learnpress / inc / custom-post-types / quiz.php

quiz.php in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses 4.2.0, at inc/custom-post-types/quiz.php

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1	<?php
2	/**
3	* Class LP_Quiz_Post_Type
4	*
5	* @author ThimPress
6	* @package LearnPress/Classes
7	* @version 4.0.0
8	*/
9
10	defined( 'ABSPATH' ) \|\| exit();
11
12	if ( ! class_exists( 'LP_Quiz_Post_Type' ) ) {
13
14	/**
15	* Class LP_Quiz_Post_Type
16	*/
17	final class LP_Quiz_Post_Type extends LP_Abstract_Post_Type {
18
19	/**
20	* @var null
21	*/
22	protected static $_instance = null;
23
24	/**
25	* @var array
26	*/
27	public static $metaboxes = array();
28
29	/**
30	* @var string
31	*/
32	protected $_post_type = LP_QUIZ_CPT;
33
34	/**
35	* LP_Quiz_Post_Type constructor.
36	*
37	* @param $post_type
38	* @param mixed
39	*/
40	public function __construct() {
41
42	//$this->add_map_method( 'before_delete', 'before_delete_quiz' );
43
44	add_action( 'learn-press/admin/after-enqueue-scripts', array( $this, 'data_quiz_editor' ) );
45
46	add_filter( 'views_edit-' . LP_QUIZ_CPT, array( $this, 'views_pages' ), 10 );
47	add_filter( 'posts_where_paged', array( $this, 'posts_where_paged' ), 10 );
48
49	parent::__construct();
50	}
51
52	/**
53	* Add filters to lesson view.
54	*
55	* @since 3.0.0
56	*
57	* @param array $views
58	*
59	* @return array
60	*/
61	public function views_pages( array $views ): array {
62	$count_unassigned_quiz = LP_Course_DB::getInstance()->get_total_item_unassigned( LP_QUIZ_CPT );
63
64	if ( $count_unassigned_quiz > 0 ) {
65	$views['unassigned'] = sprintf(
66	'<a href="%s" class="%s">%s <span class="count">(%d)</span></a>',
67	admin_url( 'edit.php?post_type=' . LP_QUIZ_CPT . '&unassigned=yes' ),
68	isset( $_GET['unassigned'] ) ? 'current' : '',
69	__( 'Unassigned', 'learnpress' ),
70	$count_unassigned_quiz
71	);
72	}
73
74	return $views;
75	}
76
77	/**
78	* Register quiz post type.
79	*/
80	public function args_register_post_type(): array {
81	$args = apply_filters(
82	'lp_quiz_post_type_args',
83	array(
84	'labels' => array(
85	'name' => esc_html__( 'Quizzes', 'learnpress' ),
86	'menu_name' => esc_html__( 'Quizzes', 'learnpress' ),
87	'singular_name' => esc_html__( 'Quiz', 'learnpress' ),
88	'add_new_item' => esc_html__( 'Add A New Quiz', 'learnpress' ),
89	'edit_item' => esc_html__( 'Edit Quiz', 'learnpress' ),
90	'all_items' => esc_html__( 'Quizzes', 'learnpress' ),
91	'view_item' => esc_html__( 'View Quiz', 'learnpress' ),
92	'add_new' => esc_html__( 'New Quiz', 'learnpress' ),
93	'update_item' => esc_html__( 'Update Quiz', 'learnpress' ),
94	'search_items' => esc_html__( 'Search Quizzes', 'learnpress' ),
95	'not_found' => sprintf( __( 'You haven\'t had any quizzes yet. Click <a href="%s">Add new</a> to start', 'learnpress' ), admin_url( 'post-new.php?post_type=lp_quiz' ) ),
96	'not_found_in_trash' => esc_html__( 'There was no quiz found in the trash', 'learnpress' ),
97	),
98	'public' => true,
99	'publicly_queryable' => true,
100	'show_ui' => true,
101	'has_archive' => false,
102	'capability_type' => LP_LESSON_CPT,
103	'map_meta_cap' => true,
104	'show_in_menu' => 'learn_press',
105	'show_in_rest' => true,
106	'show_in_admin_bar' => true,
107	'show_in_nav_menus' => true,
108	'supports' => array(
109	'title',
110	'editor',
111	'revisions',
112	),
113	'hierarchical' => true,
114	'rewrite' => array(
115	'slug' => 'quizzes',
116	'hierarchical' => true,
117	'with_front' => false,
118	),
119	)
120	);
121
122	return $args;
123	}
124
125	/**
126	* Load data for quiz editor.
127	*
128	* @since 3.0.0
129	*/
130	public function data_quiz_editor() {
131	if ( LP_QUIZ_CPT !== get_post_type() ) {
132	return;
133	}
134
135	global $post;
136
137	$quiz = LP_Quiz::get_quiz( $post->ID );
138
139	$user_id = get_current_user_id();
140	$default_new_question_type = get_user_meta( $user_id, '_learn_press_memorize_question_types', true ) ? get_user_meta( $user_id, '_learn_press_memorize_question_types', true ) : 'true_or_false';
141
142	$hidden_questions = get_post_meta( $post->ID, '_lp_hidden_questions', true );
143	$hidden_questions_settings = get_post_meta( $post->ID, '_hidden_questions_settings', true );
144
145	wp_localize_script(
146	'learn-press-admin-quiz-editor',
147	'lp_quiz_editor',
148	apply_filters(
149	'learn-press/admin-localize-quiz-editor',
150	array(
151	'root' => array(
152	'quiz_id' => $post->ID,
153	'ajax' => admin_url( '' ),
154	'action' => 'admin_quiz_editor',
155	'nonce' => wp_create_nonce( 'learnpress_admin_quiz_editor' ),
156	'types' => LP_Question::get_types(),
157	'default_new' => $default_new_question_type,
158	),
159	'chooseItems' => array(
160	'open' => false,
161	'addedItems' => array(),
162	'items' => array(),
163	),
164	'i18n' => apply_filters(
165	'learn-press/quiz-editor/i18n',
166	array(
167	'option' => esc_html__( 'Option', 'learnpress' ),
168	'unique' => learn_press_uniqid(),
169	'back' => esc_html__( 'Back', 'learnpress' ),
170	'selected_items' => esc_html__( 'Selected items', 'learnpress' ),
171	'new_option' => esc_html__( 'New Option', 'learnpress' ),
172	'confirm_trash_question' => esc_html__( 'Do you want to move the "{{QUESTION_NAME}}" question to the trash?', 'learnpress' ),
173	'question_labels' => array(
174	'singular' => esc_html__( 'Question', 'learnpress' ),
175	'plural' => esc_html__( 'Questions', 'learnpress' ),
176	),
177	'confirm_remove_blanks' => esc_html__( 'Are you sure to remove all the blanks?', 'learnpress' ),
178	)
179	),
180	'listQuestions' => array(
181	'questions' => $quiz->quiz_editor_get_questions(),
182	'hidden_questions' => ! empty( $hidden_questions ) ? $hidden_questions : array(),
183	'hidden_questions_settings' => $hidden_questions_settings ? $hidden_questions_settings : array(),
184	'disableUpdateList' => false,
185	'supportAnswerOptions' => learn_press_get_question_support_answer_options(),
186	),
187	)
188	)
189	);
190	}
191
192	/**
193	* Delete all questions assign to quiz.
194	*
195	* @since 3.0.0
196	*
197	* @param $post_id
198	*/
199	public function before_delete_quiz( $post_id ) {
200	if ( get_post_type( $post_id ) !== LP_QUIZ_CPT ) {
201	return;
202	}
203
204	$curd = new LP_Quiz_CURD();
205	// remove question from course items
206	$curd->delete( $post_id );
207	}
208
209	/**
210	* Admin editor
211	*
212	* @since 3.3.0
213	*
214	* @return bool\|string
215	*/
216	public function admin_editor() {
217	$quiz = LP_Quiz::get_quiz();
218
219	echo learn_press_admin_view_content( 'quiz/editor' );
220	}
221
222	/**
223	* Add columns to admin manage quiz page
224	*
225	* @param array $columns
226	*
227	* @return array
228	*/
229	public function columns_head( $columns ) {
230	$pos = array_search( 'title', array_keys( $columns ) );
231
232	if ( false !== $pos && ! array_key_exists( LP_COURSE_CPT, $columns ) ) {
233	$columns = array_merge(
234	array_slice( $columns, 0, $pos + 1 ),
235	array(
236	'instructor' => esc_html__( 'Author', 'learnpress' ),
237	LP_COURSE_CPT => esc_html__( 'Course', 'learnpress' ),
238	'num_of_question' => esc_html__( 'Questions', 'learnpress' ),
239	'duration' => esc_html__( 'Duration', 'learnpress' ),
240	),
241	array_slice( $columns, $pos + 1 )
242	);
243	}
244
245	unset( $columns['taxonomy-lesson-tag'] );
246	$user = wp_get_current_user();
247
248	if ( in_array( 'lp_teacher', $user->roles ) ) {
249	unset( $columns['instructor'] );
250	}
251
252	if ( ! empty( $columns['author'] ) ) {
253	unset( $columns['author'] );
254	}
255
256	return $columns;
257	}
258
259	/**
260	* Display content for custom column
261	*
262	* @param string $name
263	* @param int $post_id
264	*/
265	public function columns_content( $name, $post_id = 0 ) {
266	global $post;
267
268	switch ( $name ) {
269	case 'instructor':
270	$this->column_instructor( $post_id );
271	break;
272	case 'lp_course':
273	$this->_get_item_course( $post_id );
274	break;
275	case 'num_of_question':
276	if ( property_exists( $post, 'question_count' ) ) {
277	$count = $post->question_count;
278	} else {
279	$quiz = LP_Quiz::get_quiz( $post_id );
280	$count = $quiz->count_questions();
281	}
282
283	printf(
284	'<span class="lp-label-counter' . ( ! $count ? ' disabled' : '' ) . '" title="%s">%s</span>',
285	( $count ) ? sprintf( _n( '%d question', '%d questions', $count, 'learnpress' ), $count ) : __( 'This quiz has no questions', 'learnpress' ),
286	$count
287	);
288	break;
289	case 'duration':
290	$duration_str = get_post_meta( $post_id, '_lp_duration', true );
291	$duration = (int) $duration_str;
292
293	if ( $duration > 0 ) {
294	$duration_str .= 's';
295	$duration_str_arr = explode( ' ', $duration_str );
296	$type_time = '';
297
298	if ( is_array( $duration_str_arr ) && ! empty( $duration_str_arr ) && count( $duration_str_arr ) >= 2 ) {
299	switch ( $duration_str_arr[1] ) {
300	case 'hours':
301	$type_time = __( 'hours', 'learnpress' );
302	break;
303	case 'minutes':
304	$type_time = __( 'minutes', 'learnpress' );
305	break;
306	case 'days':
307	$type_time = __( 'days', 'learnpress' );
308	break;
309	case 'weeks':
310	$type_time = __( 'weeks', 'learnpress' );
311	break;
312	}
313
314	$duration_str = sprintf( '%1$s %2$s', $duration_str_arr[0], $type_time );
315	}
316	} else {
317	$duration_str = '--';
318	}
319
320	echo esc_html( $duration_str );
321	break;
322	case 'preview':
323	printf(
324	'<input type="checkbox" class="learn-press-checkbox learn-press-toggle-item-preview" %s value="%s" data-nonce="%s" />',
325	get_post_meta( $post_id, '_lp_preview', true ) == 'yes' ? ' checked="checked"' : '',
326	$post_id,
327	wp_create_nonce( 'learn-press-toggle-item-preview' )
328	);
329	break;
330	default:
331	break;
332
333	}
334	}
335
336	/**
337	* @param $fields
338	*
339	* @return string
340	*/
341	public function posts_fields( $fields ): string {
342	global $wpdb;
343
344	if ( ! $this->is_page_list_posts_on_backend() ) {
345	return $fields;
346	}
347
348	$fields = ' DISTINCT ' . $fields;
349
350	if ( $this->get_order_by() == 'question-count' ) {
351	$fields .= ", (SELECT count(*) FROM {$wpdb->prefix}learnpress_quiz_questions qq WHERE {$wpdb->posts}.ID = qq.quiz_id ) as question_count";
352	}
353
354	return $fields;
355	}
356
357	/**
358	* @param $join
359	*
360	* @return string
361	*/
362	public function posts_join_paged( $join ): string {
363	if ( ! $this->is_page_list_posts_on_backend() ) {
364	return $join;
365	}
366
367	return $join;
368	}
369
370	/**
371	* @param $where
372	*
373	* @return mixed\|string
374	*/
375	public function posts_where_paged( $where ) {
376	if ( ! $this->is_page_list_posts_on_backend() ) {
377	return $where;
378	}
379
380	global $wpdb;
381
382	if ( 'yes' === LP_Request::get( 'unassigned' ) ) {
383	$where .= $wpdb->prepare(
384	"
385	AND {$wpdb->posts}.ID NOT IN(
386	SELECT si.item_id
387	FROM {$wpdb->learnpress_section_items} si
388	INNER JOIN {$wpdb->posts} p ON p.ID = si.item_id
389	WHERE p.post_type = %s
390	)
391	",
392	LP_QUIZ_CPT
393	);
394	}
395
396	return $where;
397	}
398
399	/**
400	* @param $order_by_statement
401	*
402	* @return string
403	*/
404	public function posts_orderby( $order_by_statement ) {
405	global $wpdb;
406
407	if ( ! $this->is_page_list_posts_on_backend() ) {
408	return $order_by_statement;
409	}
410
411	$orderby = $this->get_order_by();
412	$order = $this->get_order_sort();
413
414	if ( $order && $orderby ) {
415	switch ( $orderby ) {
416	case 'course-name':
417	$order_by_statement = "post_title {$order}";
418	break;
419	case 'question-count':
420	$order_by_statement = "question_count {$order}";
421	break;
422	default:
423	$order_by_statement = "{$wpdb->posts}.post_title {$order}";
424	}
425	}
426
427	return $order_by_statement;
428	}
429
430	/**
431	* @param $columns
432	*
433	* @return mixed
434	*/
435	public function sortable_columns( $columns ) {
436	$columns['instructor'] = 'author';
437	$columns[ LP_COURSE_CPT ] = 'course-name';
438	$columns['num_of_question'] = 'question-count';
439
440	return $columns;
441	}
442
443	/**
444	* Quiz assigned view.
445	*
446	* @since 3.0.0
447	*/
448	// public static function quiz_assigned() {
449	// learn_press_admin_view( 'meta-boxes/course/assigned.php' );
450	// }
451
452	public function meta_boxes() {
453	return array(
454	'quiz_assigned' => array(
455	'title' => esc_html__( 'Assigned', 'learnpress' ),
456	'callback' => function( $post ) {
457	learn_press_admin_view( 'meta-boxes/course/assigned.php' );
458	},
459	'context' => 'side',
460	'priority' => 'high',
461	),
462	'quiz-editor' => array(
463	'title' => esc_html__( 'Questions', 'learnpress' ),
464	'callback' => array( $this, 'admin_editor' ),
465	'context' => 'normal',
466	'priority' => 'high',
467	),
468	);
469	}
470
471	/**
472	* @return LP_Quiz_Post_Type\|null
473	*/
474	public static function instance() {
475	if ( ! self::$_instance ) {
476	self::$_instance = new self();
477	}
478
479	return self::$_instance;
480	}
481
482	/**
483	* Save Post type Quiz
484	*
485	* @author tungnx
486	* @version 1.0.0
487	* @since 4.0.0
488	*/
489	public function save( int $post_id, WP_Post $post ) {
490	$lp_quiz_cache = LP_Quiz_Cache::instance();
491
492	// Clear cache get question_ids of quiz
493	$lp_quiz_cache->clear( "$post_id/question_ids" );
494	}
495	}
496
497	// LP_Quiz_Post_Type
498	$quiz_post_type = LP_Quiz_Post_Type::instance();
499	}
500