所以我完成了我的应用程序,有几个模型。这个特殊的错误只出现在某些值上。示例:每个用户都注册了一个课程和一年。因此,在一个页面中,我试图显示所选年度属于该课程的所有模块。当用户在year 3
学习时,它就工作了。当它是year 2
时,它抛出那个错误。你知道吗
Reverse for 'module_details_upcoming' with arguments '(10L,)' and keyword arguments '{}' not found. 1 pattern(s) tried: ['studies/module/(?P<module_id>\\d)/upcoming/$']
在错误页面中,它抱怨{% url "module_details_upcoming" module.id %}
,我猜也是{% url "module_details_previous" module.id %}
。你知道吗
下面你可以看到我的代码:
你知道吗视图.py你知道吗
def modules(request):
if request.user.is_authenticated():
user_id = request.user.id
try:
studying_course = Student.objects.get(user__id=user_id).course
studying_year = Student.objects.get(user__id=user_id).year
except Student.DoesNotExist:
return HttpResponseRedirect(reverse('step2'))
try:
modules_list = Module.objects.filter(course=studying_course,year=studying_year).exclude(name="school")
except Module.DoesNotExist:
modules_list = None
# import pdb; pdb.set_trace()
return render_to_response("studies/modules.html", {'course': studying_course, 'year': studying_year, 'modules': modules_list,}, RequestContext(request))
else:
return HttpResponseRedirect(reverse('home'))
def module_details_upcoming(request, module_id):
if request.user.is_authenticated():
user_id = request.user.id
dated = True
try:
studying_course = Student.objects.get(user__id=user_id).course
studying_year = Student.objects.get(user__id=user_id).year
except Student.DoesNotExist:
return HttpResponseRedirect(reverse('step2'))
try:
module = Module.objects.get(id=module_id)
except Module.DoesNotExist:
module = None
now = datetime.datetime.now()
events = Event.objects.filter(module__in=module_id,date__gte=now).order_by('date')
paginator = Paginator(events, 5)
try:
page = int(request.GET.get("page", '1'))
except ValueError:
page = 1
try:
posts = paginator.page(page)
except (InvalidPage, EmptyPage):
posts = paginator.page(paginator.num_pages)
return render_to_response("studies/module.html", {'module': module, 'events': events, 'posts': posts, 'dated': 'dated'}, RequestContext(request))
else:
return HttpResponseRedirect(reverse('home'))
你知道吗网址.py你知道吗
urlpatterns = patterns('',
url(r'^modules/$', 'studies.views.modules', name="modules"),
url(r'^module/(?P<module_id>\d)/upcoming/$', 'studies.views.module_details_upcoming', name="module_details_upcoming"),
url(r'^module/(?P<module_id>\d)/previous/$', 'studies.views.module_details_previous', name="module_details_previous"),
)
模板文件:
{% if modules %}
<p>Below you can find all your modules for this year.</p>
<table class="table table-hover">
<th>Code</th>
<th>Name</th>
<th>Tasks/Events</th>
{% for module in modules %}
<tbody>
<td>{{ module.code }}</td>
<td>{{ module.name }}</td>
<td><a href="{% url "module_details_upcoming" module.id %}">Upcoming</a> / <a href="{% url "module_details_previous" module.id %}">Previous</a></td>
</tbody>
{% endfor %}
</table>
{% else %}
<p>Oops! It seems that there are no modules for {{ course.name }} in our records. Please contact your school office.</p>
{% endif %}
您需要在
url
标记中传递关键字参数module_id
:也可以看到类似的问题:NoReverseMatch with {% url ... %} and keyword args
UPD:你实际上在url中捕获了一个数字。因为for
year 3
module_id
是10
(两位数),所以不能完成反向操作。你知道吗替换:
使用(观察
\d+
而不是\d
):相关问题 更多 >
编程相关推荐