Tutor.php — Tutor LMS – eLearning and online course solution 1.7.4

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 Delete_Enrollment_With_Order.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

670 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	$this->delete_enrollment = new Delete_Enrollment_With_Order();
146
147	//Integrations
148	$this->woocommerce = new WooCommerce();
149	$this->edd = new TutorEDD();
150
151	/**
152	* Run Method
153	* @since v.1.2.0
154	*/
155	$this->run();
156
157	do_action('tutor_loaded');
158
159	add_action( 'init', array( $this, 'init_action' ) );
160
161	/**
162	* redirect to the wizard page
163	* @since v.1.5.7
164	*
165	*/
166
167	add_action( 'activated_plugin', array( $this, 'activated_tutor' ) );
168	}
169
170	/**
171	* @param $plugin
172	*
173	* redirect to the wizard page
174	* @since v.1.5.7
175	*
176	*/
177	public function activated_tutor( $plugin ) {
178	if( $plugin == tutor()->basename ) {
179	if( (! get_option('tutor_wizard') ) && version_compare(TUTOR_VERSION, '1.5.6', '>') ) {
180	update_option('tutor_wizard', 'active');
181	exit(wp_redirect(admin_url('admin.php?page=tutor-setup')));
182	}
183	}
184	}
185
186	/**
187	* @param $className
188	*
189	* Auto Load class and the files
190	*/
191	private function loader($className) {
192	if ( ! class_exists($className)){
193	$className = preg_replace(
194	array('/([a-z])([A-Z])/', '/\\\/'),
195	array('$1$2', DIRECTORY_SEPARATOR),
196	$className
197	);
198
199	$className = str_replace('TUTOR'.DIRECTORY_SEPARATOR, 'classes'.DIRECTORY_SEPARATOR, $className);
200	$file_name = $this->path.$className.'.php';
201
202	if (file_exists($file_name) ) {
203	require_once $file_name;
204	}
205	}
206	}
207
208	public function includes(){
209	include tutor()->path.'includes/tutor-general-functions.php';
210	include tutor()->path.'includes/tutor-template-functions.php';
211	include tutor()->path.'includes/tutor-template-hook.php';
212	}
213
214	//Run the TUTOR right now
215	public function run(){
216	do_action('tutor_before_run');
217
218	do_action('tutor_after_run');
219	}
220
221	/**
222	* Tutor Action Via do_action
223	* @since 1.2.14
224	*/
225	public function init_action(){
226	if (isset($_REQUEST['tutor_action'])){
227	do_action('tutor_action_'.$_REQUEST['tutor_action']);
228	}
229	}
230
231	/**
232	* Do some task during plugin activation
233	*/
234	public static function tutor_activate(){
235	$version = get_option('tutor_version');
236	if ( ! function_exists('tutor_time')){
237	include tutor()->path.'includes/tutor-general-functions.php';
238	}
239	//Save Option
240	if ( ! $version ){
241	//Create Database
242	self::create_database();
243
244	$options = self::default_options();
245	update_option('tutor_option', $options);
246
247	//Rewrite Flush
248	update_option('required_rewrite_flush', tutor_time());
249	self::manage_tutor_roles_and_permissions();
250
251	self::save_data();//Save initial Page
252	update_option('tutor_version', TUTOR_VERSION);
253	}
254
255	//Set Schedule
256	if (! wp_next_scheduled ( 'tutor_once_in_day_run_schedule' )) {
257	wp_schedule_event(tutor_time(), 'twicedaily', 'tutor_once_in_day_run_schedule');
258	}
259
260	/**
261	* Backward Compatibility for version < 1.2.0
262	*/
263	if (version_compare(get_option('tutor_version'), '1.2.0', '<')){
264	/**
265	* Creating New Database
266	*/
267	self::create_withdraw_database();
268	//Update the tutor version
269	update_option('tutor_version', '1.2.0');
270	//Rewrite Flush
271	update_option('required_rewrite_flush', tutor_time());
272	}
273
274	/**
275	* Backward Compatibility to < 1.3.1 for make course plural
276	*/
277	if (version_compare(get_option('tutor_version'), '1.3.1', '<')){
278	global $wpdb;
279
280	if ( ! get_option('is_course_post_type_updated')){
281	$wpdb->update($wpdb->posts, array('post_type' => 'courses'), array('post_type' => 'course'));
282	update_option('is_course_post_type_updated', true);
283	update_option('tutor_version', '1.3.1');
284	flush_rewrite_rules();
285	}
286	}
287
288	/**
289	* Save First activation Time
290	*/
291	$first_activation_date = get_option('tutor_first_activation_time');
292	if ( ! $first_activation_date){
293	update_option('tutor_first_activation_time', tutor_time());
294	}
295	}
296
297	//Run task on deactivation
298	public static function tutor_deactivation() {
299	wp_clear_scheduled_hook('tutor_once_in_day_run_schedule');
300	}
301
302	public static function create_database(){
303	global $wpdb;
304
305	$charset_collate = $wpdb->get_charset_collate();
306
307	/**
308	* Table SQL
309	*
310	* {$wpdb->prefix}tutor_quiz_attempts
311	* {$wpdb->prefix}tutor_quiz_attempt_answers
312	* {$wpdb->prefix}tutor_quiz_questions
313	* {$wpdb->prefix}tutor_quiz_question_answers
314	* {$wpdb->prefix}tutor_earnings
315	* {$wpdb->prefix}tutor_withdraws
316	*
317	* @since v.1.0.0
318	*/
319	$quiz_attempts_sql = "CREATE TABLE {$wpdb->prefix}tutor_quiz_attempts (
320	attempt_id int(11) NOT NULL AUTO_INCREMENT,
321	course_id int(11) DEFAULT NULL,
322	quiz_id int(11) DEFAULT NULL,
323	user_id int(11) DEFAULT NULL,
324	total_questions int(11) DEFAULT NULL,
325	total_answered_questions int(11) DEFAULT NULL,
326	total_marks decimal(9,2) DEFAULT NULL,
327	earned_marks decimal(9,2) DEFAULT NULL,
328	attempt_info text,
329	attempt_status varchar(50) DEFAULT NULL,
330	attempt_ip varchar(250) DEFAULT NULL,
331	attempt_started_at datetime DEFAULT NULL,
332	attempt_ended_at datetime DEFAULT NULL,
333	is_manually_reviewed int(1) DEFAULT NULL,
334	manually_reviewed_at datetime DEFAULT NULL,
335	PRIMARY KEY (attempt_id)
336	) $charset_collate;";
337
338	$quiz_attempt_answers = "CREATE TABLE {$wpdb->prefix}tutor_quiz_attempt_answers (
339	attempt_answer_id int(11) NOT NULL AUTO_INCREMENT,
340	user_id int(11) DEFAULT NULL,
341	quiz_id int(11) DEFAULT NULL,
342	question_id int(11) DEFAULT NULL,
343	quiz_attempt_id int(11) DEFAULT NULL,
344	given_answer longtext,
345	question_mark decimal(8,2) DEFAULT NULL,
346	achieved_mark decimal(8,2) DEFAULT NULL,
347	minus_mark decimal(8,2) DEFAULT NULL,
348	is_correct tinyint(4) DEFAULT NULL,
349	PRIMARY KEY (attempt_answer_id)
350	) $charset_collate;";
351
352	$tutor_quiz_questions = "CREATE TABLE {$wpdb->prefix}tutor_quiz_questions (
353	question_id int(11) NOT NULL AUTO_INCREMENT,
354	quiz_id int(11) DEFAULT NULL,
355	question_title text,
356	question_description longtext,
357	question_type varchar(50) DEFAULT NULL,
358	question_mark decimal(9,2) DEFAULT NULL,
359	question_settings longtext,
360	question_order int(11) DEFAULT NULL,
361	PRIMARY KEY (question_id)
362	) $charset_collate;";
363
364	$tutor_quiz_question_answers = "CREATE TABLE {$wpdb->prefix}tutor_quiz_question_answers (
365	answer_id int(11) NOT NULL AUTO_INCREMENT,
366	belongs_question_id int(11) DEFAULT NULL,
367	belongs_question_type varchar(250) DEFAULT NULL,
368	answer_title text,
369	is_correct tinyint(4) DEFAULT NULL,
370	image_id int(11) DEFAULT NULL,
371	answer_two_gap_match text,
372	answer_view_format varchar(250) DEFAULT NULL,
373	answer_settings text,
374	answer_order int(11) DEFAULT '0',
375	PRIMARY KEY (answer_id)
376	) $charset_collate;";
377
378	$earning_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_earnings (
379	earning_id int(11) NOT NULL AUTO_INCREMENT,
380	user_id int(11) DEFAULT NULL,
381	course_id int(11) DEFAULT NULL,
382	order_id int(11) DEFAULT NULL,
383	order_status varchar(50) DEFAULT NULL,
384	course_price_total decimal(16,2) DEFAULT NULL,
385	course_price_grand_total decimal(16,2) DEFAULT NULL,
386	instructor_amount decimal(16,2) DEFAULT NULL,
387	instructor_rate decimal(16,2) DEFAULT NULL,
388	admin_amount decimal(16,2) DEFAULT NULL,
389	admin_rate decimal(16,2) DEFAULT NULL,
390	commission_type varchar(20) DEFAULT NULL,
391	deduct_fees_amount decimal(16,2) DEFAULT NULL,
392	deduct_fees_name varchar(250) DEFAULT NULL,
393	deduct_fees_type varchar(20) DEFAULT NULL,
394	process_by varchar(20) DEFAULT NULL,
395	created_at datetime DEFAULT NULL,
396	PRIMARY KEY (earning_id)
397	) $charset_collate;";
398
399	$withdraw_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_withdraws (
400	withdraw_id int(11) NOT NULL AUTO_INCREMENT,
401	user_id int(11) DEFAULT NULL,
402	amount decimal(16,2) DEFAULT NULL,
403	method_data text DEFAULT NULL,
404	status varchar(50) DEFAULT NULL,
405	updated_at datetime DEFAULT NULL,
406	created_at datetime DEFAULT NULL,
407	PRIMARY KEY (withdraw_id)
408	) $charset_collate;";
409
410	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
411	dbDelta( $quiz_attempts_sql );
412	dbDelta( $quiz_attempt_answers );
413	dbDelta( $tutor_quiz_questions );
414	dbDelta( $tutor_quiz_question_answers );
415	dbDelta( $earning_table );
416	dbDelta( $withdraw_table );
417	}
418
419	public static function manage_tutor_roles_and_permissions(){
420	/**
421	* Add role for instructor
422	*/
423	$instructor_role = tutor()->instructor_role;
424
425	remove_role($instructor_role);
426	add_role( $instructor_role, __('Tutor Instructor', 'tutor'), array() );
427
428	$custom_post_type_permission = array(
429	//Manage Instructor
430	'manage_tutor_instructor',
431
432	//Tutor Posts Type Permission
433	'edit_tutor_course',
434	'read_tutor_course',
435	'delete_tutor_course',
436	'delete_tutor_courses',
437	'edit_tutor_courses',
438	'edit_others_tutor_courses',
439	'read_private_tutor_courses',
440	'edit_tutor_courses',
441
442	'edit_tutor_lesson',
443	'read_tutor_lesson',
444	'delete_tutor_lesson',
445	'delete_tutor_lessons',
446	'edit_tutor_lessons',
447	'edit_others_tutor_lessons',
448	'read_private_tutor_lessons',
449	'edit_tutor_lessons',
450	'publish_tutor_lessons',
451
452	'edit_tutor_quiz',
453	'read_tutor_quiz',
454	'delete_tutor_quiz',
455	'delete_tutor_quizzes',
456	'edit_tutor_quizzes',
457	'edit_others_tutor_quizzes',
458	'read_private_tutor_quizzes',
459	'edit_tutor_quizzes',
460	'publish_tutor_quizzes',
461
462	'edit_tutor_question',
463	'read_tutor_question',
464	'delete_tutor_question',
465	'delete_tutor_questions',
466	'edit_tutor_questions',
467	'edit_others_tutor_questions',
468	'publish_tutor_questions',
469	'read_private_tutor_questions',
470	'edit_tutor_questions',
471	);
472
473	$instructor = get_role( $instructor_role );
474	if ( $instructor ) {
475	$instructor_cap = array (
476	'edit_posts',
477	'read',
478	'upload_files',
479	);
480
481	$instructor_cap = array_merge($instructor_cap, $custom_post_type_permission);
482
483	$can_publish_course = (bool) tutor_utils()->get_option('instructor_can_publish_course');
484	if ($can_publish_course){
485	$instructor_cap[] = 'publish_tutor_courses';
486	}
487
488	foreach ($instructor_cap as $cap){
489	$instructor->add_cap( $cap );
490	}
491	}
492
493	$administrator = get_role( 'administrator' );
494	if ( $administrator ) {
495
496	$administrator_cap = array (
497	'manage_tutor',
498	);
499	$administrator_cap = array_merge($administrator_cap, $custom_post_type_permission);
500	$administrator_cap[] = 'publish_tutor_courses';
501
502	foreach ($administrator_cap as $cap){
503	$administrator->add_cap( $cap );
504	}
505	}
506
507	/**
508	* Add Instructor role to administrator
509	*/
510	if (current_user_can('administrator')){
511	tutor_utils()->add_instructor_role(get_current_user_id());
512	}
513
514	}
515
516	/**
517	* Save data like page
518	*/
519	public static function save_data(){
520	$student_dashboard_args = array(
521	'post_title' => __('Dashboard', 'tutor'),
522	'post_content' => '',
523	'post_type' => 'page',
524	'post_status' => 'publish',
525	);
526	$student_dashboard_page_id = wp_insert_post( $student_dashboard_args );
527	tutor_utils()->update_option('tutor_dashboard_page_id', $student_dashboard_page_id);
528
529	$student_registration_args = array(
530	'post_title' => __('Student Registration', 'tutor'),
531	'post_content' => '[tutor_student_registration_form]',
532	'post_type' => 'page',
533	'post_status' => 'publish',
534	);
535	$student_register_page_id = wp_insert_post( $student_registration_args );
536	tutor_utils()->update_option('student_register_page', $student_register_page_id);
537
538	$instructor_registration_args = array(
539	'post_title' => __('Instructor Registration', 'tutor'),
540	'post_content' => '[tutor_instructor_registration_form]',
541	'post_type' => 'page',
542	'post_status' => 'publish',
543	);
544	$instructor_registration_id = wp_insert_post( $instructor_registration_args );
545	tutor_utils()->update_option('instructor_register_page', $instructor_registration_id);
546	}
547
548	public static function default_options(){
549	$options = array (
550	'pagination_per_page' => '20',
551	'load_tutor_css' => '1',
552	'load_tutor_js' => '1',
553	'course_allow_upload_private_files' => '1',
554	'display_course_instructors' => '1',
555	'enable_q_and_a_on_course' => '1',
556	'courses_col_per_row' => '3',
557	'courses_per_page' => '3',
558	'lesson_permalink_base' => 'lesson',
559	'quiz_time_limit' =>
560	array (
561	'value' => '0',
562	'time' => 'minutes',
563	),
564	'quiz_when_time_expires' => 'autosubmit',
565	'quiz_attempts_allowed' => '10',
566	'quiz_grade_method' => 'highest_grade',
567	'enable_public_profile' => '1',
568	'email_to_students' =>
569	array (
570	'quiz_completed' => '1',
571	'completed_course' => '1',
572	),
573	'email_to_instructors' =>
574	array (
575	'a_student_enrolled_in_course' => '1',
576	'a_student_completed_course' => '1',
577	'a_student_completed_lesson' => '1',
578	'a_student_placed_question' => '1',
579	),
580	'email_from_name' => get_option('blogname'),
581	'email_from_address' => get_option('admin_email'),
582	'email_footer_text' => '',
583	'earning_admin_commission' => '20',
584	'earning_admin_commission' => '20',
585	'earning_instructor_commission' => '80'
586	);
587	return $options;
588	}
589
590
591	/**
592	* Create withdraw database
593	*
594	* @since v.1.2.0
595	*/
596	public static function create_withdraw_database(){
597	global $wpdb;
598
599	$charset_collate = $wpdb->get_charset_collate();
600
601	/**
602	* Table SQL
603	*
604	* {$wpdb->prefix}tutor_earnings
605	* {$wpdb->prefix}tutor_withdraws
606	*
607	* @since v.1.2.0
608	*/
609
610	$earning_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_earnings (
611	earning_id int(11) NOT NULL AUTO_INCREMENT,
612	user_id int(11) DEFAULT NULL,
613	course_id int(11) DEFAULT NULL,
614	order_id int(11) DEFAULT NULL,
615	order_status varchar(50) DEFAULT NULL,
616	course_price_total decimal(16,2) DEFAULT NULL,
617	course_price_grand_total decimal(16,2) DEFAULT NULL,
618	instructor_amount decimal(16,2) DEFAULT NULL,
619	instructor_rate decimal(16,2) DEFAULT NULL,
620	admin_amount decimal(16,2) DEFAULT NULL,
621	admin_rate decimal(16,2) DEFAULT NULL,
622	commission_type varchar(20) DEFAULT NULL,
623	deduct_fees_amount decimal(16,2) DEFAULT NULL,
624	deduct_fees_name varchar(250) DEFAULT NULL,
625	deduct_fees_type varchar(20) DEFAULT NULL,
626	process_by varchar(20) DEFAULT NULL,
627	created_at datetime DEFAULT NULL,
628	PRIMARY KEY (earning_id)
629	) $charset_collate;";
630
631	$withdraw_table = "CREATE TABLE IF NOT EXISTS {$wpdb->prefix}tutor_withdraws (
632	withdraw_id int(11) NOT NULL AUTO_INCREMENT,
633	user_id int(11) DEFAULT NULL,
634	amount decimal(16,2) DEFAULT NULL,
635	method_data text DEFAULT NULL,
636	status varchar(50) DEFAULT NULL,
637	updated_at datetime DEFAULT NULL,
638	created_at datetime DEFAULT NULL,
639	PRIMARY KEY (withdraw_id)
640	) $charset_collate;";
641
642	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
643	dbDelta( $earning_table );
644	dbDelta( $withdraw_table );
645
646	/**
647	* Setting previous dashboard to new dashboard
648	*/
649	$previous_dashboard_page_id = (int) tutor_utils()->get_option('student_dashboard');
650	tutor_utils()->update_option('tutor_dashboard_page_id', $previous_dashboard_page_id);
651	}
652
653	/**
654	* @param $bool
655	*
656	* @return bool
657	*
658	* Filter the wp_doing_ajax from tutor requests to get advanced advantages from Tutor
659	*
660	* @since v.1.3.4
661	*/
662	public function wp_doing_ajax($bool){
663	if (isset($_REQUEST['tutor_ajax_action'])){
664	return true;
665	}
666	return $bool;
667	}
668
669
670	}