添加火车数据缓存调用条件

application/third_party/train/controllers/search.php

@@ -57,16 +57,15 @@ class search extends CI_Controller{
 	function Searchtrain($train_date,$fromStation,$toStation){	
 		$this->train_date = $train_date;
 		$now_time = time();
-		$differ_time = (strtotime($train_date) - $now_time) / 86400;
+		$this->differ_time = (strtotime($train_date) - $now_time) / 86400;
 		$this->seveth = 'no';
 		//屏蔽掉超过预售期的搜索，提高速度 
-		if($differ_time > 29){
+		if($this->differ_time > 29){
 			$train_date = date('Y-m-d',strtotime('+7day'));
 			$this->seveth = 'yes';
 		}
-		$url = JUHE_TRAIN_CX_API.'?key='.JUHE_TRAIN_API_KEY.'&train_date='.$train_date.'&from_station='.$fromStation.'&to_station='.$toStation;
-		$this->url = $url;
-		$train_info = $this->get_http($url);
+		$this->url = JUHE_TRAIN_CX_API.'?key='.JUHE_TRAIN_API_KEY.'&train_date='.$train_date.'&from_station='.$fromStation.'&to_station='.$toStation;
+		$train_info = $this->get_http($this->url);
 		return $train_info;
 	}
 	
@@ -85,15 +84,22 @@ class search extends CI_Controller{
 			$this->BIZ_train_model->addOrUpdate($fromStation,$toStation,$search_return);
 			$operate_data = $search_return;
 		}else{
-			$cache_train_info = $this->BIZ_train_model->get_train_info($fromStation,$toStation);
+			//添加缓存调用时间判断
+			if($this->differ_time <= 5){
+				$cache_train_info = NULL;
+			}else{
+				$cache_train_info = $this->BIZ_train_model->get_train_info($fromStation,$toStation);
+			}
+			
+			//判断缓存是否为空
 			if(empty($cache_train_info)){
 				log_message('error','TRAIN 查询为空的链接:'.$this->url.'|出错的原因:'.$this->reason.'|缓存为空');
 				$operate_data = NULL;
 			}else{
 				$cache_time = $cache_train_info->tpc_datetime;
 				$now_time = time();
-				$differ_time = ($now_time - strtotime($cache_time)) / 86400;
-				if($differ_time >= 3){
+				$cache_differ_time = ($now_time - strtotime($cache_time)) / 86400;
+				if($cache_differ_time >= 3){
 					$this->BIZ_train_model->delete_traincache($fromStation,$toStation);
 					log_message('error','TRAIN 查询为空的链接:'.$this->url.'|出错的原因:'.$this->reason.'|缓存超时,已经删除');
 					$operate_data = NULL;