我会推荐一种自定义的Widget方法，HTML5允许你使用带有下拉列表的自由文本输入，该下拉列表可以用作“一键通”或“另一写”类型的字段，这就是我的方法：
fields.py
from django import formsclass ListTextWidget(forms.TextInput): def __init__(self, data_list, name, *args, **kwargs): super(ListTextWidget, self).__init__(*args, **kwargs) self._name = name self._list = data_list self.attrs.update({'list':'list__%s' % self._name}) def render(self, name, value, attrs=None, renderer=None): text_html = super(ListTextWidget, self).render(name, value, attrs=attrs) data_list = '<datalist id="list__%s">' % self._name for item in self._list: data_list += '<option value="%s">' % item data_list += '</datalist>' return (text_html + data_list)forms.py
from django import formsfrom myapp.fields import ListTextWidgetclass FormForm(forms.Form): char_field_with_list = forms.CharField(required=True) def __init__(self, *args, **kwargs): _country_list = kwargs.pop('data_list', None) super(FormForm, self).__init__(*args, **kwargs) # the "name" parameter will allow you to use the same widget more than once in the same # form, not setting this parameter differently will cuse all inputs display the # same list. self.fields['char_field_with_list'].widget = ListTextWidget(data_list=_country_list, name='country-list')views.py
from myapp.forms import FormFormdef country_form(request): # instead of hardcoding a list you could make a query of a model, as long as # it has a __str__() method you should be able to display it. country_list = ('Mexico', 'USA', 'China', 'France') form = FormForm(data_list=country_list) return render(request, 'my_app/country-form.html', { 'form': form })
