update

app/Models/Calendar.php

@@ -87,6 +87,26 @@ class Calendar extends SoftDeletesModel
         });
     }
 
+    /**
+     * 获取开课统计（场次数量或天数总和）
+     * @param string|null $start_date 开始日期
+     * @param string|null $end_date 结束日期
+     * @param array|null $course_type_id 课程体系ID数组
+     * @param string $type 统计类型：'count' 统计次数，'sum' 统计天数总和
+     * @return int|float
+     */
+    public static function getCourseStatistics($start_date = null, $end_date = null, $course_type_id = null, $type = 'count')
+    {
+        $query = self::getCalendarsByDateRange($start_date, $end_date, $course_type_id)
+            ->where('is_count_days', 1);
+
+        if ($type === 'sum') {
+            return $query->sum('days');
+        }
+
+        return $query->count();
+    }
+
     /**
      * 获取开课场次数量
      * @param string|null $start_date 开始日期
@@ -96,7 +116,7 @@ class Calendar extends SoftDeletesModel
      */
     public static function getCourseTotal($start_date = null, $end_date = null, $course_type_id = null)
     {
-        return self::getCalendarsByDateRange($start_date, $end_date, $course_type_id)->count();
+        return self::getCourseStatistics($start_date, $end_date, $course_type_id, 'count');
     }
 
     /**
@@ -108,9 +128,7 @@ class Calendar extends SoftDeletesModel
      */
     public static function getCourseDayTotal($start_date = null, $end_date = null, $course_type_id = null)
     {
-        return self::getCalendarsByDateRange($start_date, $end_date, $course_type_id)
-            ->where('is_count_days', 1)
-            ->sum('days');
+        return self::getCourseStatistics($start_date, $end_date, $course_type_id, 'sum');
     }
 
 }