Django JSON与Model互转

model 转JSON字符串

class MyUser(models.Model):
    ID=....
    Name=...
    Login=...
    Phone=...
    Age=....
 
    def toJSON(self):
        fields = []
        for field in self._meta.fields:
            fields.append(field.name)
    
        d = {}
        import datetime
        for attr in fields:
            if isinstance(getattr(self, attr),datetime.datetime):
                d[attr] = getattr(self, attr).strftime('%Y-%m-%d %H:%M:%S')
            elif isinstance(getattr(self, attr),datetime.date):
                d[attr] = getattr(self, attr).strftime('%Y-%m-%d')
            else:
                d[attr] = getattr(self, attr)
    
        import json
        return json.dumps(d)

1、【全】JSON字符串转 model

user = MyUser(**json.loads(user))      #将json序列转换成model

2、【部分】JSON字符串转 model

str = "{\"ID\": \"af1a5de2-58d7-11e8-bf79-e470b883cc29\", \"Login\": \"test001\", \"Name\": \"test001\", \"Pwd\": \"123456\"}"
user = MyUser(**json.loads(str))      #将json序列转换成model

注：JSON串中必须用 " 转义字符，用 ' 会报错