update

app/Http/Controllers/Admin/OtherController.php

@@ -292,7 +292,7 @@ class OtherController extends CommonController
             }
         }
         // 附加历史课程数据
-        $historyCourses = HistoryCourse::where('calendar', function ($query) {
+        $historyCourses = HistoryCourse::whereHas('calendar', function ($query) {
             $query->where('is_count_people', 1);
         })->where(function ($query) use ($start_date, $end_date) {
             // 开始结束日期的筛选。or查询

app/Models/CourseSign.php

@@ -110,7 +110,7 @@ class CourseSign extends SoftDeletesModel
             // 基础数据
             $baseTotal = $totalQuery->count();
             // 历史数据
-            $historyTotal = HistoryCourse::where('calendar', function ($query) {
+            $historyTotal = HistoryCourse::whereHas('calendar', function ($query) {
                 $query->where('is_count_people', 1);
             })->where(function ($query) use ($start_date, $end_date) {
                 // 开始结束日期的筛选。or查询
@@ -135,7 +135,7 @@ class CourseSign extends SoftDeletesModel
         } else {
             $baseTotal = $user->count();
             // 历史数据
-            $historyTotal = HistoryCourse::where('calendar', function ($query) {
+            $historyTotal = HistoryCourse::whereHas('calendar', function ($query) {
                 $query->where('is_count_people', 1);
             })->where(function ($query) use ($start_date, $end_date) {
                 // 开始结束日期的筛选。or查询