Question

Error Message:*<br/><br/>
NoReverseMatch at /
Reverse for 'get_travel_details' with arguments '()' and keyword arguments '{u'origin': u'bus_terminals.Bus_Terminal_Id', u'destination': u'bus_terminals.Bus_Terminal_Id', u'travel_date': u'travel_date'}' not found. 1 pattern(s) tried: ['(?P< travel_date >\\w+)/travel_date/(?P< origin >\\w+)/origin/(?P< destination >\\w+)/destination']

我试图通过表单操作将值传递给url的参数，这就是我的表单标签在我的html文件中看到的内容：

<form method = "POST" action ="{% url 'brats:get_travel_details' travel_date='travel_date' origin='bus_terminals.Bus_Terminal_Id' destination='bus_terminals.Bus_Terminal_Id' %}" id = "find_travel_form">

然后我在项目文件夹中的urls.py：

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^master/', admin.site.urls),
    url(r'^', include('bus_reservation_system.urls')),
    url(r'^(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination$', include('bus_reservation_system.urls')),

]

然后我在app文件夹中的urls.py：

from django.conf.urls import include, url
from . import views

app_name = "brats"

urlpatterns = [         
    url(r'^', views.index, name = "index"),
    url(r'^(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination', views.get_travel_details, name = "get_travel_details"),
    ]

参数：travel_date，origin，destination应该是要传递的字符串值。

这是我的views.py看起来：

def get_travel_details(request, travel_date, origin, destination):
    errors = []
    if request.method == 'POST':
        if not request.POST.get('travel_date', ''):
            errors.append('Please determine your date of travel.\n')
        if not request.POST.get('origin', ''):
            errors.append('Please determine your point of origin.\n')
        if not request.POST.get('destination', ''):
            errors.append('Please determine your point of destination.\n')

        if not errors:
            all_bus =  bus.objects.all()

        elif errors:
            travel_schedules = travel_schedule.objects.all()
            bus_terminals = bus_terminal.objects.all()
            bus_types = bus_type.objects.all()

            data = {'travel_schedules': travel_schedules, 'bus_terminals': bus_terminals, 'errors': errors}
            return render(request, 'pages/index.html', data)

Answer 1

您的网址仍在传递字符串，其中包含.，但您的正则表达式中并未包含该字符串。我怀疑你真的想要点并有一个字符串id所以只需删除引号..

所以改变

{% url 'brats:get_travel_details' travel_date='travel_date' origin='bus_terminals.Bus_Terminal_Id' destination='bus_terminals.Bus_Terminal_Id' %}

到

{% url 'brats:get_travel_details' travel_date='travel_date' origin=bus_terminals.Bus_Terminal_Id destination=bus_terminals.Bus_Terminal_Id %}

_{并确保Bus_Terminal_Id没有任何非字字符}

Answer 2

<强> TL;博士

要修复错误，请从主网址中删除以下行：

url(r'^(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination$', include('bus_reservation_system.urls')),

<强>解释

您有两个指向同一个应用的网址。因此，每次你写{% url 'brats:get_travel_details' ...}时，Django都会将其解析为最后一个注册的网址，在你的情况下是这样的：

url(r'^(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination$', include('bus_reservation_system.urls')),

最终解决了这个问题：

'(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination/(?P<travel_date>\w+)/travel_date/(?P<origin>\w+)/origin/(?P<destination>\w+)/destination'

正如您所看到的，最终解析的网址需要6个参数，但您只传递了3个参数。

这就是你收到错误的原因。

如何修复此NoReverseMatch错误？

2 个答案: