修改日志的记录条件以及各式，修改缓存余票

application/third_party/train/controllers/search.php

@@ -13,21 +13,31 @@ class search extends CI_Controller{
 	public function index($train_date=null,$fromStation=null,$toStation=null){
 		set_time_limit(0); 
 		if(!$train_date || !$fromStation || !$toStation){
-			exit('传参错误！');
+			exit('传参不能为空！');
 		}else{
+			if(strlen($fromStation) != 3){
+				exit('fromStation:参数错误！');
+			}
+			if(strlen($toStation) != 3){
+				exit('toStation:参数错误！');
+			}
+			$this->train_date = $train_date;
 			//$url = 'http://op.juhe.cn/trainTickets/ticketsAvailable?key='.JUHE_TRAIN_API_KEY.'&train_date='.$train_date.'&from_station='.$fromStation.'&to_station='.$toStation;
 			$url = 'http://139.129.246.118:12309/trainTickets/ticketsAvailable?key='.JUHE_TRAIN_API_KEY.'&train_date='.$train_date.'&from_station='.$fromStation.'&to_station='.$toStation;
 			$back_data = $this->get_http($url);
+			$firstdata = $back_data;
 			$reason = json_decode($back_data)->reason;
 			$return_data = new stdClass();
 			$cache = 'no';
 			if(empty(json_decode($back_data)->result)){
-			log_message('error','juhetrain:'.$url.' '.$back_data);
 				$obj = $this->BIZ_train_model->get_train_info($fromStation,$toStation);
 			if($obj){
 				$back_data = $obj->tpc_content;
 				$cache = 'yes';
-				log_message('error','Sn:'.$obj->tpc_sn.'|time:'.$obj->tpc_datetime);
+				$this->cache = true;
+				log_message('error','查询为空的链接:'.$url.'|出错的原因:'.$firstdata.'|调用缓存号：'.$obj->tpc_sn.'|缓存生成的时间:'.$obj->tpc_datetime);
+				}else{
+					log_message('error','查询为空的链接:'.$url.'|出错的原因:'.$firstdata.'|缓存为空');
 				}	
 			}else{
 				$this->BIZ_train_model->addOrUpdate($fromStation,$toStation,$back_data);
@@ -147,6 +157,15 @@ class search extends CI_Controller{
 	
 	//余票转换
 	function ticket_exchange($num){
+		if(isset($this->cache)){
+			$time = strtotime($this->train_date) - time();
+			$day = $time / 86400;
+			if($day > 15){
+				return '有';
+			}else{
+				return $num;
+			}
+		}else{
 			if(is_numeric($num)){
 				if($num == 0){
 					return '无';
@@ -161,6 +180,7 @@ class search extends CI_Controller{
 				}
 			}	
 		}
+	}
 	
 	//发送请求
 	function get_http($url, $data = '', $method = 'GET') {