Generic display views

The two following generic class-based views are designed to display data. Onmany projects they are typically the most commonly used views.

DetailView

• class django.views.generic.detail.DetailView
• While this view is executing, self.object will contain the object thatthe view is operating upon.

Ancestors (MRO)

This view inherits methods and attributes from the following views:

• django.views.generic.detail.SingleObjectTemplateResponseMixin
• django.views.generic.base.TemplateResponseMixin
• django.views.generic.detail.BaseDetailView
• django.views.generic.detail.SingleObjectMixin

• django.views.generic.base.ViewMethod Flowchart

• setup()

• dispatch()
• http_method_not_allowed()
• get_template_names()
• get_slug_field()
• get_queryset()
• get_object()
• get_context_object_name()
• get_context_data()
• get()
• render_to_response()Example myapp/views.py:

from django.utils import timezone
from django.views.generic.detail import DetailView
 
from articles.models import Article
 
class ArticleDetailView(DetailView):
 
    model = Article
 
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['now'] = timezone.now()
        return context

Example myapp/urls.py:

from django.urls import path
 
from article.views import ArticleDetailView
 
urlpatterns = [
    path('<slug:slug>/', ArticleDetailView.as_view(), name='article-detail'),
]

Example myapp/article_detail.html:

<h1>{{ object.headline }}</h1>
<p>{{ object.content }}</p>
<p>Reporter: {{ object.reporter }}</p>
<p>Published: {{ object.pub_date|date }}</p>
<p>Date: {{ now|date }}</p>

ListView

• class django.views.generic.list.ListView
• A page representing a list of objects.

While this view is executing, self.object_list will contain the list ofobjects (usually, but not necessarily a queryset) that the view isoperating upon.

Ancestors (MRO)

This view inherits methods and attributes from the following views:

• django.views.generic.list.MultipleObjectTemplateResponseMixin
• django.views.generic.base.TemplateResponseMixin
• django.views.generic.list.BaseListView
• django.views.generic.list.MultipleObjectMixin

• django.views.generic.base.ViewMethod Flowchart

• setup()

• dispatch()
• http_method_not_allowed()
• get_template_names()
• get_queryset()
• get_context_object_name()
• get_context_data()
• get()
• render_to_response()Example views.py:

from django.utils import timezone
from django.views.generic.list import ListView
 
from articles.models import Article
 
class ArticleListView(ListView):
 
    model = Article
    paginate_by = 100  # if pagination is desired
 
    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['now'] = timezone.now()
        return context

Example myapp/urls.py:

from django.urls import path
 
from article.views import ArticleListView
 
urlpatterns = [
    path('', ArticleListView.as_view(), name='article-list'),
]

Example myapp/article_list.html:

<h1>Articles</h1>
<ul>
{% for article in object_list %}
    <li>{{ article.pub_date|date }} - {{ article.headline }}</li>
{% empty %}
    <li>No articles yet.</li>
{% endfor %}
</ul>

If you’re using pagination, you can adapt the example template fromthe pagination docs. Change instances ofcontacts in that example template to page_obj.

• class django.views.generic.list.BaseListView
• A base view for displaying a list of objects. It is not intended to be useddirectly, but rather as a parent class of thedjango.views.generic.list.ListView or other views representinglists of objects.

Ancestors (MRO)

This view inherits methods and attributes from the following views:

• django.views.generic.list.MultipleObjectMixin

• django.views.generic.base.ViewMethods

• get(request, *args, **kwargs)

• Adds object_list to the context. Ifallow_emptyis True then display an empty list. Ifallow_empty isFalse then raise a 404 error.