David wrote:
[% product.images.first.filename %]
Hi David,
Is your product.images returning a 'naked' list, like this:
return @images;
If so, you should consider changing that to return a reference to the list, if
possible:
return [EMAIL PROTECTED];
TT will try and Do The Right Thing in the first case, but it has no way to
know what the Right Thing is if you only return one item. So it leaves it as
a single item. If you return a list ref then you always have a list ref, even
if it only contains one item.
Until the recent upgrade this did work for all
instances, but now, if we have a product that only has one image, the
template is treating it as a scalar object, so 'first' returns an empty
object and no value gets displayed in the template.
What data type are the images? Are they objects, rather than, say, hash refs?
And if they are objects, are they blessed hashes or something else?
What *should* happen is that a single item is treated as a list and the .first
vmethod is called.
I suspect the problem may have been introduced with a patch to add the full
range of 'fallback' vmethods for objects:
#------------------------------------------------------------------------
# Version 2.14a - 2nd February 2006 ## DEVELOPER RELEASE ##
#------------------------------------------------------------------------
Stash
-----
* Activated a patch in Template::Stash from Stephen Howard which adds
code for the full set of fallbacks for dot ops called against
objects which don't implement the specific method. For example
[% hashobj.vmethod %] [% listobj.2 %] and [% listobj.vmethod %] now
all work with the Perl Template::Stash. Added code to the XS Stash
to do the same and updated tests.
It's the only thing I'm aware of that might have affected it.
Hmmm... I just noticed a comment in the section for the as-yet unreleased v2.20:
#------------------------------------------------------------------------
# Version 2.20 -
#------------------------------------------------------------------------
* Applied a patch to Template::Stash from Jess Robinson which allows you
to call a list method on a single object and have it automatically
upgraded to a single item list. Changed the XS Stash to do the same.
http://tt2.org/pipermail/templates/2006-November/009115.html
Ah yes, I think this is what you want. Here's the patch:
http://template-toolkit.org/svnweb/Template2/revision?rev=1088
And this is the altogether more-gnarly patch I made to do the same thing for
the XS Stash:
http://template-toolkit.org/svnweb/Template2/revision?rev=1090
Ah, OK, now I see why I'm confused. I'm looking at the SVN version of the
Stash code which has been updated. That's why it looks like it *should* work
from where I'm standing (and does, for me at least :-) )
So the first step would be to check it out with the latest version from
subversion.
http://tt2.org/download/index.html#svn
If that works OK then the problem's fixed and I'll push 2.20 out the door RSN.
If that doesn't work, then let me know a bit more about what kind of data
structures your images are and we'll try and find out what's going wrong.
Cheers
A
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