update

app/Http/Controllers/Admin/CourseSignController.php

@@ -144,12 +144,12 @@ class CourseSignController extends BaseController
             if (isset($all['course_type_id'])) {
                 $course_type_id = explode(',', $all['course_type_id']);
                 $courses = Course::where(function ($query) use ($all) {
-                    if (isset($all['start_date'])) {
+//                    if (isset($all['start_date'])) {
-                        $query->where('start_date', '>=', $all['start_date']);
+//                        $query->where('start_date', '>=', $all['start_date']);
-                    }
+//                    }
-                    if (isset($all['end_date'])) {
+//                    if (isset($all['end_date'])) {
-                        $query->where('start_date', '<=', $all['end_date']);
+//                        $query->where('start_date', '<=', $all['end_date']);
-                    }
+//                    }
                 })->whereIn('type', $course_type_id)->get();
                 $query->whereNotIn('status', [4, 5])
                     ->where(function ($query) use ($courses) {