random object with properties
I'm trying to find/write a method that will choose a random image from a folder (easy, using the random how-to) But I also want to display the caption for the image, which is a property of that image. This method: <dtml-var expr="_.whrandom.choice(objectValues('Photo'))"> <dtml-if caption><dtml-var caption></dtml-if> presents me with a random photo, but no caption. At one point, I had it pulling out a random photo and a random caption, but I need the associated caption. What am I missing here? Kevin -- ----------------------------------------------- Kevin Worth <kworth@engin.umich.edu> Computer Systems Specialist II and Adjunct Lecturer Department of Materials Science and Engineering University of Michigan
You have to actually get the image to display its caption (untested) <dtml-with expr="_.whrandom.choice(objectValues('Photo'))"> <dtml-var sequence-item> <dtml-if caption><dtml-var caption></dtml-if> </dtml-var> -- Andy McKay, Developer. ActiveState. ----- Original Message ----- From: "Kevin Worth" <kworth@engin.umich.edu> To: <zope@zope.org> Sent: Tuesday, November 21, 2000 11:57 AM Subject: [Zope] random object with properties
I'm trying to find/write a method that will choose a random image from a folder (easy, using the random how-to) But I also want to display the caption for the image, which is a property of that image.
This method:
<dtml-var expr="_.whrandom.choice(objectValues('Photo'))"> <dtml-if caption><dtml-var caption></dtml-if>
presents me with a random photo, but no caption. At one point, I had it pulling out a random photo and a random caption, but I need the associated caption.
What am I missing here?
Kevin -- ----------------------------------------------- Kevin Worth <kworth@engin.umich.edu> Computer Systems Specialist II and Adjunct Lecturer Department of Materials Science and Engineering University of Michigan
_______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Duh what am I saying sequence-item... yep you need a let as per Morten. Too many dtml-in's... -- Andy McKay, Developer. ActiveState. ----- Original Message ----- From: "Andy McKay" <andym@ActiveState.com> To: <zope@zope.org>; "Kevin Worth" <kworth@engin.umich.edu> Sent: Tuesday, November 21, 2000 12:14 PM Subject: Re: [Zope] random object with properties
You have to actually get the image to display its caption (untested)
<dtml-with expr="_.whrandom.choice(objectValues('Photo'))"> <dtml-var sequence-item> <dtml-if caption><dtml-var caption></dtml-if> </dtml-var>
-- Andy McKay, Developer. ActiveState. ----- Original Message ----- From: "Kevin Worth" <kworth@engin.umich.edu> To: <zope@zope.org> Sent: Tuesday, November 21, 2000 11:57 AM Subject: [Zope] random object with properties
I'm trying to find/write a method that will choose a random image from a folder (easy, using the random how-to) But I also want to display the caption for the image, which is a property of that image.
This method:
<dtml-var expr="_.whrandom.choice(objectValues('Photo'))"> <dtml-if caption><dtml-var caption></dtml-if>
presents me with a random photo, but no caption. At one point, I had it pulling out a random photo and a random caption, but I need the associated caption.
What am I missing here?
Kevin -- ----------------------------------------------- Kevin Worth <kworth@engin.umich.edu> Computer Systems Specialist II and Adjunct Lecturer Department of Materials Science and Engineering University of Michigan
_______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
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[Kevin Worth] | <dtml-var expr="_.whrandom.choice(objectValues('Photo'))"> | <dtml-if caption><dtml-var caption></dtml-if> [,..] | What am I missing here? Maybe this will work: <dtml-let random_image="_.whrandom.choice(objectValues('Photo'))"> <dtml-var random_image> <dtml-if caption><dtml-var caption></dtml-if> </dtml-let> HTH. -Morten
Hmm.. How about something like: <dtml-let random_image="_.whrandom.choice(objectValues('Photo'))"> <dtml-var random_image> <dtml-if "_.hasattr(random_image,'caption')"><dtml-var "random_image.caption"></dtml-if> </dtml-let> -steve
participants (4)
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Andy McKay -
Kevin Worth -
morten＠esol.no -
Steve Spicklemire