On 27 October 2011 23:02, Mark Erbaugh <[email protected]> wrote:
> In the Zope2 Book (documentation), section 27.22.1 mentions special handling
> of the tal:condition operation when ued with the checked or selected
> attributes which makes it easier to pass an initial value to a checkbox,
> radio or select control. This behavior is not mentioned (at least I didn't
> find it) in the Chameleon 2.0 documentation, but it appears to work in my
> Pyramid / Chameleon app.
It's available in 2.0, but not configured by default.
It needs the following attributes set on the template class (or instance):
literal_false = True
boolean_attributes = set(["checked", "selected", ...])
The combination of both gives you the ZPT behavior.
The attributes are documented here:
http://pagetemplates.org/docs/latest/library.html#chameleon.PageTemplate
\malthe
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