Jan-Wijbrand Kolman wrote:
> I have a interface defined for some content type, say IFoo. IFoo defines one
> schema field:
>
> _filetypes = SimpleVocabulary.fromValues(('fropple', 'frepple', 'froople'))
>
> class IFoo(Interface):
>
> filetypes = Set(
> title=u'',
> required=False,
> value_type=Choice(vocabulary=_filetypes),
> )
>
> By default, the edit widget that is used for this field, is a
> zope.app.form.browser.MultiSelectSetWidget, which will render a multiple="multiple">... element.
>
> Now I'd like to use multiple checkboxes instead, since the number of choices
> for
> this field will never exceed 3 or 4 anyway. I thought to accomplish this by
> configuring the MultiCheckBoxWidget for this, in the addform registration for
> the Foo content type:
>
>name="add_foo"
> label="Add Foo"
> schema=".interfaces.IFoo"
> fields="filetypes"
> content_factory=".foo.Foo"
> template="foo.pt"
> permission="zope.Public"
> >
>field="filetypes"
> class="zope.app.form.browser.itemswidgets.MultiCheckBoxWidget"
> />
>
>
> This however doesn't work and I get the following traceback (pasted the last
> couple of lines):
>
> File "...zope31/src/zope/app/form/browser/add.py", line 47, in _setUpWidgets
> setUpWidgets(self, self.schema, IInputWidget, names=self.fieldNames)
> File "...zope31/src/zope/app/form/utility.py", line 153, in setUpWidgets
> context=context)
> File "...zope31/src/zope/app/form/utility.py", line 101, in setUpWidget
> widget = widget(field.bind(context), view.request)
> File "...zope31/src/zope/app/form/__init__.py", line 97, in __call__
> instance = self._widget_factory(*args)
> TypeError: __init__() takes exactly 4 arguments (3 given)
>
> Now, I do indeed see the __init__ for the MultiCheckboxWidget class (well, one
> of its baseclasses actually) expects a vocabulary argument. How can I make
> sure
> this widget gets all the info it needs? Maybe I just don't see the obvious,
> but
> can anyone provide some hint in the right direction?
Answering myself. I have a workaround:
In mywidgets.py:
from zope.app.form.browser import MultiCheckBoxWidget as MultiCheckBoxWidget_
def MultiCheckBoxWidget(field, request):
vocabulary = field.value_type.vocabulary
return MultiCheckBoxWidget_(field, vocabulary, request)
In the configure.zcml:
Probably there're better ways to do this...?
kind regards,
jw
--
Jan-Wijbrand Kolman
[EMAIL PROTECTED]
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