update

app/Http/Controllers/Admin/OtherController.php

@@ -400,6 +400,8 @@ class OtherController extends CommonController
             case 'course_signs_pass':
                 // 审核通过人数明细 - 使用courseSignsTotal方法获取列表（与coursesHome算法一致）
                 $courseSigns = CourseSign::courseSignsTotal($start_date, $end_date, 1, $course_ids, null, true);
+                // 加载关联关系
+                $courseSigns->load(['user', 'course']);
 
                 foreach ($courseSigns as $sign) {
                     $data[] = [

app/Models/CourseSign.php

@@ -79,8 +79,7 @@ class CourseSign extends SoftDeletesModel
      */
     public static function getStudentList($start_date = null, $end_date = null, $status = null, $course_ids = null)
     {
-        $baseQuery = CourseSign::with('user', 'course')
-            ->where(function ($query) use ($course_ids, $status) {
+        $baseQuery = CourseSign::where(function ($query) use ($course_ids, $status) {
             if ($status) {
                 $query->where('status', $status);
             }