當我在models.py中的python django中運行此命令python manage.py makemigrations博客時出錯

Question

當我在models.py中的python django中運行此命令python manage.py makemigrations blog時收到錯誤

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

class Post(models.Model):
    author = models.ForeignKey('auth.User')
    title = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(
            default=timezone.now)
    published_date = models.DateTimeField(
            blank=True, null=True)

    def publish(self):
        self.published_date = timezone.now()
        self.save()

    def __str__(self):
        return self.title
    class Comment(models.Model):
    post = models.ForeignKey('blog.Post', related_name='comments')
    author = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(default=timezone.now)
    approved_comment = models.BooleanField(default=False)

    def approve(self):
        self.approved_comment = True
        self.save()`enter code here`

    def __str__(self):
        return self.text

Answer 1

您的代碼有幾個問題：

• 縮進
• 用戶類導入
• 使用Blog而不是blog.Blog

快速修復：

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


class Post(models.Model):
    author = models.ForeignKey(User)
    title = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(
        default=timezone.now)
    published_date = models.DateTimeField(
        blank=True, null=True)

    def publish(self):
        self.published_date = timezone.now()
        self.save()

    def __str__(self):
        return self.title


class Comment(models.Model):
    post = models.ForeignKey(Post, related_name='comments')
    author = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(default=timezone.now)
    approved_comment = models.BooleanField(default=False)

    def approve(self):
        self.approved_comment = True
        self.save()`enter code here`

    def __str__(self):
        return self.text