Changeset 15983 for trunk/wp-includes/meta.php

Timestamp:

10/26/2010 07:11:27 PM (14 years ago)

Author:

scribu

Message:

Add filters to *_metadata() functions. Props sc0ttkclark. Fixes #14766

File:

• trunk/wp-includes/meta.php (modified) (5 diffs)

trunk/wp-includes/meta.php

@@ -46 +46 @@
     $meta_key = stripslashes($meta_key);
 
+    $check = apply_filters( "add_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $unique );
+    if ( null !== $check )
+        return (bool) $check;
+
     if ( $unique && $wpdb->get_var( $wpdb->prepare(
         "SELECT COUNT(*) FROM $table WHERE meta_key = %s AND $column = %d",
@@ -108 +112 @@
     // expected_slashed ($meta_key)
     $meta_key = stripslashes($meta_key);
+
+    $check = apply_filters( "update_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $prev_value );
+    if ( null !== $check )
+        return (bool) $check;
 
     if ( ! $meta_id = $wpdb->get_var( $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s AND $column = %d", $meta_key, $object_id ) ) )
@@ -181 +189 @@
     $meta_value = maybe_serialize( stripslashes_deep($meta_value) );
 
+    $check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all );
+    if ( null !== $check )
+        return (bool) $check;
+
     $query = $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s", $meta_key );
 
@@ -232 +244 @@
         return false;
 
+    $check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, $single );
+    if ( null !== $check ) {
+        if ( !is_array( $check ) )
+            return $check;
+        elseif ( $single )
+            return maybe_unserialize( $check[0] );
+        else
+            return array_map( 'maybe_unserialize', $check );
+    }
+
     $meta_cache = wp_cache_get($object_id, $meta_type . '_meta');
 
@@ -239 +261 @@
     }
 
-    if ( ! $meta_key )
+    if ( !$meta_key )
         return $meta_cache;