public function get_orderlists($institution){ $orders = \Model_Order::query()->where('students.standards.institution',$institution)->related(array('students','students.standards','products'))->get(); $array = array(); foreach ($orders as $key => $order) { $array[$key] = $order->to_array(); $measurement = \Model_Measurement::query()->where('student',$order->student)->where('product',$order->product)->get_one(); if(!is_null($measurement)){ $array[$key]['size'] = $measurement->autosize; } } return $array; }