wp-optimize / compatibility / class-wpo-polylang-compatibility.php

class-wpo-polylang-compatibility.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.2, at compatibility/class-wpo-polylang-compatibility.php

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1	<?php
2	if (!defined('ABSPATH')) {
3	die('No direct access allowed');
4	}
5
6	/**
7	* Adds compatibility for Polylang plugin.
8	*/
9	class WPO_Polylang_Compatibility {
10
11	/**
12	* Instance of this class
13	*
14	* @var WPO_Polylang_Compatibility\|null
15	*/
16	protected static $instance = null;
17
18	/**
19	* Constructor.
20	*/
21	private function __construct() {
22	// Add action hooks to delete cache for all languages
23	add_action('wpo_single_post_cache_deleted', array($this, 'polylang_delete_post_cache_for_all_languages'));
24	add_action('wpo_single_post_feed_cache_deleted', array($this, 'polylang_delete_post_feed_cache_for_all_languages'));
25	}
26
27	/**
28	* Returns singleton instance.
29	*
30	* @return WPO_Polylang_Compatibility
31	*/
32	public static function instance() {
33	if (null === self::$instance) {
34	self::$instance = new self();
35	}
36
37	return self::$instance;
38	}
39
40	/**
41	* Deletes cache files for all connected languages for a post.
42	*
43	* @param int $deleted_post_id Post id whose cache file is already deleted.
44	*/
45	public function polylang_delete_post_cache_for_all_languages($deleted_post_id) {
46
47	// Check if polylang translation function is available
48	if (!function_exists('pll_get_post_translations')) {
49	return;
50	}
51
52	$translated_post_ids = pll_get_post_translations($deleted_post_id);
53
54	// Delete cache for each translated post
55	foreach ($translated_post_ids as $post_id) {
56	if ($deleted_post_id !== $post_id) {
57	WPO_Page_Cache::really_delete_single_post_cache($post_id);
58	}
59	}
60	if (!empty($translated_post_ids)) WPO_Page_Cache::instance()->file_log("Cache for associated Polylang translation posts for Title: {{title}} have been purged", $deleted_post_id);
61	}
62
63	/**
64	* Deletes cache files for all connected languages for a post feed.
65	*
66	* @param int $deleted_post_id Post id whose cache file for feed is already deleted.
67	*/
68	public function polylang_delete_post_feed_cache_for_all_languages($deleted_post_id) {
69
70	// Check if polylang translation function is available
71	if (!function_exists('pll_get_post_translations')) {
72	return;
73	}
74
75	$translated_post_ids = pll_get_post_translations($deleted_post_id);
76	$is_cache_purged = false;
77
78	// Delete cache for each translated post
79	foreach ($translated_post_ids as $post_id) {
80	if ($deleted_post_id !== $post_id) {
81	WPO_Page_Cache::really_delete_post_feed_cache($post_id);
82	$is_cache_purged = true;
83	}
84	}
85	if ($is_cache_purged) WPO_Page_Cache::instance()->file_log("Cache for associated Polylang translation posts' feeds for Title: {{title}} have been purged", $deleted_post_id);
86	}
87	}
88