新功能: 添加后端代码

backend/dvadmin/system/views/area.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+from django.db.models import Q
+from rest_framework import serializers
+
+from dvadmin.system.models import Area
+from dvadmin.utils.json_response import SuccessResponse
+from dvadmin.utils.serializers import CustomModelSerializer
+from dvadmin.utils.viewset import CustomModelViewSet
+
+
+class AreaSerializer(CustomModelSerializer):
+    """
+    地区-序列化器
+    """
+    pcode_count = serializers.SerializerMethodField(read_only=True)
+
+    def get_pcode_count(self, instance: Area):
+        return Area.objects.filter(pcode=instance).count()
+
+    class Meta:
+        model = Area
+        fields = "__all__"
+        read_only_fields = ["id"]
+
+
+class AreaCreateUpdateSerializer(CustomModelSerializer):
+    """
+    地区管理 创建/更新时的列化器
+    """
+
+    class Meta:
+        model = Area
+        fields = '__all__'
+
+
+class AreaViewSet(CustomModelViewSet):
+    """
+    地区管理接口
+    list:查询
+    create:新增
+    update:修改
+    retrieve:单例
+    destroy:删除
+    """
+    queryset = Area.objects.all()
+    serializer_class = AreaSerializer
+    extra_filter_backends = []