hasOne(File::class, 'id', 'file_id')->with('staff')->bind('id,size,create_staff_id,types,name,file_path,staff'); } public static function addFiles($files, $customer_id) { $files = explode(',', $files); $addFiles = []; foreach ($files as $v) { $addFiles[] = [ 'contract_id' => $customer_id, 'file_id' => $v ]; } $model=new self(); if($model->insertAll($addFiles)){ return true; } return false; } }