Question

我遇到了Django Poll tutorial的问题。出于某种原因，我一直在

属性错误：＆＃39;问题＆＃39;对象没有属性＆＃39; question_text＆＃39;

我一直在按照教程进行操作，不知道出了什么问题。

Mmodels.py：

from django.db import models
import datetime
from django.utils import timezone

class Question(models.Model):
    # ...
    def __str__(self):
        return self.question_text
    def was_published_recently(self):
        return self.pub_date >= timezone.now() - datetime.timedelta(days=1)

class Choice(models.Model):
    # ...
    def __str__(self):
        return self.choice_text

Answer 1

我猜你的模型定义中缺少字段。根据django教程，你所指的模型看起来像这样。

class Question(models.Model):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')

    def __str__(self):
        return self.question_text

    def was_published_recently(self):
        return self.pub_date >= timezone.now() - datetime.timedelta(days=1)


class Choice(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0) 

    def __str__(self):
        return self.choice_text

如果放置这些，则不会遇到该错误。

Django民意调查教程AttributeError

1 个答案: