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Stabilize how WordPress hooks into SimplePie to implement transient caching.

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Since a plugin can load a previous (< 1.3) version of SimplePie before we do,
we need to be compatible with our old method of overriding SimplePie_Cache::create().

SimplePie_Cache::create() was converted to static in 1.3 (as it was called),
requiring that we create two different definitions of WP_Feed_Cache (extends
SimplePie_Cache). Instead, we can use 1.3's new object registry, and leave
the old WP_Feed_Cache to SimplePie 1.2 versions.

see #21183.



git-svn-id: https://develop.svn.wordpress.org/trunk@21652 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Andrew Nacin
2012-08-29 00:25:52 +00:00
parent 01527025c9
commit 3064c6d713
2 changed files with 24 additions and 12 deletions
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wp-includes/feed.php
+10 -2
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@@ -532,9 +532,17 @@ function fetch_feed($url) {
require_once (ABSPATH . WPINC . '/class-feed.php');
$feed = new SimplePie();
if ( version_compare( SIMPLEPIE_VERSION, '1.3-dev', '>' ) ) {
$feed->set_cache_location( 'wp-transient' );
$feed->registry->register( 'Cache', 'WP_Feed_Cache_Transient' );
$feed->registry->register( 'File', 'WP_SimplePie_File' );
} else {
$feed->set_cache_class( 'WP_Feed_Cache' );
$feed->set_file_class( 'WP_SimplePie_File' );
}
$feed->set_feed_url($url);
$feed->set_cache_class('WP_Feed_Cache');
$feed->set_file_class('WP_SimplePie_File');
$feed->set_cache_duration(apply_filters('wp_feed_cache_transient_lifetime', 43200, $url));
do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
$feed->init();