验证时或验证后填充django select
我有一个Django表单，其中有一个下拉列表，该下拉列表使用ajax动态填充。 form类如下所示：验证时或验证后填充django select,django,django-forms,Django,Django Forms,我有一个Django表单，其中有一个下拉列表，该下拉列表使用ajax动态填充。 form类如下所示： class SightingForm(ModelForm): ajax_bird = forms.CharField(required=True, label="Bird", widget=forms.Select(attrs={'class': 'longdropdown chosenBirds', 'data-placeholder': 'Select a Bird'}, choices=
class SightingForm(ModelForm):
ajax_bird = forms.CharField(required=True, label="Bird", widget=forms.Select(attrs={'class': 'longdropdown chosenBirds', 'data-placeholder': 'Select a Bird'}, choices=DEFAULT_BIRDS) )
new_photo = forms.ImageField(required=False, label="Photo")
class Meta:
model = Sighting
fields = ('ajax_bird','count',)
def clean_ajax_bird(self):
ajax_bird = self.cleaned_data['ajax_bird']
abi = 0
try:
abi = int(ajax_bird)
bird = Bird.get_bird(abi)
if bird is None:
raise Exception
except Exception as ex:
raise forms.ValidationError("Please select a bird.")
return ajax_bird
def clean(self):
super(forms.ModelForm, self).clean()
try:
ab = self.cleaned_data['ajax_bird']
if int(ab) > 0:
bird = Bird.get_bird(int(ab))
self.ajax_bird.widget = forms.Select(attrs={'class': 'longdropdown chosenBirds', 'data-placeholder': 'Select a Bird'}, choices=((str(bird.id), str(bird.common_name),),))
return self.cleaned_data
except:
"""fail silently"""