问题描述
我的模型中有Article和ArticleCategory。文章有很多类别。
模型
class ArticleCategory(Created):
category_name = models.CharField(max_length=128)
slug = models.SlugField(null=False,unique=False)
def save(self,*args,**kwargs):
if not self.slug:
self.slug = slugify(self.category_name)
return super().save(*args,**kwargs)
def __str__(self):
return self.category_name
class Article(Created):
title = models.CharField(max_length=120)
author = models.ForeignKey(User,on_delete=models.CASCADE)
snippet = models.TextField(null=False) # ustawić max_lenght
body = RichTextField(null=False)
category = models.ManyToManyField(ArticleCategory,related_name='articles') # Todo: ustawić on_delete
image = models.ImageField(blank=True,null=True,upload_to='article_image/')
slug = models.SlugField(null=False,**kwargs):
if not self.slug:
self.slug = slugify(self.title)
return super().save(*args,**kwargs)
def get_absolute_url(self):
return reverse('news:article_detail',kwargs={'pk': self.pk,'slug': self.slug})
此外,我对所有具有该类别的文章都具有特定类别的网址:
URL
urlpatterns = [
path('show/<int:pk>/<slug:slug>',ArticleDetailView.as_view(),name='article_detail'),path('all/',AllArticlesListView.as_view(),name='all_articles_list'),path('category/<slug:slug>/',CategoryArticlesList.as_view(),name='category_articles_list'),]
在我创建的 VIEW 中
class CategoryArticlesList(DetailView):
template_name = 'news/category_articles_list.html'
model = ArticleCategory
最后是模板CATEGORY_ARTICLES_LIST.HTML
SPECIFIC CATEGORY: {{ articlecategory.category_name | upper }}
AND ALL NEWS WITH THIS CATEGORY
{% for article in articlecategory.articles.iterator reversed %}
<h3>{{ article.title }}</h3> <br>
{{ article.body | safe }} <br>
{% endfor %}
我的问题是...如何对视图中的所有特定类别文章进行分页? 如果我在CategoryTypeArticlesList类中使用ListView,则查询形式的问题将会很大……我不知道该怎么办。
解决方法
DetailView
不会进行分页,因为很可能只有一个对象。您可以将其设置为ListView
,并添加一些逻辑以传递articlecategory
:
from django.shortcuts import get_object_or_404
class ArticlesByCategoryListView(ListView):
template_name = 'news/category_articles_list.html'
model = Article
queryset = Article.objects.order_by('-pk')
paginate_by = 25
def get_queryset(self,*args,**kwargs):
return super().get_queryset(*args,**kwargs).filter(
category__slug=self.kwargs['slug']
)
def articlecategory(self):
return get_object_or_404(ArticleCategory,slug=self.kwargs['slug'])
然后在模板中,我们可以使用以下方式呈现该信息:
SPECIFIC CATEGORY: {{ view.articlecategory.category_name|upper }}
AND ALL NEWS WITH THIS CATEGORY
{% for article in page_obj %}
<h3>{{ article.title }}</h3> <br>
{{ article.body|safe }} <br>
{% endfor %}