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148 lines
5.0 KiB
Plaintext
148 lines
5.0 KiB
Plaintext
=====================
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Generic display views
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=====================
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The two following generic class-based views are designed to display data. On
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many projects they are typically the most commonly used views.
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DetailView
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----------
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.. class:: django.views.generic.detail.DetailView
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While this view is executing, ``self.object`` will contain the object that
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the view is operating upon.
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**Ancestors (MRO)**
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This view inherits methods and attributes from the following views:
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* :class:`django.views.generic.detail.SingleObjectTemplateResponseMixin`
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* :class:`django.views.generic.base.TemplateResponseMixin`
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* ``django.views.generic.detail.BaseDetailView``
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* :class:`django.views.generic.detail.SingleObjectMixin`
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* :class:`django.views.generic.base.View`
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**Method Flowchart**
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1. :meth:`~django.views.generic.base.View.dispatch()`
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2. :meth:`~django.views.generic.base.View.http_method_not_allowed()`
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3. :meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()`
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4. :meth:`~django.views.generic.detail.SingleObjectMixin.get_slug_field()`
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5. :meth:`~django.views.generic.detail.SingleObjectMixin.get_queryset()`
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6. :meth:`~django.views.generic.detail.SingleObjectMixin.get_object()`
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7. :meth:`~django.views.generic.detail.SingleObjectMixin.get_context_object_name()`
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8. :meth:`~django.views.generic.detail.SingleObjectMixin.get_context_data()`
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9. ``get()``
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10. :meth:`~django.views.generic.base.TemplateResponseMixin.render_to_response()`
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**Example views.py**::
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from django.views.generic.detail import DetailView
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from django.utils import timezone
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from articles.models import Article
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class ArticleDetailView(DetailView):
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model = Article
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def get_context_data(self, **kwargs):
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context = super(ArticleDetailView, self).get_context_data(**kwargs)
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context['now'] = timezone.now()
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return context
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**Example urls.py**::
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from django.conf.urls import patterns, url
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from article.views import ArticleDetailView
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urlpatterns = patterns('',
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url(r'^(?P<slug>[-_\w]+)/$', ArticleDetailView.as_view(), name='article-detail'),
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)
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ListView
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--------
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.. class:: django.views.generic.list.ListView
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A page representing a list of objects.
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While this view is executing, ``self.object_list`` will contain the list of
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objects (usually, but not necessarily a queryset) that the view is
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operating upon.
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**Ancestors (MRO)**
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This view inherits methods and attributes from the following views:
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* :class:`django.views.generic.list.ListView`
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* :class:`django.views.generic.list.MultipleObjectTemplateResponseMixin`
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* :class:`django.views.generic.base.TemplateResponseMixin`
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* :class:`django.views.generic.list.BaseListView`
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* :class:`django.views.generic.list.MultipleObjectMixin`
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* :class:`django.views.generic.base.View`
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**Method Flowchart**
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1. :meth:`~django.views.generic.base.View.dispatch()`
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2. :meth:`~django.views.generic.base.View.http_method_not_allowed()`
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3. :meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()`
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4. :meth:`~django.views.generic.list.MultipleObjectMixin.get_queryset()`
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5. :meth:`~django.views.generic.list.MultipleObjectMixin.get_context_object_name()`
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6. :meth:`~django.views.generic.list.MultipleObjectMixin.get_context_data()`
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7. ``get()``
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8. :meth:`~django.views.generic.base.TemplateResponseMixin.render_to_response()`
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**Example views.py**::
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from django.views.generic.list import ListView
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from django.utils import timezone
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from articles.models import Article
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class ArticleListView(ListView):
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model = Article
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def get_context_data(self, **kwargs):
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context = super(ArticleListView, self).get_context_data(**kwargs)
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context['now'] = timezone.now()
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return context
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**Example urls.py**::
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from django.conf.urls import patterns, url
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from article.views import ArticleListView
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urlpatterns = patterns('',
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url(r'^$', ArticleListView.as_view(), name='article-list'),
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)
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.. class:: django.views.generic.list.BaseListView
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A base view for displaying a list of objects. It is not intended to be used
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directly, but rather as a parent class of the
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:class:`django.views.generic.list.ListView` or other views representing
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lists of objects.
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**Ancestors (MRO)**
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This view inherits methods and attributes from the following views:
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* :class:`django.views.generic.list.MultipleObjectMixin`
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* :class:`django.views.generic.base.View`
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**Methods**
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.. method:: get(request, *args, **kwargs)
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Adds ``object_list`` to the context. If
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:attr:`~django.views.generic.list.MultipleObjectMixin.allow_empty`
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is True then display an empty list. If
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:attr:`~django.views.generic.list.MultipleObjectMixin.allow_empty` is
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False then raise a 404 error.
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