===================== Generic display views ===================== The two following generic class-based views are designed to display data. On many 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 that the view is operating upon. **Ancestors (MRO)** This view inherits methods and attributes from the following views: * :class:`django.views.generic.detail.SingleObjectTemplateResponseMixin` * :class:`django.views.generic.base.TemplateResponseMixin` * ``django.views.generic.detail.BaseDetailView`` * :class:`django.views.generic.detail.SingleObjectMixin` * :class:`django.views.generic.base.View` **Method Flowchart** 1. :meth:`~django.views.generic.base.View.dispatch()` 2. :meth:`~django.views.generic.base.View.http_method_not_allowed()` 3. :meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()` 4. :meth:`~django.views.generic.detail.SingleObjectMixin.get_slug_field()` 5. :meth:`~django.views.generic.detail.SingleObjectMixin.get_queryset()` 6. :meth:`~django.views.generic.detail.SingleObjectMixin.get_object()` 7. :meth:`~django.views.generic.detail.SingleObjectMixin.get_context_object_name()` 8. :meth:`~django.views.generic.detail.SingleObjectMixin.get_context_data()` 9. ``get()`` 10. :meth:`~django.views.generic.base.TemplateResponseMixin.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('/', ArticleDetailView.as_view(), name='article-detail'), ] **Example myapp/article_detail.html**: .. code-block:: html+django

{{ object.headline }}

{{ object.content }}

Reporter: {{ object.reporter }}

Published: {{ object.pub_date|date }}

Date: {{ now|date }}

``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 of objects (usually, but not necessarily a queryset) that the view is operating upon. **Ancestors (MRO)** This view inherits methods and attributes from the following views: * :class:`django.views.generic.list.MultipleObjectTemplateResponseMixin` * :class:`django.views.generic.base.TemplateResponseMixin` * :class:`django.views.generic.list.BaseListView` * :class:`django.views.generic.list.MultipleObjectMixin` * :class:`django.views.generic.base.View` **Method Flowchart** 1. :meth:`~django.views.generic.base.View.dispatch()` 2. :meth:`~django.views.generic.base.View.http_method_not_allowed()` 3. :meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()` 4. :meth:`~django.views.generic.list.MultipleObjectMixin.get_queryset()` 5. :meth:`~django.views.generic.list.MultipleObjectMixin.get_context_object_name()` 6. :meth:`~django.views.generic.list.MultipleObjectMixin.get_context_data()` 7. ``get()`` 8. :meth:`~django.views.generic.base.TemplateResponseMixin.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**: .. code-block:: html+django

Articles

If you're using pagination, you can adapt the :ref:`example template from the pagination docs `. Change instances of ``contacts`` 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 used directly, but rather as a parent class of the :class:`django.views.generic.list.ListView` or other views representing lists of objects. **Ancestors (MRO)** This view inherits methods and attributes from the following views: * :class:`django.views.generic.list.MultipleObjectMixin` * :class:`django.views.generic.base.View` **Methods** .. method:: get(request, *args, **kwargs) Adds ``object_list`` to the context. If :attr:`~django.views.generic.list.MultipleObjectMixin.allow_empty` is True then display an empty list. If :attr:`~django.views.generic.list.MultipleObjectMixin.allow_empty` is False then raise a 404 error.