django auth.login自定义error_messages

Question

如何覆盖默认的error_messages？例如required或invalid_login？我使用的是版本1.9.2。

from django.conf.urls import url, include
from django.contrib.auth import views as auth_views
from django.contrib.auth.decorators import user_passes_test
from django.conf import settings

anonymous_required =  user_passes_test(
    lambda user: user.is_anonymous(),
    settings.LOGIN_REDIRECT_URL,
    redirect_field_name = 'next')

urlpatterns = [
    url(r'^products/', include('products.urls', namespace = 'products')),
    url(r'^orders/', include('orders.urls', namespace = 'orders')),
    url(r'^calendar/', include('installation_dates.urls', namespace = 'installation_dates')),
    url(r'^supplies/', include('supplies.urls', namespace = 'supplies')),
    url(r'^manufacturer/', include('manufacturer.urls', namespace = 'manufacturer')),
    url(r'^users/', include('users.urls', namespace = 'users')),
    url(r'^login/$', anonymous_required(auth_views.login), name = 'login'),
    url(r'^logout/$', auth_views.logout, {'next_page': '/login/'}, name = 'logout'),
]

[解决方案]在我看来，这是最好的解决方案：

forms.py：

的一部分

from django.contrib.auth.forms import AuthenticationForm

class UserLoginForm(AuthenticationForm):
    error_messages = {
        'invalid_login': 'Podane dane logowania są niepoprawne.',
        'required_password': 'Wymagane jest podanie hasła.',
        'required_username': 'Wymagane jest podanie nazwy użytkownika.',
    }

    username = forms.CharField(
        error_messages = {
            'required': error_messages.get('required_username'),
        },
    )
    password = forms.CharField(
        error_messages = {
            'required': error_messages.get('required_password'),
        },
    )

和urls.py：

# -*- coding: utf-8 -*-

from django.conf.urls import url, include
from django.contrib.auth import views as auth_views
from django.contrib.auth.decorators import user_passes_test
from django.conf import settings
from users.forms import UserLoginForm

anonymous_required =  user_passes_test(
    lambda user: user.is_anonymous(),
    settings.LOGIN_REDIRECT_URL,
    redirect_field_name = 'next')

urlpatterns = [
    url(r'^products/', include('products.urls', namespace = 'products')),
    url(r'^orders/', include('orders.urls', namespace = 'orders')),
    url(r'^calendar/', include('installation_dates.urls', namespace = 'installation_dates')),
    url(r'^supplies/', include('supplies.urls', namespace = 'supplies')),
    url(r'^manufacturer/', include('manufacturer.urls', namespace = 'manufacturer')),
    url(r'^users/', include('users.urls', namespace = 'users')),
    url(r'^login/$', anonymous_required(auth_views.login), {'authentication_form': UserLoginForm}, name = 'login'),
    url(r'^logout/$', auth_views.logout, {'next_page': '/login/'}, name = 'logout'),
]

感谢您的帮助。