Ticket #4804: 4804.patch

bp-activity/bp-activity-cache.php

@@ -32 +32 @@
                 'meta_table'       => $bp->activity->table_name_meta,
                 'cache_key_prefix' => 'bp_activity_meta'
         );
-        
+
         bp_update_meta_cache( $cache_args );
 }
+
+/**
+ * Clear the cache for all metadata of a given activity
+ *
+ * @param int $activity_id
+ */
+function bp_activity_clear_meta_cache_for_activity( $activity_id ) {
+        global $wp_object_cache;
+
+        if ( is_object( $wp_object_cache ) && ! empty( $wp_object_cache->cache['bp'] ) ) {
+                foreach ( $wp_object_cache->cache['bp'] as $ckey => $cvalue ) {
+                        if ( 0 === strpos( $ckey, 'bp_activity_meta_' . $activity_id ) ) {
+                                wp_cache_delete( $ckey, 'bp' );
+                        }
+                }
+        }
+}

bp-activity/bp-activity-classes.php

@@ -435 +435 @@
                 else
                         $activity_ids = implode ( ',', array_map( 'absint', explode ( ',', $activity_ids ) ) );
 
+                foreach ( (array) $activity_ids as $activity_id ) {
+                        bp_activity_clear_meta_cache_for_activity( $activity_id );
+                }
+
                 return $wpdb->query( "DELETE FROM {$bp->activity->table_name_meta} WHERE activity_id IN ({$activity_ids})" );
         }