Django-除非刷新页面，否则会话变量不会更改 [英] Django - Session variables does not change unless the page is refreshed

问题描述

我正在使用会话变量来检查用户是以承包商还是雇主

I am using a session variable to check whether the user is logged in as a contractor or an employer

承包商时:

request.session['LoggedAsContractor'] = True

当雇主时:

request.session['LoggedAsContractor'] = False

然后，我实现了两种转换方法，即转译给承包商和toEmployer，只需更改会话变量即可.

I then implemented two switch methods, toContractor & toEmployer, that simply changes the session variable.

在HTML视图中，当我单击切换"按钮时，该变量不会更改，并且没有其他更改，但是在刷新页面时，该变量也会更改，并且其他所有内容.

From the HTML view, when I click the switch button, the variable does not change and nothing else changes, but when I refresh the page, the variable changes and everything else.

在本地主机上运行项目时不会发生此错误，只有在部署项目(Gondor)时才会发生.

这是我参加的会议的类型:

This is the type of session I have :

INSTALLED_APPS = (
'django.contrib.sessions',
)

MIDDLEWARE_CLASSES = (
'django.contrib.sessions.middleware.SessionMiddleware',
)

更新

这是 toContractor 方法，由 Switch

def switchToContractor(request, user_name):
    request.session['LoggedAsContractor'] = True
    if "employer" in request.GET['next']:
        if str(request.user) == user_name:
            return redirect('/contractor/' + user_name + '/')
        else:
            return redirect(request.GET['next'])
    else:
        return redirect(request.GET['next'])

request.session ['LoggedAsContractor'] = True 和 request.session ['LoggedAsContractor'] = False 之间的区别是HTML中的视图.

The difference between request.session['LoggedAsContractor'] = True and request.session['LoggedAsContractor'] = False, is the view in the HTML.

HTML代码:

{% if request.session.LoggedAsContractor %}
    <!-- Show some buttons -->
{% else %}
    <!-- Show other buttons -->
{% endif %}

更新2

这是包含切换"按钮的HTML代码:

This is the HTML code that contains the Switch button :

{% if request.session.LoggedAsContractor %}
    <a href="/contractor/{{request.user}}/switch/?next={{request.path}}">Switch to Employer View</a>
{% else %}
    <a href="/employer/{{request.user}}/switch/?next={{request.path}}">Switch to Contractor View</a>
{% endif %}

URL /contractor/username/switch/重定向到方法 switchToEmployer .

the url /contractor/username/switch/ redirects to the method switchToEmployer.

URL /employer/username/switch/重定向到方法 switchToContractor .

the url /employer/username/switch/ redirects to the method switchToContractor.

推荐答案

代替重定向，您应该使用更新的会话来呈现响应.例如:

Instead of redirecting, you should instead render a response with the updated session. For example:

def my_example(request):    
    request.session['key'] = True
    response = render_to_response("example.html", context_instance = RequestContext( request ), mimetype = "text/html" )
    return response

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