tutor / classes / Lesson.php

Lesson.php in Tutor LMS – eLearning and online course solution 1.3.5, at classes/Lesson.php

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1	<?php
2	namespace TUTOR;
3
4	if ( ! defined( 'ABSPATH' ) )
5	exit;
6
7	class Lesson extends Tutor_Base {
8	public function __construct() {
9	parent::__construct();
10
11	add_action( 'add_meta_boxes', array($this, 'register_meta_box') );
12	add_action('save_post_'.$this->lesson_post_type, array($this, "save_lesson_meta"));
13
14	add_action('wp_ajax_tutor_load_edit_lesson_modal', array($this, "tutor_load_edit_lesson_modal"));
15	add_action('wp_ajax_tutor_modal_create_or_update_lesson', array($this, "tutor_modal_create_or_update_lesson"));
16	add_action('wp_ajax_tutor_delete_lesson_by_id', array($this, "tutor_delete_lesson_by_id"));
17
18	add_filter('get_sample_permalink', array($this, 'change_lesson_permalink'), 10, 2);
19	add_action('admin_init', array($this, 'flush_rewrite_rules'));
20
21	/**
22	* Add Column
23	*/
24
25	add_filter( "manage_{$this->lesson_post_type}_posts_columns", array($this, 'add_column'), 10,1 );
26	add_action( "manage_{$this->lesson_post_type}_posts_custom_column" , array($this, 'custom_lesson_column'), 10, 2 );
27
28	//Frontend Action
29	add_action('template_redirect', array($this, 'mark_lesson_complete'));
30
31	add_action('wp_ajax_tutor_render_lesson_content', array($this, "tutor_render_lesson_content"));
32	}
33
34	/**
35	* Registering metabox
36	*/
37	public function register_meta_box(){
38	$lesson_post_type = $this->lesson_post_type;
39
40	add_meta_box( 'tutor-course-select', __( 'Select Course', 'tutor' ), array($this, 'lesson_metabox'), $lesson_post_type );
41	add_meta_box( 'tutor-lesson-videos', __( 'Lesson Video', 'tutor' ), array($this, 'lesson_video_metabox'), $lesson_post_type );
42	add_meta_box( 'tutor-lesson-attachments', __( 'Attachments', 'tutor' ), array($this, 'lesson_attachments_metabox'), $lesson_post_type );
43	}
44
45	public function lesson_metabox(){
46	include tutor()->path.'views/metabox/lesson-metabox.php';
47	}
48
49	public function lesson_video_metabox(){
50	include tutor()->path.'views/metabox/video-metabox.php';
51	}
52
53	public function lesson_attachments_metabox(){
54	include tutor()->path.'views/metabox/lesson-attachments-metabox.php';
55	}
56
57	/**
58	* @param $post_ID
59	*
60	* Saving lesson meta and assets
61	*
62	*/
63	public function save_lesson_meta($post_ID){
64	//Course
65	if (isset($_POST['selected_course'])) {
66	$course_id = (int) sanitize_text_field( $_POST['selected_course'] );
67	if ( $course_id ) {
68	update_post_meta( $post_ID, '_tutor_course_id_for_lesson', $course_id );
69	}
70	}
71
72	//Video
73	if ( ! empty($_POST['video']['source'])){
74	//$video = tutor_utils()->sanitize_array($_POST['video']);
75	$video = tutor_utils()->array_get('video', $_POST);
76	update_post_meta($post_ID, '_video', $video);
77	}else{
78	delete_post_meta($post_ID, '_video');
79	}
80
81	//Attachments
82	$attachments = array();
83	if ( ! empty($_POST['tutor_attachments'])){
84	$attachments = tutor_utils()->sanitize_array($_POST['tutor_attachments']);
85	$attachments = array_unique($attachments);
86	}
87	update_post_meta($post_ID, '_tutor_attachments', $attachments);
88	}
89
90	public function tutor_load_edit_lesson_modal(){
91	$lesson_id = (int) tutor_utils()->avalue_dot('lesson_id', $_POST);
92	$topic_id = (int) sanitize_text_field( $_POST['topic_id'] );
93
94	/**
95	* If Lesson Not Exists, create One
96	*/
97	if ( ! $lesson_id){
98	$course_id = (int) sanitize_text_field( $_POST['course_id'] );
99
100	$post_arr = array(
101	'post_type' => $this->lesson_post_type,
102	'post_title' => __('Draft Lesson', 'tutor'),
103	'post_status' => 'publish',
104	'post_author' => get_current_user_id(),
105	'post_parent' => $topic_id,
106	);
107	$lesson_id = wp_insert_post( $post_arr );
108	if ($lesson_id ) {
109	update_post_meta( $lesson_id, '_tutor_course_id_for_lesson', $course_id );
110	}
111	}
112
113	$post = get_post($lesson_id);
114	ob_start();
115	include tutor()->path.'views/modal/edit-lesson.php';
116	$output = ob_get_clean();
117
118	wp_send_json_success(array('output' => $output));
119	}
120
121	public function tutor_modal_create_or_update_lesson(){
122	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
123	$_lesson_thumbnail_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('_lesson_thumbnail_id', $_POST));
124
125	$title = sanitize_text_field($_POST['lesson_title']);
126	$lesson_content = wp_kses_post($_POST['lesson_content']);
127
128	$lesson_data = array(
129	'ID' => $lesson_id,
130	'post_title' => $title,
131	'post_name' => sanitize_title($title),
132	'post_content' => $lesson_content,
133	);
134
135	if ($_lesson_thumbnail_id){
136	$lesson_data['_thumbnail_id'] = $_lesson_thumbnail_id;
137	}
138	wp_update_post($lesson_data);
139
140	$course_id = tutor_utils()->get_course_id_by_lesson($lesson_id);
141
142	ob_start();
143	include tutor()->path.'views/metabox/course-contents.php';
144	$course_contents = ob_get_clean();
145
146	wp_send_json_success(array('course_contents' => $course_contents));
147	}
148
149	/**
150	* Delete Lesson from course builder
151	*/
152	public function tutor_delete_lesson_by_id(){
153	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
154	wp_delete_post($lesson_id, true);
155	delete_post_meta($lesson_id, '_tutor_course_id_for_lesson');
156	wp_send_json_success();
157	}
158
159
160	/**
161	* @param $uri
162	* @param $lesson_id
163	*
164	* @return mixed
165	*
166	* Changed the URI based
167	*/
168
169	public function change_lesson_permalink($uri, $lesson_id){
170	$post = get_post($lesson_id);
171
172	if ($post && $post->post_type === $this->lesson_post_type){
173	$uri_base = trailingslashit(site_url());
174
175	$sample_course = "sample-course";
176	$is_course = get_post_meta(get_the_ID(), '_tutor_course_id_for_lesson', true);
177	if ($is_course){
178	$course = get_post($is_course);
179	if ($course){
180	$sample_course = $course->post_name;
181	}
182	}
183
184	$new_course_base = $uri_base."course/{$sample_course}/lesson/%pagename%/";
185	$uri[0] = $new_course_base;
186	}
187
188	return $uri;
189	}
190
191
192	public function flush_rewrite_rules(){
193	$is_required_flush = get_option('required_rewrite_flush');
194	if ($is_required_flush){
195	flush_rewrite_rules();
196	}
197	}
198
199
200	public function add_column($columns){
201	$date_col = $columns['date'];
202	unset($columns['date']);
203	$columns['course'] = __('Course', 'tutor');
204	$columns['date'] = $date_col;
205
206	return $columns;
207	}
208
209	/**
210	* @param $column
211	* @param $post_id
212	*
213	*/
214	public function custom_lesson_column($column, $post_id ){
215	if ($column === 'course'){
216
217	$course_id = get_post_meta($post_id, '_tutor_course_id_for_lesson', true);
218	if ($course_id){
219	echo '<a href="'.admin_url('post.php?post='.$course_id.'&action=edit').'">'.get_the_title($course_id).'</a>';
220	}
221
222	}
223	}
224
225	/**
226	*
227	* Mark lesson completed
228	*
229	* @since v.1.0.0
230	*/
231	public function mark_lesson_complete(){
232	if ( ! isset($_POST['tutor_action']) \|\| $_POST['tutor_action'] !== 'tutor_complete_lesson' ){
233	return;
234	}
235	//Checking nonce
236	tutor_utils()->checking_nonce();
237
238	$user_id = get_current_user_id();
239
240	//TODO: need to show view if not signed_in
241	if ( ! $user_id){
242	die(__('Please Sign-In', 'tutor'));
243	}
244
245	$lesson_id = (int) sanitize_text_field($_POST['lesson_id']);
246
247	do_action('tutor_lesson_completed_before', $lesson_id);
248	/**
249	* Marking lesson at user meta, meta format, _tutor_completed_lesson_id_{id} and value = time();
250	*/
251	tutor_utils()->mark_lesson_complete($lesson_id);
252
253	do_action('tutor_lesson_completed_after', $lesson_id);
254
255
256	wp_redirect(get_the_permalink($lesson_id));
257	}
258
259	/**
260	* Render the lesson content
261	*/
262	public function tutor_render_lesson_content(){
263	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
264
265	ob_start();
266	global $post;
267
268	$post = get_post($lesson_id);
269	setup_postdata($post);
270	tutor_lesson_content();
271	wp_reset_postdata();
272
273	$html = ob_get_clean();
274	wp_send_json_success(array('html' => $html));
275	}
276
277	}
278
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280