限制在utils.py上的视图-Django

Question

我使用tempalte使用Django创建日历，但是现在我坚持将本日历上的事件的视图限制在创建该事件的用户中。

我没有这个日历的模型，仅用于事件，而日历当前基于我的util.py文件：

utils.pys.py

class Calendar(HTMLCalendar):
    def __init__(self, year=None, month=None):
        self.year = year
        self.month = month
        super(Calendar, self).__init__()

    # formats a day as a td
    # filter events by day
    def formatday(self, day, events):
        contracts_starting_per_day = events.filter(starting_date__day=day)
        contracts_ending_per_day = events.filter(ending_date__day=day)
        contracts_paying_per_day = events.filter(payment_date__day=day)
        d = ''


        for contract in contracts_starting_per_day:
            if contract.company_client:
                client = contract.company_client
            elif contract.person_client:
                client = contract.person_client
            else:
                client = '-'
            d += f"<a href='http://127.0.0.1:8000/contracts/editct/{contract.id}'> <li class='calendar-li starting' title='{contract.contract_name}'> {contract.contract_name} <p class='calendar-p'> {client} </p> </li> </a>"


        if day != 0:
            return f"<td class='calendar-td'><span class='date'>{day}</span><ul class='calendar-ul'> {d} </ul></td>"
        return "<td class='calendar-td'></td>"

    # formats a week as a tr
    def formatweek(self, theweek, events):
        week = ''
        for d, weekday in theweek:
            week += self.formatday(d, events)
        return f"<tr class='calendar-tr'> {week} </tr>"

    # formats a month as a table
    # filter events by year and month
    def formatmonth(self, withyear=True):
        contracts = Contract.objects.filter(starting_date__year=self.year, starting_date__month=self.month)

        cal = f'<table border="0" cellpadding="0" cellspacing="0" class="calendar">\n'
        cal += f'{self.formatmonthname(self.year, self.month, withyear=withyear)}\n'
        cal += f'{self.formatweekheader()}\n'
        for week in self.monthdays2calendar(self.year, self.month):
            cal += f'{self.formatweek(week, contracts)}\n'
        return cal

views.pys.py

class CalendarView(LoginRequiredMixin, generic.ListView):
    model = Contract
    template_name = 'calendar.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)

        # Get the actual month to display the calendar
        d = get_date(self.request.GET.get('month', None))
        agenda = Calendar(d.year, d.month)
        html_agenda = agenda.formatmonth(withyear=True)
        #context['calendar'] = context['calendar'].filter(user=self.request.user)
        context['calendar'] = mark_safe(html_agenda)
        context['prev_month'] = prev_month(d)
        context['next_month'] = next_month(d)
        return context


def get_date(req_day):
    if req_day:
        year, month = (int(x) for x in req_day.split('-'))
        return date(year, month, day=1)
    return datetime.today()


def prev_month(d):
    first = d.replace(day=1)
    prev_month = first - timedelta(days=1)
    month = 'month=' + str(prev_month.year) + '-' + str(prev_month.month)
    return month

def next_month(d):
    days_in_month = calendar.monthrange(d.year, d.month)[1]
    last = d.replace(day=days_in_month)
    next_month = last + timedelta(days=1)
    month = 'month=' + str(next_month.year) + '-' + str(next_month.month)
    return month

我已经尝试过#context ['calendar'] = context ['calendar']。滤波器（user = self.request.user）在我的视图上，但是我去了这个错误：

keyError在/议程/日历'日历'

是否只有在用户记录和创建事件的用户相等的情况下，才有任何选项可以恢复日历上的事件？

我也尝试过：

for contract in contracts_starting_per_day:
    if contract.user == request.user:

在我的日历util上，但是由于此util没有收到任何请求，因此无法使用它。

Answer 1

您正在尝试从上下文中从上下文中检索日历。错误是在此行引起的：

context['calendar'] = context['calendar'].filter(user=self.request.user)

您应该在get_queryset视图方法中为模型定义QuerySet。该问题将在您在context_object_name中设置的变量中的上下文中访问：

class CalendarView(...):
    ...
    context_object_name = 'contracts'
    def get_queryset(self):
        return Contract.objects.filter(user=self.request.user)

然后在模板中：

{% for contract in contracts %}
    {{ contract }}
{% endfor %}