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662 lines
32 KiB
662 lines
32 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This file contains a class used like library provides functions for auth tool. It's also used like model to courses_controller (MVC pattern)
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* @author Christian Fasanando <christian1827@gmail.com>
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* @package chamilo.auth
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*/
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/**
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* Code
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*/
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require_once api_get_path(LIBRARY_PATH) . 'tracking.lib.php';
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/**
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* Auth can be used to instanciate objects or as a library to manage courses
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* @package chamilo.auth
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*/
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class Auth {
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/**
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* Constructor
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*/
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public function __construct() {
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}
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/**
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* retrieves all the courses that the user has already subscribed to
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* @param int User id
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* @return array an array containing all the information of the courses of the given user
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*/
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public function get_courses_of_user($user_id) {
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$TABLECOURS = Database::get_main_table(TABLE_MAIN_COURSE);
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$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$TABLE_COURSE_FIELD = Database::get_main_table(TABLE_MAIN_COURSE_FIELD);
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$TABLE_COURSE_FIELD_VALUE = Database::get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
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// get course list auto-register
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$sql = "SELECT course_code FROM $TABLE_COURSE_FIELD_VALUE tcfv INNER JOIN $TABLE_COURSE_FIELD tcf ON " .
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" tcfv.field_id = tcf.id WHERE tcf.field_variable = 'special_course' AND tcfv.field_value = 1 ";
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$special_course_result = Database::query($sql);
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if (Database::num_rows($special_course_result) > 0) {
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$special_course_list = array();
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while ($result_row = Database::fetch_array($special_course_result)) {
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$special_course_list[] = '"' . $result_row['course_code'] . '"';
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}
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}
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$without_special_courses = '';
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if (!empty($special_course_list)) {
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$without_special_courses = ' AND course.code NOT IN (' . implode(',', $special_course_list) . ')';
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}
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// Secondly we select the courses that are in a category (user_course_cat<>0) and sort these according to the sort of the category
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$user_id = intval($user_id);
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$sql_select_courses = "SELECT course.code k, course.visual_code vc, course.subscribe subscr, course.unsubscribe unsubscr,
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course.title i, course.tutor_name t, course.db_name db, course.directory dir, course_rel_user.status status,
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course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
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FROM $TABLECOURS course, $TABLECOURSUSER course_rel_user
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WHERE course.code = course_rel_user.course_code
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AND course_rel_user.relation_type<>" . COURSE_RELATION_TYPE_RRHH . "
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AND course_rel_user.user_id = '" . $user_id . "' $without_special_courses
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ORDER BY course_rel_user.sort ASC";
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$result = Database::query($sql_select_courses);
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while ($row = Database::fetch_array($result)) {
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//we only need the database name of the course
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$courses[] = array('db' => $row['db'], 'code' => $row['k'], 'visual_code' => $row['vc'], 'title' => $row['i'], 'directory' => $row['dir'], 'status' => $row['status'], 'tutor' => $row['t'], 'subscribe' => $row['subscr'], 'unsubscribe' => $row['unsubscr'], 'sort' => $row['sort'], 'user_course_category' => $row['user_course_cat']);
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}
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return $courses;
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}
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/**
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* retrieves the user defined course categories
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* @return array containing all the IDs of the user defined courses categories, sorted by the "sort" field
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*/
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public function get_user_course_categories() {
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$user_id = api_get_user_id();
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$table_category = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$sql = "SELECT * FROM " . $table_category . " WHERE user_id=$user_id ORDER BY sort ASC";
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$result = Database::query($sql);
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$output = array();
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while ($row = Database::fetch_array($result)) {
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$output[] = $row;
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}
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return $output;
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}
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/**
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* This function get all the courses in the particular user category;
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* @param int User category id
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* @return string: the name of the user defined course category
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*/
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public function get_courses_in_category() {
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$user_id = api_get_user_id();
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// table definitions
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$TABLECOURS = Database::get_main_table(TABLE_MAIN_COURSE);
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$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$TABLE_USER_COURSE_CATEGORY = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$TABLE_COURSE_FIELD = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD);
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$TABLE_COURSE_FIELD_VALUE = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
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// get course list auto-register
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$sql = "SELECT course_code FROM $TABLE_COURSE_FIELD_VALUE tcfv INNER JOIN $TABLE_COURSE_FIELD tcf ON " .
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" tcfv.field_id = tcf.id WHERE tcf.field_variable = 'special_course' AND tcfv.field_value = 1 ";
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$special_course_result = Database::query($sql);
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if (Database::num_rows($special_course_result) > 0) {
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$special_course_list = array();
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while ($result_row = Database::fetch_array($special_course_result)) {
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$special_course_list[] = '"' . $result_row['course_code'] . '"';
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}
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}
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$without_special_courses = '';
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if (!empty($special_course_list)) {
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$without_special_courses = ' AND course.code NOT IN (' . implode(',', $special_course_list) . ')';
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}
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$sql_select_courses = "SELECT course.code, course.visual_code, course.subscribe subscr, course.unsubscribe unsubscr,
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course.title title, course.tutor_name tutor, course.db_name, course.directory, course_rel_user.status status,
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course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
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FROM $TABLECOURS course,
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$TABLECOURSUSER course_rel_user
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WHERE course.code = course_rel_user.course_code
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AND course_rel_user.user_id = '" . $user_id . "'
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AND course_rel_user.relation_type <> " . COURSE_RELATION_TYPE_RRHH . "
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$without_special_courses
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ORDER BY course_rel_user.user_course_cat, course_rel_user.sort ASC";
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$result = Database::query($sql_select_courses);
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$number_of_courses = Database::num_rows($result);
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$data = array();
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while ($course = Database::fetch_array($result)) {
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$data[$course['user_course_cat']][] = $course;
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}
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return $data;
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}
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/**
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* stores the changes in a course category (moving a course to a different course category)
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* @param string Course code
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* @param int Category id
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* @return bool True if it success
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*/
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public function store_changecoursecategory($course_code, $newcategory) {
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$course_code = Database::escape_string($course_code);
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$newcategory = intval($newcategory);
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$current_user = api_get_user_id();
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$result = false;
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$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$max_sort_value = api_max_sort_value($newcategory, $current_user); // max_sort_value($newcategory);
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Database::query("UPDATE $TABLECOURSUSER SET user_course_cat='" . $newcategory . "', sort='" . ($max_sort_value + 1) . "' WHERE course_code='" . $course_code . "' AND user_id='" . $current_user . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ");
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if (Database::affected_rows()) {
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$result = true;
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}
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return $result;
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}
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/**
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* moves the course one place up or down
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* @param string Direction (up/down)
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* @param string Course code
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* @param int Category id
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* @return bool True if it success
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*/
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public function move_course($direction, $course2move, $category) {
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// definition of tables
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$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$current_user_id = api_get_user_id();
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$all_user_courses = $this->get_courses_of_user($current_user_id);
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$result = false;
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// we need only the courses of the category we are moving in
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$user_courses = array();
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foreach ($all_user_courses as $key => $course) {
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if ($course['user_course_category'] == $category) {
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$user_courses[] = $course;
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}
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}
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$target_course = array();
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foreach ($user_courses as $count => $course) {
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if ($course2move == $course['code']) {
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// source_course is the course where we clicked the up or down icon
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$source_course = $course;
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// target_course is the course before/after the source_course (depending on the up/down icon)
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if ($direction == 'up') {
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$target_course = $user_courses[$count - 1];
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} else {
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$target_course = $user_courses[$count + 1];
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}
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break;
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}
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}
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if (count($target_course) > 0 && count($source_course) > 0) {
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$sql_update1 = "UPDATE $TABLECOURSUSER SET sort='" . $target_course['sort'] . "' WHERE course_code='" . $source_course['code'] . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
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$sql_update2 = "UPDATE $TABLECOURSUSER SET sort='" . $source_course['sort'] . "' WHERE course_code='" . $target_course['code'] . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
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Database::query($sql_update2);
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Database::query($sql_update1);
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if (Database::affected_rows()) {
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$result = true;
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}
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}
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return $result;
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}
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/**
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* Moves the course one place up or down
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* @param string Direction up/down
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* @param string Category id
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* @return bool True If it success
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*/
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public function move_category($direction, $category2move) {
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// the database definition of the table that stores the user defined course categories
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$table_user_defined_category = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$current_user_id = api_get_user_id();
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$user_coursecategories = $this->get_user_course_categories();
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$user_course_categories_info = $this->get_user_course_categories_info();
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$result = false;
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foreach ($user_coursecategories as $key => $category) {
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$category_id = $category['id'];
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if ($category2move == $category_id) {
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// source_course is the course where we clicked the up or down icon
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$source_category = $user_course_categories_info[$category2move];
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// target_course is the course before/after the source_course (depending on the up/down icon)
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if ($direction == 'up') {
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$target_category = $user_course_categories_info[$user_coursecategories[$key - 1]['id']];
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} else {
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$target_category = $user_course_categories_info[$user_coursecategories[$key + 1]['id']];
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}
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}
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}
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if (count($target_category) > 0 && count($source_category) > 0) {
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$sql_update1 = "UPDATE $table_user_defined_category SET sort='" . Database::escape_string($target_category['sort']) . "' WHERE id='" . intval($source_category['id']) . "' AND user_id='" . $current_user_id . "'";
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$sql_update2 = "UPDATE $table_user_defined_category SET sort='" . Database::escape_string($source_category['sort']) . "' WHERE id='" . intval($target_category['id']) . "' AND user_id='" . $current_user_id . "'";
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Database::query($sql_update2);
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Database::query($sql_update1);
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if (Database::affected_rows()) {
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$result = true;
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}
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}
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return $result;
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}
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/**
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* Retrieves the user defined course categories and all the info that goes with it
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* @return array containing all the info of the user defined courses categories with the id as key of the array
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*/
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public function get_user_course_categories_info() {
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$current_user_id = api_get_user_id();
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$table_category = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$sql = "SELECT * FROM " . $table_category . " WHERE user_id='" . $current_user_id . "' ORDER BY sort ASC";
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$result = Database::query($sql);
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while ($row = Database::fetch_array($result)) {
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$output[$row['id']] = $row;
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}
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return $output;
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}
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/**
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* Updates the user course category in the chamilo_user database
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* @param string Category title
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* @param int Category id
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* @return bool True if it success
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*/
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public function store_edit_course_category($title, $category_id) {
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// protect data
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$title = Database::escape_string($title);
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$category_id = intval($category_id);
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$result = false;
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$tucc = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$sql_update = "UPDATE $tucc SET title='" . api_htmlentities($title, ENT_QUOTES, api_get_system_encoding()) . "' WHERE id='" . $category_id . "'";
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Database::query($sql_update);
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if (Database::affected_rows()) {
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$result = true;
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}
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return $result;
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}
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/**
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* deletes a course category and moves all the courses that were in this category to main category
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* @param int Category id
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* @return bool True if it success
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*/
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public function delete_course_category($category_id) {
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$current_user_id = api_get_user_id();
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$tucc = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$category_id = intval($category_id);
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$result = false;
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$sql_delete = "DELETE FROM $tucc WHERE id='" . $category_id . "' and user_id='" . $current_user_id . "'";
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Database::query($sql_delete);
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if (Database::affected_rows()) {
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$result = true;
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}
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$sql_update = "UPDATE $TABLECOURSUSER SET user_course_cat='0' WHERE user_course_cat='" . $category_id . "' AND user_id='" . $current_user_id . "' AND relation_type<>" . COURSE_RELATION_TYPE_RRHH . " ";
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Database::query($sql_update);
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return $result;
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}
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/**
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* unsubscribe the user from a given course
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* @param string Course code
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* @return bool True if it success
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*/
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public function remove_user_from_course($course_code) {
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$tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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// protect variables
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$current_user_id = api_get_user_id();
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$course_code = Database::escape_string($course_code);
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$result = true;
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// we check (once again) if the user is not course administrator
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// because the course administrator cannot unsubscribe himself
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// (s)he can only delete the course
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$sql_check = "SELECT * FROM $tbl_course_user WHERE user_id='" . $current_user_id . "' AND course_code='" . $course_code . "' AND status='1' ";
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$result_check = Database::query($sql_check);
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$number_of_rows = Database::num_rows($result_check);
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if ($number_of_rows > 0) {
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$result = false;
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}
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CourseManager::unsubscribe_user($current_user_id, $course_code);
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return $result;
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}
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/**
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* stores the user course category in the chamilo_user database
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* @param string Category title
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* @return bool True if it success
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*/
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public function store_course_category($category_title) {
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$tucc = Database::get_user_personal_table(TABLE_USER_COURSE_CATEGORY);
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// protect data
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$current_user_id = api_get_user_id();
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$category_title = Database::escape_string($category_title);
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$result = false;
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// step 1: we determine the max value of the user defined course categories
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$sql = "SELECT sort FROM $tucc WHERE user_id='" . $current_user_id . "' ORDER BY sort DESC";
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$rs_sort = Database::query($sql);
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$maxsort = Database::fetch_array($rs_sort);
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$nextsort = $maxsort['sort'] + 1;
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// step 2: we check if there is already a category with this name, if not we store it, else we give an error.
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$sql = "SELECT * FROM $tucc WHERE user_id='" . $current_user_id . "' AND title='" . $category_title . "'ORDER BY sort DESC";
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$rs = Database::query($sql);
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if (Database::num_rows($rs) == 0) {
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$sql_insert = "INSERT INTO $tucc (user_id, title,sort) VALUES ('" . $current_user_id . "', '" . api_htmlentities($category_title, ENT_QUOTES, api_get_system_encoding()) . "', '" . $nextsort . "')";
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Database::query($sql_insert);
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if (Database::affected_rows()) {
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$result = true;
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}
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} else {
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$result = false;
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}
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return $result;
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}
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/**
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* Counts the number of courses in a given course category
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* @param string Category code
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* @return int Count of courses
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*/
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public function count_courses_in_category($category_code) {
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$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
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$TABLE_COURSE_FIELD = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD);
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$TABLE_COURSE_FIELD_VALUE = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
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// get course list auto-register
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$sql = "SELECT course_code FROM $TABLE_COURSE_FIELD_VALUE tcfv INNER JOIN $TABLE_COURSE_FIELD tcf ON " .
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" tcfv.field_id = tcf.id WHERE tcf.field_variable = 'special_course' AND tcfv.field_value = 1 ";
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$special_course_result = Database::query($sql);
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if (Database::num_rows($special_course_result) > 0) {
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$special_course_list = array();
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while ($result_row = Database::fetch_array($special_course_result)) {
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$special_course_list[] = '"' . $result_row['course_code'] . '"';
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}
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}
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$without_special_courses = '';
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if (!empty($special_course_list)) {
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$without_special_courses = ' AND course.code NOT IN (' . implode(',', $special_course_list) . ')';
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}
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$sql = "SELECT * FROM $tbl_course WHERE category_code" . (empty($category_code) ? " IS NULL" : "='" . $category_code . "'") . $without_special_courses;
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// Showing only the courses of the current Dokeos access_url_id.
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global $_configuration;
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if ($_configuration['multiple_access_urls']) {
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$url_access_id = api_get_current_access_url_id();
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if ($url_access_id != -1) {
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$tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
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$sql = "SELECT * FROM $tbl_course as course INNER JOIN $tbl_url_rel_course as url_rel_course
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ON (url_rel_course.course_code=course.code)
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WHERE access_url_id = $url_access_id AND category_code" . (empty($category_code) ? " IS NULL" : "='" . $category_code . "'") . $without_special_courses;
|
|
}
|
|
}
|
|
return Database::num_rows(Database::query($sql));
|
|
}
|
|
|
|
/**
|
|
* get the browsing of the course categories (faculties)
|
|
* @return array array containing a list with all the categories and subcategories(if needed)
|
|
*/
|
|
public function browse_course_categories() {
|
|
$tbl_courses_nodes = Database::get_main_table(TABLE_MAIN_CATEGORY);
|
|
$sql = "SELECT * FROM $tbl_courses_nodes ORDER BY tree_pos ASC";
|
|
$result = Database::query($sql);
|
|
$categories = array();
|
|
while ($row = Database::fetch_array($result)) {
|
|
$count_courses = $this->count_courses_in_category($row['code']);
|
|
$row['count_courses'] = $count_courses;
|
|
if (!isset($row['parent_id'])) {
|
|
$categories[0][$row['tree_pos']] = $row;
|
|
} else {
|
|
$categories[$row['parent_id']][$row['tree_pos']] = $row;
|
|
}
|
|
}
|
|
return $categories;
|
|
}
|
|
|
|
/**
|
|
* Display all the courses in the given course category. I could have used a parameter here
|
|
* @param string Category code
|
|
* @return array Courses data
|
|
*/
|
|
public function browse_courses_in_category($category_code, $random_value = null) {
|
|
global $_configuration;
|
|
$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
|
|
$TABLE_COURSE_FIELD = Database::get_main_table(TABLE_MAIN_COURSE_FIELD);
|
|
$TABLE_COURSE_FIELD_VALUE = Database::get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
|
|
|
|
|
|
// Get course list auto-register
|
|
$sql = "SELECT course_code FROM $TABLE_COURSE_FIELD_VALUE tcfv INNER JOIN $TABLE_COURSE_FIELD tcf ON tcfv.field_id = tcf.id
|
|
WHERE tcf.field_variable = 'special_course' AND tcfv.field_value = 1 ";
|
|
|
|
$special_course_result = Database::query($sql);
|
|
if (Database::num_rows($special_course_result) > 0) {
|
|
$special_course_list = array();
|
|
while ($result_row = Database::fetch_array($special_course_result)) {
|
|
$special_course_list[] = '"' . $result_row['course_code'] . '"';
|
|
}
|
|
}
|
|
|
|
$without_special_courses = '';
|
|
if (!empty($special_course_list)) {
|
|
$without_special_courses = ' AND course.code NOT IN (' . implode(',', $special_course_list) . ')';
|
|
}
|
|
|
|
if (!empty($random_value)) {
|
|
$random_value = intval($random_value);
|
|
|
|
$sql = "SELECT COUNT(*) FROM $tbl_course";
|
|
$result = Database::query($sql);
|
|
list($num_records) = Database::fetch_row($result);
|
|
|
|
if ($_configuration['multiple_access_urls']) {
|
|
|
|
$url_access_id = api_get_current_access_url_id();
|
|
$tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
|
|
|
|
$sql = "SELECT COUNT(*) FROM $tbl_course course INNER JOIN $tbl_url_rel_course as url_rel_course ON (url_rel_course.course_code=course.code)
|
|
WHERE access_url_id = $url_access_id ";
|
|
$result = Database::query($sql);
|
|
list($num_records) = Database::fetch_row($result);
|
|
|
|
$sql = "SELECT course.id FROM $tbl_course course INNER JOIN $tbl_url_rel_course as url_rel_course
|
|
ON (url_rel_course.course_code=course.code)
|
|
WHERE access_url_id = $url_access_id AND
|
|
RAND()*$num_records< $random_value
|
|
$without_special_courses ORDER BY RAND() LIMIT 0, $random_value";
|
|
} else {
|
|
$sql = "SELECT id FROM $tbl_course course WHERE RAND()*$num_records< $random_value $without_special_courses ORDER BY RAND() LIMIT 0, $random_value";
|
|
}
|
|
|
|
$result = Database::query($sql);
|
|
$id_in = null;
|
|
while (list($id) = Database::fetch_row($result)) {
|
|
if ($id_in) {
|
|
$id_in.=",$id";
|
|
} else {
|
|
$id_in = "$id";
|
|
}
|
|
}
|
|
$sql = "SELECT * FROM $tbl_course WHERE id IN($id_in)";
|
|
} else {
|
|
$category_code = Database::escape_string($category_code);
|
|
if (empty($category_code)) {
|
|
$sql = "SELECT * FROM $tbl_course WHERE 1=1 $without_special_courses ORDER BY title ";
|
|
} else {
|
|
$sql = "SELECT * FROM $tbl_course WHERE category_code='$category_code' $without_special_courses ORDER BY title ";
|
|
}
|
|
|
|
//showing only the courses of the current Chamilo access_url_id
|
|
if ($_configuration['multiple_access_urls']) {
|
|
$url_access_id = api_get_current_access_url_id();
|
|
$tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
|
|
$sql = "SELECT * FROM $tbl_course as course INNER JOIN $tbl_url_rel_course as url_rel_course
|
|
ON (url_rel_course.course_code=course.code)
|
|
WHERE access_url_id = $url_access_id AND category_code='$category_code' $without_special_courses ORDER BY title";
|
|
}
|
|
}
|
|
|
|
$result = Database::query($sql);
|
|
$courses = array();
|
|
while ($row = Database::fetch_array($result)) {
|
|
$row['registration_code'] = !empty($row['registration_code']);
|
|
$count_users = CourseManager::get_users_count_in_course($row['code']);
|
|
$count_connections_last_month = Tracking::get_course_connections_count($row['code'], 0, api_get_utc_datetime(time() - (30 * 86400)));
|
|
|
|
if ($row['tutor_name'] == '0') {
|
|
$row['tutor_name'] = get_lang('NoManager');
|
|
}
|
|
$point_info = CourseManager::get_course_ranking($row['id'], 0);
|
|
$courses[] = array(
|
|
'real_id' => $row['id'],
|
|
'point_info' => $point_info,
|
|
'code' => $row['code'],
|
|
'directory' => $row['directory'],
|
|
'db' => $row['db_name'],
|
|
'visual_code' => $row['visual_code'],
|
|
'title' => $row['title'],
|
|
'tutor' => $row['tutor_name'],
|
|
'subscribe' => $row['subscribe'],
|
|
'unsubscribe' => $row['unsubscribe'],
|
|
'registration_code' => $row['registration_code'],
|
|
'creation_date' => $row['creation_date'],
|
|
'visibility' => $row['visibility'],
|
|
'count_users' => $count_users,
|
|
'count_connections' => $count_connections_last_month
|
|
);
|
|
}
|
|
|
|
return $courses;
|
|
}
|
|
|
|
/**
|
|
* Search the courses database for a course that matches the search term.
|
|
* The search is done on the code, title and tutor field of the course table.
|
|
* @param string $search_term: the string that the user submitted, what we are looking for
|
|
* @return array an array containing a list of all the courses (the code, directory, dabase, visual_code, title, ... ) matching the the search term.
|
|
*/
|
|
public function search_courses($search_term) {
|
|
$TABLECOURS = Database::get_main_table(TABLE_MAIN_COURSE);
|
|
$TABLE_COURSE_FIELD = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD);
|
|
$TABLE_COURSE_FIELD_VALUE = Database :: get_main_table(TABLE_MAIN_COURSE_FIELD_VALUES);
|
|
|
|
// get course list auto-register
|
|
$sql = "SELECT course_code FROM $TABLE_COURSE_FIELD_VALUE tcfv INNER JOIN $TABLE_COURSE_FIELD tcf ON tcfv.field_id = tcf.id
|
|
WHERE tcf.field_variable = 'special_course' AND tcfv.field_value = 1 ";
|
|
|
|
$special_course_result = Database::query($sql);
|
|
if (Database::num_rows($special_course_result) > 0) {
|
|
$special_course_list = array();
|
|
while ($result_row = Database::fetch_array($special_course_result)) {
|
|
$special_course_list[] = '"' . $result_row['course_code'] . '"';
|
|
}
|
|
}
|
|
$without_special_courses = '';
|
|
if (!empty($special_course_list)) {
|
|
$without_special_courses = ' AND course.code NOT IN (' . implode(',', $special_course_list) . ')';
|
|
}
|
|
|
|
$search_term_safe = Database::escape_string($search_term);
|
|
$sql_find = "SELECT * FROM $TABLECOURS WHERE (code LIKE '%" . $search_term_safe . "%' OR title LIKE '%" . $search_term_safe . "%' OR tutor_name LIKE '%" . $search_term_safe . "%') $without_special_courses ORDER BY title, visual_code ASC";
|
|
|
|
global $_configuration;
|
|
if ($_configuration['multiple_access_urls']) {
|
|
$url_access_id = api_get_current_access_url_id();
|
|
if ($url_access_id != -1) {
|
|
$tbl_url_rel_course = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
|
|
$sql_find = "SELECT * FROM $TABLECOURS as course INNER JOIN $tbl_url_rel_course as url_rel_course
|
|
ON (url_rel_course.course_code=course.code)
|
|
WHERE access_url_id = $url_access_id AND (code LIKE '%" . $search_term_safe . "%' OR title LIKE '%" . $search_term_safe . "%' OR tutor_name LIKE '%" . $search_term_safe . "%' ) $without_special_courses ORDER BY title, visual_code ASC ";
|
|
}
|
|
}
|
|
$result_find = Database::query($sql_find);
|
|
$courses = array();
|
|
while ($row = Database::fetch_array($result_find)) {
|
|
$row['registration_code'] = !empty($row['registration_code']);
|
|
$count_users = count(CourseManager::get_user_list_from_course_code($row['code']));
|
|
$count_connections_last_month = Tracking::get_course_connections_count($row['code'], 0, api_get_utc_datetime(time() - (30 * 86400)));
|
|
$courses[] = array(
|
|
'code' => $row['code'],
|
|
'directory' => $row['directory'],
|
|
'db' => $row['db_name'],
|
|
'visual_code' => $row['visual_code'],
|
|
'title' => $row['title'],
|
|
'tutor' => $row['tutor_name'],
|
|
'subscribe' => $row['subscribe'],
|
|
'unsubscribe' => $row['unsubscribe'],
|
|
'registration_code' => $row['registration_code'],
|
|
'creation_date' => $row['creation_date'],
|
|
'visibility' => $row['visibility'],
|
|
'count_users' => $count_users,
|
|
'count_connections' => $count_connections_last_month
|
|
);
|
|
}
|
|
return $courses;
|
|
}
|
|
|
|
/**
|
|
* Subscribe the user to a given course
|
|
* @param string Course code
|
|
* @return string Message about results
|
|
*/
|
|
public function subscribe_user($course_code) {
|
|
$user_id = api_get_user_id();
|
|
$all_course_information = CourseManager::get_course_information($course_code);
|
|
|
|
if ($all_course_information['registration_code'] == '' || $_POST['course_registration_code'] == $all_course_information['registration_code']) {
|
|
if (api_is_platform_admin()) {
|
|
$status_user_in_new_course = COURSEMANAGER;
|
|
} else {
|
|
$status_user_in_new_course = null;
|
|
}
|
|
if (CourseManager::add_user_to_course($user_id, $course_code, $status_user_in_new_course)) {
|
|
$send = api_get_course_setting('email_alert_to_teacher_on_new_user_in_course', $course_code);
|
|
if ($send == 1) {
|
|
CourseManager::email_to_tutor($user_id, $course_code, $send_to_tutor_also = false);
|
|
} else if ($send == 2) {
|
|
CourseManager::email_to_tutor($user_id, $course_code, $send_to_tutor_also = true);
|
|
}
|
|
$url = Display::url($all_course_information['title'], api_get_course_url($course_code));
|
|
$message = sprintf(get_lang('EnrollToCourseXSuccessful'), $url);
|
|
} else {
|
|
$message = get_lang('ErrorContactPlatformAdmin');
|
|
}
|
|
return array('message' => $message);
|
|
} else {
|
|
if (isset($_POST['course_registration_code']) && $_POST['course_registration_code'] != $all_course_information['registration_code']) {
|
|
return false;
|
|
}
|
|
$message = get_lang('CourseRequiresPassword') . '<br />';
|
|
$message .= $all_course_information['title'].' ('.$all_course_information['visual_code'].') ';
|
|
|
|
$action = api_get_path(WEB_CODE_PATH) . "auth/courses.php?action=subscribe_user_with_password&sec_token=" . $_SESSION['sec_token'];
|
|
$form = new FormValidator('subscribe_user_with_password', 'post', $action);
|
|
$form->addElement('hidden', 'sec_token', $_SESSION['sec_token']);
|
|
$form->addElement('hidden', 'subscribe_user_with_password', $all_course_information['code']);
|
|
$form->addElement('text', 'course_registration_code');
|
|
$form->addElement('button', 'submit', get_lang('SubmitRegistrationCode'));
|
|
$content = $form->return_form();
|
|
return array('message' => $message, 'content' => $content);
|
|
}
|
|
}
|
|
} |