add frontend collection

common/models/UserSoldItem.php

@@ -3,6 +3,8 @@
 namespace common\models;
 
 use Yii;
+use yii\db\Query;
+use yii\db\Expression;
 
 /**
  * This is the model class for table "user_sold_item".
@@ -60,6 +62,29 @@ class UserSoldItem extends \yii\db\ActiveRecord
     	
     }
     
+    public static function readTotalForAccount($idUser,$idAccount){
+    	 
+    	$query = new Query();
+    	
+    	$query->addSelect( [
+    			new Expression( ' COALESCE(sum( transfer.money ) ,0) as money /** total unpaid reception cart */' )
+    	
+    	]);
+    	$query->innerJoin('transfer',['user_sold_item.id_transfer' =>'transfer.id_transfer']);
+    	
+    	$query->from('user_sold_item');
+    	
+    	$query->andFilterWhere([
+    			'transfer.id_account' => $idAccount,
+    			]);
+
+    	$query->andFilterWhere(['user_sold_item.id_user' => $idUser]);
+    	
+    	
+    	return $query->scalar();
+    	 
+    }
+    
     
     /**
      * @param common\models\User $user