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python - admin.py 文件中的 Django TabularInline 错误

问题描述

嘿伙计们，我一直在尝试在 django admin.py 文件中创建我的模型的内联 TabularInline 视图。我面临一个问题，我在下面的代码中收到以下错误。

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.8/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/home/brian/Desktop/django react learning /site/lib/python3.8/site-packages/django/utils/autoreload.py", line 53, in wrapper
    fn(*args, **kwargs)
  File "/home/brian/Desktop/django react learning /site/lib/python3.8/site-packages/django/core/management/commands/runserver.py", line 118, in inner_run
    self.check(display_num_errors=True)
  File "/home/brian/Desktop/django react learning /site/lib/python3.8/site-packages/django/core/management/base.py", line 442, in check
    raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:

ERRORS:
<class 'tweets.admin.TweetlikeAdmin'>: (admin.E202) 'tweets.Tweet' has no ForeignKey to 'tweets.Tweet'.

所以一开始我以为我错过了一些东西，但是当我尝试改变它时，我得到了更多的错误，这真的没有意义。所以我确保与您分享我的 models.py 文件，我的 admin.py 文件是我的 models.py 文件

class Tweetlike(models.Model):
    user = models.ForeignKey(User,on_delete=models.CASCADE)
    tweet = models.ForeignKey('Tweet',on_delete=models.CASCADE)
    timestamp = models.DateTimeField(auto_now_add=True)

class Tweet(models.Model):
    user = models.ForeignKey(User,on_delete=models.CASCADE) #this means that one user can own tweets
    likes = models.ManyToManyField(User,related_name='tweet_user', blank=True, through=Tweetlike)
    content = models.TextField(blank=True,null=True)
    timestamp = models.DateTimeField(auto_now_add=True)
    image = models.FileField(upload_to='images/',blank=True,null=True)

    def __str__(self):
        return self.content

最后是 admin.py 文件。这是我尝试运行服务器时错误的来源

class TweetlikeAdmin(admin.TabularInline):
    model = Tweet


class TweetAdmin(admin.ModelAdmin):
    inlines = [TweetlikeAdmin,]
    list_display = ['__str__','user']
    search_fields = ['content','user__username', 'user__email']
    class Meta:
        model = Tweet

admin.site.register(Tweet,TweetAdmin)

标签： pythondjangodjango-3.1

解决方案

你没有设置正确的模型，你让他们都指向Tweet模型。更改内联模型；

class TweetlikeAdmin(admin.TabularInline):
    model = Tweetlike

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