eval->get_weight();
$weightsum += $evalweight;
$count++;
if (!empty($evalres[1])) {
$ressum += $evalres[0] / $evalres[1] * $evalweight;
}
if ($ressum > $bestResult) {
$bestResult = $ressum;
}
} else {
if ($eval->get_weight() != 0) {
$evalweight = $eval->get_weight();
$weightsum += $evalweight;
}
}
}
}
if (!empty($links)) {
/** @var EvalLink|ExerciseLink $link */
foreach ($links as $link) {
$link->setStudentList($this->getStudentList());
$linkres = $link->calc_score($stud_id, $type);
if (!empty($linkres) && $link->get_weight() != 0) {
$students[$stud_id] = $linkres[0];
$linkweight = $link->get_weight();
$link_res_denom = $linkres[1] == 0 ? 1 : $linkres[1];
$count++;
$weightsum += $linkweight;
$ressum += $linkres[0] / $link_res_denom * $linkweight;
if ($ressum > $bestResult) {
$bestResult = $ressum;
}
} else {
// Adding if result does not exists
if ($link->get_weight() != 0) {
$linkweight = $link->get_weight();
$weightsum += $linkweight;
}
}
}
}
}
switch ($type) {
case 'best':
if (empty($bestResult)) {
return null;
}
return array($bestResult, $weightsum);
break;
case 'average':
if (empty($ressum)) {
return null;
}
return array($ressum, $weightsum);
break;
case 'ranking':
// category ranking is calculated in gradebook_data_generator.class.php
// function get_data
return null;
return AbstractLink::getCurrentUserRanking($stud_id, array());
break;
default:
return array($ressum, $weightsum);
break;
}
}
/**
* Delete this category and every subcategory, evaluation and result inside
*/
public function delete_all()
{
$cats = Category::load(null, null, $this->course_code, $this->id, null);
$evals = Evaluation::load(null, null, $this->course_code, $this->id, null);
$links = LinkFactory::load(null, null, null, null, $this->course_code, $this->id, null);
if (!empty($cats)) {
foreach ($cats as $cat) {
$cat->delete_all();
$cat->delete();
}
}
if (!empty($evals)) {
foreach ($evals as $eval) {
$eval->delete_with_results();
}
}
if (!empty($links)) {
foreach ($links as $link) {
$link->delete();
}
}
$this->delete();
}
/**
* Return array of Category objects where a student is subscribed to.
* @param int student id
* @param string Course code
* @param int Session id
*/
public function get_root_categories_for_student($stud_id, $course_code = null, $session_id = null)
{
$main_course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$courseTable = Database :: get_main_table(TABLE_MAIN_COURSE);
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = "SELECT * FROM $tbl_grade_categories WHERE parent_id = 0";
if (!api_is_allowed_to_edit()) {
$sql .= ' AND visible = 1';
//proceed with checks on optional parameters course & session
if (!empty($course_code)) {
// TODO: considering it highly improbable that a user would get here
// if he doesn't have the rights to view this course and this
// session, we don't check his registration to these, but this
// could be an improvement
if (!empty($session_id)) {
$sql .= " AND course_code = '".Database::escape_string($course_code)."' AND session_id = ".(int)$session_id;
} else {
$sql .= " AND course_code = '".Database::escape_string($course_code)."' AND session_id is null OR session_id=0";
}
} else {
//no optional parameter, proceed as usual
$sql .= ' AND course_code in
(
SELECT c.code
FROM '.$main_course_user_table.' cu INNER JOIN '.$courseTable.' c
ON (cu.c_id = c.id)
WHERE cu.user_id = '.intval($stud_id).'
AND cu.status = '.STUDENT.'
)';
}
} elseif (api_is_allowed_to_edit() && !api_is_platform_admin()) {
//proceed with checks on optional parameters course & session
if (!empty($course_code)) {
// TODO: considering it highly improbable that a user would get here
// if he doesn't have the rights to view this course and this
// session, we don't check his registration to these, but this
// could be an improvement
$sql .= " AND course_code = '".Database::escape_string($course_code)."'";
if (!empty($session_id)) {
$sql .= " AND session_id = ".(int)$session_id;
} else {
$sql .="AND session_id IS NULL OR session_id=0";
}
} else {
$sql .= ' AND course_code IN
(
SELECT c.code
FROM '.$main_course_user_table.' cu INNER JOIN '.$courseTable.' c
ON (cu.c_id = c.id)
WHERE
cu.user_id = '.api_get_user_id().' AND
cu.status = '.COURSEMANAGER.'
)';
}
}elseif (api_is_platform_admin()) {
if (isset($session_id) && $session_id!=0) {
$sql.=' AND session_id='.intval($session_id);
} else {
$sql.=' AND coalesce(session_id,0)=0';
}
}
$result = Database::query($sql);
$cats = Category::create_category_objects_from_sql_result($result);
// course independent categories
if (empty($course_code)) {
$cats = Category::get_independent_categories_with_result_for_student (0, $stud_id, $cats);
}
return $cats;
}
/**
* Return array of Category objects where a teacher is admin for.
* @param int user id (to return everything, use 'null' here)
* @param string course code (optional)
* @param int session id (optional)
*/
public function get_root_categories_for_teacher($user_id, $course_code = null, $session_id = null)
{
if ($user_id == null) {
return Category::load(null,null,$course_code,0,null,$session_id);
}
$courseTable = Database :: get_main_table(TABLE_MAIN_COURSE);
$main_course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT * FROM '.$tbl_grade_categories.'
WHERE parent_id = 0';
if (!empty($course_code)) {
$sql .= " AND course_code = '".Database::escape_string($course_code)."' ";
if (!empty($session_id)) {
$sql .= " AND session_id = ".(int)$session_id;
}
} else {
$sql .= ' AND course_code in
(
SELECT c.code
FROM '.$main_course_user_table.' cu
INNER JOIN '.$courseTable.' c
ON (cu.c_id = c.id)
WHERE user_id = '.intval($user_id).'
)';
}
$result = Database::query($sql);
$cats = Category::create_category_objects_from_sql_result($result);
// course independent categories
if (isset($course_code)) {
$indcats = Category::load(null,$user_id,$course_code,0,null,$session_id);
$cats = array_merge($cats, $indcats);
}
return $cats;
}
/**
* Can this category be moved to somewhere else ?
* The root and courses cannot be moved.
*/
public function is_movable()
{
return (!(!isset ($this->id) || $this->id == 0 || $this->is_course()));
}
/**
* Generate an array of possible categories where this category can be moved to.
* Notice: its own parent will be included in the list: it's up to the frontend
* to disable this element.
* @return array 2-dimensional array - every element contains 3 subelements (id, name, level)
*/
public function get_target_categories()
{
// the root or a course -> not movable
if (!$this->is_movable()) {
return null;
} else {
// otherwise:
// - course independent category
// -> movable to root or other independent categories
// - category inside a course
// -> movable to root, independent categories or categories inside the course
$user = (api_is_platform_admin() ? null : api_get_user_id());
$targets = array();
$level = 0;
$root = array(0, get_lang('RootCat'), $level);
$targets[] = $root;
if (isset($this->course_code) && !empty($this->course_code)) {
$crscats = Category::load(null,null,$this->course_code,0);
foreach ($crscats as $cat) {
if ($this->can_be_moved_to_cat($cat)) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = $this->add_target_subcategories($targets, $level+1, $cat->get_id());
}
}
}
$indcats = Category::load(null,$user,0,0);
foreach ($indcats as $cat) {
if ($this->can_be_moved_to_cat($cat)) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = $this->add_target_subcategories($targets, $level+1, $cat->get_id());
}
}
return $targets;
}
}
/**
* Internal function used by get_target_categories()
*/
private function add_target_subcategories($targets, $level, $catid)
{
$subcats = Category::load(null,null,null,$catid);
foreach ($subcats as $cat) {
if ($this->can_be_moved_to_cat($cat)) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = $this->add_target_subcategories($targets, $level+1, $cat->get_id());
}
}
return $targets;
}
/**
* Internal function used by get_target_categories() and add_target_subcategories()
* Can this category be moved to the given category ?
* Impossible when origin and target are the same... children won't be processed
* either. (a category can't be moved to one of its own children)
*/
private function can_be_moved_to_cat ($cat)
{
return $cat->get_id() != $this->get_id();
}
/**
* Move this category to the given category.
* If this category moves from inside a course to outside,
* its course code must be changed, as well as the course code
* of all underlying categories and evaluations. All links will
* be deleted as well !
*/
public function move_to_cat($cat)
{
$this->set_parent_id($cat->get_id());
if ($this->get_course_code() != $cat->get_course_code()) {
$this->set_course_code($cat->get_course_code());
$this->apply_course_code_to_children();
}
$this->save();
}
/**
* Internal function used by move_to_cat()
*/
private function apply_course_code_to_children()
{
$cats = Category::load(null, null, null, $this->id, null);
$evals = Evaluation::load(null, null, null, $this->id, null);
$links = LinkFactory::load(null,null,null,null,null,$this->id,null);
foreach ($cats as $cat) {
$cat->set_course_code($this->get_course_code());
$cat->save();
$cat->apply_course_code_to_children();
}
foreach ($evals as $eval) {
$eval->set_course_code($this->get_course_code());
$eval->save();
}
foreach ($links as $link) {
$link->delete();
}
}
/**
* Generate an array of all categories the user can navigate to
*/
public function get_tree()
{
$targets = array();
$level = 0;
$root = array(0, get_lang('RootCat'), $level);
$targets[] = $root;
// course or platform admin
if (api_is_allowed_to_edit()) {
$user = (api_is_platform_admin() ? null : api_get_user_id());
$cats = Category::get_root_categories_for_teacher($user);
foreach ($cats as $cat) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = Category::add_subtree($targets, $level+1, $cat->get_id(),null);
}
} else {
// student
$cats = Category::get_root_categories_for_student(api_get_user_id());
foreach ($cats as $cat) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = Category::add_subtree($targets, $level+1, $cat->get_id(), 1);
}
}
return $targets;
}
/**
* Internal function used by get_tree()
*/
private function add_subtree ($targets, $level, $catid, $visible)
{
$subcats = Category::load(null,null,null,$catid,$visible);
if (!empty($subcats)) {
foreach ($subcats as $cat) {
$targets[] = array ($cat->get_id(), $cat->get_name(), $level+1);
$targets = Category::add_subtree($targets, $level+1, $cat->get_id(),$visible);
}
}
return $targets;
}
/**
* Generate an array of courses that a teacher hasn't created a category for.
* @return array 2-dimensional array - every element contains 2 subelements (code, title)
*/
public function get_not_created_course_categories ($user_id)
{
$tbl_main_courses = Database :: get_main_table(TABLE_MAIN_COURSE);
$tbl_main_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT DISTINCT(code), title
FROM '.$tbl_main_courses.' cc, '.$tbl_main_course_user.' cu'
.' WHERE cc.id = cu.c_id '
.' AND cu.status = '.COURSEMANAGER;
if (!api_is_platform_admin()) {
$sql .= ' AND cu.user_id = '.$user_id;
}
$sql .= ' AND cc.code NOT IN
(
SELECT course_code FROM '.$tbl_grade_categories.'
WHERE
parent_id = 0 AND
course_code IS NOT NULL
)';
$result = Database::query($sql);
$cats=array();
while ($data=Database::fetch_array($result)) {
$cats[] = array ($data['code'], $data['title']);
}
return $cats;
}
/**
* Generate an array of all courses that a teacher is admin of.
* @return array 2-dimensional array - every element contains 2 subelements (code, title)
*/
public function get_all_courses ($user_id)
{
$tbl_main_courses = Database :: get_main_table(TABLE_MAIN_COURSE);
$tbl_main_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$sql = 'SELECT DISTINCT(code), title
FROM '.$tbl_main_courses.' cc, '.$tbl_main_course_user.' cu
WHERE cc.id = cu.c_id AND cu.status = '.COURSEMANAGER;
if (!api_is_platform_admin()) {
$sql .= ' AND cu.user_id = '.intval($user_id);
}
$result = Database::query($sql);
$cats = array();
while ($data = Database::fetch_array($result)) {
$cats[] = array ($data['code'], $data['title']);
}
return $cats;
}
/**
* Apply the same visibility to every subcategory, evaluation and link
*/
public function apply_visibility_to_children()
{
$cats = Category::load(null, null, null, $this->id, null);
$evals = Evaluation::load(null, null, null, $this->id, null);
$links = LinkFactory::load(null,null,null,null,null,$this->id,null);
if (!empty($cats)) {
foreach ($cats as $cat) {
$cat->set_visible($this->is_visible());
$cat->save();
$cat->apply_visibility_to_children();
}
}
if (!empty($evals)) {
foreach ($evals as $eval) {
$eval->set_visible($this->is_visible());
$eval->save();
}
}
if (!empty($links)) {
foreach ($links as $link) {
$link->set_visible($this->is_visible());
$link->save();
}
}
}
/**
* Check if a category contains evaluations with a result for a given student
*/
public function has_evaluations_with_results_for_student($stud_id)
{
$evals = Evaluation::get_evaluations_with_result_for_student($this->id, $stud_id);
if (count($evals) != 0) {
return true;
} else {
$cats = Category::load(
null,
null,
null,
$this->id,
api_is_allowed_to_edit() ? null : 1
);
foreach ($cats as $cat) {
if ($cat->has_evaluations_with_results_for_student($stud_id)) {
return true;
}
}
return false;
}
}
/**
* Retrieve all categories inside a course independent category
* that should be visible to a student.
* @param $cat_id parent category
* @param $stud_id student id
* @param $cats optional: if defined, the categories will be added to this array
*/
public function get_independent_categories_with_result_for_student($cat_id, $stud_id, $cats = array())
{
$creator = api_is_allowed_to_edit() && !api_is_platform_admin() ? api_get_user_id() : null;
$crsindcats = Category::load(
null,
$creator,
'0',
$cat_id,
api_is_allowed_to_edit() ? null : 1
);
if (!empty($crsindcats)) {
foreach ($crsindcats as $crsindcat) {
if ($crsindcat->has_evaluations_with_results_for_student($stud_id)) {
$cats[] = $crsindcat;
}
}
}
return $cats;
}
/**
* Return the session id (in any case, even if it's null or 0)
* @return int Session id (can be null)
*/
public function get_session_id()
{
return $this->session_id;
}
/**
* Get appropriate subcategories visible for the user (and optionally the course and session)
* @param int $stud_id student id (default: all students)
* @param string $course_code Course code (optional)
* @param int $session_id Session ID (optional)
* @param bool $order
* @return array Array of subcategories
*/
public function get_subcategories($stud_id = null, $course_code = null, $session_id = null, $order = null)
{
if (!empty($session_id)) {
/*$tbl_grade_categories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT id FROM '.$tbl_grade_categories. ' WHERE session_id = '.$session_id;
$result_session = Database::query($sql);
if (Database::num_rows($result_session) > 0) {
$data_session = Database::fetch_array($result_session);
$parent_id = $data_session['id'];
return Category::load(null, null, null, $parent_id, null, null, $order);
}*/
}
// 1 student
if (isset($stud_id)) {
// Special case: this is the root
if ($this->id == 0) {
return Category::get_root_categories_for_student($stud_id, $course_code, $session_id);
} else {
return Category::load(
null,
null,
$course_code,
$this->id,
api_is_allowed_to_edit() ? null : 1,
$session_id,
$order
);
}
} else {
// All students
// Course admin
if (api_is_allowed_to_edit() && !api_is_platform_admin()) {
// root
if ($this->id == 0) {
return $this->get_root_categories_for_teacher(api_get_user_id(), $course_code, $session_id, false);
// inside a course
} elseif (!empty($this->course_code)) {
return Category::load(null, null, $this->course_code, $this->id, null, $session_id, $order);
} elseif (!empty($course_code)) {
return Category::load(null, null, $course_code, $this->id, null, $session_id, $order);
// course independent
} else {
return Category::load(null, api_get_user_id(), 0, $this->id, null);
}
} elseif (api_is_platform_admin()) {
// platform admin
// we explicitly avoid listing subcats from another session
return Category::load(null, null, $course_code, $this->id, null, $session_id, $order);
}
}
return array();
}
/**
* Get appropriate evaluations visible for the user
* @param int $stud_id student id (default: all students)
* @param boolean $recursive process subcategories (default: no recursion)
* @param string $course_code
* @param int $sessionId
*
* @return array
*/
public function get_evaluations(
$stud_id = null,
$recursive = false,
$course_code = '',
$sessionId = 0
) {
$evals = array();
if (empty($course_code)) {
$course_code = api_get_course_id();
}
if (empty($sessionId)) {
$sessionId = api_get_session_id();
}
// 1 student
if (isset($stud_id) && !empty($stud_id)) {
// Special case: this is the root
if ($this->id == 0) {
$evals = Evaluation::get_evaluations_with_result_for_student(0, $stud_id);
} else {
$evals = Evaluation::load(
null,
null,
$course_code,
$this->id,
api_is_allowed_to_edit() ? null : 1
);
}
} else {
// All students
// course admin
if ((api_is_allowed_to_edit() || api_is_drh() || api_is_session_admin()) &&
!api_is_platform_admin()
) {
// root
if ($this->id == 0) {
$evals = Evaluation::load(null, api_get_user_id(), null, $this->id, null);
} elseif (isset($this->course_code) && !empty($this->course_code)) {
// inside a course
$evals = Evaluation::load(null, null, $course_code, $this->id, null);
} else {
// course independent
$evals = Evaluation::load(null, api_get_user_id(), null, $this->id, null);
}
} else {
$evals = Evaluation::load(null, null, $course_code, $this->id, null);
}
}
if ($recursive) {
$subcats = $this->get_subcategories($stud_id, $course_code, $sessionId);
if (!empty($subcats)) {
foreach ($subcats as $subcat) {
$subevals = $subcat->get_evaluations($stud_id, true, $course_code);
$evals = array_merge($evals, $subevals);
}
}
}
return $evals;
}
/**
* Get appropriate links visible for the user
* @param int $stud_id student id (default: all students)
* @param boolean $recursive process subcategories (default: no recursion)
* @param string $course_code
* @param int $sessionId
*
* @return array
*/
public function get_links(
$stud_id = null,
$recursive = false,
$course_code = '',
$sessionId = 0
) {
$links = array();
if (empty($course_code)) {
$course_code = api_get_course_id();
}
if (empty($sessionId)) {
$sessionId = api_get_session_id();
}
// no links in root or course independent categories
if ($this->id == 0) {
} elseif (isset($stud_id)) {
// 1 student $stud_id
$links = LinkFactory::load(
null,
null,
null,
null,
empty($this->course_code) ? null : $course_code,
$this->id,
api_is_allowed_to_edit() ? null : 1
);
//} elseif (api_is_allowed_to_edit() || api_is_drh() || api_is_session_admin()) {
} else {
// All students -> only for course/platform admin
$links = LinkFactory::load(
null,
null,
null,
null,
empty($this->course_code) ? null : $this->course_code,
$this->id,
null
);
}
if ($recursive) {
$subcats = $this->get_subcategories(
$stud_id,
$course_code,
$sessionId
);
if (!empty($subcats)) {
/** @var Category $subcat */
foreach ($subcats as $subcat) {
$sublinks = $subcat->get_links(
$stud_id,
false,
$course_code,
$sessionId
);
$links = array_merge($links, $sublinks);
}
}
}
return $links;
}
/**
* Get all the categories from with the same given direct parent
* @param int $catId Category parent ID
* @return array Array of Category objects
*/
public function getCategories($catId)
{
$tblGradeCategories = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = 'SELECT * FROM '.$tblGradeCategories.'
WHERE parent_id = '.intval($catId);
$result = Database::query($sql);
$allcats = Category::create_category_objects_from_sql_result($result);
return $allcats;
}
/**
* Gets the type for the current object
* @return string 'C' to represent "Category" object type
*/
public function get_item_type()
{
return 'C';
}
/**
* @param array $skills
*/
public function set_skills($skills)
{
$this->skills = $skills;
}
/**
* @return null
*/
public function get_date()
{
return null;
}
/**
* @return string
*/
public function get_icon_name()
{
return 'cat';
}
/**
* Find category by name
* @param string $name_mask search string
* @return array category objects matching the search criterium
*/
public function find_category($name_mask,$allcat)
{
$foundcats = array();
foreach ($allcat as $search_cat) {
if (!(strpos(strtolower($search_cat->get_name()), strtolower($name_mask)) === false)) {
$foundcats[] = $search_cat;
}
}
return $foundcats;
}
/**
* This function, locks a category , only one who can unlock it is
* the platform administrator.
* @param int locked 1 or unlocked 0
* @return bool
* */
public function lock($locked)
{
$table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
$sql = "UPDATE $table SET locked = '".intval($locked)."'
WHERE id='".intval($this->id)."'";
Database::query($sql);
}
/**
* @param $locked
*/
public function lock_all_items($locked)
{
if (api_get_setting('gradebook_locking_enabled') == 'true') {
$this->lock($locked);
$evals_to_lock = $this->get_evaluations();
if (!empty($evals_to_lock)) {
foreach ($evals_to_lock as $item) {
$item->lock($locked);
}
}
$link_to_lock= $this->get_links();
if (!empty($link_to_lock)) {
foreach ($link_to_lock as $item ) {
$item->lock($locked);
}
}
$event_type = LOG_GRADEBOOK_UNLOCKED;
if ($locked == 1) {
$event_type = LOG_GRADEBOOK_LOCKED;
}
Event::addEvent($event_type, LOG_GRADEBOOK_ID, $this->id);
}
}
/**
* @param int $category_id
* @param int $user_id
* @return bool|string
*/
public static function register_user_certificate($category_id, $user_id)
{
$courseId = api_get_course_int_id();
$courseCode = api_get_course_id();
$sessionId = api_get_session_id();
// Generating the total score for a course
$cats_course = Category::load(
$category_id,
null,
null,
null,
null,
$sessionId,
false
);
/** @var Category $category */
$category = $cats_course[0];
//@todo move these in a function
$sum_categories_weight_array = array();
if (isset($cats_course) && !empty($cats_course)) {
$categories = Category::load(null, null, null, $category_id);
if (!empty($categories)) {
foreach ($categories as $subCategory) {
$sum_categories_weight_array[$subCategory->get_id()] = $subCategory->get_weight();
}
} else {
$sum_categories_weight_array[$category_id] = $cats_course[0]->get_weight();
}
}
$main_weight = $cats_course[0]->get_weight();
$cattotal = Category::load($category_id);
$scoretotal = $cattotal[0]->calc_score($user_id);
// Do not remove this the gradebook/lib/fe/gradebooktable.class.php
// file load this variable as a global
$scoredisplay = ScoreDisplay::instance();
$my_score_in_gradebook = $scoredisplay->display_score($scoretotal, SCORE_SIMPLE);
// A student always sees only the teacher's repartition
$scoretotal_display = $scoredisplay->display_score($scoretotal, SCORE_DIV_PERCENT);
if (!self::userFinishedCourse($user_id, $cats_course[0], 0, $courseCode, $sessionId, true)) {
return false;
}
$skillToolEnabled = api_get_setting('allow_skills_tool') == 'true';
$userHasSkills = false;
if ($skillToolEnabled) {
if (!$category->getGenerateCertificates()) {
$skill = new Skill();
$skill->add_skill_to_user(
$user_id,
$category_id,
$courseId,
$sessionId
);
}
$objSkillRelUser = new SkillRelUser();
$userSkills = $objSkillRelUser->get_user_skills($user_id, $courseId, $sessionId);
$userHasSkills = !empty($userSkills);
if (!$category->getGenerateCertificates() && $userHasSkills) {
return [
'badge_link' => Display::url(
get_lang('DownloadBadges'),
api_get_path(WEB_CODE_PATH) . "gradebook/get_badges.php?user=$user_id",
array(
'target' => '_blank',
'class' => 'btn btn-default'
)
)
];
}
}
$my_certificate = GradebookUtils::get_certificate_by_user_id(
$cats_course[0]->get_id(),
$user_id
);
if (empty($my_certificate)) {
GradebookUtils::register_user_info_about_certificate(
$category_id,
$user_id,
$my_score_in_gradebook,
api_get_utc_datetime()
);
$my_certificate = GradebookUtils::get_certificate_by_user_id(
$cats_course[0]->get_id(),
$user_id
);
}
$html = array();
if (!empty($my_certificate)) {
$certificate_obj = new Certificate($my_certificate['id']);
$fileWasGenerated = $certificate_obj->html_file_is_generated();
if (!empty($fileWasGenerated)) {
$url = api_get_path(WEB_PATH) . 'certificates/index.php?id=' . $my_certificate['id'];
$certificates = Display::url(
Display::returnFontAwesomeIcon('download').' '.get_lang('DownloadCertificate'),
$url,
array(
'target' => '_blank',
'class' => 'btn btn-sm btn-primary'
)
);
$exportToPDF = Display::url(
Display::return_icon(
'pdf.png',
get_lang('ExportToPDF'),
array(),
ICON_SIZE_MEDIUM
),
"$url&action=export"
);
$hideExportLink = api_get_setting('hide_certificate_export_link');
$hideExportLinkStudent = api_get_setting('hide_certificate_export_link_students');
if ($hideExportLink === 'true' || (api_is_student() && $hideExportLinkStudent === 'true') ) {
$exportToPDF = null;
}
$html = array(
'certificate_link' => $certificates,
'pdf_link' => $exportToPDF,
'pdf_url' => "$url&action=export"
);
if ($skillToolEnabled && $userHasSkills) {
$html['badge_link'] = Display::url(
get_lang('DownloadBadges'),
api_get_path(WEB_CODE_PATH) . "gradebook/get_badges.php?user=$user_id",
array(
'target' => '_blank',
'class' => 'btn btn-default'
)
);
}
}
return $html;
}
}
/**
* @param int $catId
* @param array $userList
*/
public static function generateCertificatesInUserList($catId, $userList)
{
if (!empty($userList)) {
foreach ($userList as $userInfo) {
self::register_user_certificate($catId, $userInfo['user_id']);
}
}
}
/**
* @param int $catId
* @param array $userList
*/
public static function exportAllCertificates(
$catId,
$userList = array()
) {
$orientation = api_get_configuration_value('certificate_pdf_orientation');
$params['orientation'] = 'landscape';
if (!empty($orientation)) {
$params['orientation'] = $orientation;
}
$params['left'] = 0;
$params['right'] = 0;
$params['top'] = 0;
$params['bottom'] = 0;
$page_format = $params['orientation'] == 'landscape' ? 'A4-L' : 'A4';
$pdf = new PDF($page_format, $params['orientation'], $params);
$certificate_list = GradebookUtils::get_list_users_certificates($catId, $userList);
$certificate_path_list = array();
if (!empty($certificate_list)) {
foreach ($certificate_list as $index=>$value) {
$list_certificate = GradebookUtils::get_list_gradebook_certificates_by_user_id(
$value['user_id'],
$catId
);
foreach ($list_certificate as $value_certificate) {
$certificate_obj = new Certificate($value_certificate['id']);
$certificate_obj->generate(array('hide_print_button' => true));
if ($certificate_obj->html_file_is_generated()) {
$certificate_path_list[]= $certificate_obj->html_file;
}
}
}
}
if (!empty($certificate_path_list)) {
// Print certificates (without the common header/footer/watermark
// stuff) and return as one multiple-pages PDF
$pdf->html_to_pdf(
$certificate_path_list,
get_lang('Certificates'),
null,
false,
false
);
}
}
/**
* @param int $catId
*/
public static function deleteAllCertificates($catId)
{
$certificate_list = GradebookUtils::get_list_users_certificates($catId);
if (!empty($certificate_list)) {
foreach ($certificate_list as $index=>$value) {
$list_certificate = GradebookUtils::get_list_gradebook_certificates_by_user_id($value['user_id'], $catId);
foreach ($list_certificate as $value_certificate) {
$certificate_obj = new Certificate($value_certificate['id']);
$certificate_obj->delete(true);
}
}
}
}
/**
* Check whether a user has finished a course by its gradebook
* @param int $userId The user ID
* @param \Category $category Optional. The gradebook category.
* To check by the gradebook category
* @param int $categoryId Optional. The gradebook category ID.
* To check by the category ID
* @param string $courseCode Optional. The course code
* @param int $sessionId Optional. The session ID
* @param boolean $recalcutateScore Whether recalculate the score
* @return boolean
*/
public static function userFinishedCourse(
$userId,
\Category $category = null,
$categoryId = 0,
$courseCode = null,
$sessionId = 0,
$recalcutateScore = false
) {
if (is_null($category) && empty($categoryId)) {
return false;
}
$courseCode = empty($courseCode) ? api_get_course_id() : $courseCode;
$sessionId = empty($sessionId) ? api_get_session_id() : $sessionId;
if (is_null($category) && !empty($categoryId)) {
$cats_course = Category::load(
$categoryId,
null,
$courseCode,
null,
null,
$sessionId,
false
);
if (empty($cats_course)) {
return false;
}
$category = $cats_course[0];
}
$currentScore = self::getCurrentScore(
$userId,
$category->get_id(),
$courseCode,
$sessionId,
$recalcutateScore
);
$minCertificateScore = $category->get_certificate_min_score();
return !empty($minCertificateScore) && $currentScore >= $minCertificateScore;
}
/**
* Get the current score (as percentage) on a gradebook category for a user
* @param int $userId The user id
* @param int $categoryId The gradebook category
* @param int $courseCode The course code
* @param int $sessionId Optional. The session id
* @param bool $recalculate
*
* @return float The score
*/
public static function getCurrentScore($userId, $categoryId, $courseCode, $sessionId = 0, $recalculate = false)
{
if ($recalculate) {
return self::calculateCurrentScore($userId, $categoryId, $courseCode, $sessionId);
}
$resultData = Database::select(
'*',
Database::get_main_table(TABLE_MAIN_GRADEBOOK_SCORE_LOG),
[
'where' => [
'category_id = ? AND user_id = ?' => [$categoryId, $userId],
],
'order' => 'registered_at DESC',
'limit' => '1'
],
'first'
);
if (empty($resultData)) {
return 0;
}
return $resultData['score'];
}
/**
* Calculate the current score on a gradebook category for a user
* @param int $userId The user id
* @param int $categoryId The gradebook category
* @param int $courseCode The course code
* @param int $sessionId Optional. The session id
* @return float The score
*/
private static function calculateCurrentScore($userId, $categoryId, $courseCode, $sessionId)
{
$cats_course = Category::load(
$categoryId,
null,
$courseCode,
null,
null,
$sessionId,
false
);
if (empty($cats_course)) {
return 0;
}
$category = $cats_course[0];
$courseEvaluations = $category->get_evaluations($userId, true);
$courseLinks = $category->get_links($userId, true);
$evaluationsAndLinks = array_merge($courseEvaluations, $courseLinks);
$categoryScore = 0;
for ($i = 0; $i < count($evaluationsAndLinks); $i++) {
$item = $evaluationsAndLinks[$i];
$score = $item->calc_score($userId);
$itemValue = 0;
if (!empty($score)) {
$divider = $score[1] == 0 ? 1 : $score[1];
$itemValue = $score[0] / $divider * $item->get_weight();
}
$categoryScore += $itemValue;
}
return floatval($categoryScore);
}
/**
* Register the current score for a user on a category gradebook
* @param float $score The achieved score
* @param int $userId The user id
* @param int $categoryId The gradebook category
* @return int The insert id
*/
public static function registerCurrentScore($score, $userId, $categoryId)
{
return Database::insert(
Database::get_main_table(TABLE_MAIN_GRADEBOOK_SCORE_LOG),
[
'category_id' => intval($categoryId),
'user_id' => intval($userId),
'score' => floatval($score),
'registered_at' => api_get_utc_datetime()
]
);
}
/**
* @return array
*/
public function getStudentList()
{
return $this->studentList;
}
/**
* @param array $list
*/
public function setStudentList($list)
{
$this->studentList = $list;
}
}