python - 如何在 Django 中自定义默认的身份验证登录表单？

Question

如何在 Django 中自定义默认登录表单？

# demo_project/urls.py
from django.contrib import admin
from django.urls import include, path

urlpatterns = [
    path('', include('pages.urls')),
    path('users/', include('users.urls')), # new
    path('users/', include('django.contrib.auth.urls')), # new
    path('admin/', admin.site.urls),
]

<!-- templates/registration/login.html -->
    <h2>Login</h2>
    <form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Login</button>
    </form>

上面的代码可以工作，但我需要自定义该 {{form.as_p}} 该表单在哪里或者可以覆盖吗？感谢您的帮助。

Answer 1

您可以覆盖默认的身份验证表单

像这样

from django.contrib.auth.forms import AuthenticationForm, UsernameField

from django import forms


class UserLoginForm(AuthenticationForm):
    def __init__(self, *args, **kwargs):
        super(UserLoginForm, self).__init__(*args, **kwargs)

    username = UsernameField(widget=forms.TextInput(
        attrs={'class': 'form-control', 'placeholder': '', 'id': 'hello'}))
    password = forms.CharField(widget=forms.PasswordInput(
        attrs={
            'class': 'form-control',
            'placeholder': '',
            'id': 'hi',
        }
))

在 url.py 中，您可以像这样传递此自定义身份验证表单

from django.contrib.auth import views

from myapp.forms import UserLoginForm
urlpatterns = [

    path(
        'login/',
        views.LoginView.as_view(
            template_name="login.html",
            authentication_form=UserLoginForm
            ),
        name='login'
)
]

此外，您还可以覆盖登录模板

并根据您的要求自定义模板

<form method="post">
    {{ form.non_field_errors }}
    <div class="form-group">
        
        <label for="{{ form.username.id_for_label }}">Username:</label>
        {{ form.username }}
        {{ form.username.errors }}

    </div>
    <div class="form-group">
       
        <label for="{{ form.password.id_for_label }}">Password:</label>
        {{ form.password }}
        {{ form.password.errors }}
    </div>
    <button type="submit">Login</button>
</form>