Caching getParentsOrdered() in private var

paulzi · Jul 29, 2015 · a248c5c · a248c5c
1 parent f2d9a80
commit a248c5c
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/AdjacencyListBehavior.php b/AdjacencyListBehavior.php
@@ -70,6 +70,11 @@ class AdjacencyListBehavior extends Behavior
      */
     protected $node;
 
+    /**
+     * @var ActiveRecord[]
+     */
+    private $_parentsOrdered;
+
     /**
      * @var array
      */
@@ -116,6 +121,9 @@ public function getParents($depth = null)
      */
     public function getParentsOrdered()
     {
+        if ($this->_parentsOrdered !== null) {
+            return $this->_parentsOrdered;
+        }
         $parents = $this->getParents()->all();
         $ids = array_flip($this->getParentsIds());
         $primaryKey = $this->getPrimaryKey();
@@ -128,7 +136,7 @@ public function getParentsOrdered()
                 return $aIdx > $bIdx ? -1 : 1;
             }
         });
-        return $parents;
+        return $this->_parentsOrdered = $parents;
     }
 
     /**