minor fixes

app/Repositories/Shop/BasketStores.php

@@ -10,24 +10,19 @@ class BasketStores
 {
     use Basic;
 
-    public function has($key)
+    public static function has($key)
     {
         return Basket::find($key);
     }
 
-    public function get($key)
+    public static function get($key)
     {
-        if ($this->has($key)) {
-            return new CartCollection(Basket::find($key)->cart_data);
-        } else {
-            return [];
-        }
+        return self::has($key) ? new CartCollection(Basket::find($key)->cart_data) : [];
     }
 
-    public function put($key, $value)
+    public static function put($key, $value)
     {
         if ($row = Basket::find($key)) {
-            // update
             $row->cart_data = $value;
             $row->save();
         } else {