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#1 Dec. 30, 2010 16:25:24

B.
Registered: 2009-11-02
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ModelForm validation in 1.2.3


Hello:

In 1.2 ModelForm validation was changed so that not only does it
check the form validation, but it does validation of the model as
well.

I have a model that has custom validation for one of its fields,
which should be unique in the table. Now I have a front end form,
created by ModelForm for this model.

I want do to the following:

1. Check if the fields are correctly filled in, as per the custom
validator written for this model.
2. If an entry already exists for using the 'unique' field, return
that object.
3. If and entry doesn't exist, create a new object.

In the old django, before this change, I could easily do it:

if request.method = 'POST':
form = CustomerForm(request.POST)
if form.is_clean():
try:
customer =
Customer.objects.get(email=form.cleaned_data)
except Customer.DoesNotExist:
customer = form.save()

In 1.2.3, this logic always fails because "is_clean()" fails if an
existing customer enter's their email address. How can I do the same
using django 1.2.3?

Thanks.

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#2 Dec. 30, 2010 16:33:18

F.
Registered: 2009-11-02
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ModelForm validation in 1.2.3


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 30/12/10 17:25, Burhan wrote:
> In 1.2.3, this logic always fails because "is_clean()" fails if an
> existing customer enter's their email address. How can I do the same
> using django 1.2.3?http://docs.python.org/tutorial/errors.html-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
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#3 Dec. 30, 2010 21:22:49

B.
Registered: 2009-11-02
Reputation: +  0  -
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ModelForm validation in 1.2.3


The question is how do I get the modelform to only check for form
validity, and not model validity (like it did before). I don't see
what your link has to do with that.

On Dec 30, 7:32 pm, Ferran <fer...@fompi.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> On 30/12/10 17:25, Burhan wrote:
>
> >  In 1.2.3, this logic always fails because "is_clean()" fails if an
> > existing customer enter's their email address. How can I do the same
> > using django 1.2.3?
>
>http://docs.python.org/tutorial/errors.html> -----BEGIN PGP SIGNATURE-----
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> =jP4n
> -----END PGP SIGNATURE-----

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