修复若干bug，优化若干代码

apps/work/serializers.py

@@ -1,21 +1,20 @@
 from rest_framework import serializers
 from .models import *
-
+from utils.util import get_msg
 
 class WorksInfoSerializer(serializers.ModelSerializer):
     class Meta:
         model = Works
         fields = '__all__'
-    grade = serializers.CharField(label="年级", required=True)
-    name = serializers.CharField(label="事件名称", max_length=30, required=True)
-    description = serializers.CharField(label="事件描述", max_length=200, required=True)
-    img = serializers.ImageField(label="图片", required=False)
-
-    """用来校验传入年级是否符合规范"""
-    def validate_grade(self, value):
-        if not (2002 < value <= 2021):
-            raise serializers.ValidationError(code='42006', detail={'msg': get_msg(42006),
-                                                                "code": '42006'})
-        return value
-
+    # grade = serializers.CharField(label="年级", required=True)
+    # name = serializers.CharField(label="事件名称", max_length=30, required=True)
+    # description = serializers.CharField(label="事件描述", max_length=200, required=True)
+    # img = serializers.ImageField(label="图片", required=False)
+    #
+    # """用来校验传入年级是否符合规范"""
+    # def validate_grade(self, value):
+    #     if not (2002 < value <= 2021):
+    #         raise serializers.ValidationError(code='42006', detail={'msg': get_msg(42006),
+    #                                                             "code": '42006'})
+    #     return value