我正在尝试修改admin ModelMultipleChoiceField,因此它会动态加载数据。
因为我想动态加载数据,所以在创建表单实例时,ModelMultipleChoiceField的查询集为空,因此在进行表单验证时,django会抱怨选项无效,因为它们在查询集中找不到。
有什么方法吗?
FORM:
class FormName(forms.ModelForm):
dinamic_field = forms.ModelMultipleChoiceField(Entry.objects.none(),widget=
widgets.FilteredSelectMultiple("", False))
class Meta:
model = ModelName
fields = ('dinamic_field',)
class Media:
js = ('jquery.js', 'dinamic_field.js')
查看:
def add(request):
if request.method == 'POST':
form = FormName(request.POST)
if request.is_ajax():
obj = Packages.objects.get(id = form.data['package'])
form.fields['dinamic_field'].queryset = Entry.objects.filter(test__in =obj.all())
return HttpResponse(form['dinamic_field'])
if form.is_valid():
job = form.save()
return HttpResponseRedirect('../../')
else:
form = FormName()
return return render_to_response('/template_name', {'form': 'form'})
答案 0 :(得分:0)
您是否尝试覆盖表单的__init__()
方法并为字段设置queryset
?类似的东西:
class JobForm(forms.ModelForm):
dynamic_field = forms.ModelMultipleChoiceField(Entry.objects.none(),widget=
widgets.FilteredSelectMultiple("", False))
def __init__(self, *args, **kwargs):
super(JobForm, self).__init__(*args, **kwargs)
self.dynamic_field.queryset = Entry.objects.<etc>