我讀的Django書的第六章: http://www.djangobook.com/en/2.0/chapter06.html 而我所做的一切本書的第五章和第六章告訴我,我檢查了我的工作,並搜查了許多錯誤次,但我仍然有問題,當我去http://127.0.0.1:8000/admin/books/book/添加一些書,並保存它,我得到這個錯誤:Django的:列books_book.publication_date不存在
ProgrammingError at /admin/books/book/
column books_book.publication_date does not exist LINE 1: ...books_book"."title", "books_book"."publisher_id", "books_boo...
這是對我的models.py型號:
from django.db import models
class Publisher(models.Model):
name = models.CharField(max_length=30)
address = models.CharField(max_length=50)
city = models.CharField(max_length=60)
state_province = models.CharField(max_length=30)
country = models.CharField(max_length=50)
website = models.URLField()
def __unicode__(self):
return self.name
class Meta:
ordering = ['name']
class Author(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=40)
email = models.EmailField()
def __unicode__(self):
return u'%s %s' % (self.first_name, self.last_name)
class Book(models.Model):
title = models.CharField(max_length=100)
authors = models.ManyToManyField(Author)
publisher = models.ForeignKey(Publisher)
publication_date = models.DateField()
def __unicode__(self):
return self.title
這是設置的.py:
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.messages',
'django.contrib.sessions',
'django.contrib.staticfiles',
'books',
]
MIDDLEWARE_CLASSES = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
]
這是admin.py:提前
from django.contrib import admin
# Register your models here.
from django.contrib import admin
from books.models import Publisher, Author, Book
admin.site.register(Publisher)
admin.site.register(Author)
admin.site.register(Book)
謝謝...
你做分貝遷移? –
是的,我嘗試蟒蛇manage.py makemigrations和python manage.py遷移和python manage.py遷移--fake 和我 操作執行: 應用所有遷移:管理員,CONTENTTYPES,書籍,權威性,會議 運行的遷移: 沒有適用的遷移。 以下內容類型陳舊,需要刪除: books | auther 任何與這些內容類型相關的對象都可以通過外鍵刪除 。您確定要刪除這些內容類型嗎? 如果您不確定,請回答「否」。 輸入'yes'繼續,或'no'取消: 我輸入no。 –
我也嘗試過輸入yes,但沒有做任何事。 –