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