Django的cleaned_data KeyError異常

Question

在我的Django應用程序，我有三種形式：在view.py

class RoomsForm(forms.Form): 
     rooms = forms.IntegerField(min_value=1) 

class TouristsForm(forms.Form): 
     adult = forms.IntegerField(label=(u'Adults'), min_value=1, initial=1, widget = forms.HiddenInput) 
     children = forms.IntegerField(label=(u'Children'), min_value=1, required=False, widget = forms.HiddenInput) 

class ChildrenAgeForm(forms.Form): 
     children_age = forms.IntegerField(min_value=2, max_value=10, required=False, widget = forms.HiddenInput) 

我試圖清理數據：

def RoomsForm(request): 
     TouristsFormSet = formset_factory(TouristsForm) 
     ChildrenAgeFormSet = formset_factory(ChildrenAgeForm) 
     if request.method == 'POST': 
       rooms_form = RoomsForm(request.POST, prefix='rooms_form') 
       tourists_formset = TouristsFormSet(request.POST, prefix='tourists') 
       childrenage_formset = ChildrenAgeFormSet(request.POST, prefix='childrenage') 
       if rooms_form.is_valid() and tourists_formset.is_valid() or childrenage_formset.is_valid(): 
         rooms = rooms_form.cleaned_data['rooms'] 

         for i in range(0, tourists_formset.total_form_count()): 
           tourists_form = tourists_formset.forms[i] 
           print tourists_form.cleaned_data 

但它總是上升的錯誤KeyError異常在/間/ 「房間」。 有人可以幫我嗎？

Answer 1

在這一行中，您使用的是or而不是and，因此不保證rooms_form有效。

if rooms_form.is_valid() and tourists_formset.is_valid() or childrenage_formset.is_valid(): 

當rooms_form是無效的，room不rooms_form.cleaned_data，讓您得到KeyError。