从应用程序中获取特定美国的v值

Question

我有一个日历应用程序，它有一个用于title、description、start_time、end_time、choices字段的Event类。我添加了带有两个选项的choices字段

   c =[("1", "経理部"), ("2", "管理部")]

我还使用这个类向User模型添加了一个a列

   class Employee(models.Model):
      user = models.OneToOneField(User, on_delete=models.CASCADE)
      department = models.CharField(max_length=100)

我可以用这个代码访问这个部门

   >>> from django.contrib.auth.models import User
   >>> u = User.objects.get(username='marcel4')
   >>> d = u.employee.department
   >>> print(d)
   >>> 経理部

我只想在日历应用程序中用'経理部' 选择并只能在department设置为経理部 (同一个）我应该在哪里进行更改(比如if左右）

这是我的密码

日历中的模型

class Event(models.Model):
    c =[("1", "経理部"), ("2", "管理部")]

    title = models.CharField(max_length=100)
    description = models.TextField()
    start_time = models.DateTimeField(default='2019-06-18T16:00')
    end_time = models.DateTimeField(default='2019-06-18T17:00')
    choices = models.CharField(max_length=1, choices=c)

    @property
    def get_html_url(self):
        url = reverse('cal:event_edit', args=(self.id,))
        return f'<a href="{url}"> {self.title} </a>'

日历中的视图

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

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        d = get_date(self.request.GET.get('month', None))
        cal = Calendar(d.year, d.month)
        html_cal = cal.formatmonth(withyear=True)
        context['calendar'] = mark_safe(html_cal)
        context['prev_month'] = prev_month(d)
        context['next_month'] = next_month(d)
        return context

def get_date(req_month):
    if req_month:
        year, month = (int(x) for x in req_month.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

def event(request, event_id=None):
    instance = Event()
    if event_id:
        instance = get_object_or_404(Event, pk=event_id)
    else:
        instance = Event()

    form = EventForm(request.POST or None, instance=instance)
    if request.POST and form.is_valid():
        form.save()
        return HttpResponseRedirect(reverse('cal:calendar'))
    return render(request, 'cal/event.html', {'form': form})

日历中的utils

class Calendar(HTMLCalendar):
    weekday = (u'月', u'火', u'水', u'木', u'金', u'<a style="color:#a4d2ff;">土</a>', u'<a style="color:#ff9999;">日</a>')
    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):
        events_per_day = events.filter(start_time__day=day)
        d = ''
        for event in events_per_day:
            d += f'<li> {event.get_html_url} </li>'

        if day != 0:
            return f"<td style='color:#4b4b4b;'><span class='date'>{day}</span><ul> {d} </ul></td>"
        return '<td style="background-color:#bababa;";></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> {week} </tr>'

    # formats a month as a table
    # filter events by year and month
    def formatmonth(self, withyear=True):
        events = Event.objects.filter(start_time__year=self.year, start_time__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'
        if "January" in cal:
            cal = cal.replace('January', '1月')
        if "February" in cal:
            cal = cal.replace('February', '2月')
        if "March" in cal:
            cal = cal.replace('March', '3月')
        if "April" in cal:
            cal = cal.replace('April', '4月')
        if "May" in cal:
            cal = cal.replace('May', '5月')
        if "June" in cal:
            cal = cal.replace('June', '6月')
        if "July" in cal:
            cal = cal.replace('July', '7月')
        if "August" in cal:
            cal = cal.replace('August', '8月')
        if "September" in cal:
            cal = cal.replace('September', '9月')
        if "October" in cal:
            cal = cal.replace('October', '10月')
        if "November" in cal:
            cal = cal.replace('November', '11月')
        if "December" in cal:
            cal = cal.replace('December', '12月')
        cal += f'{self.formatweekheader()}\n'
        for week in self.monthdays2calendar(self.year, self.month):
            cal += f'{self.formatweek(week, events)}\n'
        return cal

    def formatweekday(self, theday):
        return u'<th>%s</th>' % self.weekday[theday]

日历中的表格

class EventForm(ModelForm):
  class Meta:
    model = Event
    # datetime-local is a HTML5 input type, format to make date time show on fields
    widgets = {
      'start_time': DateInput(attrs={'type': 'datetime-local'}, format='%Y-%m-%dT%H:%M'),
      'end_time': DateInput(attrs={'type': 'datetime-local'}, format='%Y-%m-%dT%H:%M'),
    }
    fields = '__all__'

  def __init__(self, *args, **kwargs):
    super(EventForm, self).__init__(*args, **kwargs)
    # input_formats parses HTML5 datetime-local input to datetime field
    self.fields['start_time'].input_formats = ('%Y-%m-%dT%H:%M',)
    self.fields['end_time'].input_formats = ('%Y-%m-%dT%H:%M',)
    self.fields['title'].label = "タイトル"
    self.fields['description'].label = "内容"
    self.fields['start_time'].label = "エベントの開始時間"
    self.fields['end_time'].label = "エベントの終了時間"
    self.fields['choices'].label = "Choise"
    instance = getattr(self, 'instance', None)
    if instance and instance.pk:
        self.fields['title'].widget.attrs['readonly'] = True
        self.fields['title'].label = "タイトル"
        self.fields['description'].widget.attrs['readonly'] = True
        self.fields['description'].label = "内容"
        self.fields['start_time'].widget.attrs['readonly'] = True
        self.fields['start_time'].label = "エベントの開始時間"
        self.fields['end_time'].widget.attrs['readonly'] = True
        self.fields['end_time'].label = "エベントの終了時間"