Collection triggers events of each model to saved

Collection.php

@@ -380,15 +380,15 @@ public function validate ($attributes = null) {
 
     public function beforeValidate () {
         $event = new ModelEvent();
-        $this->trigger(self::EVENT_BEFORE_VALIDATE, $event);
+        $this->triggerAll(self::EVENT_BEFORE_VALIDATE, $event);
 
         return $event->isValid;
     }
 
     public function afterValidate () {
         $event = new ModelEvent();
 
-        $this->trigger(self::EVENT_AFTER_VALIDATE, $event);
+        $this->triggerAll(self::EVENT_AFTER_VALIDATE, $event);
 
         return $event->isValid;
     }
@@ -398,13 +398,13 @@ public function beforeSave ($insert = false) {
         if ($this->isEmpty()) {
             $event->isValid = false;
         }
-        $this->trigger($insert ? self::EVENT_BEFORE_INSERT : self::EVENT_BEFORE_UPDATE, $event);
+        $this->triggerAll($insert ? self::EVENT_BEFORE_INSERT : self::EVENT_BEFORE_UPDATE, $event);
 
         return $event->isValid;
     }
 
     public function afterSave () {
-        $this->trigger(self::EVENT_AFTER_SAVE);
+        $this->triggerAll(self::EVENT_AFTER_SAVE);
     }
 
 
@@ -426,7 +426,7 @@ public function afterLoad () {
      * @param ModelEvent $event
      * @return bool whether is valid
      */
-    public function triggerAll ($name, ModelEvent $event = null) {
+    public function triggerModels ($name, ModelEvent $event = null) {
         if ($event == null) {
             $event = new ModelEvent();
         }
@@ -438,6 +438,23 @@ public function triggerAll ($name, ModelEvent $event = null) {
         return $event->isValid;
     }
 
+    /**
+     * Calls [[triggerModels()]], then calls [[trigger()]]
+     *
+     * @param string $name the event name
+     * @param ModelEvent $event
+     * @return bool whether is valid
+     */
+    public function triggerAll($name, ModelEvent $event = null) {
+        if ($event == null) {
+            $event = new ModelEvent();
+        }
+        if ($this->triggerModels($name, $event)) {
+            $this->trigger($name, $event);
+        }
+        return $event->isValid;
+    }
+
     public function isConsistent () {
         $new       = $this->first->getIsNewRecord();
         $className = $this->first->className();