python - 错误 : blog. Post : (models. E015) 'ordering' 指的是不存在的字段、相关字段或查找 'publish' 。我该如何解决？

Question

每当我尝试迁移我的模型时。我不断收到此错误:

ERRORS:blog.Post: (models.E015) 'ordering' refers to the nonexistent field, related field, or lookup 'publish'.

这是我的模型文件。

from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User


# Create your models here.


class Post(models.Model):
    STATUS_CHOICES = (
        ('draft', 'Draft'),
        ('published', 'Published')
    )
    title = models.CharField(max_length=250)
    slug = models.SlugField(max_length=250,
                            unique_for_date='publish')
    author = models.ForeignKey(User,
                               on_delete=models.CASCADE,
                               related_name='blog_posts',
                               )
    body = models.TextField()
    published = models.DateTimeField(default=timezone.now)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)
    status = models.CharField(max_length=10,
                              choices=STATUS_CHOICES, default='draft')

    class Meta:
        ordering = ('-publish',)

    def __str__(self):
        return self.title

导致错误的行。

    class Meta:
        ordering = ('-publish',)

我想要一个快速的解决方案。提前致谢

Answer 1

是不是错别字问题？模型中字段的名称是 published 但在元中是 publish

尝试将您的元更改为:

class Meta:
        ordering = ('-published',)