创建group app

增加相关的models和views
没有测试

group/serializers.py

@@ -0,0 +1,27 @@
+# coding=utf-8
+from rest_framework import serializers
+
+from .models import Group
+
+
+class CreateGroupSerializer(serializers.Serializer):
+    name = serializers.CharField(max_length=20)
+    description = serializers.CharField(max_length=300)
+    join_group_setting = serializers.IntegerField(min_value=0, max_value=2)
+
+
+class EditGroupSerializer(serializers.Serializer):
+    name = serializers.CharField(max_length=20)
+    description = serializers.CharField(max_length=300)
+    join_group_setting = serializers.IntegerField()
+
+
+class JoinGroupRequestSerializer(serializers.Serializer):
+    group = serializers.IntegerField()
+    message = serializers.CharField(max_length=30)
+
+
+class GroupSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Group
+        exclude = ["members"]