django RadioSelect小部件列表ID [英] django RadioSelect widget list id

问题描述

我目前要在CSS样式中设置一个窗体类上有一个RadioSelect小部件.但是，呈现的窗口小部件包含在 ul 中，并且列表没有ID.

I currently have a RadioSelect widget on one of my form classes that I want to style with css. However the rendered widget is contained in an ul and the list has no id.

将ID添加到呈现列表的最简单方法是什么?

What is the easiest way to add an id to the rendered list?

推荐答案

子类 RadioFieldRenderer 并覆盖 render 方法.

RadioFieldRenderer 是RadioSelect用来自定义无线电窗口小部件的对象.

RadioFieldRenderer is an object used by RadioSelect to enable customization of radio widgets.

将类添加到 ul 元素的示例实现:

Example implementation that adds class to ul element:

from django.utils.encoding import force_unicode
from django.utils.safestring import mark_safe

class MyRadioFieldRenderer(forms.widgets.RadioFieldRenderer):

    def render(self):
        """Outputs a <ul> for this set of radio fields."""
        return mark_safe(u'<ul class="inputs-list">\n%s\n</ul>' % 
                u'\n'.join([u'<li>%s</li>'
                % force_unicode(w) for w in self]))

用法:

field = forms.ChoiceField(label=_('field'),
        choices=FIELD_CHOICES,
        widget=forms.widgets.RadioSelect(
            renderer=MyRadioFieldRenderer
            )
        )

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