diff --git a/behaviors/ManyToManyBehavior.php b/behaviors/ManyToManyBehavior.php
new file mode 100755
index 0000000..26480d2
--- /dev/null
+++ b/behaviors/ManyToManyBehavior.php
@@ -0,0 +1,33 @@
+<?php
+    
+    namespace artweb\artbox\behaviors;
+    
+    use yii\base\Behavior;
+    use yii\db\ActiveRecord;
+    
+    /**
+     * Class ManyToManyBehavior
+     *
+     * @package artbox\catalog\behaviors
+     */
+    class ManyToManyBehavior extends Behavior
+    {
+        /**
+         * @param string         $name
+         * @param ActiveRecord[] $models
+         * @param array          $extraColumns
+         */
+        public function linkMany(string $name, array $models, array $extraColumns = [])
+        {
+            /**
+             * @var ActiveRecord $owner
+             */
+            $owner = $this->owner;
+            
+            $owner->unlinkAll($name, true);
+            
+            foreach ($models as $model) {
+                $owner->link($name, $model, $extraColumns);
+            }
+        }
+    }
\ No newline at end of file
diff --git a/models/Customer.php b/models/Customer.php
index d602459..6f8512a 100755
--- a/models/Customer.php
+++ b/models/Customer.php
@@ -97,6 +97,7 @@
                     ],
                     'unique'
                 ],
+                [['social_type', 'social_id'], 'safe'],
                 [
                     [
                         'gender',
@@ -171,6 +172,9 @@
                 ]
             );
         }
+        public function loginSocial(){
+            return Yii::$app->user->login($this,  3600 * 24 * 30);
+        }
     
         /**
          * Get full name
@@ -215,6 +219,28 @@
         {
             return false;
         }
-
-        
+    
+        public static function Social($user, $type)
+        {
+            $customer =  static::findOne(
+                [
+                    'status'   => self::STATUS_ACTIVE,
+                    'email'=> $user['email'],
+                    'social_type' => $type
+                ]
+            );
+            if ($customer == null){
+                $customer = new Customer();
+                $customer->email     = $user['email'];
+                $customer->username  = (isset($user['name'])) ? $user['name'] : $user['email'];
+                $customer->social_id = $user['id'];
+                $customer->social_type = $type;
+                $customer->setPassword($user['id']);
+                $customer->generateAuthKey();
+                $customer->status = self::STATUS_ACTIVE;
+                return $customer->save() ? $customer : null;
+            }else{
+                return $customer;
+            }
+        }
     }
--
libgit2 0.21.4