CODEWITHSUNDEEP
django
JSRB
JSRB

Reputation: 2623

Why does Django's AuthenticationForm return weird str in error message

I've recently implemented the Django AuthenticationForm into my project and recognized that the error returns some weird str __all__

Returned error message in the frontend when using a wrong password:

enter image description here

My template

<div class="error-wrapper">
     <div class="errors">{{ form.errors }}</div>
</div>

So I took a look into the Django source code to check out the form which doesn't include __all__ in the error message str:

class AuthenticationForm(forms.Form):
    """
    Base class for authenticating users. Extend this to get a form that accepts
    username/password logins.
    """
    username = UsernameField(widget=forms.TextInput(attrs={'autofocus': True}))
    password = forms.CharField(
        label=_("Password"),
        strip=False,
        widget=forms.PasswordInput(attrs={'autocomplete': 'current-password'}),
    )

    error_messages = {
        'invalid_login': _(
            "Please enter a correct %(username)s and password. Note that both "
            "fields may be case-sensitive."
        ),
        'inactive': _("This account is inactive."),
    }

What do I miss?

Upvotes: 1

Views: 271

Answers (1)

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 477338

The .errors property [Django-doc] returns a dictionary of errors where the keys represent the field where the error occurred, and the value a list of errors. For errors that are not specific to one field, but to two or more fields, it will use __all__. These are thus non-field errors.

When you render a Django from in a template, you can use {{ form.non_field_errors }} to render these, and {{ form.some_field.errors }} to render the errors dedicates to a certain field. You can also iterate over form.non_field_errors and form.some_field.errors to obtain the errors one-by-one, and render these in a different way.

You can thus render non-field errors with:

<div class="error-wrapper">
     <div class="errors">{{ form.non_field_errors }}</div>
</div>

Upvotes: 2

Related Questions