在base.html中包括Django登录表单 [英] Include Django login form in base.html

问题描述

我是Django的新手，我希望将登录表单包含在基本html中.

我有以下内容:

"registration/login.html"

  {％，如果form.has_errors％}< p>您的用户名和密码不匹配.</p> ;，请重试.{％ 万一 ％}< form method ="post" action =.">{％csrf_token％}< p><标签>用户名:</label>{{form.username}}</p>< p><标签>密码:</label>{{form.password}}</p><输入type ="submit" value =登录"/><input type="hidden" name="next" value="/"/></form> 

urls.py

  url(r'^ login/$'，'django.contrib.auth.views.login')， 

我在base.html中包括以下内容:

  {％包括"registration/login.html"％} 

它将呈现除用户名和密码文本框以外的所有内容.我想我缺少什么.

解决方案

好的，我认为问题是您期望魔术".

Django的观点是模板非常愚蠢.它们仅具有通过以下两种方式之一传递给他们的可用变量:

1. 通过context_processor(请参阅Aidan的答案)
2. 在调用render(或render_to_response)时传递

在您访问 /login 时呈现表单的原因，但在其他情况下，是因为您使用的 Django 视图 django.contrib.auth.views.login，将Django AuthenticationForm传递给您的模板.

在此处查看源代码: https://github.com/django/django/blob/master/django/contrib/auth/views.py

没有其他视图神奇地"获得该变量集.

所以您必须:

1. 在整个应用的每个视图中自行设置
2. 使用上下文处理器.

这是一个简单的 context_processors.py ，它使用Django的东西(基于Aidan的东西):

  def include_login_form(request):从django.contrib.auth.forms导入AuthenticationForm形式= AuthenticationForm()返回{'login_form':form} 

然后，按照艾丹指出的那样做:

  TEMPLATE_CONTEXT_PROCESSORS =(#....'yourapp.context_processors.include_login_form') 

现在，问题在于，当您仅包含模板时，登录表单位于名为"login_form"的变量中，但是当django的内置视图使用模板时，登录表单位于名为"form"的变量中./p>

尽管我确信有人可以解决这个问题，但是如果没有好的干净"解决方案，那将是一场磨难.

也许检查在context_processor中传递的上下文，如果已经存在一个名为"form"的变量，请查看它是否是AuthenticationForm的实例，如果是，则使用它来代替.

I am new to Django and I would like to include my login form in base html.

I have the following:

"registration/login.html"

{% if form.has_errors %}
    <p>Your username and password didn't match.
        Please try again.</p>
{% endif %}
<form method="post" action=".">
    {% csrf_token %}
    <p><label>Username:</label>
        {{ form.username }}</p>
    <p><label>Password:</label>
        {{ form.password }}</p>
    <input type="submit" value="login" />
    <input type="hidden" name="next" value="/" />
</form>

urls.py

url(r'^login/$', 'django.contrib.auth.views.login'),

And i included in base.html the following:

{% include "registration/login.html" %}

It renders everything except the textboxes for the username and password. I think I am missing something.

解决方案

OK, the the problem, I think, is you're expecting "magic".

Django's views are templates are pretty dumb. They only have the variables available to them that are passed in one of two ways:

1. Through a context_processor (see Aidan's answer)
2. Passed in when calling render (or render_to_response)

The reason the form renders when you visit /login, but in no other case, is because the Django view you're using django.contrib.auth.views.login, passed the Django AuthenticationForm into your template for you.

Review the source here: https://github.com/django/django/blob/master/django/contrib/auth/views.py

No other view "magically" gets that variable set.

So you have to either:

1. Set it yourself in every view across your whole app
2. Use a context processor.

Here's an easy context_processors.py which uses the Django stuff (based on Aidan's):

def include_login_form(request):
    from django.contrib.auth.forms import AuthenticationForm
    form = AuthenticationForm()
    return {'login_form': form}

Then, do as Aidan points out:

TEMPLATE_CONTEXT_PROCESSORS = (
    #....
    'yourapp.context_processors.include_login_form'
)

Now, the problem is that, when you just include the template, the login form is in a variable called "login_form", but when django's built-in view uses your template, it's in a variable called "form".

So that's an ordeal without a good "clean" solution, though I'm sure one could sort it out.

Maybe check the context passed in in your context_processor, and if a variable already exists called "form", see if it's an instance of AuthenticationForm, and if it is, use it instead.

这篇关于在base.html中包括Django登录表单的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！