sync from local backup

user/serializers/region_serializers.py

@@ -0,0 +1,22 @@
+from rest_framework import serializers
+from ..models import Region
+
+
+class RegionSerializer(serializers.ModelSerializer):
+    children = serializers.SerializerMethodField()
+
+    class Meta:
+        model = Region
+        fields = ['id', 'name', 'code', 'level', 'parent_id', 'pinyin', 'children']
+
+    def get_children(self, obj):
+        children = obj.children.all()
+        if children.exists():
+            return RegionSerializer(children, many=True).data
+        return None
+
+
+class RegionSimpleSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Region
+        fields = ['id', 'name', 'code', 'level', 'parent_id', 'pinyin']