ウィジェットで使用ModelFormsしています。ModelMultipleChoiceField2 つの質問があります。
処理オプションのチェックボックス ウィジェットは、データベース内のテーブル
SelectOptionForStateFormから既存の選択をレンダリングします。stateoptionそのテーブルで既存のレコードを探すことをどのように知るのでしょうか? 私のviews.pyでは、テーブルを見ないオブジェクトdiseaseとオブジェクトのみを渡しています。statestateoptionデータベース内のテーブル
SelectOutcomeForOptionFormから [治療結果] チェックボックスも事前に選択されるように、どのようにインスタンス化しますか?stateoptionoutcome
フォーム.py
class SelectOptionForStateForm(forms.ModelForm):
class Meta:
model = State
exclude = ['state', 'relevantdisease']
def __init__(self, *args, **kwargs):
disease=kwargs.pop('disease', None)
super(SelectOptionForStateForm, self).__init__(*args, **kwargs)
self.fields['relevantoption']=forms.ModelMultipleChoiceField(queryset=Option.objects.filter(relevantdisease_id=disease),required=True, widget=forms.CheckboxSelectMultiple)
self.fields['relevantoption'].label="Treatment Options"
class SelectOutcomeForOptionForm(forms.ModelForm):
class Meta:
model = StateOption
exclude = ['partstate', 'partoption']
def __init__(self, *args, **kwargs):
disease=kwargs.pop('disease', None)
super(SelectOutcomeForOptionForm, self).__init__(*args, **kwargs)
self.fields['relevantoutcome']=forms.ModelMultipleChoiceField(queryset=Outcome.objects.filter(relevantdisease_id=disease),required=True, widget=forms.CheckboxSelectMultiple)
self.fields['relevantoutcome'].label="Treatment Outcomes"
ビュー.py
def stateoptionoutcome(request, disease_id, state_id):
state = get_object_or_404(State, pk=state_id)
disease = get_object_or_404(Disease, pk=disease_id)
if request.method == "POST":
optionForm = SelectOptionForStateForm(request.POST, disease=disease, instance=state)
outcomeForm = SelectOutcomeForOptionForm(request.POST, disease=disease, instance=state)
if optionForm.is_valid() and outcomeForm.is_valid():
#Deletes state objects so there are no duplicate options in the database
try:
state_option = StateOption.objects.filter(partstate=state).delete()
except StateOption.DoesNotExist:
state_option = None
#Saves user options to database
for option_id in request.POST.getlist('relevantoption'):
state_option = StateOption.objects.create(partstate=state, partoption_id=int(option_id))
#Deletes stateoption objects found in StateOptionOutcome
try:
state_option_outcome = StateOptionOutcome.objects.filter(stateoption=state_option).delete()
except StateOptionOutcome.DoesNotExist:
state_option_outcome = None
#Saves user outcomes to database
for outcome_id in request.POST.getlist('relevantoutcome'):
state_option_outcome = StateOptionOutcome.objects.create(stateoption=state_option, relevantoutcome_id=int(outcome_id))
return HttpResponseRedirect(reverse('diseasestateoptionlist', kwargs={'disease_id':disease_id, 'state_id':state_id}))
models.py
class State(models.Model):
state = models.CharField(max_length=255)
relevantdisease = models.ForeignKey(Disease)
relevantoption = models.ManyToManyField(Option, through='StateOption')
class StateOption(models.Model):
partstate = models.ForeignKey(State)
partoption = models.ForeignKey(Option)
relevantoutcome = models.ManyToManyField(Outcome, through='StateOptionOutcome')
class StateOptionOutcome(models.Model):
stateoption = models.ForeignKey(StateOption)
relevantoutcome = models.ForeignKey(Outcome)
outcomevalue = models.CharField(max_length=20)