[英]filtering fields of an inlineformset_factory
我有這些模型:
class TourItem(models.Model):
Tour=models.ForeignKey(Tour)
TourItemType=models.ForeignKey(TourItemType)
Transfer=models.ForeignKey(Transfer)
Accommodate=models.ForeignKey(Accommodate)
Visit=models.ForeignKey(Visit)
和:
class Tour(models.Model):
Lang_Choices=(
('fa',ugettext_lazy('Persian')),
('en',ugettext_lazy('English')),
('fr',ugettext_lazy('French')),
)
Lang=models.CharField(max_length=1,choices=Lang_Choices,editable=False)
Name=models.CharField(max_length=100)
Description=models.TextField()
ActionDate=models.DateTimeField(auto_now=True,editable=False)
這個內聯形式:
TourItemFormSet=inlineformset_factory(Tour,TourItem,can_delete=True,extra=4)
容納,TourItemType,轉移和訪問模型有一個名為Lang的字段,當我制作formset時,我在每種形式中為這些模型設置了4個組合框,現在我想用request.LANGUAGE_CODE
過濾這些組合框。我搜索了很多並最終得到了這個代碼:
def get_field_qs(field, **kwargs):
if field.name == 'TourItemType':
field.queryset = TourItemType.objects.filter(Lang__iexact=request.LANGUAGE_CODE)
return field
TourItemFormSet=inlineformset_factory(Tour,TourItem,formfield_callback=get_field_qs,can_delete=True,extra=4)
但現在它顯示沒有字段,我該如何處理?
提前致謝
在您的視圖中嘗試此操作:
TourItemFormSet = inlineformset_factory(Tour,TourItem,can_delete=True,extra=4)
TourItemFormSet.form.base_fields["TourItemType"].queryset = TourItemType.objects.filter(Lang__iexact=request.LANGUAGE_CODE)
# then create an instance of TourItemFormSet and add to template context
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