public function thumb(Request $request)
 {
     //
     $thumb = PropertyMeta::where('property_id', $request->property_id)->where('type', 'thumbnail')->first();
     if ($thumb) {
         $thumb->delete();
     }
     $propertyMeta = new PropertyMeta();
     $propertyMeta->property_id = $request->property_id;
     $propertyMeta->name = 'thumbnail';
     $propertyMeta->value = $request->value;
     $propertyMeta->type = 'thumbnail';
     $propertyMeta->save();
     return response()->json(array('status' => 200, 'monolog' => array('title' => 'success', 'message' => 'object has been saved')));
 }