Question

我正在创建一个由ChoiceField和CharField组成的MultiValueField。我现在意识到MultiValueFields与.as_hidden模板标签不兼容，所以我查看了django.forms.widgets.SplitDateTimeWidget和django.forms.widgets.SplitHiddenDateTimeWidget实现以获得指导。

class YesNoDateWidget(forms.MultiWidget):
def __init__(self, attrs=None):
    _widgets = (
        forms.widgets.RadioSelect(attrs=attrs, choices=YESNO_CHOICES),
        forms.widgets.TextInput(attrs=attrs),
    )
    super(YesNoDateWidget, self).__init__(_widgets, attrs)

def decompress(self, value):
    print "Decompress: %s" % value
    if value:
        return [value, value]
    return [None, None]

class YesNoDateHiddenWidget(YesNoDateWidget):
    def __init__(self, attrs=None):
        super(YesNoDateHiddenWidget, self).__init__(attrs)
        for widget in self.widgets:
            widget.input_type = 'hidden'

class YesNoDateField(forms.fields.MultiValueField):
    widget = YesNoDateWidget
    hidden_widget = YesNoDateHiddenWidget

    def __init__(self, *args, **kwargs):
        fields = [
            forms.fields.ChoiceField(choices=YESNO_CHOICES),
            forms.fields.CharField(),
        ]
        super(YesNoDateField, self).__init__(fields, *args, **kwargs)

这几乎可以工作，在模板中隐藏CharField（使用{％for field in form％} {{field.as_hidden}} {％endfor％}），但仍然会渲染ChoiceField。如果我使用标准ChoiceField（widget = RadioSelect）并使用{{field.as_hidden}}，它将呈现为普通字段。

谁能看到我做错了什么？

谢谢， /马丁

Answer 1

我最终没有继承隐藏字段的YesNoDateWidget类，但基本上是复制它，只是将小部件RadioSelect和TextInput切换到HiddenInput。感觉很多非DRY，但它会使轮子旋转。

class YesNoDateHiddenWidget(forms.MultiWidget):
def __init__(self, attrs=None):
    widgets = (
        forms.widgets.HiddenInput(attrs=attrs),
        forms.widgets.HiddenInput(attrs=attrs),
    )
    super(YesNoDateHiddenWidget, self).__init__(widgets, attrs)

def decompress(self, value):
    print "Decompress: %s" % value
    if value:
        return [value, value]
    return [None, None]

MultiWidget中的Django RadioSelect没有隐藏

1 个答案: