关键字参数
[英]Keyword arguments
问题描述
I am trying different types of views for practice and I am getting following error message in Django 1.5:- 
我正在尝试不同类型的视图进行练习，并且在Django 1.5中收到以下错误消息：-
context = super(HelloTemplate, self).get_context_data(**kwargs)
NameError: global name 'kwargs' is not defined.
My urls.py for project: 我的项目的urls.py：
urlpatterns = patterns('',
url(r'^hello/$', 'article.views.hello'),
url(r'^hello_template/$', 'article.views.hello_template'),
url(r'^hello_template_simple/$', 'article.views.hello_template_simple'),
url(r'^hello_class_view/$', HelloTemplate.as_view()),
)
My Views.py: - 我的Views.py：-
from django.http import HttpResponse
from django.template.loader import get_template
from django.template import Context
from django.shortcuts import render_to_response
from django.views.generic.base import TemplateView
def hello(request):
name = 'Mudassar'
html = "<html><body>Hi %s, this seems to worked!</body></html>" % name
return HttpResponse(html)
def hello_template(request):
name = 'Mudassar'
t = get_template('hello.html')
html = t.render(Context({'name': name}))
return HttpResponse(html)
def hello_template_simple(request):
name = 'Mudassar'
return render_to_response('hello.html', {'name':name})
class HelloTemplate(TemplateView):
template_name = 'hello_class.html'
def get_context_data(self, **kwarg):
context = super(HelloTemplate, self).get_context_data(**kwargs)
context['name'] = 'Mudassar'
return context
3 个解决方案
解决方案1
4 2014-03-14 09:16:43
Because the parameter in get_context_data is named kwarg and you're referring to it by kwargs (in plural). 因为get_context_data的参数名为kwarg ，所以您使用kwargs （以复数形式）引用它。
I suggest you to use kwargs in plural since is more standard :) 我建议您使用kwargs复数形式，因为它比较标准 :)
解决方案2
2 2014-03-14 09:16:53
Replace : 更换：
def get_context_data(self, **kwarg):
context = super(HelloTemplate, self).get_context_data(**kwargs)
context['name'] = 'Mudassar'
return context
With : 与：
def get_context_data(self, **kwargs):
context = super(HelloTemplate, self).get_context_data(**kwargs)
context['name'] = 'Mudassar'
return context
:) :P :)：P
解决方案3
0 2014-03-14 09:21:57
You have to use same variable you are passing. 您必须使用要传递的相同变量。
class HelloTemplate(TemplateView):
template_name = 'hello_class.html'
def get_context_data(self, **kwargs):
context = super(HelloTemplate, self).get_context_data(**kwargs)
context['name'] = 'Mudassar'
return context
If you want to use kwargs then pass kwargs if you want to use kwarg then pass same in super. 如果要使用kwargs则传递kwargs如果要使用kwarg则在super中传递相同的参数。
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