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Code Issues 32 Releases Wiki Activity

Revised the text in the 'Processing the data from a form' section.

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This commit is contained in:
Audrey Roy
2012-06-07 21:07:43 +02:00
committed by Aymeric Augustin
parent 3c05b500a5
commit 7ab6e32843
1 changed files with 21 additions and 13 deletions
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34
docs/topics/forms/index.txt
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@@ -131,25 +131,31 @@ The distinction between :ref:`ref-forms-api-bound-unbound` is important:
Handling file uploads with a form
---------------------------------
To see how to handle file uploads with your form see
:ref:`binding-uploaded-files` for more information.
To see how to handle file uploads with your form, see
:ref:`binding-uploaded-files`.
Processing the data from a form
-------------------------------
Once ``is_valid()`` returns ``True``, you can process the form submission safe
in the knowledge that it conforms to the validation rules defined by your form.
While you could access ``request.POST`` directly at this point, it is better to
access ``form.cleaned_data``. This data has not only been validated but will
also be converted in to the relevant Python types for you. In the above example,
``cc_myself`` will be a boolean value. Likewise, fields such as ``IntegerField``
and ``FloatField`` convert values to a Python int and float respectively. Note
that read-only fields are not available in ``form.cleaned_data`` (and setting
a value in a custom ``clean()`` method won't have any effect) because these
Once ``is_valid()`` returns ``True``, the successfully validated form data
will be in the ``form.cleaned_data`` dictionary. This data will have been
converted nicely into Python types for you.
.. note::
You can still access the unvalidated data directly from ``request.POST`` at
this point, but the validated data is better.
In the above example, ``cc_myself`` will be a boolean value. Likewise, fields
such as ``IntegerField`` and ``FloatField`` convert values to a Python int and
float respectively.
Read-only fields are not available in ``form.cleaned_data`` (and setting
a value in a custom ``clean()`` method won't have any effect). These
fields are displayed as text rather than as input elements, and thus are not
posted back to the server.
Extending the above example, here's how the form data could be processed:
Extending the earlier example, here's how the form data could be processed:
.. code-block:: python
@@ -167,7 +173,9 @@ Extending the above example, here's how the form data could be processed:
send_mail(subject, message, sender, recipients)
return HttpResponseRedirect('/thanks/') # Redirect after POST
For more on sending email from Django, see :doc:`/topics/email`.
.. tip::
For more on sending email from Django, see :doc:`/topics/email`.
Displaying a form using a template
----------------------------------