video curcse

backend/community/admin.py

@@ -46,8 +46,13 @@ class OrderableAdminMixin:
     def move_up_view(self, request, object_id):
         obj = self.get_object(request, object_id)
         if obj:
+            qs = self.model.objects.all()
+            # 如果模型有 is_pinned 字段，则只在相同置顶状态的记录中交换
+            if hasattr(obj, 'is_pinned'):
+                qs = qs.filter(is_pinned=obj.is_pinned)
+
             # 找到排在它前面的一个 (order 小于它的最大值)
-            prev_obj = self.model.objects.filter(order__lt=obj.order).order_by('-order').first()
+            prev_obj = qs.filter(order__lt=obj.order).order_by('-order').first()
             if prev_obj:
                 # 交换
                 obj.order, prev_obj.order = prev_obj.order, obj.order
@@ -62,8 +67,13 @@ class OrderableAdminMixin:
     def move_down_view(self, request, object_id):
         obj = self.get_object(request, object_id)
         if obj:
+            qs = self.model.objects.all()
+            # 如果模型有 is_pinned 字段，则只在相同置顶状态的记录中交换
+            if hasattr(obj, 'is_pinned'):
+                qs = qs.filter(is_pinned=obj.is_pinned)
+
             # 找到排在它后面的一个 (order 大于它的最小值)
-            next_obj = self.model.objects.filter(order__gt=obj.order).order_by('order').first()
+            next_obj = qs.filter(order__gt=obj.order).order_by('order').first()
             if next_obj:
                 # 交换
                 obj.order, next_obj.order = next_obj.order, obj.order
@@ -202,6 +212,12 @@ class TopicAdmin(OrderableAdminMixin, ModelAdmin):
     inlines = [TopicMediaInline, ReplyInline]
     actions = ['reset_ordering']
 
+    def save_model(self, request, obj, form, change):
+        # 当帖子被置顶时(新建或修改状态)，默认将排序值设为0
+        if obj.is_pinned and (not change or 'is_pinned' in form.changed_data):
+            obj.order = 0
+        super().save_model(request, obj, form, change)
+
     @admin.action(description="重置排序 (0,1,2... 新帖子在前)")
     def reset_ordering(self, request, queryset):
         """
@@ -223,7 +239,7 @@ class TopicAdmin(OrderableAdminMixin, ModelAdmin):
             'description': '可关联 硬件、服务 或 课程，用于技术求助或讨论'
         }),
         ('统计数据', {
-            'fields': ('view_count', 'created_at', 'updated_at'),
+            'fields': ('view_count', 'order', 'created_at', 'updated_at'),
             'classes': ('collapse',)
         }),
     )