Getting the global error of a form

Author:: baptiste
Posted:: May 19, 2007
Language:: Python
Version:: .96
Tags:: newforms forms
Score:: 1 (after 1 ratings)

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You may want to access to "global" errors in your template, typically when you have a custom clean() method which checks several fields. {{ form.errors }} gives an < ul >, which is often not what you want, and {{ form.errors|join:", " }} iterates in the keys of errors (which are the names of fields, uninteresting). The global errors's key is "all", and Django doesn't allow us to do {{ form.errors.__all__ }}.

This method returns an array, like a classic {{ form.field.errors }}, and can be used with a join : {{ form.get_global_errors|join:", " }}.

class MyForm(forms.Form):

    def get_global_errors(self):
        errors = dict(self.errors)
        return list(errors.get("__all__", []))

Comments

justinw (on May 19, 2007):

def get_global_errors(self): return self.errors and self.errors.get('_all_',[])

Archatas (on September 12, 2008):

I am not sure about the situation at the time of writing this post, but global errors can be accessed by {{ form.non_field_errors }}

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Getting the global error of a form

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