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