I am going crazy trying to figure out how to do a specific validation
setup via FormWizard.
Basically I have a bunch of forms that need regular validation but
also get validated as part of the program flow.
e.g:
First form: enter group name -> validate by checking that group does
not exist in AD.
If exists validation error,
if not exist create group.
This works fine until you have to go back and get the data again as
this re validates the form (and since the group now exists it is
invalid) Obviously if I could wait till then end to create the group I
would but other parts of the validation rely on it being there so it's
not really an option.
I have looked at storing the data elsewhere as I go, but this is messy
and form wizard also re validates everything at the end anyway.
My current attempt is to create an extra clean method for each form (I
like this idea in that is is neat and keep the types of validation
separate.) I then trigger the extra part of the validation from the
process_step method of the wizard. I can get this to work and raise
errors where needed but I would like it to look like a normal
validation error and re display the form, so far I've had no luck.
Any help would be much appreciated.
Here is my test code:
class test1_form(forms.Form):
data1 = forms.CharField(label='Data 1', required=False)
def clean(self):
if self.cleaned_data['data1'] == 'int':
raise forms.ValidationError("Internal Error")
return self.cleaned_data
def extra_clean(self):
if self.cleaned_data['data1'] == 'ext':
self._errors['data1'] = [u"External Validation Error"]
raise forms.ValidationError("External Validation Error")
class TestFormWizard(FormWizard):
def get_template(self, step):
return 'dev/testwiz.html'
def done(self, request, form_list):
return HttpResponse('Done')
def process_step(self, request, form, step):
try:
form.extra_clean()
except forms.ValidationError:
pass #triger a form redisplay here somehow.
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