Tutor.php — Tutor LMS – eLearning and online course solution 1.9.12

tutor / classes / Tutor.php

tutor / classes Last commit date

Addons.php 4 years ago Admin.php 4 years ago Ajax.php 4 years ago Assets.php 4 years ago Course.php 4 years ago Course_Filter.php 4 years ago Course_Settings_Tabs.php 5 years ago Course_Widget.php 5 years ago Custom_Validation.php 5 years ago Dashboard.php 4 years ago Email.php 5 years ago FormHandler.php 5 years ago Frontend.php 5 years ago Gutenberg.php 4 years ago Instructor.php 4 years ago Instructors_List.php 4 years ago Lesson.php 4 years ago Options.php 4 years ago Post_types.php 4 years ago Private_Course_Access.php 5 years ago Q_and_A.php 5 years ago Question_Answers_List.php 4 years ago Quiz.php 4 years ago Quiz_Attempts_List.php 4 years ago RestAPI.php 4 years ago Rewrite_Rules.php 4 years ago Shortcode.php 4 years ago Student.php 4 years ago Students_List.php 4 years ago Taxonomies.php 5 years ago Template.php 4 years ago Theme_Compatibility.php 5 years ago Tools.php 4 years ago Tutor.php 4 years ago TutorEDD.php 5 years ago Tutor_Base.php 5 years ago Tutor_List_Table.php 4 years ago Tutor_Setup.php 4 years ago Upgrader.php 5 years ago User.php 4 years ago Utils.php 4 years ago Video_Stream.php 5 years ago Withdraw.php 5 years ago Withdraw_Requests_List.php 4 years ago WooCommerce.php 4 years ago

Tutor.php

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