Question

即时通讯使用MonthArchiveView并使用网址发送上个月的年份和日期。

然而，当我点击它时，我得到一个带有以下内容的404：

Page not found (404)
Request Method: GET
Request URL:    http://it.service.com/maintenance/previous/2016/04/
Raised by:  maintenance.views.EventMonthArchiveView
No Planned IT Maintenance available

我不知道为什么它没有显示空页而不是这个？我不应该得到空模板而不是这个吗？

我还想知道如果用户再次点击上一个链接，并且再次（每次用户点击上一次他们获得上个月）时，如何从网址中扣除当前月/年，减去1个月p>

views.py

from django.views.generic.list import ListView
from django.shortcuts import get_object_or_404, render, render_to_response
from django.http import HttpResponse
from datetime import date, datetime, timedelta, time

from django.views.generic.dates import MonthArchiveView

from .models import Maintenance
from .models import MaintenanceType
from .models import ServiceType

# Create your views here.
def index(request):
    today = date.today()
    ObjMaintenance = Maintenance.objects.filter(StartTime__gt=today)

    return render(request, 'maintenance/index.html', {
        'Maintenance': ObjMaintenance,
    })

def thirtydays(request):
    today = date.today()
    previous_month = (today.replace(day=1) - timedelta(1)).replace(day=1)
    ObjMaintenance = Maintenance.objects.filter(StartTime__gt=today-timedelta(days=30))

    return render(request, 'maintenance/previous.html', {
        'Maintenance': ObjMaintenance,
        'previous_month': previous_month,
        'Title': 'Maintence in the Last 30 Days',
    })

def previous(request, year, month):
    previousMnths = datetime
    ObjMaintenance = Maintenance.objects.filter(StartTime__gt=today-timedelta(days=30))

    strPrevious = 'Maintence for the month %s' % (previous_month)
    return render(request, 'maintenance/previous.html', {
        'Maintenance': ObjMaintenance,
        'previous_month': previous_month,
        'Title': strPrevious,
    })

def upcoming(request):
    today = date.today()
    ObjMaintenance = Maintenance.objects.filter(StartTime__gt=today+timedelta(days=30))

    return render(request, 'maintenance/index.html', {'Maintenance': ObjMaintenance,})      

class EventMonthArchiveView(MonthArchiveView):
    template_name = "maintenance/previous.html"
    queryset = Maintenance.objects.all()
    date_field = "StartTime"
    allow_future = False

urls.py

app_name = 'maintenance'
urlpatterns = [
    url(r'^$', views.index, name='index'),
    url(r'^thirtydays/$', views.thirtydays,  name="thirtydays"),
    url(r'^previous/(?P<year>[0-9]{4})/(?P<month>[0-9]+)/$',
        EventMonthArchiveView.as_view(month_format='%m'), 
        name="previous"),
    url(r'^upcoming$', views.upcoming, name='upcoming'),
]

模板网址

<a href="{% url 'maintenance:previous' previous_month|date:'Y' previous_month|date:'m' %}"><< Previous Maintenance</a>

Answer 1

要在没有活动时显示空列表而不是404，请为您的月份归档视图设置allow_empty至True。

class EventMonthArchiveView(MonthArchiveView):
    template_name = "maintenance/previous.html"
    queryset = Maintenance.objects.all()
    date_field = "StartTime"
    allow_future = False   
    allow_empty = True

django - eventmonthview 404而不是空模板并获得前一个月

1 个答案: