groups / lib / core / class-groups-cache.php

class-groups-cache.php in Groups – Memberships and Access Control 1.10.3, at lib/core/class-groups-cache.php

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1	<?php
2	/**
3	* class-groups-cache.php
4	*
5	* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
6	*
7	* This code is released under the GNU General Public License.
8	* See COPYRIGHT.txt and LICENSE.txt.
9	*
10	* This code is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* This header and all notices must be kept intact.
16	*
17	* @author Karim Rahimpur
18	* @package groups
19	* @since groups 1.9.0
20	*/
21
22	if ( !defined( 'ABSPATH' ) ) {
23	exit;
24	}
25
26	/**
27	* Cache service.
28	*
29	* Uses cache objects to encapsulate cached data.
30	*
31	* This makes us completely independent from the problems related to
32	* incomplete cache implementations that ignore the $found parameter used
33	* to disambiguate cache misses with wp_cache_get() when false is retrieved.
34	*/
35	class Groups_Cache {
36
37	/**
38	* Default cache group.
39	* @var string
40	*/
41	const CACHE_GROUP = 'groups';
42
43	/**
44	* Retrieve an entry from cache.
45	*
46	* @param string $key
47	* @param string $group
48	* @return Groups_Cache_Object\|null returns a cache object on hit, null on cache miss
49	*/
50	public static function get( $key, $group = self::CACHE_GROUP ) {
51	$found = null;
52	$value = wp_cache_get( $key, $group, false, $found );
53	if ( !( $value instanceof Groups_Cache_Object ) ) {
54	$value = null;
55	}
56	return $value;
57	}
58
59	/**
60	* Store an entry in cache.
61	*
62	* @param string $key
63	* @param string $value
64	* @param string $group
65	* @return true if successful, otherwise false
66	*/
67	public static function set( $key, $value, $group = self::CACHE_GROUP ) {
68	$object = new Groups_Cache_Object( $key, $value );
69	return wp_cache_set( $key, $object, $group );
70	}
71
72	/**
73	* Delete a cache entry.
74	*
75	* @param string $key
76	* @param string $group
77	* @return true if successful, otherwise false
78	*/
79	public static function delete( $key, $group = self::CACHE_GROUP ) {
80	return wp_cache_delete( $key, $group );
81	}
82	}
83