update

app/Http/Controllers/Admin/OtherController.php

@@ -234,11 +234,11 @@ class OtherController extends CommonController
             $query->whereBetween('start_time', [$start_date, $end_date])
                 ->orWhereBetween('end_time', [$start_date, $end_date]);
         })->where(function ($query) {
-            $course_type_id = request('course_type_id', '');
+            $course_type_id = request('course_type_id');
+            if ($course_type_id) {
                 $course_type_id = explode(',', $course_type_id);
-//            if ($course_type_id) {
-//                $query->whereIn('course_type_id', $course_type_id);
-//            }
+                $query->whereIn('course_type_id', $course_type_id);
+            }
         });
         $list['course_total'] = (clone $calendar)->count();
         // 开课天数