修改国际火车接口

application/third_party/train/controllers/search.php

@@ -216,15 +216,14 @@ class search extends CI_Controller{
 		$trainTo = json_decode($json)->trainTo;
 		$trainDate = json_decode($json)->trainDate;
 		
+		if(empty($trainFrom) || empty($trainTo)){
+			exit('{"status":"201","reason":"车站查询失败","data":""}');
+		}
 		
 		//根据传过来的城市名称获取城市代码
 		$trainFromCode = $this->BIZ_intel_train_model->get_code_by_name($trainFrom);
 		$trainToCode = $this->BIZ_intel_train_model->get_code_by_name($trainTo);
 			
-		if(empty($trainFromCode) || empty($trainToCode)){
-			exit('{"status":"201","reason":"车站查询失败","data":""}');
-		}
-				
 		//获取车次信息
 		$obj = $this->BIZ_intel_train_model->get_train_info($trainFromCode->s_code,$trainToCode->s_code);