使用参数'('',)'和关键字参数'{}'找不到"详细信息".尝试过1种模式:

Question

这里有一个Django/Python新手.我使用的是python 3.4和Django 1.7版本.

我试图让我的索引页面加载超链接,我看到这个问题.

我的index.html(删除不需要的行)

<form action="{% url 'testapp:search' %}" method="get">
{% csrf_token %}

        <a href="{% url 'testapp:detail' morphological %}"">Morphological</a> 

</form>

urls.py

from django.conf.urls import patterns, url

from testapp import views

urlpatterns = patterns('',
    #url(r'^$', views.IndexView.as_view(), name='index'),
    url(r'^$', 'testapp.views.index', name='index'),
    #url(r'^search-form/$', views.IndexView.as_view(), name='index'),
    url(r'^search-form/$', 'testapp.views.index', name='index'),
    #url(r'^(?P<pk>\d+)/$', views.DetailView.as_view(), name='detail'),
    #url(r'^option=(?P<option>\d+)/$', views.DetailView.as_view(), name='detail'),
    url(r'^detail/(?P<val>\w+)/?$', 'testapp.views.detail', name='detail'),
    #url(r'^search/$', views.search, name='search'),
    url(r'^search/$', views.search, name='search'),
)

views.py

from django.shortcuts import render, get_object_or_404
from django.shortcuts import render_to_response

# Create your views here.
from django.http import HttpResponse, HttpResponseRedirect

#from polls.models import Question, Choice

from testapp.models import Molecular, Morphological

#from django.template import RequestContext, loader

from django.http import Http404
from django.core.urlresolvers import reverse
from django.template import RequestContext

from django.views import generic

def index(request):
    return render_to_response('testapp/index.html', context_instance=RequestContext(request))

def search(request):
    if 'q' in request.GET:
        message = 'You searched for: %r' % request.GET['q']
    else:
        message = 'You submitted an empty form.'
    return HttpResponse(message)

def detail(request, val):
    message = 'hello form.'
    return HttpResponse(message)


#class DetailView(generic.DetailView):
#    model = Morphological
#    template_name = 'testapp/detail.html'

我试图传递一个参数,如果单击链接并使用该参数来查询数据库.我尝试了各种各样的东西,此时我被卡住了.我想要一个字符串,而不是我在标准民意调查应用程序中使用的主键.这只是我的正则表达式错了吗？

任何帮助解决这个问题都会有很大帮助.谢谢.

Answer 1

在URL中的参数周围放置单引号:

<a href="{% url 'testapp:detail' 'morphological' %}"">Morphological</a>