我正在尝试修改admin ModelMultipleChoiceField,以便它确实动态加载数据。

由于我想动态加载数据,因此在创建表单实例时ModelMultipleChoiceField的查询集为空,因此,在进行表单验证时,django抱怨选择无效,因为这些选择在查询集中找不到。

有没有办法解决 ?

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')


视图:

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'})

最佳答案

您是否尝试覆盖表单的__init__()方法并为该字段设置queryset?就像是:

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>

关于django - Django动态表单ValidationErorr,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/3606989/

10-12 12:39
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