Tutor.php — Tutor LMS – eLearning and online course solution 1.8.2

tutor / classes / Tutor.php

tutor / classes Last commit date

Addons.php 5 years ago Admin.php 5 years ago Ajax.php 5 years ago Assets.php 5 years ago Course.php 5 years ago Course_Filter.php 5 years ago Course_Settings_Tabs.php 5 years ago Course_Widget.php 5 years ago Custom_Validation.php 5 years ago Dashboard.php 5 years ago Email.php 5 years ago FormHandler.php 5 years ago Frontend.php 5 years ago Gutenberg.php 5 years ago Instructor.php 5 years ago Instructors_List.php 5 years ago Lesson.php 5 years ago Options.php 5 years ago Post_types.php 5 years ago Private_Course_Access.php 5 years ago Q_and_A.php 5 years ago Question_Answers_List.php 5 years ago Quiz.php 5 years ago Quiz_Attempts_List.php 5 years ago RestAPI.php 5 years ago Rewrite_Rules.php 5 years ago Shortcode.php 5 years ago Student.php 5 years ago Students_List.php 5 years ago Taxonomies.php 5 years ago Template.php 5 years ago Theme_Compatibility.php 5 years ago Tools.php 5 years ago Tutor.php 5 years ago TutorEDD.php 5 years ago Tutor_Base.php 5 years ago Tutor_List_Table.php 5 years ago Tutor_Setup.php 5 years ago Upgrader.php 5 years ago User.php 5 years ago Utils.php 5 years ago Video_Stream.php 5 years ago Withdraw.php 5 years ago Withdraw_Requests_List.php 5 years ago WooCommerce.php 5 years ago

Tutor.php

669 lines

1	<?php
2	namespace TUTOR;
3
4	if ( ! defined( 'ABSPATH' ) )
5	exit;
6
7	final class Tutor{
8	public $version = TUTOR_VERSION;
9	public $path;
10	public $url;
11	public $basename;
12
13	/**
14	* The single instance of the class.
15	*
16	* @since v.1.2.0
17	*/
18	protected static $_instance = null;
19
20	//Components
21	public $utils;
22	public $admin;
23	public $ajax;
24	public $options;
25	public $shortcode;
26
27	private $addons;
28	private $post_types;
29	private $taxonomies;
30	private $assets;
31	private $course;
32	private $lesson;
33	private $rewrite_rules;
34	private $template;
35	private $instructor;
36	private $student;
37	private $q_and_a;
38	private $quiz;
39	private $tools;
40	private $user;
41	private $theme_compatibility;
42	private $gutenberg;
43	private $course_settings_tabs;
44	private $withdraw;
45
46	private $course_widget;
47	private $upgrader;
48	private $dashboard;
49	private $form_handler;
50	private $frontend;
51	private $email;
52
53	//Integrations
54	private $woocommerce;
55	private $edd;
56
57	/**
58	* @return null\|Tutor
59	*
60	* Run the TUTOR
61	*
62	* @since 1.2.0
63	*/
64	public static function instance() {
65	if ( is_null( self::$_instance ) ) {
66	self::$_instance = new self();
67	}
68	return self::$_instance;
69	}
70
71	function __construct() {
72
73	$this->path = plugin_dir_path(TUTOR_FILE);
74	$this->url = plugin_dir_url(TUTOR_FILE);
75	$this->basename = plugin_basename(TUTOR_FILE);
76
77	/**
78	* Adding Tutor Database table to $wpdb;
79	* @since v.1.4.2
80	*/
81	global $wpdb;
82	$wpdb->tutor_earnings = $wpdb->prefix.'tutor_earnings';
83	$wpdb->tutor_gradebooks = $wpdb->prefix.'tutor_gradebooks';
84	$wpdb->tutor_gradebooks_results = $wpdb->prefix.'tutor_gradebooks_results';
85	$wpdb->tutor_quiz_attempts = $wpdb->prefix.'tutor_quiz_attempts';
86	$wpdb->tutor_quiz_attempt_answers = $wpdb->prefix.'tutor_quiz_attempt_answers';
87	$wpdb->tutor_quiz_questions = $wpdb->prefix.'tutor_quiz_questions';
88	$wpdb->tutor_quiz_question_answers = $wpdb->prefix.'tutor_quiz_question_answers';
89	$wpdb->tutor_withdraws = $wpdb->prefix.'tutor_withdraws';
90
91	/**
92	* Changing default wp doing ajax return based on tutor ajax action
93	*/
94	add_filter('wp_doing_ajax', array($this, 'wp_doing_ajax'));
95
96	/**
97	* Include Files
98	*/
99	//add_action( 'init', array( $this, 'includes' ), 11 );
100	$this->includes();
101
102	/**
103	* Loading Autoloader
104	*/
105
106	if ( function_exists( '__autoload' ) ) {
107	spl_autoload_register( '__autoload' );
108	}
109	spl_autoload_register(array($this, 'loader'));
110
111	do_action('tutor_before_load');
112
113	$this->addons = new Addons();
114	$this->post_types = new Post_types();
115	$this->taxonomies = new Taxonomies();
116	$this->assets = new Assets();
117	$this->admin = new Admin();
118	$this->ajax = new Ajax();
119	$this->options = new Options();
120	$this->shortcode = new Shortcode();
121	$this->course = new Course();
122	$this->lesson = new Lesson();
123	$this->rewrite_rules = new Rewrite_Rules();
124	$this->template = new Template();
125	$this->instructor = new Instructor();
126	$this->student = new Student();
127	$this->q_and_a = new Q_and_A();
128	$this->quiz = new Quiz();
129	$this->tools = new Tools();
130	$this->user = new User();
131	$this->theme_compatibility = new Theme_Compatibility();
132	$this->gutenberg = new Gutenberg();
133	$this->course_settings_tabs = new Course_Settings_Tabs();
134	$this->withdraw = new Withdraw();
135	$this->course_widget = new Course_Widget();
136	$this->upgrader = new Upgrader();
137	$this->dashboard = new Dashboard();
138	$this->form_handler = new FormHandler();
139	$this->frontend = new Frontend();
140	$this->email = new Email();
141	$this->rest_api = new RestAPI();
142	$this->setup = new Tutor_Setup();
143	$this->private_course_access = new Private_Course_Access();
144	$this->course_filter = new Course_Filter();
145
146	//Integrations
147	$this->woocommerce = new WooCommerce();
148	$this->edd = new TutorEDD();
149
150	/**
151	* Run Method
152	* @since v.1.2.0
153	*/
154	$this->run();
155
156	do_action('tutor_loaded');
157
158	add_action( 'init', array( $this, 'init_action' ) );
159
160	/**
161	* redirect to the wizard page
162	* @since v.1.5.7
163	*
164	*/
165
166	add_action( 'activated_plugin', array( $this, 'activated_tutor' ) );
167	}
168
169	/**
170	* @param $plugin
171	*
172	* redirect to the wizard page
173	* @since v.1.5.7
174	*
175	*/
176	public function activated_tutor( $plugin ) {
177	if( $plugin == tutor()->basename ) {
178	if( (! get_option('tutor_wizard') ) && version_compare(TUTOR_VERSION, '1.5.6', '>') ) {
179	update_option('tutor_wizard', 'active');
180	exit(wp_redirect(admin_url('admin.php?page=tutor-setup')));
181	}
182	}
183	}
184
185	/**
186	* @param $className
187	*
188	* Auto Load class and the files
189	*/
190	private function loader($className) {
191	if ( ! class_exists($className)){
192	$className = preg_replace(
193	array('/([a-z])([A-Z])/', '/\\\/'),
194	array('$1$2', DIRECTORY_SEPARATOR),
195	$className
196	);
197
198	$className = str_replace('TUTOR'.DIRECTORY_SEPARATOR, 'classes'.DIRECTORY_SEPARATOR, $className);
199	$file_name = $this->path.$className.'.php';
200
201	if (file_exists($file_name) ) {
202	require_once $file_name;
203	}
204	}
205	}
206
207	public function includes(){
208	include tutor()->path.'includes/tutor-general-functions.php';
209	include tutor()->path.'includes/tutor-template-functions.php';
210	include tutor()->path.'includes/tutor-template-hook.php';
211	}
212
213	//Run the TUTOR right now
214	public function run(){
215	do_action('tutor_before_run');
216
217	do_action('tutor_after_run');
218	}
219
220	/**
221	* Tutor Action Via do_action
222	* @since 1.2.14
223	*/
224	public function init_action(){
225	if (isset($_REQUEST['tutor_action'])){
226	do_action('tutor_action_'.$_REQUEST['tutor_action']);
227	}
228	}
229
230	/**
231	* Do some task during plugin activation
232	*/
233	public static function tutor_activate(){
234	$version = get_option('tutor_version');
235	if ( ! function_exists('tutor_time')){
236	include tutor()->path.'includes/tutor-general-functions.php';
237	}
238	//Save Option
239	if ( ! $version ){
240	//Create Database
241	self::create_database();
242
243	$options = self::default_options();
244	update_option('tutor_option', $options);
245
246	//Rewrite Flush
247	update_option('required_rewrite_flush', tutor_time());
248	self::manage_tutor_roles_and_permissions();
249
250	self::save_data();//Save initial Page
251	update_option('tutor_version', TUTOR_VERSION);
252	}
253
254	//Set Schedule
255	if (! wp_next_scheduled ( 'tutor_once_in_day_run_schedule' )) {
256	wp_schedule_event(tutor_time(), 'twicedaily', 'tutor_once_in_day_run_schedule');
257	}
258
259	/**
260	* Backward Compatibility for version < 1.2.0
261	*/
262	if (version_compare(get_option('tutor_version'), '1.2.0', '<')){
263	/**
264	* Creating New Database
265	*/
266	self::create_withdraw_database();
267	//Update the tutor version
268	update_option('tutor_version', '1.2.0');
269	//Rewrite Flush
270	update_option('required_rewrite_flush', tutor_time());
271	}
272
273	/**
274	* Backward Compatibility to < 1.3.1 for make course plural
275	*/
276	if (version_compare(get_option('tutor_version'), '1.3.1', '<')){
277	global $wpdb;
278
279	if ( ! get_option('is_course_post_type_updated')){
280	$wpdb->update($wpdb->posts, array('post_type' => 'courses'), array('post_type' => 'course'));
281	update_option('is_course_post_type_updated', true);
282	update_option('tutor_version', '1.3.1');
283	flush_rewrite_rules();
284	}
285	}
286
287	/**
288	* Save First activation Time
289	*/
290	$first_activation_date = get_option('tutor_first_activation_time');
291	if ( ! $first_activation_date){
292	update_option('tutor_first_activation_time', tutor_time());
293	}
294	}
295
296	//Run task on deactivation
297	public static function tutor_deactivation() {
298	wp_clear_scheduled_hook('tutor_once_in_day_run_schedule');
299	}
300
301	public static function create_database(){
302	global $wpdb;
303
304	$charset_collate = $wpdb->get_charset_collate();
305
306	/**
307	* Table SQL
308	*
309	* {$wpdb->prefix}tutor_quiz_attempts
310	* {$wpdb->prefix}tutor_quiz_attempt_answers
311	* {$wpdb->prefix}tutor_quiz_questions
312	* {$wpdb->prefix}tutor_quiz_question_answers
313	* {$wpdb->prefix}tutor_earnings
314	* {$wpdb->prefix}tutor_withdraws
315	*
316	* @since v.1.0.0
317	*/
318	$quiz_attempts_sql = "CREATE TABLE {$wpdb->prefix}tutor_quiz_attempts (
319	attempt_id int(11) NOT NULL AUTO_INCREMENT,
320	course_id int(11) DEFAULT NULL,
321	quiz_id int(11) DEFAULT NULL,
322	user_id int(11) DEFAULT NULL,
323	total_questions int(11) DEFAULT NULL,
324	total_answered_questions int(11) DEFAULT NULL,
325	total_marks decimal(9,2) DEFAULT NULL,
326	earned_marks decimal(9,2) DEFAULT NULL,
327	attempt_info text,
328	attempt_status varchar(50) DEFAULT NULL,
329	attempt_ip varchar(250) DEFAULT NULL,
330	attempt_started_at datetime DEFAULT NULL,
331	attempt_ended_at datetime DEFAULT NULL,
332	is_manually_reviewed int(1) DEFAULT NULL,
333	manually_reviewed_at datetime DEFAULT NULL,
334	PRIMARY KEY (attempt_id)
335	) $charset_collate;";
336
337	$quiz_attempt_answers = "CREATE TABLE {$wpdb->prefix}tutor_quiz_attempt_answers (
338	attempt_answer_id int(11) NOT NULL AUTO_INCREMENT,
339	user_id int(11) DEFAULT NULL,
340	quiz_id int(11) DEFAULT NULL,
341	question_id int(11) DEFAULT NULL,
342	quiz_attempt_id int(11) DEFAULT NULL,
343	given_answer longtext,
344	question_mark decimal(8,2) DEFAULT NULL,
345	achieved_mark decimal(8,2) DEFAULT NULL,
346	minus_mark decimal(8,2) DEFAULT NULL,
347	is_correct tinyint(4) DEFAULT NULL,
348	PRIMARY KEY (attempt_answer_id)
349	) $charset_collate;";
350
351	$tutor_quiz_questions = "CREATE TABLE {$wpdb->prefix}tutor_quiz_questions (
352	question_id int(11) NOT NULL AUTO_INCREMENT,
353	quiz_id int(11) DEFAULT NULL,
354	question_title text,
355	question_description longtext,
356	question_type varchar(50) DEFAULT NULL,
357	question_mark decimal(9,2) DEFAULT NULL,
358	question_settings longtext,
359	question_order int(11) DEFAULT NULL,
360	PRIMARY KEY (question_id)
361	) $charset_collate;";
362
363	$tutor_quiz_question_answers = "CREATE TABLE {$wpdb->prefix}tutor_quiz_question_answers (
364	answer_id int(11) NOT NULL AUTO_INCREMENT,
365	belongs_question_id int(11) DEFAULT NULL,
366	belongs_question_type varchar(250) DEFAULT NULL,
367	answer_title text,
368	is_correct tinyint(4) DEFAULT NULL,
369	image_id int(11) DEFAULT NULL,
370	answer_two_gap_match text,
371	answer_view_format varchar(250) DEFAULT NULL,
372	answer_settings text,
373	answer_order int(11) DEFAULT '0',
374	PRIMARY KEY (answer_id)
375	) $charset_collate;";
376
377	$earning_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_earnings (
378	earning_id int(11) NOT NULL AUTO_INCREMENT,
379	user_id int(11) DEFAULT NULL,
380	course_id int(11) DEFAULT NULL,
381	order_id int(11) DEFAULT NULL,
382	order_status varchar(50) DEFAULT NULL,
383	course_price_total decimal(16,2) DEFAULT NULL,
384	course_price_grand_total decimal(16,2) DEFAULT NULL,
385	instructor_amount decimal(16,2) DEFAULT NULL,
386	instructor_rate decimal(16,2) DEFAULT NULL,
387	admin_amount decimal(16,2) DEFAULT NULL,
388	admin_rate decimal(16,2) DEFAULT NULL,
389	commission_type varchar(20) DEFAULT NULL,
390	deduct_fees_amount decimal(16,2) DEFAULT NULL,
391	deduct_fees_name varchar(250) DEFAULT NULL,
392	deduct_fees_type varchar(20) DEFAULT NULL,
393	process_by varchar(20) DEFAULT NULL,
394	created_at datetime DEFAULT NULL,
395	PRIMARY KEY (earning_id)
396	) $charset_collate;";
397
398	$withdraw_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_withdraws (
399	withdraw_id int(11) NOT NULL AUTO_INCREMENT,
400	user_id int(11) DEFAULT NULL,
401	amount decimal(16,2) DEFAULT NULL,
402	method_data text DEFAULT NULL,
403	status varchar(50) DEFAULT NULL,
404	updated_at datetime DEFAULT NULL,
405	created_at datetime DEFAULT NULL,
406	PRIMARY KEY (withdraw_id)
407	) $charset_collate;";
408
409	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
410	dbDelta( $quiz_attempts_sql );
411	dbDelta( $quiz_attempt_answers );
412	dbDelta( $tutor_quiz_questions );
413	dbDelta( $tutor_quiz_question_answers );
414	dbDelta( $earning_table );
415	dbDelta( $withdraw_table );
416	}
417
418	public static function manage_tutor_roles_and_permissions(){
419	/**
420	* Add role for instructor
421	*/
422	$instructor_role = tutor()->instructor_role;
423
424	remove_role($instructor_role);
425	add_role( $instructor_role, __('Tutor Instructor', 'tutor'), array() );
426
427	$custom_post_type_permission = array(
428	//Manage Instructor
429	'manage_tutor_instructor',
430
431	//Tutor Posts Type Permission
432	'edit_tutor_course',
433	'read_tutor_course',
434	'delete_tutor_course',
435	'delete_tutor_courses',
436	'edit_tutor_courses',
437	'edit_others_tutor_courses',
438	'read_private_tutor_courses',
439	'edit_tutor_courses',
440
441	'edit_tutor_lesson',
442	'read_tutor_lesson',
443	'delete_tutor_lesson',
444	'delete_tutor_lessons',
445	'edit_tutor_lessons',
446	'edit_others_tutor_lessons',
447	'read_private_tutor_lessons',
448	'edit_tutor_lessons',
449	'publish_tutor_lessons',
450
451	'edit_tutor_quiz',
452	'read_tutor_quiz',
453	'delete_tutor_quiz',
454	'delete_tutor_quizzes',
455	'edit_tutor_quizzes',
456	'edit_others_tutor_quizzes',
457	'read_private_tutor_quizzes',
458	'edit_tutor_quizzes',
459	'publish_tutor_quizzes',
460
461	'edit_tutor_question',
462	'read_tutor_question',
463	'delete_tutor_question',
464	'delete_tutor_questions',
465	'edit_tutor_questions',
466	'edit_others_tutor_questions',
467	'publish_tutor_questions',
468	'read_private_tutor_questions',
469	'edit_tutor_questions',
470	);
471
472	$instructor = get_role( $instructor_role );
473	if ( $instructor ) {
474	$instructor_cap = array (
475	'edit_posts',
476	'read',
477	'upload_files',
478	);
479
480	$instructor_cap = array_merge($instructor_cap, $custom_post_type_permission);
481
482	$can_publish_course = (bool) tutor_utils()->get_option('instructor_can_publish_course');
483	if ($can_publish_course){
484	$instructor_cap[] = 'publish_tutor_courses';
485	}
486
487	foreach ($instructor_cap as $cap){
488	$instructor->add_cap( $cap );
489	}
490	}
491
492	$administrator = get_role( 'administrator' );
493	if ( $administrator ) {
494
495	$administrator_cap = array (
496	'manage_tutor',
497	);
498	$administrator_cap = array_merge($administrator_cap, $custom_post_type_permission);
499	$administrator_cap[] = 'publish_tutor_courses';
500
501	foreach ($administrator_cap as $cap){
502	$administrator->add_cap( $cap );
503	}
504	}
505
506	/**
507	* Add Instructor role to administrator
508	*/
509	if (current_user_can('administrator')){
510	tutor_utils()->add_instructor_role(get_current_user_id());
511	}
512
513	}
514
515	/**
516	* Save data like page
517	*/
518	public static function save_data(){
519	$student_dashboard_args = array(
520	'post_title' => __('Dashboard', 'tutor'),
521	'post_content' => '',
522	'post_type' => 'page',
523	'post_status' => 'publish',
524	);
525	$student_dashboard_page_id = wp_insert_post( $student_dashboard_args );
526	tutor_utils()->update_option('tutor_dashboard_page_id', $student_dashboard_page_id);
527
528	$student_registration_args = array(
529	'post_title' => __('Student Registration', 'tutor'),
530	'post_content' => '[tutor_student_registration_form]',
531	'post_type' => 'page',
532	'post_status' => 'publish',
533	);
534	$student_register_page_id = wp_insert_post( $student_registration_args );
535	tutor_utils()->update_option('student_register_page', $student_register_page_id);
536
537	$instructor_registration_args = array(
538	'post_title' => __('Instructor Registration', 'tutor'),
539	'post_content' => '[tutor_instructor_registration_form]',
540	'post_type' => 'page',
541	'post_status' => 'publish',
542	);
543	$instructor_registration_id = wp_insert_post( $instructor_registration_args );
544	tutor_utils()->update_option('instructor_register_page', $instructor_registration_id);
545	}
546
547	public static function default_options(){
548	$options = array (
549	'pagination_per_page' => '20',
550	'load_tutor_css' => '1',
551	'load_tutor_js' => '1',
552	'course_allow_upload_private_files' => '1',
553	'display_course_instructors' => '1',
554	'enable_q_and_a_on_course' => '1',
555	'courses_col_per_row' => '3',
556	'courses_per_page' => '3',
557	'lesson_permalink_base' => 'lesson',
558	'quiz_time_limit' =>
559	array (
560	'value' => '0',
561	'time' => 'minutes',
562	),
563	'quiz_when_time_expires' => 'autosubmit',
564	'quiz_attempts_allowed' => '10',
565	'quiz_grade_method' => 'highest_grade',
566	'enable_public_profile' => '1',
567	'email_to_students' =>
568	array (
569	'quiz_completed' => '1',
570	'completed_course' => '1',
571	),
572	'email_to_instructors' =>
573	array (
574	'a_student_enrolled_in_course' => '1',
575	'a_student_completed_course' => '1',
576	'a_student_completed_lesson' => '1',
577	'a_student_placed_question' => '1',
578	),
579	'email_from_name' => get_option('blogname'),
580	'email_from_address' => get_option('admin_email'),
581	'email_footer_text' => '',
582	'earning_admin_commission' => '20',
583	'earning_admin_commission' => '20',
584	'earning_instructor_commission' => '80'
585	);
586	return $options;
587	}
588
589
590	/**
591	* Create withdraw database
592	*
593	* @since v.1.2.0
594	*/
595	public static function create_withdraw_database(){
596	global $wpdb;
597
598	$charset_collate = $wpdb->get_charset_collate();
599
600	/**
601	* Table SQL
602	*
603	* {$wpdb->prefix}tutor_earnings
604	* {$wpdb->prefix}tutor_withdraws
605	*
606	* @since v.1.2.0
607	*/
608
609	$earning_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_earnings (
610	earning_id int(11) NOT NULL AUTO_INCREMENT,
611	user_id int(11) DEFAULT NULL,
612	course_id int(11) DEFAULT NULL,
613	order_id int(11) DEFAULT NULL,
614	order_status varchar(50) DEFAULT NULL,
615	course_price_total decimal(16,2) DEFAULT NULL,
616	course_price_grand_total decimal(16,2) DEFAULT NULL,
617	instructor_amount decimal(16,2) DEFAULT NULL,
618	instructor_rate decimal(16,2) DEFAULT NULL,
619	admin_amount decimal(16,2) DEFAULT NULL,
620	admin_rate decimal(16,2) DEFAULT NULL,
621	commission_type varchar(20) DEFAULT NULL,
622	deduct_fees_amount decimal(16,2) DEFAULT NULL,
623	deduct_fees_name varchar(250) DEFAULT NULL,
624	deduct_fees_type varchar(20) DEFAULT NULL,
625	process_by varchar(20) DEFAULT NULL,
626	created_at datetime DEFAULT NULL,
627	PRIMARY KEY (earning_id)
628	) $charset_collate;";
629
630	$withdraw_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_withdraws (
631	withdraw_id int(11) NOT NULL AUTO_INCREMENT,
632	user_id int(11) DEFAULT NULL,
633	amount decimal(16,2) DEFAULT NULL,
634	method_data text DEFAULT NULL,
635	status varchar(50) DEFAULT NULL,
636	updated_at datetime DEFAULT NULL,
637	created_at datetime DEFAULT NULL,
638	PRIMARY KEY (withdraw_id)
639	) $charset_collate;";
640
641	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
642	dbDelta( $earning_table );
643	dbDelta( $withdraw_table );
644
645	/**
646	* Setting previous dashboard to new dashboard
647	*/
648	$previous_dashboard_page_id = (int) tutor_utils()->get_option('student_dashboard');
649	tutor_utils()->update_option('tutor_dashboard_page_id', $previous_dashboard_page_id);
650	}
651
652	/**
653	* @param $bool
654	*
655	* @return bool
656	*
657	* Filter the wp_doing_ajax from tutor requests to get advanced advantages from Tutor
658	*
659	* @since v.1.3.4
660	*/
661	public function wp_doing_ajax($bool){
662	if (isset($_REQUEST['tutor_ajax_action'])){
663	return true;
664	}
665	return $bool;
666	}
667
668
669	}