Hi all
Im trying to understand newforms and comparing the newforms docs at
http://www.djangoproject.com/documentation/newforms/ with "Using djangos
newforms" at
http://code.pui.ch/2007/01/07/using-djangos-newforms/ and Mike Cantelon's
code at
http://www.mikecantelon.com/?q=node/22
Django's Newforms Docs
----------------------
In the newforms docs you subclass Form with "class ContactForm(forms.Form):" to
create the form object.
1. Should this be in models.py or views.py ?
2. Then one instantiates the class f = ContactForm() but is this in view.py or
models.py?
Philipp Keller's Example
------------------------
In the "Using djangos newforms" Philipp Keller uses in models.py
class Entry(models.Model):
etc...
But then he defines this method:
def add_entry(request):
EntryForm = forms.models.form_for_model(Entry)
etc...
and I'm not sure where this belongs ... in models.py or views.py.
Mike Cantelon's Example
-----------------------
This is more clear about which file should contain what code.
"ContactForm = forms.form_for_model(Contact)"
is in views.py
Is form_for_model always called from a def within views.py?
Both Philipp Keller and Mike Cantelons code uses form_from_model so its hard to
follow and compare with the Django newforms docs. (Thanks though to Mike and
Philipp
for placing their code up).
What I have got so far
----------------------
I have a small test form working using form_for_model and I have placed the
class
statement in models.py
# In models.py:
class Data(models.Model):
experiment_id = models.CharField(maxlength=10)
procedure_id = models.CharField(maxlength=10)
field_name = models.CharField(maxlength=255, core=True)
value = models.CharField(maxlength=255, core=True)
# In views.py
def test(request):
# form_for_model() returns a Form class, not a Form instance. You have to
# instantiate the form class before sending it to the template, like so:
# SomeForm = forms.form_for_model(Project)
# form = SomeForm()
# return render_to_response('app/my.html', {'form': form})
DataForm = forms.form_for_model(Data)
if request.method == 'POST':
form = DataForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect("/")
else:
form = DataForm()
data = {'Procedure': 'test',
'Field': 'temperature',
'Value': '20C',
'form': form,
}
return render_to_response('lab/test.html', data)
# In test.html
<form action="." method="post">
<table>
{{ form }}
</table>
<input type="submit" value=" Submit " />
</form>
Also I'm confused on the save methods. Some exemples use form.save() and others
define a save method under the model Class.
Sorry this is a bit of a long post with many questions. The whole newforms just
has
not yet "clicked" :-)
--
Michael Lake
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