Question

我正在尝试传递值（如下面的view中所定义），以便在模板中使用。

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from Scanner.forms import SubmitDomain
from django.http import HttpResponse
from django.shortcuts import render
from django.template.context import RequestContext
#from django.template import loader


def index(request):
    return HttpResponse('<h1>Page was found</h1>')

def Scan(request):
        ## Setup Template.
        return render(request, 'VA/index.html',
                     {'pagetitle': 'Home'},
                     {'container_content' : 'Testing some content dude!'},
                     ##{'form' : 'form'},   
        context_instance=RequestContext(request, processors=[]))

        form = SubmitDomain(request.POST or None) # A form bound to the POST data

        if request.method == 'POST': # If the form has been submitted...
            if form.is_valid(): # If form input passes initial validation...
                form.cleaned_data['domainNm']  ## clean data in dictionary
                form.save()

我在模板中使用以下内容：

<title>Website Name - {% block pagetitle %}{% endblock pagetitle %}</title>
{% block container_content %}{% endblock container_content %}

错误我得到了：

ender_to_string() got multiple values for keyword argument 'context_instance'

我做错了什么？

请原谅我的新手。

Answer 1

您始终可以从视图中传递它们：

def your_view(request):
    # .... your code here ....

    return render(request, 'VA/index.html', {
        'form' : form,
        'page_title': 'My page',
        'meta_description': 'Some desc'
    })

在你的模板中：

<meta name="description" content="{{ meta_description }}">
<title>Website Name - {{ page_title }}</title>

然而，这似乎并不是真的干，因为你必须在每个视图和每个模板中重复它。所以我要做的是在基本模板中创建具有一些默认值的块，例如base.html：

<meta name="description" content="{% block blk_metadesc %} Some default meta here {% endblock blk_metadesc %}">
<title>Website Name - {% block blk_pagetitle %}Default title{% endblock blk_pagetitle %}</title>

然后，您可以在子模板中覆盖它们，例如child.html：

{% extends "base.html" %} {% block blk_metadesc %} {{ meta_description }} {% endblock blk_metadesc %} {% block blk_pagetitle %} {{ page_tile }} {% endblock blk_pagetitle %}

因此，在您的子模板中，您不必一遍又一遍地执行相同的操作，但如果您愿意，则只覆盖块中的默认值。

修改

您的观看代码非常混乱：

def Scan(request): ## Setup Template. return render(request, 'VA/index.html', # after you do 'return' in a function, the following code won't run {'pagetitle': 'Home'}, {'container_content' : 'Testing some content dude!'}, # this line caused the error, you can pass only ONE dict as the argument. ##{'form' : 'form'}, context_instance=RequestContext(request, processors=[])) # you don't really need this context_instance at all. # the following code won't run form = SubmitDomain(request.POST or None) # A form bound to the POST data if request.method == 'POST': # If the form has been submitted... if form.is_valid(): # If form input passes initial validation... form.cleaned_data['domainNm'] ## clean data in dictionary form.save()

我会像这样改写那个观点：

def Scan(request): form = SubmitDomain(request.POST or None) # A form bound to the POST data if request.method == 'POST': # If the form has been submitted... if form.is_valid(): # If form input passes initial validation... form.cleaned_data['domainNm'] ## clean data in dictionary form.save() return render(request, 'VA/index.html', { 'pagetitle': 'Home', 'container_content' : 'Testing some content dude!', 'form' : 'form' # comment out this line if you don't need the form. })

希望它有所帮助！

从块视图Django传递块值到模板

1 个答案: