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Overriding ModelForm field error messages in Django 1.6

hjwp the wonderful Test-Driven Development with a Python book demonstrates overriding the default ModelForm error messages in chapter 11 :

from django import forms

from lists.models import Item

class ItemForm(forms.models.ModelForm):

    class Meta:
        [...]


    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        empty_error = "You can't have an empty list item"
        self.fields['text'].error_messages['required'] = empty_error

But then proclaims (this work continues) ...

Django 1.6 has an easier way to override field error messages. I havent managed to implement it yet, but you should watch it for free and use it!

This turned out to be a surprisingly difficult topic to search for, and I hope to save time. What is its easier way?

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1 answer

From the release note for Django 1.6 :

ModelForm Meta.

  • , localized_fields, ( ).
  • , help_texts error_messages , . .

:

class AuthorForm(ModelForm):
    class Meta:
        model = Author
        fields = ('name', 'title', 'birth_date')
        labels = {
            'name': _('Writer'),
        }
        help_texts = {
            'name': _('Some useful help text.'),
        }
        error_messages = {
            'name': {
                'max_length': _("This writer name is too long."),
            },
        }

: Django ModelForm - Meta?

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