newforms: Add field-specific error in form.clean()

1
2
3
4
5
6
7
8
def clean(self):	
    try:
        # do validation here
    except ValidationError, e:
        if blame_field:
	    self._errors[blame_field] = e.messages
        else:
            raise e

Comments

Archatas (on September 12, 2008):

This is how you can blame different fields for different errors: 

def clean(self):
    cleaned = self.cleaned_data
    errors = False

    # ...
    if there_are_errors_for_field1:
        self._errors['field1'] = self._errors.get('field1', [])
        self._errors['field1'].append(_("Field 1 is invalid"))
        errors = True

    # ...
    if there_are_errors_for_field2:
        self._errors['field2'] = self._errors.get('field2', [])
        self._errors['field2'].append(_("Field 2 is invalid"))
        errors = True

    # ...
    non_field_errors = []
    if there_are_other_errors:
        non_field_errors.append(_("Non field error"))
        errors = True

    if errors:
        raise form.ValidationError(non_field_errors)

#

Archatas (on September 12, 2008):

oh.. I forgot to return the cleaned dictionary at the end. so there should be 

return cleaned

after all.

#

(Forgotten your password?)

You may use Markdown syntax here, but raw HTML will be removed.