Django snippets: Formalchemy hack for newforms-based form validation

Formalchemy hack for newforms-based form validation

class ContactForm(forms.Form):

    def save(self, session=None, app_label=None):
        """ Save or update a new `Contact` """    
        # create this composite entity
        _data = {}
        for key,val in self.cleaned_data.items():
            _data[app_label+'--%s' % key] = val
        fs = FieldSet(Contact, session=session, data=_data)
        if fs.validate():
            fs.sync()
        return None

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Very simple proof-of-concept that uses the django.forms library (newforms) for validation, and formalchemy for saving the model instance using sqlalchemy.

it can be used like this (pseudo-code):

if form.is_valid(): form.save(session=Session, app_label='Contact')

Feel free to improve the concept. Ideally, either use formalchemy or django.forms but not both like this example. ;-)

Author:: erob
Posted:: January 19, 2009
Language:: Python
Django Version:: 1.0
Tags:: newforms hack formalchemy notmm sqlalchemy
Score:: 0 (after 0 ratings)

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erob (on January 19, 2009):

first snippet :-)