去掉排序

app/Model/MediaModel.php

@@ -92,16 +92,15 @@ class MediaModel extends Eloquent
                     $aggregate[]['$match']['end_time'] = ['$lt' => $end_time ];
                 }
 
-                $aggregate[]['$sort'] = ['start_time'  => $sort];
+                $aggregate1 = $aggregate;
 
-                $aggregate1=$aggregate;
+                $aggregate[]['$sort'] = ['start_time'  => $sort];
 
                 $aggregate1[]['$group'] = [
                     '_id' => array(),//更具性别进行分组
                     'count'=>array('$sum'=>1)
                 ];
 
-
                 $count = $collection->aggregate($aggregate1)->toArray();
 
                 if (isset($count[0])){