Question

所以在我的template中，我有以下代码：

<span class="state-txt">{{ state }}</span>

在我的views.py中，使用以下if / else循环处理它：

if user is not None:
            if user.is_active:
                login(request, user)            
                state = "You're successfully logged in!"
                return render_to_response('uc/portal/index.html', {'state':state, 'username':username}, context_instance=RequestContext(request))
            else:
                state = "Your account is not active, please contact UC admin."
        else:
            state = "Your username and/or password were incorrect."

基本上，它目前工作正常，但我希望每个state能够包含不同的＆lt; img＆gt;标签，但是当我输入state = "<img src="some.jpg"> Your username and/or password were incorrect."时，html无法正确呈现。有没有办法做我在Django尝试做的事情，或者我在咆哮错误的树？

Answer 1

我只是从视图中传递上下文中的图像URL，并在模板中使用它。像这样：

if user:
    if user.is_active:
        login(request, user)            
        state = "You're successfully logged in!"
        state_img = success_image_url
        return render_to_response('uc/portal/index.html', 
                 {'state': state, 
                  'state_img': state_img, 
                  'username':username
                 }, context_instance=RequestContext(request))
    else:
        state_img = inactive_image_url
        state = "Your account is not active, please contact UC admin."
else:
    state_img = invalid_credentials_url
    state = "Your username and/or password were incorrect."

并在模板中

<span class="state-txt">
    <img src="{{state_img}}" />{{ state }}
</span>

Answer 2

为了完整起见，karthikr已经发布了一个很好的解决方案：

html无法正确呈现的原因是因为Django模板语言自动假设{{ ... }}的所有输出都不安全，所有HTML中具有特殊含义的符号都将被转义（{{1变成<等。

要将字符串呈现为纯HTML代码，请使用<过滤器。

views.py：

safe

的index.html：

state = "<img src="some.jpg" /> Your username and/or password were incorrect."

Answer 3

不要渲染图像。试试if else

view.py

if user is not None:
        if user.is_active:
            login(request, user)            
            state = True
            return render_to_response('uc/portal/index.html', {'state':state, 'username':username}, context_instance=RequestContext(request))
        else:
            state = False
    else:
        state = False

模板中的

{%if state %}  
   <img></img>
   you are successfully logged in.
{%endif%}

Django / Python：views.py和传递文本字符串

3 个答案: