Re: [Zope] Question about accessing properties of images
Hi Kevin, Kevin Carlson writes:
Here you go -- hope this helps. I'm running Zope 2.5 if that helps any. A little explanation about the structure of the site may help, too.
The pic object I have sent you is a thumbnail image of a much larger image. The larger images reside in a subdirectory called "largepics" and have the same names. When a user clicks on one of the hyperlinks that is associated with the pic object, I send the id of the pic object to a DTML method called "photo_html". (All of this occurs in the folder containing the thumbnails). This method displays the larger picture from the subdirectory and pulls the description from thumbnail. I put the site together this way so that I could have an admin page to be able to type descriptions for multiple thumbnail pictures at one time.
I also tried adding the description to the larger image object but had the same type of results.
Thanks for your interest in looking at this. I anxiously await your reply! I imported your image, created the following DTML Method
<dtml-var standard_html_header> <h2><dtml-var title_or_id> <dtml-var document_title></h2> <p> <dtml-var expr="_.getitem('01').desc"> </p> <dtml-var standard_html_footer> and viewed it. Of course, I saw the description. I can see 2 potential problems causing your failure: 1. Your image's name is valid in URL's and DTML but not in Python expressions (where you are inside "..."). Inside Python, "01" is not an object but the integer 1 (the leading "0" is intepreted as "octal number"). Integers do not have attributes. The "_.getitem" above accepts arbitrary names and looks them up transparently in the DTML namespace. (read the "Name lookup section" in <http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html> when your want to learn more about namespaces and lookup). 2. Where you use "pic.desc", there may be "dtml-with" active (to facilitate access to the "largspics"). In this case, your "pic" may be the large image, not the thumbnail. In this case, you would probably use a nested "dtml-with" to access your thumbnail. I expect, your problem is 1. Dieter
Dieter, Thank you very much for your reply! I renamed the images and it works great! Kevin ----- Original Message ----- From: "Dieter Maurer" <dieter@handshake.de> To: "Kevin Carlson" <kevinc@carlson.homeip.net> Cc: <zope@zope.org> Sent: Saturday, February 23, 2002 6:15 AM Subject: Re: [Zope] Question about accessing properties of images
Hi Kevin,
Kevin Carlson writes:
Here you go -- hope this helps. I'm running Zope 2.5 if that helps any. A little explanation about the structure of the site may help, too.
The pic object I have sent you is a thumbnail image of a much larger image. The larger images reside in a subdirectory called "largepics" and have the same names. When a user clicks on one of the hyperlinks that is associated with the pic object, I send the id of the pic object to a DTML method called "photo_html". (All of this occurs in the folder containing the thumbnails). This method displays the larger picture from the subdirectory and pulls the description from thumbnail. I put the site together this way so that I could have an admin page to be able to type descriptions for multiple thumbnail pictures at one time.
I also tried adding the description to the larger image object but had the same type of results.
Thanks for your interest in looking at this. I anxiously await your reply! I imported your image, created the following DTML Method
<dtml-var standard_html_header> <h2><dtml-var title_or_id> <dtml-var document_title></h2> <p> <dtml-var expr="_.getitem('01').desc"> </p> <dtml-var standard_html_footer>
and viewed it. Of course, I saw the description.
I can see 2 potential problems causing your failure:
1. Your image's name is valid in URL's and DTML but not in Python expressions (where you are inside "..."). Inside Python, "01" is not an object but the integer 1 (the leading "0" is intepreted as "octal number"). Integers do not have attributes.
The "_.getitem" above accepts arbitrary names and looks them up transparently in the DTML namespace. (read the "Name lookup section" in
<http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html>
when your want to learn more about namespaces and lookup).
2. Where you use "pic.desc", there may be "dtml-with" active (to facilitate access to the "largspics"). In this case, your "pic" may be the large image, not the thumbnail.
In this case, you would probably use a nested "dtml-with" to access your thumbnail.
I expect, your problem is 1.
Dieter
participants (2)
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Dieter Maurer -
Kevin Carlson