class-wp-feed-cache-transient.php
2.64 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
<?php
/**
* Feed API: WP_Feed_Cache_Transient class
*
* @package WordPress
* @subpackage Feed
* @since 4.7.0
*/
/**
* Core class used to implement feed cache transients.
*
* @since 2.8.0
*/
class WP_Feed_Cache_Transient {
/**
* Holds the transient name.
*
* @since 2.8.0
* @access public
* @var string
*/
public $name;
/**
* Holds the transient mod name.
*
* @since 2.8.0
* @access public
* @var string
*/
public $mod_name;
/**
* Holds the cache duration in seconds.
*
* Defaults to 43200 seconds (12 hours).
*
* @since 2.8.0
* @access public
* @var int
*/
public $lifetime = 43200;
/**
* Constructor.
*
* @since 2.8.0
* @since 3.2.0 Updated to use a PHP5 constructor.
* @access public
*
* @param string $location URL location (scheme is used to determine handler).
* @param string $filename Unique identifier for cache object.
* @param string $extension 'spi' or 'spc'.
*/
public function __construct($location, $filename, $extension) {
$this->name = 'feed_' . $filename;
$this->mod_name = 'feed_mod_' . $filename;
$lifetime = $this->lifetime;
/**
* Filters the transient lifetime of the feed cache.
*
* @since 2.8.0
*
* @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).
* @param string $filename Unique identifier for the cache object.
*/
$this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename);
}
/**
* Sets the transient.
*
* @since 2.8.0
* @access public
*
* @param SimplePie $data Data to save.
* @return true Always true.
*/
public function save($data) {
if ( $data instanceof SimplePie ) {
$data = $data->data;
}
set_transient($this->name, $data, $this->lifetime);
set_transient($this->mod_name, time(), $this->lifetime);
return true;
}
/**
* Gets the transient.
*
* @since 2.8.0
* @access public
*
* @return mixed Transient value.
*/
public function load() {
return get_transient($this->name);
}
/**
* Gets mod transient.
*
* @since 2.8.0
* @access public
*
* @return mixed Transient value.
*/
public function mtime() {
return get_transient($this->mod_name);
}
/**
* Sets mod transient.
*
* @since 2.8.0
* @access public
*
* @return bool False if value was not set and true if value was set.
*/
public function touch() {
return set_transient($this->mod_name, time(), $this->lifetime);
}
/**
* Deletes transients.
*
* @since 2.8.0
* @access public
*
* @return true Always true.
*/
public function unlink() {
delete_transient($this->name);
delete_transient($this->mod_name);
return true;
}
}