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=====================
Generic editing views
=====================
The following views are described on this page and provide a foundation for
editing content:
* :class:`django.views.generic.edit.FormView`
* :class:`django.views.generic.edit.CreateView`
* :class:`django.views.generic.edit.UpdateView`
* :class:`django.views.generic.edit.DeleteView`
.. note::
Some of the examples on this page assume that an ``Author`` model has been
defined as follows in ``myapp/models.py``::
from django.core.urlresolvers import reverse
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=200)
def get_absolute_url(self):
return reverse('author-detail', kwargs={'pk': self.pk})
FormView
--------
.. class:: django.views.generic.edit.FormView
A view that displays a form. On error, redisplays the form with validation
errors; on success, redirects to a new URL.
**Ancestors (MRO)**
This view inherits methods and attributes from the following views:
* :class:`django.views.generic.edit.FormView`
* :class:`django.views.generic.base.TemplateResponseMixin`
* ``django.views.generic.edit.BaseFormView``
* :class:`django.views.generic.edit.FormMixin`
* :class:`django.views.generic.edit.ProcessFormView`
* :class:`django.views.generic.base.View`
**Example forms.py**::
from django import forms
class ContactForm(forms.Form):
name = forms.CharField()
message = forms.CharField(widget=forms.Textarea)
def send_email(self):
# send email using the self.cleaned_data dictionary
pass
**Example views.py**::
from myapp.forms import ContactForm
from django.views.generic.edit import FormView
class ContactView(FormView):
template_name = 'contact.html'
form_class = ContactForm
success_url = '/thanks/'
def form_valid(self, form):
# This method is called when valid form data has been POSTed.
# It should return an HttpResponse.
form.send_email()
return super(ContactView, self).form_valid(form)
CreateView
----------
.. class:: django.views.generic.edit.CreateView
A view that displays a form for creating an object, redisplaying the form
with validation errors (if there are any) and saving the object.
**Ancestors (MRO)**
This view inherits methods and attributes from the following views:
* :class:`django.views.generic.edit.CreateView`
* :class:`django.views.generic.detail.SingleObjectTemplateResponseMixin`
* :class:`django.views.generic.base.TemplateResponseMixin`
* ``django.views.generic.edit.BaseCreateView``
* :class:`django.views.generic.edit.ModelFormMixin`
* :class:`django.views.generic.edit.FormMixin`
* :class:`django.views.generic.detail.SingleObjectMixin`
* :class:`django.views.generic.edit.ProcessFormView`
* :class:`django.views.generic.base.View`
**Attributes**
.. attribute:: template_name_suffix
The ``CreateView`` page displayed to a ``GET`` request uses a
``template_name_suffix`` of ``'_form'``. For
example, changing this attribute to ``'_create_form'`` for a view
creating objects for the example ``Author`` model would cause the
default ``template_name`` to be ``'myapp/author_create_form.html'``.
**Example views.py**::
from django.views.generic.edit import CreateView
from myapp.models import Author
class AuthorCreate(CreateView):
model = Author
UpdateView
----------
.. class:: django.views.generic.edit.UpdateView
A view that displays a form for editing an existing object, redisplaying
the form with validation errors (if there are any) and saving changes to
the object. This uses a form automatically generated from the object's
model class (unless a form class is manually specified).
**Ancestors (MRO)**
This view inherits methods and attributes from the following views:
* :class:`django.views.generic.edit.UpdateView`
* :class:`django.views.generic.detail.SingleObjectTemplateResponseMixin`
* :class:`django.views.generic.base.TemplateResponseMixin`
* ``django.views.generic.edit.BaseUpdateView``
* :class:`django.views.generic.edit.ModelFormMixin`
* :class:`django.views.generic.edit.FormMixin`
* :class:`django.views.generic.detail.SingleObjectMixin`
* :class:`django.views.generic.edit.ProcessFormView`
* :class:`django.views.generic.base.View`
**Attributes**
.. attribute:: template_name_suffix
The ``UpdateView`` page displayed to a ``GET`` request uses a
``template_name_suffix`` of ``'_form'``. For
example, changing this attribute to ``'_update_form'`` for a view
updating objects for the example ``Author`` model would cause the
default ``template_name`` to be ``'myapp/author_update_form.html'``.
**Example views.py**::
from django.views.generic.edit import UpdateView
from myapp.models import Author
class AuthorUpdate(UpdateView):
model = Author
DeleteView
----------
.. class:: django.views.generic.edit.DeleteView
A view that displays a confirmation page and deletes an existing object.
The given object will only be deleted if the request method is ``POST``. If
this view is fetched via ``GET``, it will display a confirmation page that
should contain a form that POSTs to the same URL.
**Ancestors (MRO)**
This view inherits methods and attributes from the following views:
* :class:`django.views.generic.edit.DeleteView`
* :class:`django.views.generic.detail.SingleObjectTemplateResponseMixin`
* :class:`django.views.generic.base.TemplateResponseMixin`
* ``django.views.generic.edit.BaseDeleteView``
* :class:`django.views.generic.edit.DeletionMixin`
* ``django.views.generic.detail.BaseDetailView``
* :class:`django.views.generic.detail.SingleObjectMixin`
* :class:`django.views.generic.base.View`
**Attributes**
.. attribute:: template_name_suffix
The ``DeleteView`` page displayed to a ``GET`` request uses a
``template_name_suffix`` of ``'_confirm_delete'``. For
example, changing this attribute to ``'_check_delete'`` for a view
deleting objects for the example ``Author`` model would cause the
default ``template_name`` to be ``'myapp/author_check_delete.html'``.
**Example views.py**::
from django.views.generic.edit import DeleteView
from django.core.urlresolvers import reverse_lazy
from myapp.models import Author
class AuthorDelete(DeleteView):
model = Author
success_url = reverse_lazy('author-list')
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