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Ich versuche eine Website auf cookeicutter einzurichten, ich habe eine neue App namens "bots" erstellt und eine Klasse namens Trade and Unit in models hinzugefügt. Ich habe zwei klassenbasierte Ansichten innerhalb von views.py erstellt. Detail- und Listenansicht. Die Detailansicht für den Handel funktioniert einwandfrei und weist auf den richtigen Trade hin. Wenn ich jedoch die HTML-Seite aufrufen möchte, die auf die Handelslistenansicht verweist, gibt die Seite den folgenden Fehler zurück.django.urls.exceptions.NoReverseMatch Klassenbasierte Listenansichten
django.urls.exceptions.NoReverseMatch
django.urls.exceptions.NoReverseMatch: Reverse for 'trade-detail' with
arguments '('1',)' and keyword arguments '{}' not found. 0 pattern(s)
tried: []
Ich glaube, etwas mit dem get_absolute_url falsch ist, weil, wenn ich es aus dem model.py der Fehler oben aufgeführte Liste entfernen weggeht und die Seite macht, aber dann werden die Links nicht funktionieren.
Die meisten meiner Code ist aus diesem Tutorial: https://developer.mozilla.org/en-US/docs/Learn/Server-side/Django/Generic_views
Models.py
from django.db import models
from datetime import date
from django.urls import reverse
from django.urls import reverse_lazy
from django.conf import settings
import uuid
class Unit(models.Model):
TRADE_UNIT = (
('ETH', 'Ethereum'),
('BTC', 'Bitcoin'),
('LTC', 'Litecoin'),
('IOT', 'IOTA'),
('OMG', 'OmiseGo'),
('BCH', 'BitcoinCash'),
)
sell = models.CharField(max_length=3, choices=TRADE_UNIT, blank=True, default='ETH', help_text='Currency to Sell')
buy = models.CharField(max_length=3, choices=TRADE_UNIT, blank=True, default='BTC', help_text='Currency to Buy')
def get_absolute_url(self):
"""
Returns the url to access a particular instance.
"""
return reverse('unit-detail', args=[str(self.id)])
def __str__(self):
"""
String for representing the Model object.
"""
return '%s, %s' % (self.sell, self.buy)
class Meta:
ordering = ['sell']
class Trade(models.Model):
title = models.CharField(max_length=200)
unit = models.ForeignKey(Unit, on_delete=models.SET_NULL, blank=True, null=True)
def get_absolute_url(self):
"""
Returns the url to access a particular book instance.
"""
return reverse('trade-detail', args=[str(self.id)])
def __str__(self):
"""
String for representing the Model object.
"""
return self.title
class Meta:
db_table = 'bots_trade'
ordering = ['title']
Views.py
from django.shortcuts import render
import datetime
from django.shortcuts import get_object_or_404
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from .models import Trade, Unit, TradeInstance
import uuid
# Create your views here
class TradeDetailView(generic.DetailView):
model = Trade
redirect_field_name = 'redirect_to'
class TradeListView(generic.ListView):
model = Trade
redirect_field_name = 'redirect_to'
class UnitDetailView(generic.DetailView):
model = Unit
redirect_field_name = 'redirect_to'
class UnitListView(generic.ListView):
model = Unit
redirect_field_name = 'redirect_to'
def index(request):
"""
View function for home page of site.
"""
return render(
request,
'bots/index.html',
)
Bots App: urls.py
from django.conf.urls import url
from . import views
urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'^trades/$', views.TradeListView.as_view(), name='trades'),
url(r'^trade/(?P<pk>\d+)$', views.TradeDetailView.as_view(), name='trade-detail'),
url(r'^units/$', views.UnitListView.as_view(), name='unit'),
url(r'^unit/(?P<pk>\d+)$', views.UnitDetailView.as_view(), name='unit-detail'),
]
Tracecback EDIT2
Das mit dem Modellcode Handel ist:
def get_absolute_url(self):
"""
Returns the url to access a particular book instance.
"""
return reverse('trade-detail', args=(self.id,))
/brechen
django.urls.exceptions.NoReverseMatch
django.urls.exceptions.NoReverseMatch: Reverse for 'trade-detail' with arguments '(1,)' and keyword arguments '{}' not found. 0 pattern(s) tried: []
Traceback (most recent call last)
File "/usr/local/lib/python3.5/site-packages/django/contrib/staticfiles/handlers.py", line 63, in __call__
return self.application(environ, start_response)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/wsgi.py", line 170, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/base.py", line 124, in get_response
response = self._middleware_chain(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/utils/deprecation.py", line 136, in __call__
response = self.get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 44, in inner
response = response_for_exception(request, exc)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 94, in response_for_exception
response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 136, in handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/usr/local/lib/python3.5/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response
six.reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.5/site-packages/six.py", line 693, in reraise
raise value
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/exception.py", line 42, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/base.py", line 217, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python3.5/site-packages/django/core/handlers/base.py", line 215, in _get_response
response = response.render()
File "/usr/local/lib/python3.5/site-packages/django/template/response.py", line 109, in render
self.content = self.rendered_content
File "/usr/local/lib/python3.5/site-packages/django/template/response.py", line 86, in rendered_content
content = template.render(context, self._request)
File "/usr/local/lib/python3.5/site-packages/django/template/backends/django.py", line 66, in render
return self.template.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 208, in render
return self._render(context)
File "/usr/local/lib/python3.5/site-packages/django/test/utils.py", line 94, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 994, in render
bit = node.render_annotated(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 961, in render_annotated
return self.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/loader_tags.py", line 174, in render
return compiled_parent._render(context)
File "/usr/local/lib/python3.5/site-packages/django/test/utils.py", line 94, in instrumented_test_render
return self.nodelist.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 994, in render
bit = node.render_annotated(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 961, in render_annotated
return self.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/defaulttags.py", line 315, in render
return nodelist.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 994, in render
bit = node.render_annotated(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 961, in render_annotated
return self.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/defaulttags.py", line 209, in render
nodelist.append(node.render_annotated(context))
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 961, in render_annotated
return self.render(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 1044, in render
output = self.filter_expression.resolve(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 711, in resolve
obj = self.var.resolve(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 852, in resolve
value = self._resolve_lookup(context)
File "/usr/local/lib/python3.5/site-packages/django/template/base.py", line 915, in _resolve_lookup
current = current()
File "/app/vicki/bots/models.py", line 50, in get_absolute_url
return reverse('trade-detail', args=(self.id,))
File "/usr/local/lib/python3.5/site-packages/django/urls/base.py", line 91, in reverse
return force_text(iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs)))
File "/usr/local/lib/python3.5/site-packages/django/urls/resolvers.py", line 392, in _reverse_with_prefix
(lookup_view_s, args, kwargs, len(patterns), patterns)
django.urls.exceptions.NoReverseMatch: Reverse for 'trade-detail' with arguments '(1,)' and keyword arguments '{}' not found. 0 pattern(s) tried: []
Sind Sie Namespace-URLs? – mariodev