betterdocs / includes / class-betterdocs-docs-post-type.php

class-betterdocs-docs-post-type.php in BetterDocs – AI Documentation, Knowledge Base, MCP Server, Docs, Wikis, FAQ & Chatbot 2.0.1, at includes/class-betterdocs-docs-post-type.php

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1	<?php
2
3	/**
4	* Register docs post type and taxonomies.
5	*
6	* @link https://wpdeveloper.com
7	* @since 1.0.0
8	*
9	* @package BetterDocs
10	* @subpackage BetterDocs/includes
11	*/
12
13	use function YoastSEO_Vendor\GuzzleHttp\json_decode;
14
15	/**
16	* Register docs post type and taxonomies class.
17	*
18	*
19	* Also maintains the unique identifier of this plugin as well as the current
20	* version of the plugin.
21	*
22	* @since 1.0.0
23	* @package BetterDocs
24	* @subpackage BetterDocs/includes
25	* @author WPDeveloper <support@wpdeveloper.com>
26	*/
27	class BetterDocs_Docs_Post_Type
28	{
29	public static $post_type = 'docs';
30	public static $menu_position = 5;
31	public static $category = 'doc_category';
32	public static $tag = 'doc_tag';
33	public static $docs_archive;
34	public static $docs_slug;
35	public static $cat_slug;
36
37	/**
38	*
39	* Initialize the class and start calling our hooks and filters
40	*
41	* @since 1.0.0
42	*
43	*/
44	public static function init()
45	{
46	self::$docs_archive = self::get_docs_archive();
47	self::$docs_slug = self::get_docs_slug();
48	self::$cat_slug = self::docs_category_slug();
49	add_action('init', array(__CLASS__, 'register_post'));
50	add_filter('betterdocs_docs_rewrite', array(__CLASS__, 'docs_rewrite'), 9);
51	add_filter('post_type_link', array(__CLASS__, 'docs_show_permalinks'), 1, 3);
52	add_action('init', array(__CLASS__, 'flush_rewrite_rules'), 99999);
53	add_filter('rest_docs_collection_params', array(__CLASS__, 'add_rest_orderby_params'), 10, 1);
54	add_filter('rest_doc_category_collection_params', array(__CLASS__, 'add_rest_orderby_params_on_doc_category'), 10, 1);
55	add_filter('rest_doc_category_query', array(__CLASS__, 'modify_doc_category_rest_query'), 10, 2);
56	add_action('admin_head', array(__CLASS__, 'admin_order_terms'));
57	// doc category taxonomy media upload hooks
58	add_action('doc_category_add_form_fields', array(__CLASS__, 'add_doc_category_meta'), 10, 2);
59	add_action('doc_category_edit_form_fields', array(__CLASS__, 'update_doc_category_meta'), 10, 2);
60	add_action('created_doc_category', array(__CLASS__, 'save_doc_category_meta'), 10, 2);
61	add_action('edited_doc_category', array(__CLASS__, 'updated_doc_category_meta'), 10, 2);
62	add_action('admin_enqueue_scripts', array(__CLASS__, 'load_media'));
63	add_action('admin_footer', array(__CLASS__, 'add_script'));
64	// add doc category image on rest api
65	add_action('rest_api_init', array(__CLASS__, 'add_doc_category_meta_rest_api'), 10, 2);
66	}
67
68	public static function get_docs_slug()
69	{
70	$builtin_doc_page = BetterDocs_DB::get_settings('builtin_doc_page');
71	$docs_slug = BetterDocs_DB::get_settings('docs_slug');
72	$docs_page = BetterDocs_DB::get_settings('docs_page');
73
74	if ($builtin_doc_page == 1 && $docs_slug) {
75	$docs_post_slug = $docs_slug;
76	} elseif ($builtin_doc_page != 1 && $docs_page) {
77	$post_info = get_post($docs_page);
78	$docs_post_slug = $post_info->post_name;
79	} else {
80	$docs_post_slug = 'docs';
81	}
82
83	return $docs_post_slug;
84	}
85
86	public static function get_docs_archive()
87	{
88	$builtin_doc_page = BetterDocs_DB::get_settings('builtin_doc_page');
89	$docs_slug = BetterDocs_DB::get_settings('docs_slug');
90	$docs_page = BetterDocs_DB::get_settings('docs_page');
91
92	if ($builtin_doc_page == 1 && $docs_slug) {
93	$docs_post_slug = $docs_slug;
94	} elseif ($builtin_doc_page != 1 && $docs_page) {
95	$post_info = get_post($docs_page);
96	$docs_post_slug = $post_info->post_name;
97	} else {
98	$docs_post_slug = 'docs';
99	}
100
101	return $docs_post_slug;
102	}
103
104	public static function docs_category_slug()
105	{
106	$category_slug = BetterDocs_DB::get_settings('category_slug');
107
108	if (empty($category_slug)) {
109	$category_slug = 'docs-category';
110	}
111
112	return $category_slug;
113	}
114
115	/**
116	*
117	* Register post type and taxonomies
118	*
119	* @since 1.0.0
120	*
121	*/
122	public static function register_post()
123	{
124	$singular_name = BetterDocs_DB::get_settings('breadcrumb_doc_title');
125
126	/**
127	* Register category taxonomy
128	*/
129	$category_labels = array(
130	'name' => esc_html__('Docs Categories', 'betterdocs'),
131	'singular_name' => esc_html__('Docs Category', 'betterdocs'),
132	'all_items' => esc_html__('Docs Categories', 'betterdocs'),
133	'parent_item' => esc_html__('Parent Docs Category', 'betterdocs'),
134	'parent_item_colon' => esc_html__('Parent Docs Category:', 'betterdocs'),
135	'edit_item' => esc_html__('Edit Category', 'betterdocs'),
136	'update_item' => esc_html__('Update Category', 'betterdocs'),
137	'add_new_item' => esc_html__('Add New Docs Category', 'betterdocs'),
138	'new_item_name' => esc_html__('New Docs Name', 'betterdocs'),
139	'menu_name' => esc_html__('Categories', 'betterdocs')
140	);
141
142	$category_args = array(
143	'hierarchical' => true,
144	'public' => true,
145	'labels' => $category_labels,
146	'show_ui' => true,
147	'show_admin_column' => true,
148	'query_var' => true,
149	'show_in_rest' => true,
150	'has_archive' => true,
151	);
152
153	$category_args['rewrite'] = apply_filters('betterdocs_category_rewrite', array('slug' => self::$cat_slug, 'with_front' => false));
154
155	register_taxonomy(self::$category, array(self::$post_type), $category_args);
156
157	/**
158	* Register post type
159	*/
160	$labels = array(
161	'name' => ($singular_name) ? $singular_name : 'Docs',
162	'singular_name' => ($singular_name) ? $singular_name : 'Docs',
163	'menu_name' => esc_html__('BetterDocs', 'betterdocs'),
164	'name_admin_bar' => esc_html__('Docs', 'betterdocs'),
165	'add_new' => esc_html__('Add New', 'betterdocs'),
166	'add_new_item' => esc_html__('Add New Docs', 'betterdocs'),
167	'new_item' => esc_html__('New Docs', 'betterdocs'),
168	'edit_item' => esc_html__('Edit Docs', 'betterdocs'),
169	'view_item' => esc_html__('View Docs', 'betterdocs'),
170	'all_items' => esc_html__('All Docs', 'betterdocs'),
171	'search_items' => esc_html__('Search Docs', 'betterdocs'),
172	'parent_item_colorn' => null,
173	'not_found' => esc_html__('No docs found', 'betterdocs'),
174	'not_found_in_trash' => esc_html__('No docs found in trash', 'betterdocs')
175	);
176
177	$betterdocs_articles_caps = apply_filters('betterdocs_articles_caps', 'edit_posts', 'article_roles');
178
179	$args = array(
180	'labels' => $labels,
181	'description' => esc_html__('Add new doc from here', 'betterdocs'),
182	'public' => true,
183	'public_queryable' => true,
184	'exclude_from_search' => false,
185	'show_ui' => true,
186	'show_in_menu' => false,
187	'show_in_admin_bar' => $betterdocs_articles_caps,
188	'query_var' => true,
189	'capability_type' => 'post',
190	'hierarchical' => true,
191	'menu_position' => self::$menu_position,
192	'show_in_rest' => true,
193	'menu_icon' => BETTERDOCS_ADMIN_URL . '/assets/img/betterdocs-icon-white.svg', 100,
194	'supports' => array('title', 'editor', 'thumbnail', 'excerpt', 'author', 'revisions', 'custom-fields', 'comments')
195	);
196
197	$builtin_doc_page = BetterDocs_DB::get_settings('builtin_doc_page');
198
199	if ($builtin_doc_page == 'off') {
200	$args['has_archive'] = false;
201	} else {
202	$args['has_archive'] = self::$docs_archive;
203	}
204
205	$args['rewrite'] = apply_filters('betterdocs_docs_rewrite', array('slug' => self::$docs_archive, 'with_front' => false));
206
207	register_post_type(self::$post_type, $args);
208
209	/**
210	* Register tag taxonomy
211	*/
212	$tags_labels = array(
213	'name' => esc_html__('Docs Tags', 'betterdocs'),
214	'singular_name' => esc_html__('Tag', 'betterdocs'),
215	'search_items' => esc_html__('Search Tags', 'betterdocs'),
216	'popular_items' => esc_html__('Popular Tags', 'betterdocs'),
217	'all_items' => esc_html__('All Tags', 'betterdocs'),
218	'parent_item' => null,
219	'parent_item_colon' => null,
220	'edit_item' => esc_html__('Edit Tag', 'betterdocs'),
221	'update_item' => esc_html__('Update Tag', 'betterdocs'),
222	'add_new_item' => esc_html__('Add New Tag', 'betterdocs'),
223	'new_item_name' => esc_html__('New Tag Name', 'betterdocs'),
224	'separate_items_with_commas' => esc_html__('Separate tags with commas', 'betterdocs'),
225	'add_or_remove_items' => esc_html__('Add or remove tags', 'betterdocs'),
226	'choose_from_most_used' => esc_html__('Choose from the most used tags', 'betterdocs'),
227	'menu_name' => esc_html__('Tags', 'betterdocs'),
228	);
229
230	$tag_args = array(
231	'hierarchical' => true,
232	'labels' => $tags_labels,
233	'show_ui' => true,
234	'update_count_callback' => '_update_post_term_count',
235	'show_admin_column' => true,
236	'query_var' => true,
237	'show_in_rest' => true
238	);
239
240	$tag_slug = BetterDocs_DB::get_settings('tag_slug');
241
242	if ($tag_slug) {
243	$tag_args['rewrite'] = array('slug' => $tag_slug, 'with_front' => false);
244	} else {
245	$tag_args['rewrite'] = array('slug' => 'docs-tag', 'with_front' => false);
246	}
247
248	register_taxonomy(self::$tag, array(self::$post_type), $tag_args);
249	}
250
251	/**
252	* Add menu_order param to the list of rest api orderby values
253	*/
254	public static function add_rest_orderby_params($params)
255	{
256	$params['orderby']['enum'][] = 'menu_order';
257	return $params;
258	}
259
260	/**
261	* Add doc_category_order param to the list of rest api orderby values on doc_category taxonomy
262	*/
263	public static function add_rest_orderby_params_on_doc_category($params)
264	{
265	$params['orderby']['enum'][] = 'doc_category_order';
266	return $params;
267	}
268
269	/**
270	* Modify doc_category rest query for doc_category_order meta key
271	*/
272	public static function modify_doc_category_rest_query($args, $request)
273	{
274	$order_by = $request->get_param('orderby');
275	if (isset($order_by) && 'doc_category_order' === $order_by) {
276	$args['meta_key'] = $order_by;
277	$args['orderby'] = 'meta_value_num';
278	}
279	return $args;
280	}
281
282	/**
283	* load media for taxonomy category image
284	*
285	* @since 1.0.0
286	*/
287	public static function load_media()
288	{
289	wp_enqueue_media();
290	}
291
292	/**
293	* Default the taxonomy's terms' order if it's not set.
294	*
295	* @param string $tax_slug The taxonomy's slug.
296	*/
297	public static function default_term_order($tax_slug)
298	{
299	$terms = get_terms($tax_slug, array('hide_empty' => false));
300	$order = self::get_max_taxonomy_order($tax_slug);
301
302	foreach ($terms as $term) {
303	if (!get_term_meta($term->term_id, 'doc_category_order', true)) {
304	update_term_meta($term->term_id, 'doc_category_order', $order);
305	$order++;
306	}
307	}
308	}
309
310	/**
311	* Order the terms on the admin side.
312	*/
313	public static function admin_order_terms()
314	{
315	$screen = function_exists('get_current_screen') ? get_current_screen() : '';
316	$screen_id = isset($screen->id) ? $screen->id : '';
317	if (in_array($screen_id, array('toplevel_page_betterdocs-admin', 'betterdocs_page_betterdocs-settings'))) {
318	self::default_term_order('doc_category');
319	}
320
321	if (!isset($_GET['orderby']) && !empty($screen) && !empty($screen->base) && $screen->base === 'edit-tags' && $screen->taxonomy === 'doc_category') {
322	self::default_term_order($screen->taxonomy);
323	add_filter('terms_clauses', array(__CLASS__, 'set_tax_order'), 10, 3);
324	}
325	}
326
327	/**
328	* Get the maximum doc_category_order for this taxonomy. This will be applied to terms that don't have a tax position.
329	*/
330	private static function get_max_taxonomy_order($tax_slug)
331	{
332	global $wpdb;
333
334	$max_term_order = $wpdb->get_col(
335	$wpdb->prepare(
336	"SELECT MAX( CAST( tm.meta_value AS UNSIGNED ) )
337	FROM $wpdb->terms t
338	JOIN $wpdb->term_taxonomy tt ON t.term_id = tt.term_id AND tt.taxonomy = '%s'
339	JOIN $wpdb->termmeta tm ON tm.term_id = t.term_id WHERE tm.meta_key = 'doc_category_order'",
340	$tax_slug
341	)
342	);
343
344	$max_term_order = is_array($max_term_order) ? current($max_term_order) : 0;
345
346	return (int) $max_term_order === 0 \|\| empty($max_term_order) ? 1 : (int) $max_term_order + 1;
347	}
348
349	/**
350	* Re-Order the taxonomies based on the doc_category_order value.
351	*
352	* @param array $pieces Array of SQL query clauses.
353	* @param array $taxonomies Array of taxonomy names.
354	* @param array $args Array of term query args.
355	*/
356	public static function set_tax_order($pieces, $taxonomies, $args)
357	{
358	foreach ($taxonomies as $taxonomy) {
359	global $wpdb;
360
361	if ($taxonomy === 'doc_category') {
362	$join_statement = " LEFT JOIN $wpdb->termmeta AS term_meta ON t.term_id = term_meta.term_id AND term_meta.meta_key = 'doc_category_order'";
363
364	if (!self::does_substring_exist($pieces['join'], $join_statement)) {
365	$pieces['join'] .= $join_statement;
366	}
367
368	$pieces['orderby'] = 'ORDER BY CAST( term_meta.meta_value AS UNSIGNED )';
369	}
370	}
371
372	return $pieces;
373	}
374
375	/**
376	* Order the taxonomies on the front end.
377	*/
378	public static function front_end_order_terms()
379	{
380	if (!is_admin()) {
381	add_filter('terms_clauses', array(__CLASS__, 'set_tax_order'), 10, 3);
382	}
383	}
384
385	/**
386	* Check if a substring exists inside a string.
387	*
388	* @param string $string The main string (haystack) we're searching in.
389	* @param string $substring The substring we're searching for.
390	*
391	* @return bool True if substring exists, else false.
392	*/
393	protected static function does_substring_exist($string, $substring)
394	{
395	return strstr($string, $substring) !== false;
396	}
397
398	/**
399	* Default the taxonomy's terms' order if it's not set.
400	*
401	* @param string $tax_slug The taxonomy's slug.
402	*/
403	public static function get_manage_docs()
404	{
405	$terms = get_terms('knowledge_base', array('hide_empty' => false));
406
407	if ($terms) {
408	echo '<select name="term_meta[knowledge_base]" id="knowledge_base">';
409	echo '<option> ' . esc_html__('Select an option') . ' </option>';
410
411	foreach ($terms as $term) {
412	echo '<option value="' . $term->slug . '">' . $term->name . '</option>';
413	}
414
415	echo '</select>';
416	}
417	}
418
419	/**
420	* Add a form field in the new category page
421	*
422	* @since 1.0.0
423	*/
424	public static function add_doc_category_meta($taxonomy)
425	{
426	do_action('betterdocs_doc_category_add_form_before');
427
428	echo '<div class="form-field term-group">
429	<label for="doc-category-order">' . esc_html__('Order', 'betterdocs') . '</label>
430	<input type="number" id="doc-category-order" style="width:100px" name="term_meta[order]" value="">
431	</div>
432
433	<div class="form-field term-group">
434	<label for="doc-category-image-id">' . esc_html__('Category Icon', 'betterdocs') . '</label>
435	<input type="hidden" id="doc-category-image-id" name="term_meta[image-id]" class="custom_media_url" value="">
436	<div id="doc-category-image-wrapper">
437	<img src="' . BETTERDOCS_ADMIN_URL . 'assets/img/betterdocs-cat-icon.svg" alt="">
438	</div>
439	<p>
440	<input type="button" class="button button-secondary betterdocs_tax_media_button"
441	id="betterdocs_tax_media_button" name="betterdocs_tax_media_button"
442	value="' . esc_html__('Add Image', 'betterdocs') . '" />
443	<input type="button" class="button button-secondary doc_tax_media_remove" id="doc_tax_media_remove"
444	name="doc_tax_media_remove"
445	value="' . esc_html__('Remove Image', 'betterdocs') . '" />
446	</p>
447	</div>';
448	}
449
450	/**
451	* Save the form field
452	*
453	* @since 1.0.0
454	*/
455	public static function save_doc_category_meta($term_id)
456	{
457	if (isset($_POST['term_meta'])) {
458	$term_meta = get_option("doc_category_$term_id");
459	$cat_keys = array_keys($_POST['term_meta']);
460	foreach ($cat_keys as $key) {
461	if (isset($_POST['term_meta'][$key])) {
462	add_term_meta($term_id, "doc_category_$key", $_POST['term_meta'][$key]);
463	$term_meta[$key] = $_POST['term_meta'][$key];
464	}
465	}
466	}
467	if (isset($_POST['doc_category_kb'])) {
468	$doc_category_kb = $_POST['doc_category_kb'];
469	update_term_meta($term_id, "doc_category_knowledge_base", $doc_category_kb);
470	}
471	}
472
473	/**
474	* Edit the form field
475	*
476	* @since 1.0.0
477	*/
478	public static function update_doc_category_meta($term, $taxonomy)
479	{ ?>
480	<?php
481	$term_meta = get_option("doc_category_$term->term_id");
482	$cat_order = get_term_meta($term->term_id, 'doc_category_order', true);
483	$cat_icon_id = get_term_meta($term->term_id, 'doc_category_image-id', true);
484
485	do_action('betterdocs_doc_category_update_form_before', $term);
486
487	?>
488
489	<tr class="form-field term-group-wrap">
490	<th scope="row">
491	<label for="doc-category-id"><?php esc_html_e('Category Id', 'betterdocs'); ?></label>
492	</th>
493	<td>
494	<input type="text" id="doc-category-id" style="width:100px" name="" value="<?php echo esc_attr($_GET["tag_ID"]) ?>" readonly>
495	</td>
496	</tr>
497	<tr class="form-field term-group-wrap">
498	<th scope="row">
499	<label for="doc-category-order"><?php esc_html_e('Order', 'betterdocs'); ?></label>
500	</th>
501	<td>
502	<input type="number" id="doc-category-order" style="width:100px" name="term_meta[order]" value="<?php echo $cat_order ? esc_attr($cat_order) : ''; ?>">
503	</td>
504	</tr>
505	<tr class="form-field term-group-wrap batterdocs-cat-media-upload">
506	<th scope="row">
507	<label for="doc-category-image-id"><?php esc_html_e('Image', 'betterdocs'); ?></label>
508	</th>
509	<td>
510	<input type="hidden" id="doc-category-image-id" name="term_meta[image-id]" value="<?php echo esc_attr($cat_icon_id); ?>">
511	<div id="doc-category-image-wrapper">
512	<?php
513	if ($cat_icon_id) {
514	echo wp_get_attachment_image($cat_icon_id, 'thumbnail');
515	} else {
516	echo '<img src="' . BETTERDOCS_ADMIN_URL . 'assets/img/betterdocs-cat-icon.svg" alt="">';
517	}
518	?>
519	</div>
520	<p>
521	<input type="button" class="button button-secondary betterdocs_tax_media_button" id="betterdocs_tax_media_button" name="betterdocs_tax_media_button" value="<?php esc_html_e('Add Image', 'betterdocs'); ?>" />
522	<input type="button" class="button button-secondary doc_tax_media_remove" id="doc_tax_media_remove" name="doc_tax_media_remove" value="<?php esc_html_e('Remove Image', 'betterdocs'); ?>" />
523	</p>
524	</td>
525	</tr>
526	<?php
527	}
528
529	/*
530	* Update the form field value
531	*
532	* @since 1.0.0
533	*/
534	public static function updated_doc_category_meta($term_id)
535	{
536	if (isset($_POST['term_meta'])) {
537	$cat_keys = array_keys($_POST['term_meta']);
538	foreach ($cat_keys as $key) {
539	if (isset($_POST['term_meta'][$key])) {
540	update_term_meta($term_id, "doc_category_$key", $_POST['term_meta'][$key]);
541	}
542	}
543	}
544	if (isset($_POST['doc_category_kb'])) {
545	$doc_category_kb = $_POST['doc_category_kb'];
546	update_term_meta($term_id, "doc_category_knowledge_base", $doc_category_kb);
547	}
548	}
549
550	/*
551	* Add script
552	*
553	* @since 1.0.0
554	*/
555	public static function add_script()
556	{
557
558	global $current_screen;
559	if ($current_screen->id == 'edit-doc_category') {
560
561	?>
562	<script>
563	jQuery(document).ready(function($) {
564
565	function betterdocs_media_upload(button_class) {
566	var _custom_media = true,
567	_betterdocs_send_attachment = wp.media.editor.send.attachment;
568	$('body').on('click', button_class, function(e) {
569	var button_id = '#' + $(this).attr('id');
570	var send_attachment_bkp = wp.media.editor.send.attachment;
571	var button = $(button_id);
572	_custom_media = true;
573	wp.media.editor.send.attachment = function(props, attachment) {
574	if (_custom_media) {
575	$('#doc-category-image-id').val(attachment.id);
576	$('#doc-category-image-wrapper').html(
577	'<img class="custom_media_image" src="" style="margin:0;padding:0;max-height:100px;float:none;" />'
578	);
579	$('#doc-category-image-wrapper .custom_media_image').attr('src', attachment
580	.url).css('display', 'block');
581	} else {
582	return _betterdocs_send_attachment.apply(button_id, [props, attachment]);
583	}
584	}
585	wp.media.editor.open(button);
586	return false;
587	});
588	}
589
590	betterdocs_media_upload('.betterdocs_tax_media_button.button');
591
592	$('body').on('click', '.doc_tax_media_remove', function() {
593	$('#doc-category-image-id').val('');
594	$('#doc-category-image-wrapper').html(
595	'<img class="custom_media_image" src="" style="margin:0;padding:0;max-height:100px;float:none;" />'
596	);
597	});
598
599	$(document).ajaxComplete(function(event, xhr, settings) {
600	var queryStringArr = settings.data.split('&');
601	if ($.inArray('action=add-tag', queryStringArr) !== -1) {
602	var xml = xhr.responseXML;
603	$response = $(xml).find('term_id').text();
604	if ($response != "") {
605	// Clear the thumb image
606	$('#doc-category-image-wrapper').html('');
607	}
608	}
609	});
610	});
611	</script>
612	<?php }
613	}
614
615	/**
616	* Filtering post type rewrite rule.
617	*
618	* @param [type] $rewrite
619	* @return array $rewrite
620	*/
621	public static function docs_rewrite($rewrite)
622	{
623	$permalink = BetterDocs_DB::get_settings('permalink_structure');
624	if (!empty($permalink)) {
625	if (class_exists('BetterDocs_Multiple_Kb') && BetterDocs_Multiple_Kb::get_multiple_kb() != 1) {
626	$permalink = preg_replace('/%knowledge_base%\/?/', '', $permalink);
627	}
628	$rewrite = array('slug' => trim($permalink, '/'), 'with_front' => false);
629	}
630	return $rewrite;
631	}
632
633	/**
634	* Replacing %doc_category% placeholder in permalink.
635	*
636	* @param [type] $url
637	* @param [type] $post
638	* @param boolean $leavename
639	* @return string $url
640	*/
641	public static function docs_show_permalinks($url, $post = null, $leavename = false)
642	{
643	if ($post->post_type != 'docs') {
644	return $url;
645	}
646	$doc_category = 'doc_category';
647	$cat_tag = '%' . $doc_category . '%';
648	$cat_terms = wp_get_object_terms($post->ID, $doc_category);
649
650	if (is_array($cat_terms) && sizeof($cat_terms) > 0) {
651	$doccat_terms = $cat_terms[0]->slug;
652	} else {
653	$doccat_terms = 'uncategorized';
654	}
655
656	if (class_exists('BetterDocs_Multiple_Kb') && BetterDocs_Multiple_Kb::get_multiple_kb() != 1) {
657	$url = preg_replace('/%knowledge_base%\/?/', '', $url);
658	}
659	return str_replace($cat_tag, $doccat_terms, $url);
660	}
661
662	public static function flush_rewrite_rules()
663	{
664	// Get the rewrite rules
665	$rules = get_option('rewrite_rules');
666	if (is_array($rules)) {
667	$rules = implode('', $rules);
668	}
669	if (!strpos($rules, 'docs')) {
670	flush_rewrite_rules();
671	}
672	}
673
674	/**
675	* Resister doc_category image field in rest API
676	*/
677	public static function add_doc_category_meta_rest_api()
678	{
679	register_rest_field('doc_category', 'thumbnail', [
680	'get_callback' => array(__CLASS__, 'doc_category_thumbnail_image'),
681	'update_callback' => null,
682	'schema' => [
683	'description' => 'Holds the thumbnail URL of doc category',
684	'type' => 'string',
685	'format' => 'url',
686	]
687	]);
688	}
689
690	/**
691	*
692	* add doc_category meta field callback function
693	*
694	* @param [string\|array] $object
695	* @return string $url
696	*/
697	public static function doc_category_thumbnail_image($object)
698	{
699	$attachment_id = get_term_meta($object['id'], 'doc_category_image-id', true);
700	if (!$attachment_id) {
701	return;
702	}
703	$url = wp_get_attachment_url($attachment_id);
704	return $url;
705	}
706	}
707
708	BetterDocs_Docs_Post_Type::init();
709