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Changeset 18580


Ignore:
Timestamp:
08/22/2011 05:39:44 PM (7 years ago)
Author:
ryan
Message:

Introduce wp_cache_incr() and wp_cache_decr(). fixes #18494

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/wp-includes/cache.php

    r17613 r18580  
    4545
    4646/**
     47 * Decrement numeric cache item's value
     48 *
     49 * @since 3.3.0
     50 * @uses $wp_object_cache Object Cache Class
     51 * @see WP_Object_Cache::decr()
     52 *
     53 * @param int|string $key The cache ID to increment
     54 * @param int $offset The amount by which to decrement the item's value.  Default is 1.
     55 * @param string $flag The group the key is in.
     56 * @return false|int False on failure, the item's new value on success.
     57 */
     58function wp_cache_decr( $key, $offset = 1, $flag = '' ) {
     59    global $wp_object_cache;
     60
     61    return $wp_object_cache->decr( $key, $offset, $flag );
     62}
     63
     64/**
    4765 * Removes the cache contents matching ID and flag.
    4866 *
     
    92110
    93111    return $wp_object_cache->get($id, $flag);
     112}
     113
     114/**
     115 * Increment numeric cache item's value
     116 *
     117 * @since 3.3.0
     118 * @uses $wp_object_cache Object Cache Class
     119 * @see WP_Object_Cache::incr()
     120 *
     121 * @param int|string $key The cache ID to increment
     122 * @param int $offset The amount by which to increment the item's value.  Default is 1.
     123 * @param string $flag The group the key is in.
     124 * @return false|int False on failure, the item's new value on success.
     125 */
     126function wp_cache_incr( $key, $offset = 1, $flag = '' ) {
     127    global $wp_object_cache;
     128
     129    return $wp_object_cache->incr( $key, $offset, $flag );
    94130}
    95131
     
    279315        $this->global_groups = array_merge($this->global_groups, $groups);
    280316        $this->global_groups = array_unique($this->global_groups);
     317    }
     318
     319    /**
     320     * Decrement numeric cache item's value
     321     *
     322     * @since 3.3.0
     323     *
     324     * @param int|string $id The cache ID to increment
     325     * @param int $offset The amount by which to decrement the item's value.  Default is 1.
     326     * @param string $flag The group the key is in.
     327     * @return false|int False on failure, the item's new value on success.
     328     */
     329    function decr( $id, $offset = 1, $group = 'default' ) {
     330        if ( ! isset( $this->cache[ $group ][ $id ] ) )
     331            return false;
     332
     333        if ( ! is_numeric( $this->cache[ $group ][ $id ] ) )
     334            $this->cache[ $group ][ $id ] = 0;
     335
     336        $offset = (int) $offset;
     337
     338        $this->cache[ $group ][ $id ] -= $offset;
     339
     340        if ( $this->cache[ $group ][ $id ] < 0 )
     341            $this->cache[ $group ][ $id ] = 0;
     342
     343        return $this->cache[ $group ][ $id ];
    281344    }
    282345
     
    362425        $this->cache_misses += 1;
    363426        return false;
     427    }
     428
     429    /**
     430     * Increment numeric cache item's value
     431     *
     432     * @since 3.3.0
     433     *
     434     * @param int|string $id The cache ID to increment
     435     * @param int $offset The amount by which to increment the item's value.  Default is 1.
     436     * @param string $flag The group the key is in.
     437     * @return false|int False on failure, the item's new value on success.
     438     */
     439    function incr( $id, $offset = 1, $group = 'default' ) {
     440        if ( ! isset( $this->cache[ $group ][ $id ] ) )
     441            return false;
     442
     443        if ( ! is_numeric( $this->cache[ $group ][ $id ] ) )
     444            $this->cache[ $group ][ $id ] = 0;
     445
     446        $offset = (int) $offset;
     447
     448        $this->cache[ $group ][ $id ] += $offset;
     449
     450        if ( $this->cache[ $group ][ $id ] < 0 )
     451            $this->cache[ $group ][ $id ] = 0;
     452
     453        return $this->cache[ $group ][ $id ];
    364454    }
    365455
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