tutor / classes / Lesson.php

Lesson.php in Tutor LMS – eLearning and online course solution 1.0.7, 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	update_post_meta($post_ID, '_video', $video);
76	}
77
78	//Attachments
79	$attachments = array();
80	if ( ! empty($_POST['tutor_attachments'])){
81	$attachments = tutor_utils()->sanitize_array($_POST['tutor_attachments']);
82	$attachments = array_unique($attachments);
83	}
84	update_post_meta($post_ID, '_tutor_attachments', $attachments);
85	}
86
87	public function tutor_load_edit_lesson_modal(){
88	$lesson_id = (int) tutor_utils()->avalue_dot('lesson_id', $_POST);
89	$topic_id = (int) sanitize_text_field( $_POST['topic_id'] );
90
91	/**
92	* If Lesson Not Exists, create One
93	*/
94	if ( ! $lesson_id){
95	$course_id = (int) sanitize_text_field( $_POST['course_id'] );
96
97	$post_arr = array(
98	'post_type' => $this->lesson_post_type,
99	'post_title' => __('Draft Lesson', 'tutor'),
100	'post_status' => 'publish',
101	'post_author' => get_current_user_id(),
102	'post_parent' => $topic_id,
103	);
104	$lesson_id = wp_insert_post( $post_arr );
105	if ($lesson_id ) {
106	update_post_meta( $lesson_id, '_tutor_course_id_for_lesson', $course_id );
107	}
108	}
109
110	$post = get_post($lesson_id);
111
112	ob_start();
113	include tutor()->path.'views/modal/edit-lesson.php';
114	$output = ob_get_clean();
115
116	wp_send_json_success(array('output' => $output));
117	}
118
119	public function tutor_modal_create_or_update_lesson(){
120	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
121	$_lesson_thumbnail_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('_lesson_thumbnail_id', $_POST));
122
123	$title = sanitize_text_field($_POST['lesson_title']);
124	$lesson_content = wp_kses_post($_POST['lesson_content']);
125
126	$lesson_data = array(
127	'ID' => $lesson_id,
128	'post_title' => $title,
129	'post_content' => $lesson_content,
130	);
131
132	if ($_lesson_thumbnail_id){
133	$lesson_data['_thumbnail_id'] = $_lesson_thumbnail_id;
134	}
135	wp_update_post($lesson_data);
136
137	$course_id = tutor_utils()->get_course_id_by_lesson($lesson_id);
138	ob_start();
139	include tutor()->path.'views/metabox/course-contents.php';
140	$course_contents = ob_get_clean();
141
142	wp_send_json_success(array('course_contents' => $course_contents));
143	}
144
145	/**
146	* Delete Lesson from course builder
147	*/
148	public function tutor_delete_lesson_by_id(){
149	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
150	wp_delete_post($lesson_id, true);
151	delete_post_meta($lesson_id, '_tutor_course_id_for_lesson');
152	wp_send_json_success();
153	}
154
155
156	/**
157	* @param $uri
158	* @param $lesson_id
159	*
160	* @return mixed
161	*
162	* Changed the URI based
163	*/
164
165	public function change_lesson_permalink($uri, $lesson_id){
166	$post = get_post($lesson_id);
167
168	if ($post && $post->post_type === $this->lesson_post_type){
169	$uri_base = trailingslashit(site_url());
170
171	$sample_course = "sample-course";
172	$is_course = get_post_meta(get_the_ID(), '_tutor_course_id_for_lesson', true);
173	if ($is_course){
174	$course = get_post($is_course);
175	if ($course){
176	$sample_course = $course->post_name;
177	}
178	}
179
180	$new_course_base = $uri_base."course/{$sample_course}/lesson/%pagename%/";
181	$uri[0] = $new_course_base;
182	}
183
184	return $uri;
185	}
186
187
188	public function flush_rewrite_rules(){
189	$is_required_flush = get_option('required_rewrite_flush');
190	if ($is_required_flush){
191	flush_rewrite_rules();
192	}
193	}
194
195
196	public function add_column($columns){
197	$date_col = $columns['date'];
198	unset($columns['date']);
199	$columns['course'] = __('Course', 'tutor');
200	$columns['date'] = $date_col;
201
202	return $columns;
203	}
204
205	/**
206	* @param $column
207	* @param $post_id
208	*
209	*/
210	public function custom_lesson_column($column, $post_id ){
211	if ($column === 'course'){
212
213	$course_id = get_post_meta($post_id, '_tutor_course_id_for_lesson', true);
214	if ($course_id){
215	echo '<a href="'.admin_url('post.php?post='.$course_id.'&action=edit').'">'.get_the_title($course_id).'</a>';
216	}
217
218	}
219	}
220
221	/**
222	*
223	* Mark lesson completed
224	*
225	* @since v.1.0.0
226	*/
227	public function mark_lesson_complete(){
228	if ( ! isset($_POST['tutor_action']) \|\| $_POST['tutor_action'] !== 'tutor_complete_lesson' ){
229	return;
230	}
231	//Checking nonce
232	tutor_utils()->checking_nonce();
233
234	$user_id = get_current_user_id();
235
236	//TODO: need to show view if not signed_in
237	if ( ! $user_id){
238	die(__('Please Sign-In', 'tutor'));
239	}
240
241	$lesson_id = (int) sanitize_text_field($_POST['lesson_id']);
242
243	do_action('tutor_lesson_completed_before', $lesson_id);
244	/**
245	* Marking lesson at user meta, meta format, _tutor_completed_lesson_id_{id} and value = time();
246	*/
247	tutor_utils()->mark_lesson_complete($lesson_id);
248
249	do_action('tutor_lesson_completed_after', $lesson_id);
250
251
252	wp_redirect(get_the_permalink($lesson_id));
253	}
254
255	/**
256	* Render the lesson content
257	*/
258	public function tutor_render_lesson_content(){
259	$lesson_id = (int) sanitize_text_field(tutor_utils()->avalue_dot('lesson_id', $_POST));
260
261	ob_start();
262	global $post;
263
264	$post = get_post($lesson_id);
265	setup_postdata($post);
266	tutor_lesson_content();
267	wp_reset_postdata();
268
269	$html = ob_get_clean();
270	wp_send_json_success(array('html' => $html));
271	}
272
273	}
274
275
276