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from django.contrib.auth.forms import AuthenticationForm, PasswordChangeForm
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
class AdminAuthenticationForm(AuthenticationForm):
"""
A custom authentication form used in the admin app.
"""
error_messages = {
**AuthenticationForm.error_messages,
"invalid_login": _(
"Please enter the correct %(username)s and password for a staff "
"account. Note that both fields may be case-sensitive."
),
}
required_css_class = "required"
def confirm_login_allowed(self, user):
super().confirm_login_allowed(user)
if not user.is_staff:
raise ValidationError(
self.error_messages["invalid_login"],
code="invalid_login",
params={"username": self.username_field.verbose_name},
)
class AdminPasswordChangeForm(PasswordChangeForm):
required_css_class = "required"
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