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611 lines
33 KiB
611 lines
33 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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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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/**
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* Constructor
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*/
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public function __construct() {}
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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 $TABLECOURS course,
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$TABLECOURSUSER course_rel_user
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WHERE course.code = course_rel_user.course_code
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AND course_rel_user.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()) { $result = true; }
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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[] = $course;
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}
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}
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foreach ($user_courses as $key => $course) {
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if ($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 = $user_courses[$key - 1];
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} else {
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$target_course = $user_courses[$key + 1];
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}
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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()) { $result = true; }
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}
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return $result;
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}
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/**
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* Moves the course one place up or down
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* @param string Direction up/down
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* @param string Category id
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* @return bool True If it success
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*/
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public function move_category($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()) { $result = true; }
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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()) { $result = true; }
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$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()) { $result = true; }
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} else {
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$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;
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}
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}
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return Database::num_rows(Database::query($sql));
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}
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/**
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* get the browsing of the course categories (faculties)
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* @return array array containing a list with all the categories and subcategories(if needed)
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*/
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public function browse_course_categories() {
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$tbl_courses_nodes = Database::get_main_table(TABLE_MAIN_CATEGORY);
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|
$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) {
|
|
|
|
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).')';
|
|
}
|
|
|
|
$category_code = Database::escape_string($category_code);
|
|
|
|
$my_category = (empty($category) ? " IS NULL" : "='".$category."'");
|
|
|
|
$sql = "SELECT * FROM $tbl_course WHERE category_code='$category_code' $without_special_courses ORDER BY title, visual_code";
|
|
|
|
//showing only the courses of the current Dokeos access_url_id
|
|
if ($_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 = "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, visual_code";
|
|
}
|
|
}
|
|
|
|
$result = Database::query($sql);
|
|
$courses = array();
|
|
while ($row = Database::fetch_array($result)) {
|
|
$row['registration_code'] = !empty($row['registration_code']);
|
|
$count_users = count(CourseManager::get_user_list_from_course_code($row['code']));
|
|
$lastmonth = mktime(0, 0, 0, date("m")-1, date("d"), date("Y"));
|
|
$count_connections_last_moth = Tracking::get_count_connections_on_the_course($row['code'], 0, $lastmonth);
|
|
$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' => $registration_code,
|
|
'creation_date' => $row['creation_date'],
|
|
'count_users' => $count_users,
|
|
'count_connections' => $count_connections_last_moth
|
|
);
|
|
}
|
|
|
|
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);
|
|
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']));
|
|
$lastmonth = mktime(0, 0, 0, date("m")-1, date("d"), date("Y"));
|
|
$count_connections_last_moth = Tracking::get_count_connections_on_the_course($row['code'], 0, $lastmonth);
|
|
$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' => $registration_code,
|
|
'creation_date' => $row['creation_date'],
|
|
'count_users' => $count_users,
|
|
'count_connections' => $count_connections_last_moth
|
|
);
|
|
// $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']);
|
|
}
|
|
return $courses;
|
|
}
|
|
|
|
/**
|
|
* Subscribe the user to a given course
|
|
* @param string Course code
|
|
* @return string Message about results
|
|
*/
|
|
public function subscribe_user($course_code) {
|
|
global $_user;
|
|
|
|
$all_course_information = CourseManager::get_course_information($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['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['user_id'], $course_code, $send_to_tutor_also = false);
|
|
} else if ($send == 2){
|
|
CourseManager::email_to_tutor($_user['user_id'], $course_code, $send_to_tutor_also = true);
|
|
}
|
|
return get_lang('EnrollToCourseSuccessful');
|
|
} else {
|
|
return get_lang('ErrorContactPlatformAdmin');
|
|
}
|
|
} else {
|
|
|
|
$return = '';
|
|
if (isset($_POST['course_registration_code']) && $_POST['course_registration_code'] != $all_course_information['registration_code']) {
|
|
return false;
|
|
}
|
|
$return .= get_lang('CourseRequiresPassword').'<br />';
|
|
$return .= $all_course_information['visual_code'].' - '.$all_course_information['title'];
|
|
|
|
$return .= "<form action=\"".api_get_path(WEB_CODE_PATH)."auth/courses.php?action=subscribe_course&sec_token=".$_SESSION['sec_token']."&subscribe_course=".$all_course_information['code']."&category_code=".$all_course_information['category_code']." \" method=\"post\">";
|
|
$return .= '<input type="hidden" name="token" value="'.$_SESSION['sec_token'].'" />';
|
|
//$return .= "<input type=\"hidden\" name=\"subscribe\" value=\"".$all_course_information['code']."\" />";
|
|
//$return .= "<input type=\"hidden\" name=\"category_code\" value=\"".$all_course_information['category_code']."\" />";
|
|
$return .= "<input type=\"text\" name=\"course_registration_code\" value=\"".$_POST['course_registration_code']."\" />";
|
|
$return .= "<input type=\"submit\" name=\"submit_course_registration_code\" value=\"OK\" alt=\"".get_lang('SubmitRegistrationCode')."\" /></form>";
|
|
return $return;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
?>
|
|
|