learnpress / inc / admin / class-lp-modal-search-items.php

class-lp-modal-search-items.php in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses 4.4.0, at inc/admin/class-lp-modal-search-items.php

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1	<?php
2	/**
3	* Class LP_Modal_Search_Items.
4	*
5	* @author ThimPress
6	* @package LearnPress/Classes
7	* @version 3.0.0
8	*/
9
10	/**
11	* Prevent loading this file directly
12	*/
13	defined( 'ABSPATH' ) \|\| exit();
14
15	if ( ! class_exists( 'LP_Modal_Search_Items' ) ) {
16
17	/**
18	* Class LP_Modal_Search_Items
19	*/
20	class LP_Modal_Search_Items {
21
22	/**
23	* @var array
24	*/
25	protected $_options = array();
26
27	/**
28	* @var array
29	*/
30	protected $_query_args = array();
31
32	/**
33	* @var array
34	*/
35	protected $_items = array();
36
37	/**
38	* @var bool
39	*/
40	protected $_changed = true;
41
42	/**
43	* LP_Modal_Search_Items constructor.
44	*
45	* @param string $options
46	*/
47	public function __construct( $options = '' ) {
48	add_action( 'admin_print_footer_scripts', array( $this, 'js_template' ) );
49
50	$this->_options = apply_filters(
51	'learn-press/modal-search-items-args',
52	wp_parse_args(
53	$options,
54	array(
55	'type' => '',
56	'context' => '',
57	'context_id' => '',
58	'exclude' => '',
59	'term' => '',
60	'add_button' => __( 'Add', 'learnpress' ),
61	'close_button' => __( 'Close', 'learnpress' ),
62	'title' => __( 'Search items', 'learnpress' ),
63	'limit' => 10,
64	'paged' => 1,
65	)
66	)
67	);
68
69	if ( is_string( $this->_options['exclude'] ) ) {
70	$this->_options['exclude'] = explode( ',', $this->_options['exclude'] );
71	}
72
73	add_filter( 'learn-press/modal-search-items/exclude', array( $this, 'exclude_items' ), 10, 4 );
74	add_filter( 'learn-press/modal-search-items/args', array( $this, 'query_args' ), 10, 3 );
75	}
76
77	/**
78	* Build query args from object options and get posts.
79	*
80	* @return array
81	*/
82	protected function _get_items(): array {
83	$user_id = get_current_user_id();
84
85	$term = $this->_options['term'];
86	$type = $this->_options['type'];
87	$context = $this->_options['context'];
88	$context_id = $this->_options['context_id'];
89
90	$exclude = array_unique( (array) apply_filters( 'learn-press/modal-search-items/exclude', $this->_options['exclude'], $type, $context, $context_id ) );
91
92	if ( is_array( $exclude ) ) {
93	$exclude = array_map( 'intval', $exclude );
94	}
95
96	$paged = max( 1, $this->_options['paged'] );
97
98	$args = array(
99	'post_type' => array( $type ),
100	'post_status' => 'publish',
101	'order' => 'ASC',
102	'orderby' => 'parent title',
103	'exclude' => $exclude,
104	'posts_per_page' => $this->_options['limit'],
105	'offset' => ( $paged - 1 ) * $this->_options['limit'],
106	);
107
108	if ( 'order-items' === $context ) {
109	$context_id = false;
110	}
111
112	$context_id = apply_filters( 'learn-press/modal-search-items/context-id', $context_id, $context );
113	if ( $context_id ) {
114	// Admin can get all items
115	if ( ! user_can( $user_id, 'administrator' ) ) {
116	$args['author'] = get_post_field( 'post_author', $context_id );
117	}
118	}
119
120	if ( $term ) {
121	$args['s'] = $term;
122	}
123
124	$this->_query_args = apply_filters( 'learn-press/modal-search-items/args', $args, $context, $context_id );
125
126	$posts = get_posts( $this->_query_args );
127
128	if ( $posts ) {
129	$this->_items = wp_list_pluck( $posts, 'ID' );
130	}
131
132	return $this->_items;
133	}
134
135	/**
136	* Get the items
137	*
138	* @return array
139	*/
140	public function get_items() {
141	if ( $this->_changed ) {
142	$this->_get_items();
143	}
144
145	return $this->_items;
146	}
147
148	/**
149	* Get pagination in html.
150	*
151	* @param bool $html
152	*
153	* @return array\|string
154	*/
155	function get_pagination( $html = true ) {
156	$pagination = '';
157	$items = $this->get_items();
158
159	if ( $items ) {
160	$args = $this->_query_args;
161
162	if ( ! empty( $args['exclude'] ) ) {
163	$args['post__not_in'] = $args['exclude'];
164	}
165
166	$q = new WP_Query( $args );
167
168	if ( $this->_options['paged'] && $q->max_num_pages > 1 ) {
169	$pagenum_link = html_entity_decode( get_pagenum_link() );
170
171	$query_args = array();
172	$url_parts = explode( '?', $pagenum_link );
173
174	if ( isset( $url_parts[1] ) ) {
175	wp_parse_str( $url_parts[1], $query_args );
176	}
177
178	$pagenum_link = esc_url_raw( remove_query_arg( array_keys( $query_args ), $pagenum_link ) );
179	$pagenum_link = trailingslashit( $pagenum_link ) . '%_%';
180
181	$pagination = array(
182	'base' => $pagenum_link,
183	'total' => $q->max_num_pages,
184	'current' => max( 1, $this->_options['paged'] ),
185	'mid_size' => 1,
186	'add_args' => array_map( 'urlencode', $query_args ),
187	'prev_text' => __( '<', 'learnpress' ),
188	'next_text' => __( '>', 'learnpress' ),
189	'type' => '',
190	);
191
192	if ( $html ) {
193	$pagination = paginate_links( $pagination );
194	}
195	}
196	$this->_changed = false;
197	}
198
199	return $pagination;
200	}
201
202	/**
203	* Return string of list items
204	*
205	* @return string
206	*/
207	public function get_html_items() {
208	ob_start();
209	$items = $this->get_items();
210
211	if ( $items ) {
212	foreach ( $items as $id => $item ) {
213	$type = get_post_type( $item );
214	$type_object = get_post_type_object( $type );
215	$type_name = $type_object ? $type_object->labels->singular_name : '';
216	printf(
217	'
218	<li class="%s" data-id="%2$d" data-type="%4$s" data-text="%3$s">
219	<label>
220	<input type="checkbox" value="%2$d" name="selectedItems[]">
221	<span class="lp-item-text">%3$s (%5$s - #%6$s)</span>
222	</label>
223	</li>
224	',
225	'lp-result-item',
226	$item,
227	esc_attr( get_the_title( $item ) ),
228	$type,
229	$type_name,
230	$item
231	);
232	}
233	} else {
234
235	// @since 3.0.0
236	$item_not_found = apply_filters( 'learn-press/modal-search-items/not-found', __( 'No item found', 'learnpress' ), $this->_options['type'] );
237
238	echo '<li>' . $item_not_found . '</li>';
239	}
240
241	return ob_get_clean();
242	}
243
244	/**
245	* JS Modal template.
246	*/
247	public function js_template() {
248	$view = learn_press_get_admin_view( 'modal-search-items' );
249	include $view;
250	}
251
252	/**
253	* @param array $args
254	* @param string $context
255	* @param string $context_id
256	*
257	* @return mixed
258	*/
259	public static function query_args( $args, $context, $context_id ) {
260	if ( ( LP_ORDER_CPT === get_post_type( $context_id ) ) && ( LP_COURSE_CPT === $args['post_type'] ) ) {
261	if ( ! empty( $args['author'] ) ) {
262	unset( $args['author'] );
263	}
264	}
265
266	return $args;
267	}
268
269	/**
270	* Filter to exclude the items has already added to it's parent.
271	* Each item only use one time
272	*
273	* @param $exclude
274	* @param $type
275	* @param string $context
276	* @param null $context_id
277	*
278	* @return array
279	*/
280	public static function exclude_items( $exclude, $type, $context = '', $context_id = null ) {
281	global $wpdb;
282
283	$used_items = array();
284
285	switch ( $type ) {
286	case 'lp_lesson':
287	case 'lp_quiz':
288	$query = $wpdb->prepare(
289	"
290	SELECT item_id
291	FROM {$wpdb->prefix}learnpress_section_items si
292	INNER JOIN {$wpdb->prefix}learnpress_sections s ON s.section_id = si.section_id
293	INNER JOIN {$wpdb->posts} p ON p.ID = s.section_course_id
294	WHERE %d
295	AND p.post_type = %s
296	",
297	1,
298	LP_COURSE_CPT
299	);
300	$used_items = $wpdb->get_col( $query );
301	break;
302	case 'lp_question':
303	$query = $wpdb->prepare(
304	"
305	SELECT question_id
306	FROM {$wpdb->prefix}learnpress_quiz_questions AS qq
307	INNER JOIN {$wpdb->posts} q ON q.ID = qq.quiz_id
308	WHERE %d
309	AND q.post_type = %s
310	",
311	1,
312	LP_QUIZ_CPT
313	);
314	$used_items = $wpdb->get_col( $query );
315	break;
316
317	}
318
319	if ( $used_items && $exclude ) {
320	$exclude = array_merge( $exclude, $used_items );
321	} elseif ( $used_items ) {
322	$exclude = $used_items;
323	}
324
325	return is_array( $exclude ) ? array_unique( $exclude ) : array();
326	}
327
328	/**
329	* @param $message
330	* @param $type
331	*
332	* @return string
333	*/
334	public static function items_not_found( $message, $type ) {
335	switch ( $type ) {
336	case LP_LESSON_CPT:
337	$message = __( 'There are no available lessons for this course, please use ', 'learnpress' );
338	$message .= '<a target="_blank" href="' . admin_url( 'post-new.php?post_type=lp_lesson' ) . '">' . esc_html__( 'Add new item', 'learnpress' ) . '</a>';
339	break;
340	case LP_QUIZ_CPT:
341	$message = __( 'There are no available quizzes for this course, please use ', 'learnpress' );
342	$message .= '<a target="_blank" href="' . admin_url( 'post-new.php?post_type=lp_quiz' ) . '">' . esc_html__( 'Add new item', 'learnpress' ) . '</a>';
343	break;
344	case LP_QUESTION_CPT:
345	$message = __( 'There are no available questions for this quiz, please use ', 'learnpress' );
346	$message .= '<a target="_blank" href="' . admin_url( 'post-new.php?post_type=lp_question' ) . '">' . esc_html__( 'Add new item', 'learnpress' ) . '</a>';
347	break;
348	}
349
350	return $message;
351	}
352
353	/**
354	* @return bool\|LP_Modal_Search_Items
355	*/
356	public static function instance() {
357	static $instance;
358	if ( is_null( $instance ) ) {
359	$instance = new self();
360	}
361
362	return $instance;
363	}
364	}
365	}
366