2

requestModelForm の clean フィールドからアクセスできません。リクエスト ユーザーがあまりにも多くのイベントに参加しようとしていないことを確認したい。

私はこの修正を試みました: Django: Accessing request in forms.py clean function

…などなどですが、まだまだ奮闘中です。

私のフォームはこれです：

クラス EventEditForm(forms.ModelForm):

    class Meta:
        model = Event

    def __init__(self, *args, **kwargs):
        self.request = kwargs.pop('request', None)
        super(EventEditForm, self).__init__(*args, **kwargs)


    name = forms.CharField(max_length=1024,
            initial="Give short, descriptive name",
            widget=forms.TextInput(attrs={'onfocus':'if(this.value=="Give short, descriptive name") this.value="";'}))
    location = forms.CharField(max_length=1024,
            initial="Be specific, give online map link",
            widget=forms.TextInput(attrs={'onfocus':'if(this.value=="Be specific, give online map link") this.value="";'}))
    dateTimeOptions = {
            'format': 'dd/mm/yyyy HH:ii P',
            'autoclose': 'true',
            'showMeridian': 'true',
            }
    date = forms.DateTimeField(label="Date and time",widget=DateTimeWidget(options=dateTimeOptions,
            attrs={'id':"date-time"}))
    host_act = forms.CharField(max_length=1024,
            initial="What act will you bring, if any?", required=False,
            widget=forms.TextInput(attrs={'onfocus':'if(this.value=="What act will you bring, if any?") this.value="";'}))
    description = forms.CharField(required=False, max_length=10240,
            initial="Give some details. Any activities prepared?",
            widget=forms.Textarea(attrs={'onfocus':'if(this.value=="Give some details. Any activities prepared?") this.value="";'}))


    def clean_location(self):
        cd = self.cleaned_data
        location = cd.get('location')
        if location == "Be specific, give online map link" or '':
            raise forms.ValidationError("Please enter a location")
        return location

    def clean_name(self):
        cd = self.cleaned_data
        name = cd.get('name')
        other_names = Event.objects.proposed(datetime.now)
        if name == "Give short, descriptive name" or '':
            raise forms.ValidationError("Please enter a name")
        return name

    def clean(self):
        """
        Check that there is not another event on at
        the same time and place. Then check that user has not committed
        to another event on the same date, even somewhere else.
        """
        cleaned_data = super(EventEditForm, self).clean()
        event_start_estimate = cleaned_data.get("date") - timedelta(hours=3)
        event_end_estimate = event_start_estimate + timedelta(hours=7)
        location = cleaned_data.get("location")
        events_on_date = Event.objects.\
            filter(date__range=[event_start_estimate,event_end_estimate])
        events_at_location_on_date = events_on_date.filter(location=location)
        print events_at_location_on_date
        # Check event clash is not this event clashing with itself
        try:
            events_with_same_date_and_location_id = events_at_location_on_date[0].id
        except:
            pass
        this_event_id = self.instance.id
        try:
            if events_with_same_date_and_location_id == this_event_id:
                events_at_location_on_date = False
        except:
            pass
        if events_at_location_on_date:
            raise forms.ValidationError("There is already an event on \
                this date. Please join this event or pick another \
                date and time. Note: You may have accidentally failed to \
                change the date with the picker.")
        print self.request
        user = self.request
        print user
        events_on_date_user_has_commit = events_on_date.filter(host__exact=user)
        if events_on_date_user_has_commit:
            raise forms.ValidationError("You are already committed to an event\
                on this date.")
        return cleaned_data

私の見解は次のとおりです。

class EventEditView(UpdateView):
    template_name = "edit_event.html"
    model=Event
    pk_url_kwarg='event_id'
    form_class = EventEditForm
4

1 に答える 1

3

フォームでリクエストにアクセスすることはできません。何らかの方法でビューから渡す必要があります。FormView ジェネリック ビューを使用している場合は、リンクした回答が最適な方法です。リクエストが送信されることをすでに期待しているようです：

self.request = kwargs.pop('request', None)

関数ベースのビュー、または非 FormView クラス ベースのビューを使用している場合は、フォームを初期化するときにキーワード引数としてリクエストを渡すだけです。例えば：

form = EventEditForm(request.POST, request=request) # or self.request for a class based view
于 2013-09-24T23:19:29.267 に答える