update

app/Models/CourseSign.php

@@ -82,7 +82,7 @@ class CourseSign extends SoftDeletesModel
         $total = CourseSign::whereDate('created_at', '>=', $start_date)
             ->whereDate('created_at', '<=', $end_date)
             ->whereHas('user', function ($query) use ($area) {
-                if ($area) {
+                if (isset($area)) {
                     if ($area == '苏州市外') {
                         $allArea = ParameterDetail::where('parameter_id', 5)->get();
                         $query->whereNotIn('company_area', $allArea->pluck('value'));
@@ -110,11 +110,13 @@ class CourseSign extends SoftDeletesModel
         $courseSignByType = CourseSign::whereDate('created_at', '>=', $start_date)
             ->whereDate('created_at', '<=', $end_date)
             ->whereHas('user', function ($query) use ($area) {
-                if ($area == '苏州市外') {
-                    $allArea = ParameterDetail::where('parameter_id', 5)->get();
-                    $query->whereNotIn('company_area', $allArea->pluck('value'));
-                } else {
-                    $query->where('company_area', $area);
+                if (isset($area)) {
+                    if ($area == '苏州市外') {
+                        $allArea = ParameterDetail::where('parameter_id', 5)->get();
+                        $query->whereNotIn('company_area', $allArea->pluck('value'));
+                    } else {
+                        $query->where('company_area', $area);
+                    }
                 }
             })->where(function ($query) use ($status, $course_ids) {
                 if (isset($status)) {