将上下文从一个视图传递到另一个视图

Question

我试图在我的应用程序中将 URL 参数传递给另一个 view。我目前有一个函数(EntryListView) 可以识别您select 的月份，然后只显示该月份的内容。但是，我希望月份也显示在 detail URL 中。这将使 "go-back" 按钮能够导航回当月的页面，而不是出错或导航回登录页面。

urls.py 原样：

url(r'entry/list/(?P<month>\w+)$', views.EntryListView.as_view(), name='entry-list'),

url(r'entry/detail/(?P<pk>[0-9]+)/$', views.DetailView.as_view(), name='detail'),

views.py

class DetailView(generic.DetailView):
    model = Entry
    template_name = 'argent/detail.html'

class EntryListView(generic.ListView):
    template_name = 'argent/index_list.html'
    queryset = Entry.objects.all()

    def get_context_data(self, **kwargs):
        month = self.kwargs.get('month')
        ctx = super(EntryListView, self).get_context_data(**kwargs)

        # January
        if month == 'January':
            ctx['January17_qs'] = Entry.objects.filter(date__range=('2017-1-1', '2017-1-31'))

        # February17
        elif month == 'February':
        ctx['February17_qs'] = Entry.objects.filter(date__range=('2017-2-1', '2017-2-28'))

        # March
        elif month == 'March':
        ctx['March17_qs'] = Entry.objects.filter(date__range=('2017-3-1', '2017-3-31'))

        return ctx

模板

<a href="{% url 'argent:entry-list' %}">
                        <button type="button" class="btn btn-primary">Go Back
                    </button>
            </a>

我目前在使用 {% url 'argent:entry-list' %} 时遇到此错误：

Reverse for 'entry-list' with arguments '()' and keyword arguments '{}' not found. 1 pattern(s) tried: ['tracker/entry/list/(?P<month>\w+)$']

在此先感谢您的帮助！

Answer 1

您可以将详细信息的月份作为 kwarg 传递给 url 模板标签。这样的东西应该可以工作。

class DetailView(generic.DetailView):
    model = Entry
    template_name = 'argent/detail.html'

    def get_context_data(self, **kwargs):
        ctx = super(DetailView, self).get_context_data(**kwargs)
        ctx['current_month'] = self.get_object().date.strftime("%B")
        return ctx

template.html

<a href="{% url 'argent:entry-list' current_month %}">
     <button type="button" class="btn btn-primary">Go Back</button>
</a>

将上下文从一个视图传递到另一个视图

Passing context from one view to the other

django

django-urls

django-views

python-3.x