Hi, I'm right now in the phase of gaining some zope enlightenment. Here we go :-) Problem: From an SQL query I get some info stuff and the filename of a picture. This picture may be inside the /images Folder. Now I want to give a summary of the data with the picture when existing. First solution: (found this one here in the mailinglist)
<dtml-if "_.hasattr(images, image_name)"> # if it exists <dtml-var "_.getattr(images, image_name)"></a> # display it <dtml-else> # otherwise Some other thing to do (I used a text link) </dtml-if>
This works fine with a normal zope folder object. My images reside on the local filesystem and are mounted via the supercool LocalFS product. But... the above code didn't work for me. hasattr always returned 'false' for any file inside the localfs Folder. I came up with the following solution (this works for me): <!--#in "images.objectIds([image_name])"--> picture: <IMG SRC="/images/<!--#var sequence-item-->"> <!--#/in--> (From this point on I began to experiment.) Fine. Now I thought about doing the IMG part in the zope way. Thus I have to use objectValue instead of objectIds... Let's see: <!--#in "images.objectValues([image_name])"--> picture: <!--#var sequence-item--> <!--#/in--> Nope... This will not work with LocalFS. Let's test this one on a normal zope folder: <!--#in "zopeFolderWithImages.objectValues(['someimage.gif'])"--> picture: <!--#var sequence-item--> <!--#/in--> no way. It's not working... This one is working for a normal Zope Folder: <!--#in "zopeFolderWithImages.objectValues(['Image'])"--> picture: <!--#var sequence-item--> <!--#/in--> This will give me all images in the folder... But I only want to test for one picture. Anyway... Let's test the last example with LocalFS ! It's not working. I'm a bit confused. To summarize: - I can not use _.hasattr(folder,'nameofimg.gif') to test for the existence of an image within localFS folder. But it works for normal Zope folders. - folder.objectIds(['Image']) won't return a list of IDs of images within a LocalFS folder. But it does in a normal Folder. - within LocalFS folder.objectIds(['someimage.gif']) will return a list with only 'someimage.gif' within it. But folder.objectValues(['someimage.gif']) will not return a list with the file object. - further folder.objectIds(['someimage.gif']) won't work inside normal Zope folder objects but will work inside LocalFS folders. I would be glad to have some testing method that will work on both types of folder. And easy. And small. And dtml :-) Greetings - Andreas -------------------------------------------------------------------------- i s t i m e l o n g ? o r i s i t w i d e ?