Ajax.php — Tutor LMS – eLearning and online course solution 2.6.2

tutor / classes / Ajax.php

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Addons.php 2 years ago Admin.php 2 years ago Ajax.php 2 years ago Announcements.php 3 years ago Assets.php 2 years ago Backend_Page_Trait.php 3 years ago Course.php 2 years ago Course_Embed.php 3 years ago Course_Filter.php 2 years ago Course_List.php 2 years ago Course_Settings_Tabs.php 3 years ago Course_Widget.php 3 years ago Custom_Validation.php 3 years ago Dashboard.php 3 years ago FormHandler.php 2 years ago Frontend.php 2 years ago Gutenberg.php 3 years ago Input.php 3 years ago Instructor.php 2 years ago Instructors_List.php 2 years ago Lesson.php 2 years ago Options_V2.php 2 years ago Permalink.php 2 years ago Post_types.php 2 years ago Private_Course_Access.php 3 years ago Q_and_A.php 2 years ago Question_Answers_List.php 3 years ago Quiz.php 2 years ago Quiz_Attempts_List.php 3 years ago RestAPI.php 2 years ago Reviews.php 3 years ago Rewrite_Rules.php 2 years ago Shortcode.php 2 years ago Student.php 2 years ago Students_List.php 3 years ago Taxonomies.php 3 years ago Template.php 3 years ago Theme_Compatibility.php 3 years ago Tools.php 3 years ago Tools_V2.php 3 years ago Tutor.php 2 years ago TutorEDD.php 2 years ago Tutor_Base.php 2 years ago Tutor_Setup.php 2 years ago Upgrader.php 2 years ago User.php 2 years ago Utils.php 2 years ago Video_Stream.php 3 years ago WhatsNew.php 2 years ago Withdraw.php 2 years ago Withdraw_Requests_List.php 3 years ago WooCommerce.php 2 years ago

Ajax.php

746 lines

1	<?php
2	/**
3	* Handle Ajax Request
4	*
5	* @package Tutor
6	* @author Themeum <support@themeum.com>
7	* @link https://themeum.com
8	* @since 1.0.0
9	*/
10
11	namespace TUTOR;
12
13	if ( ! defined( 'ABSPATH' ) ) {
14	exit;
15	}
16
17	use Tutor\Models\LessonModel;
18
19	/**
20	* Ajax Class
21	*
22	* @since 1.0.0
23	*/
24	class Ajax {
25
26	const LOGIN_ERRORS_TRANSIENT_KEY = 'tutor_login_errors';
27	/**
28	* Constructor
29	*
30	* @since 1.0.0
31	* @since 2.6.2 added allow_hooks param.
32	*
33	* @param bool $allow_hooks default value true.
34	*
35	* @return void
36	*/
37	public function __construct( $allow_hooks = true ) {
38	if ( $allow_hooks ) {
39	add_action( 'wp_ajax_sync_video_playback', array( $this, 'sync_video_playback' ) );
40	add_action( 'wp_ajax_nopriv_sync_video_playback', array( $this, 'sync_video_playback_noprev' ) );
41	add_action( 'wp_ajax_tutor_place_rating', array( $this, 'tutor_place_rating' ) );
42	add_action( 'wp_ajax_delete_tutor_review', array( $this, 'delete_tutor_review' ) );
43
44	add_action( 'wp_ajax_tutor_course_add_to_wishlist', array( $this, 'tutor_course_add_to_wishlist' ) );
45	add_action( 'wp_ajax_nopriv_tutor_course_add_to_wishlist', array( $this, 'tutor_course_add_to_wishlist' ) );
46
47	/**
48	* Get all addons
49	*/
50	add_action( 'wp_ajax_tutor_get_all_addons', array( $this, 'tutor_get_all_addons' ) );
51
52	/**
53	* Addon Enable Disable Control
54	*/
55	add_action( 'wp_ajax_addon_enable_disable', array( $this, 'addon_enable_disable' ) );
56
57	/**
58	* Ajax login
59	*
60	* @since v.1.6.3
61	*/
62	add_action( 'tutor_action_tutor_user_login', array( $this, 'process_tutor_login' ) );
63
64	/**
65	* Announcement
66	*
67	* @since v.1.7.9
68	*/
69	add_action( 'wp_ajax_tutor_announcement_create', array( $this, 'create_or_update_annoucement' ) );
70	add_action( 'wp_ajax_tutor_announcement_delete', array( $this, 'delete_annoucement' ) );
71	}
72	}
73
74
75
76	/**
77	* Update video information and data when necessary
78	*
79	* @since 1.0.0
80	* @return void
81	*/
82	public function sync_video_playback() {
83	tutor_utils()->checking_nonce();
84
85	$user_id = get_current_user_id();
86	$post_id = Input::post( 'post_id', 0, Input::TYPE_INT );
87	$duration = Input::post( 'duration' );
88	$current_time = Input::post( 'currentTime' );
89
90	if ( ! tutor_utils()->has_enrolled_content_access( 'lesson', $post_id ) ) {
91	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
92	exit;
93	}
94
95	/**
96	* Update posts attached video
97	*/
98	$video = tutor_utils()->get_video( $post_id );
99
100	if ( $duration ) {
101	$video['duration_sec'] = $duration; // Duration in sec.
102	$video['playtime'] = tutor_utils()->playtime_string( $duration );
103	$video['runtime'] = tutor_utils()->playtime_array( $duration );
104	}
105	tutor_utils()->update_video( $post_id, $video );
106
107	/**
108	* Sync Lesson Reading Info by Users
109	*/
110
111	$best_watch_time = tutor_utils()->get_lesson_reading_info( $post_id, $user_id, 'video_best_watched_time' );
112	if ( $best_watch_time < $current_time ) {
113	LessonModel::update_lesson_reading_info( $post_id, $user_id, 'video_best_watched_time', $current_time );
114	}
115
116	if ( Input::post( 'is_ended', false, Input::TYPE_BOOL ) ) {
117	LessonModel::mark_lesson_complete( $post_id );
118	}
119	exit();
120	}
121
122	/**
123	* Video playback callback for noprev
124	*
125	* @since 1.0.0
126	* @return void
127	*/
128	public function sync_video_playback_noprev() {
129	}
130
131	/**
132	* Place rating
133	*
134	* @since 1.0.0
135	* @return void
136	*/
137	public function tutor_place_rating() {
138	tutor_utils()->checking_nonce();
139
140	$user_id = get_current_user_id();
141	$course_id = Input::post( 'course_id' );
142	$rating = Input::post( 'tutor_rating_gen_input', 0, Input::TYPE_INT );
143	$review = Input::post( 'review', '', Input::TYPE_TEXTAREA );
144
145	$rating <= 0 ? $rating = 1 : 0;
146	$rating > 5 ? $rating = 5 : 0;
147
148	$this->add_or_update_review( $user_id, $course_id, $rating, $review );
149	}
150
151	/**
152	* Add/Update rating
153	*
154	* @param int $user_id the user id.
155	* @param int $course_id the course id.
156	* @param int $rating rating star number.
157	* @param string $review review description.
158	* @param int $review_id review id needed for api update.
159	*
160	* @return void\|string
161	*/
162	public function add_or_update_review( $user_id, $course_id, $rating, $review, $review_id = 0 ) {
163	global $wpdb;
164
165	$moderation = tutor_utils()->get_option( 'enable_course_review_moderation', false, true, true );
166	$user = get_userdata( $user_id );
167	$date = date( 'Y-m-d H:i:s', tutor_time() ); //phpcs:ignore
168
169	if ( ! tutor_is_rest() && ! tutor_utils()->has_enrolled_content_access( 'course', $course_id ) ) {
170	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
171	exit;
172	}
173
174	do_action( 'tutor_before_rating_placed' );
175
176	$is_edit = 0 === $review_id ? false : true;
177
178	if ( ! tutor_is_rest() ) {
179	$previous_rating_id = $wpdb->get_var(
180	$wpdb->prepare(
181	"SELECT comment_ID
182	from {$wpdb->comments}
183	WHERE comment_post_ID = %d AND
184	user_id = %d AND
185	comment_type = 'tutor_course_rating'
186	LIMIT 1;",
187	$course_id,
188	$user_id
189	)
190	);
191
192	if ( ! empty( $previous_rating_id ) ) {
193	$review_id = $previous_rating_id;
194	$is_edit = true;
195	}
196	}
197
198	if ( $is_edit ) {
199	$wpdb->update(
200	$wpdb->comments,
201	array(
202	'comment_content' => $review,
203	'comment_approved' => $moderation ? 'hold' : 'approved',
204	'comment_date' => $date,
205	'comment_date_gmt' => get_gmt_from_date( $date ),
206	),
207	array( 'comment_ID' => $review_id )
208	);
209
210	$rating_info = $wpdb->get_row(
211	$wpdb->prepare(
212	"SELECT * FROM {$wpdb->commentmeta}
213	WHERE comment_id = %d
214	AND meta_key = 'tutor_rating'; ",
215	$review_id
216	)
217	);
218
219	if ( $rating_info ) {
220	$wpdb->update(
221	$wpdb->commentmeta,
222	array( 'meta_value' => $rating ),
223	array(
224	'comment_id' => $review_id,
225	'meta_key' => 'tutor_rating',
226	)
227	);
228	} else {
229	$wpdb->insert(
230	$wpdb->commentmeta,
231	array(
232	'comment_id' => $review_id,
233	'meta_key' => 'tutor_rating',
234	'meta_value' => $rating,
235	)
236	);
237	}
238	} else {
239	$data = array(
240	'comment_post_ID' => esc_sql( $course_id ),
241	'comment_approved' => $moderation ? 'hold' : 'approved',
242	'comment_type' => 'tutor_course_rating',
243	'comment_date' => $date,
244	'comment_date_gmt' => get_gmt_from_date( $date ),
245	'user_id' => $user_id,
246	'comment_author' => $user->user_login,
247	'comment_agent' => 'TutorLMSPlugin',
248	);
249	if ( $review ) {
250	$data['comment_content'] = $review;
251	}
252
253	$wpdb->insert( $wpdb->comments, $data );
254	$comment_id = (int) $wpdb->insert_id;
255	$review_id = $comment_id;
256
257	if ( $comment_id ) {
258	$result = $wpdb->insert(
259	$wpdb->commentmeta,
260	array(
261	'comment_id' => $comment_id,
262	'meta_key' => 'tutor_rating',
263	'meta_value' => $rating,
264	)
265	);
266
267	do_action( 'tutor_after_rating_placed', $comment_id );
268	}
269	}
270
271	if ( ! tutor_is_rest() ) {
272	wp_send_json_success(
273	array(
274	'message' => __( 'Rating placed successsully!', 'tutor' ),
275	'review_id' => $review_id,
276	)
277	);
278	} else {
279	return $is_edit ? 'updated' : 'created';
280	}
281	}
282
283	/**
284	* Delete a review
285	*
286	* @since 1.0.0
287	* @since 2.6.2 added params user_id.
288	* @param int $user_id the user id.
289	* @return void\|bool
290	*/
291	public function delete_tutor_review( $user_id = 0 ) {
292	if ( ! tutor_is_rest() ) {
293	tutor_utils()->checking_nonce();
294	}
295
296	$review_id = Input::post( 'review_id' );
297
298	if ( ! tutor_utils()->can_user_manage( 'review', $review_id, tutils()->get_user_id( $user_id ) ) ) {
299	wp_send_json_error( array( 'message' => __( 'Permissioned Denied!', 'tutor' ) ) );
300	exit;
301	}
302
303	global $wpdb;
304	$wpdb->delete( $wpdb->commentmeta, array( 'comment_id' => $review_id ) );
305	$wpdb->delete( $wpdb->comments, array( 'comment_ID' => $review_id ) );
306
307	if ( tutor_is_rest() ) {
308	return true;
309	}
310
311	wp_send_json_success();
312	}
313
314	/**
315	* Add course in wishlist
316	*
317	* @since 1.0.0
318	* @return void\|string
319	*/
320	public function tutor_course_add_to_wishlist() {
321	tutor_utils()->checking_nonce();
322
323	// Redirect login since only logged in user can add courses to wishlist.
324	if ( ! is_user_logged_in() ) {
325	wp_send_json_error(
326	array(
327	'redirect_to' => wp_login_url( wp_get_referer() ),
328	)
329	);
330	}
331
332	$user_id = get_current_user_id();
333	$course_id = Input::post( 'course_id', 0, Input::TYPE_INT );
334
335	$result = $this->add_or_delete_wishlist( $user_id, $course_id );
336
337	if ( tutor_is_rest() ) {
338	return $result;
339	} elseif ( 'added' === $result ) {
340	wp_send_json_success(
341	array(
342	'status' => 'added',
343	'message' => __( 'Course added to wish list', 'tutor' ),
344	)
345	);
346	} else {
347	wp_send_json_success(
348	array(
349	'status' => 'removed',
350	'message' => __( 'Course removed from wish list', 'tutor' ),
351	)
352	);
353	}
354	}
355
356	/**
357	* Add or Delete wishlist by user_id and course_id
358	*
359	* @since 2.6.2
360	*
361	* @param int $user_id the user id.
362	* @param int $course_id the course_id to add to the wishlist.
363	*
364	* @return string
365	*/
366	public function add_or_delete_wishlist( $user_id, $course_id ) {
367	global $wpdb;
368
369	$if_added_to_list = tutor_utils()->is_wishlisted( $course_id, $user_id );
370
371	$result = '';
372
373	if ( $if_added_to_list ) {
374	$wpdb->delete(
375	$wpdb->usermeta,
376	array(
377	'user_id' => $user_id,
378	'meta_key' => '_tutor_course_wishlist',
379	'meta_value' => $course_id,
380	)
381	);
382
383	$result = 'removed';
384	} else {
385	add_user_meta( $user_id, '_tutor_course_wishlist', $course_id );
386
387	$result = 'added';
388	}
389
390	return $result;
391	}
392
393	/**
394	* Prepare addons data
395	*
396	* @since 1.0.0
397	* @return array
398	*/
399	public function prepare_addons_data() {
400	$addons = apply_filters( 'tutor_addons_lists_config', array() );
401	$plugins_data = $addons;
402
403	if ( is_array( $addons ) && count( $addons ) ) {
404	foreach ( $addons as $base_name => $addon ) {
405	$addon_config = tutor_utils()->get_addon_config( $base_name );
406	$is_enabled = (bool) tutor_utils()->avalue_dot( 'is_enable', $addon_config );
407
408	$plugins_data[ $base_name ]['is_enabled'] = $is_enabled;
409
410	$thumbnail_url = tutor()->url . 'assets/images/tutor-plugin.png';
411	if ( file_exists( $addon['path'] . 'assets/images/thumbnail.png' ) ) {
412	$thumbnail_url = $addon['url'] . 'assets/images/thumbnail.png';
413	} elseif ( file_exists( $addon['path'] . 'assets/images/thumbnail.jpg' ) ) {
414	$thumbnail_url = $addon['url'] . 'assets/images/thumbnail.jpg';
415	} elseif ( file_exists( $addon['path'] . 'assets/images/thumbnail.svg' ) ) {
416	$thumbnail_url = $addon['url'] . 'assets/images/thumbnail.svg';
417	}
418
419	$plugins_data[ $base_name ]['thumb_url'] = $thumbnail_url;
420
421	/**
422	* Checking if there any dependant plugin exists
423	*/
424	$depends = tutor_utils()->array_get( 'depend_plugins', $addon );
425	$plugins_required = array();
426	if ( tutor_utils()->count( $depends ) ) {
427	foreach ( $depends as $plugin_base => $plugin_name ) {
428	if ( ! is_plugin_active( $plugin_base ) ) {
429	$plugins_required[ $plugin_base ] = $plugin_name;
430	}
431	}
432	}
433
434	$depended_plugins = array();
435	foreach ( $plugins_required as $required_plugin ) {
436	array_push( $depended_plugins, $required_plugin );
437	}
438
439	$plugins_data[ $base_name ]['plugins_required'] = $depended_plugins;
440
441	// Check if it's notifications.
442	if ( function_exists( 'tutor_notifications' ) && tutor_notifications()->basename === $base_name ) {
443
444	$required = array();
445	version_compare( PHP_VERSION, '7.2.5', '>=' ) ? 0 : $required[] = __( 'PHP 7.2.5 or greater is required', 'tutor' );
446	! is_ssl() ? $required[] = __( 'SSL certificate', 'tutor' ) : 0;
447
448	foreach ( array( 'curl', 'gmp', 'mbstring', 'openssl' ) as $ext ) {
449	! extension_loaded( $ext ) ? $required[] = 'PHP extension <strong>' . $ext . '</strong>' : 0;
450	}
451
452	$plugins_data[ $base_name ]['ext_required'] = $required;
453	}
454	}
455	}
456
457	/**
458	* Keep same sorting order.
459	*
460	* @since 2.2.4
461	*/
462	$free_addon_list = apply_filters( 'tutor_pro_addons_lists_for_display', array() );
463	$prepared_addons = array();
464
465	foreach ( $free_addon_list as $addon_name => $addon ) {
466	$key = "tutor-pro/addons/{$addon_name}/{$addon_name}.php";
467	if ( isset( $plugins_data[ $key ] ) ) {
468	$prepared_addons[] = $plugins_data[ $key ];
469	}
470	}
471
472	return $prepared_addons;
473	}
474
475	/**
476	* Get all notifications
477	*
478	* @since 1.0.0
479	* @return void
480	*/
481	public function tutor_get_all_addons() {
482
483	// Check and verify the request.
484	tutor_utils()->checking_nonce();
485
486	// All good, let's proceed.
487	$all_addons = $this->prepare_addons_data();
488
489	wp_send_json_success(
490	array(
491	'addons' => $all_addons,
492	)
493	);
494	}
495
496	/**
497	* Method for enable / disable addons
498	*
499	* @since 1.0.0
500	* @return void
501	*/
502	public function addon_enable_disable() {
503
504	if ( ! current_user_can( 'manage_options' ) ) {
505	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
506	}
507
508	$form_data = json_decode( Input::post( 'addonFieldNames' ) );
509	$before_config = get_option( 'tutor_addons_config' );
510	$addons_config = array();
511
512	foreach ( $form_data as $addon_field_name => $is_enable ) {
513
514	$before_status = ! isset( $before_config[ $addon_field_name ] ) ? 0 : $before_config[ $addon_field_name ]['is_enable'];
515	$after_status = $is_enable ? 1 : 0;
516
517	if ( $before_status !== $after_status ) {
518	do_action( 'tutor_addon_before_enable_disable' );
519	if ( $is_enable ) {
520	do_action( "tutor_addon_before_enable_{$addon_field_name}" );
521	do_action( 'tutor_addon_before_enable', $addon_field_name );
522
523	$addons_config[ $addon_field_name ]['is_enable'] = 1;
524	update_option( 'tutor_addons_config', $addons_config );
525
526	do_action( 'tutor_addon_after_enable', $addon_field_name );
527	do_action( "tutor_addon_after_enable_{$addon_field_name}" );
528	} else {
529	do_action( "tutor_addon_before_disable_{$addon_field_name}" );
530	do_action( 'tutor_addon_before_disable', $addon_field_name );
531
532	$addons_config[ $addon_field_name ]['is_enable'] = 0;
533	update_option( 'tutor_addons_config', $addons_config );
534
535	do_action( 'tutor_addon_after_disable', $addon_field_name );
536	do_action( "tutor_addon_after_disable_{$addon_field_name}" );
537	}
538	do_action( 'tutor_addon_after_enable_disable' );
539	} else {
540	$addons_config[ $addon_field_name ]['is_enable'] = $after_status;
541	update_option( 'tutor_addons_config', $addons_config );
542	}
543	}
544
545	wp_send_json_success();
546	}
547
548	/**
549	* Process tutor login
550	*
551	* @since 1.6.3
552	*
553	* @since 2.1.3 Ajax removed, validation errors
554	* stores in session.
555	*
556	* @return void
557	*/
558	public function process_tutor_login() {
559	$validation_error = new \WP_Error();
560
561	/**
562	* Separate nonce verification added to show nonce verification
563	* failed message in a proper way.
564	*
565	* @since 2.1.4
566	*/
567	if ( ! wp_verify_nonce( $_POST[ tutor()->nonce ], tutor()->nonce_action ) ) { //phpcs:ignore
568	$validation_error->add( 401, __( 'Nonce verification failed', 'tutor' ) );
569	\set_transient( self::LOGIN_ERRORS_TRANSIENT_KEY, $validation_error->get_error_messages() );
570	return;
571	}
572	//phpcs:disable WordPress.Security.NonceVerification.Missing
573
574	/**
575	* No sanitization/wp_unslash needed for log & pwd since WordPress
576	* does itself
577	*
578	* @since 2.1.3
579	*
580	* @see https://developer.wordpress.org/reference/functions/wp_signon/
581	*/
582	$username = tutor_utils()->array_get( 'log', $_POST ); //phpcs:ignore
583	$password = tutor_utils()->array_get( 'pwd', $_POST ); //phpcs:ignore
584	$redirect_to = isset( $_POST['redirect_to'] ) ? esc_url_raw( wp_unslash( $_POST['redirect_to'] ) ) : '';
585	$remember = isset( $_POST['rememberme'] );
586
587	try {
588	$creds = array(
589	'user_login' => trim( $username ),
590	'user_password' => $password,
591	'remember' => $remember,
592	);
593
594	$validation_error = apply_filters( 'tutor_process_login_errors', $validation_error, $creds['user_login'], $creds['user_password'] );
595
596	if ( $validation_error->get_error_code() ) {
597	$validation_error->add(
598	$validation_error->get_error_code(),
599	$validation_error->get_error_message()
600	);
601	}
602
603	if ( empty( $creds['user_login'] ) ) {
604	$validation_error->add(
605	400,
606	__( 'Username is required.', 'tutor' )
607	);
608	}
609
610	// On multi-site, ensure user exists on current site, if not add them before allowing login.
611	if ( is_multisite() ) {
612	$user_data = get_user_by( is_email( $creds['user_login'] ) ? 'email' : 'login', $creds['user_login'] );
613
614	if ( $user_data && ! is_user_member_of_blog( $user_data->ID, get_current_blog_id() ) ) {
615	add_user_to_blog( get_current_blog_id(), $user_data->ID, 'customer' );
616	}
617	}
618
619	// Perform the login.
620	$user = wp_signon( apply_filters( 'tutor_login_credentials', $creds ), is_ssl() );
621
622	if ( is_wp_error( $user ) ) {
623	// If no error exist then add WP login error, to prevent error duplication.
624	if ( ! $validation_error->has_errors() ) {
625	$validation_error->add( 400, $user->get_error_message() );
626	}
627	} else {
628	do_action( 'tutor_after_login_success', $user->ID );
629	// Since 1.9.8 do enroll if guest attempt to enroll.
630	$course_enroll_attempt = Input::post( 'tutor_course_enroll_attempt' );
631	if ( ! empty( $course_enroll_attempt ) && is_a( $user, 'WP_User' ) ) {
632	do_action( 'tutor_do_enroll_after_login_if_attempt', $course_enroll_attempt, $user->ID );
633	}
634	wp_safe_redirect( $redirect_to );
635	exit();
636	}
637	} catch ( \Exception $e ) {
638	do_action( 'tutor_login_failed' );
639	$validation_error->add( 400, $e->getMessage() );
640	} finally {
641	// Store errors in transient data.
642	\set_transient( self::LOGIN_ERRORS_TRANSIENT_KEY, $validation_error->get_error_messages() );
643	}
644	}
645
646	/**
647	* Create/Update announcement
648	*
649	* @since 1.7.9
650	* @return void
651	*/
652	public function create_or_update_annoucement() {
653	tutor_utils()->checking_nonce();
654
655	$error = array();
656	$course_id = Input::post( 'tutor_announcement_course' );
657	$announcement_title = Input::post( 'tutor_announcement_title' );
658	$announcement_summary = Input::post( 'tutor_announcement_summary', '', Input::TYPE_TEXTAREA );
659
660	// Check if user can manage this announcment.
661	if ( ! tutor_utils()->can_user_manage( 'course', $course_id ) ) {
662	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
663	}
664
665	// Set data and sanitize it.
666	$form_data = array(
667	'post_type' => 'tutor_announcements',
668	'post_title' => $announcement_title,
669	'post_content' => $announcement_summary,
670	'post_parent' => $course_id,
671	'post_status' => 'publish',
672	);
673
674	if ( Input::has( 'announcement_id' ) ) {
675	$form_data['ID'] = Input::post( 'announcement_id' );
676	}
677
678	// Validation message set.
679	if ( empty( $form_data['post_parent'] ) ) {
680	$error['post_parent'] = __( 'Course name required', 'tutor' );
681
682	}
683
684	if ( empty( $form_data['post_title'] ) ) {
685	$error['post_title'] = __( 'Announcement title required', 'tutor' );
686	}
687
688	if ( empty( $form_data['post_content'] ) ) {
689	$error['post_content'] = __( 'Announcement summary required', 'tutor' );
690
691	}
692
693	if ( empty( $form_data['post_content'] ) ) {
694	$error['post_content'] = __( 'Announcement summary required', 'tutor' );
695
696	}
697
698	// If validation fails.
699	if ( count( $error ) > 0 ) {
700	wp_send_json_error(
701	array(
702	'message' => __( 'All fields required!', 'tutor' ),
703	'fields' => $error,
704	)
705	);
706	}
707
708	// Insert or update post.
709	$post_id = wp_insert_post( $form_data );
710	if ( $post_id > 0 ) {
711	$announcement = get_post( $post_id );
712	$action_type = Input::post( 'action_type' );
713
714	do_action( 'tutor_announcements/after/save', $post_id, $announcement, $action_type );
715
716	$resp_message = 'create' === $action_type ? __( 'Announcement created successfully', 'tutor' ) : __( 'Announcement updated successfully', 'tutor' );
717	wp_send_json_success( array( 'message' => $resp_message ) );
718	}
719
720	wp_send_json_error( array( 'message' => __( 'Something Went Wrong!', 'tutor' ) ) );
721	}
722
723	/**
724	* Delete announcement
725	*
726	* @since 1.7.9
727	* @return void
728	*/
729	public function delete_annoucement() {
730	tutor_utils()->checking_nonce();
731
732	$announcement_id = Input::post( 'announcement_id' );
733
734	if ( ! tutor_utils()->can_user_manage( 'announcement', $announcement_id ) ) {
735	wp_send_json_error( array( 'message' => __( 'Access Denied', 'tutor' ) ) );
736	}
737
738	$delete = wp_delete_post( $announcement_id );
739	if ( $delete ) {
740	wp_send_json_success( array( 'message' => __( 'Announcement deleted successfully', 'tutor' ) ) );
741	}
742
743	wp_send_json_error( array( 'message' => __( 'Announcement delete failed', 'tutor' ) ) );
744	}
745	}
746