Question

我正在尝试列出终端中的所有对象。

这是我的对象的模型：

from django.db import models

class Game(models.Model):
    gameId = models.CharField(max_length=250)
    date = models.CharField(max_length=250)
    time = models.CharField(max_length=250)
    awayId = models.CharField(max_length=250)
    awayCity = models.CharField(max_length=250)
    awayName = models.CharField(max_length=250)
    awayAbr = models.CharField(max_length=250)
    homeId = models.CharField(max_length=250)
    homeCity = models.CharField(max_length=250)
    homeName = models.CharField(max_length=250)
    homeAbr = models.CharField(max_length=250)
    isUnplayed = models.BooleanField()
    isInProgress = models.BooleanField()
    isCompleted = models.BooleanField()
    awayScore = models.CharField(max_length=250)
    homeScore = models.CharField(max_length=250)

    def __str__(self):
        return str(self.gameId)

然后我尝试在终端中运行它：

Game.objects.all()

我收到此错误：

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/Users/Dean/Documents/codingProjects/Python/isItClose/lib/python3.6/site-packages/django/db/models/query.py", line 229, in __repr__
    return '<%s %r>' % (self.__class__.__name__, data)
  File "/Users/Dean/Documents/codingProjects/Python/isItClose/lib/python3.6/site-packages/django/db/models/base.py", line 589, in __repr__
    u = six.text_type(self)
TypeError: __str__ returned non-string (type NoneType)

我已在终端中创建了一些数据：

>>>a = Game(gameId="1",date="2016-05-01",time="1:10PM",awayId="136",awayCity="San Fran",awayName="Giants",awayAbr="SF",homeId="127",homeCity="New york",homeName="Yankees",homeAbr="NYY",isUnplayed=False,isInProgress=False,isCompleted=True,awayScore="4",homeScore="6")

>>> a.Save()

感谢您的任何建议!!

尝试列出django数据库中的所有对象时出错

0 个答案: