При переходе на страницу модели Book выдает ошибку FieldError at /book/pikovaya_dama
Cannot resolve keyword 'slug' into field. Choices are: author, author_id, creation_date, genre, genre_id, id, photo, slag, summary, title
urls.py
urlpatterns = [
path('', homepage),
path('book/<slug:slug>', BookDetailView.as_view(), name='book'),
]
models.py
from django.db import models
from django.urls import reverse
class Author(models.Model):
first_name = models.CharField(max_length=100)
last_name = models.CharField(max_length=100)
date_of_birth = models.DateField(null=True, blank=True)
date_of_death = models.DateField('died', null=True, blank=True)
photo = models.ImageField(upload_to='authors/%m/%d', null=True, blank=True)
slug = models.SlugField(unique=True)
def __str__(self):
return '{0} {1}'.format(self.first_name, self.last_name)
class Genre(models.Model):
title = models.CharField(max_length=155)
slug = models.SlugField(unique=True)
def __str__(self):
return self.title
class Book(models.Model):
title = models.CharField(max_length=155, verbose_name='Название книги')
summary = models.TextField(blank=True, verbose_name='Краткое описание')
photo = models.ImageField(upload_to='books/%m/%d', null=True, blank=True)
genre = models.ForeignKey(Genre, on_delete=models.CASCADE, null=True)
author = models.ForeignKey(Author, on_delete=models.CASCADE, null=True)
creation_date = models.DateField(blank=True, verbose_name='Дата создания')
slag = models.SlugField(unique=True)
def get_absolute_url(self):
return reverse('book', args=[self.slag])
def __str__(self):
return self.title
view.spy
from django.shortcuts import render, HttpResponse
from .models import Book, Author, Genre
from django.views.generic import DetailView
def homepage(request):
books = Book.objects.all()
authors = Author.objects.all()
now = datetime.datetime.now()
context = {
'books': books,
'authors': authors,
}
return render(request, 'main/homepage.html', context=context)
class BookDetailView(DetailView):
model = Book
context_object_name = 'item'
template_name = 'main/bookview.html'
