update

app/Http/Controllers/Admin/OtherController.php

@@ -233,7 +233,7 @@ class OtherController extends CommonController
         $calendar = Calendar::where(function ($query) use ($start_date, $end_date) {
             $query->whereBetween('start_time', [$start_date, $end_date])
                 ->orWhereBetween('end_time', [$start_date, $end_date]);
-        });
+        })->whereIn('course_id', $courses->pluck('id'));
         $list['course_total'] = (clone $calendar)->count();
         // 开课天数
         $list['course_day_total'] = (clone $calendar)->where('is_count_days', 1)->sum('days');
@@ -707,8 +707,9 @@ class OtherController extends CommonController
 
             case 'course_day_total':
                 // 开课天数明细 - 与coursesHome算法一致
-                $calendars = Calendar::where('is_count_days', 1)
+                $calendars = Calendar::whereIn('course_id', $course_ids)
                     ->whereBetween('date', [$start_date, $end_date])
+                    ->where('is_count_days', 1)
                     ->with('course')
                     ->get();