Changeset 14108 for trunk/wp-includes/functions.php

Timestamp:

04/16/2010 02:08:58 PM (15 years ago)

Author:

nacin

Message:

Introduce the wp_filter_object_list() helper, with an $operator arg. Fixes an intersection bug in get_post_types() and get_taxonomies(). Also switches $operator default from 'or' to 'and' for get_post_stati(). props scribu, fixes #12966.

File:

• trunk/wp-includes/functions.php (modified) (1 diff)

trunk/wp-includes/functions.php

@@ -2902 +2902 @@
  * @return array Sanitized array of IDs
  */
-function wp_parse_id_list($list) {
+function wp_parse_id_list( $list ) {
     if ( !is_array($list) )
         $list = preg_split('/[\s,]+/', $list);
 
     return array_unique(array_map('absint', $list));
+}
+
+/**
+ * Filters a list of objects, based on a set of key => value arguments
+ *
+ * @since 3.0.0
+ *
+ * @param array $list An array of objects to filter
+ * @param array $args An array of key => value arguments to match against each object
+ * @param string $operator The logical operation to perform. 'or' means only one element 
+ *  from the array needs to match; 'and' means all elements must match. The default is 'and'.
+ * @param bool|string $field A field from the object to place instead of the entire object
+ * @return array A list of objects or object fields
+ */
+function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) {
+    if ( !is_array($list) )
+        return array();
+
+    if ( empty($args) )
+        $args = array();
+
+    if ( empty($args) && !$field )
+        return $list;   // nothing to do
+
+    $count = count($args);
+
+    $filtered = array();
+
+    foreach ( $list as $key => $obj ) {
+        $matched = count(array_intersect_assoc(get_object_vars($obj), $args));
+        if ( ('and' == $operator && $matched == $count) || ('or' == $operator && $matched <= $count) )
+            $filtered[$key] = $field ? $obj->$field : $obj;
+    }
+
+    return $filtered;
 }