django序列化时如何添加一个customer filed NOT in my model?
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标题:django序列化时如何添加一个customer filed NOT in my model?
直接上代码,看注释。
class SkuSimpleSerializer(ModelSerializer):
created_at = TimestampField(required=False)
updated_at = TimestampField(required=False)
# user_phone = CharField(source='get_user_phone')
# 添加不在model中的客户化field。todo: 要查两次表,这是个问题,需优化。
user_name = SerializerMethodField()
user_phone = SerializerMethodField()
# 这样不可行!SerializerMethodField不支持many这个参数。
# user_info = SerializerMethodField(many=True)
# def get_user_info(self, obj):
# _info = get_user_info(obj.user_id)
# if _info:
# return _info['nickname'], _info['phone']
# return '', ''
# @staticmethod
def get_user_name(self, obj):
user_info = get_user_info(obj.user_id)
if user_info:
return user_info['nickname']
return ''
# @staticmethod
def get_user_phone(self, obj):
user_info = get_user_info(obj.user_id)
if user_info:
return user_info['phone']
return ''
class Meta:
model = Sku
fields = ('id', 'created_at', 'updated_at', 'sku_name', 'specification',
'item_code', 'bar_code', 'price', 'gross_weight',
'net_weight', 'length', 'width', 'height', 'user_name', 'user_phone')
直接上代码,看注释。
class SkuSimpleSerializer(ModelSerializer):
created_at = TimestampField(required=False)
updated_at = TimestampField(required=False)
# user_phone = CharField(source='get_user_phone')
# 添加不在model中的客户化field。todo: 要查两次表,这是个问题,需优化。
user_name = SerializerMethodField()
user_phone = SerializerMethodField()
# 这样不可行!SerializerMethodField不支持many这个参数。
# user_info = SerializerMethodField(many=True)
# def get_user_info(self, obj):
# _info = get_user_info(obj.user_id)
# if _info:
# return _info['nickname'], _info['phone']
# return '', ''
# @staticmethod
def get_user_name(self, obj):
user_info = get_user_info(obj.user_id)
if user_info:
return user_info['nickname']
return ''
# @staticmethod
def get_user_phone(self, obj):
user_info = get_user_info(obj.user_id)
if user_info:
return user_info['phone']
return ''
class Meta:
model = Sku
fields = ('id', 'created_at', 'updated_at', 'sku_name', 'specification',
'item_code', 'bar_code', 'price', 'gross_weight',
'net_weight', 'length', 'width', 'height', 'user_name', 'user_phone')