Can anyone provide some insight regarding the problem detailed below? Basically, I would like to add file attachment support to the ZDiscussion product. I have managed to do that successfully, however I cannot seem to create a URL to access the file such that it could be wrapped inside an HREF tag. Any help would be greatly appreciated. -Brian
-----Original Message----- From: Pearson, Brian Edward (GEA, 056278) Sent: Thursday, March 16, 2000 5:20 PM To: 'zope-dev@zope.org' Subject: ZDiscussions
All,
Have been trying to add File Attachment functionality to the ZDiscussions Product. Thus far, I have modded the ZDiscussions.py file, specifically the ZDItem class's __init__ method, to accept one extra parameter called file. The corresponding DTML-Method (postForm) within the ZDiscussion object has been modded to include a FILE input field.
To facilitate the file handling, I am using the Squishfile.py module. All is working well, and via a new def attachment(self) method that was added to the ZDiscussion.py module, I am able to return the file to the browser.
Herein lies the problem. How can I reference the file via an HREF? With the following DTML:
<dtml-if attachment> <b>Hello there</B> <tr><th bgcolor="#d0d0f0" align=left>Attachment:</th><td> <dtml-in attachment> <A HREF="./<dtml-var file_name url_quote>"> <IMG SRC="<dtml-var SCRIPT_NAME >/<dtml-var icon >" HEIGHT=16 WIDTH=16 BORDER="0" ALT="Click to download attachment"></A> <A HREF="./<dtml-var file_name url_quote>"> <dtml-var file_name></A> <dtml-var file_kbytes>KB (<dtml-var file_bytes> bytes)<BR> </dtml-in attachment></td> </dtml-if>
This of course references the file object as absolute_url/ZDItem_id/file_name. This same reference url is used in the Squishdot product when displaying a link the user may click on to download the file. However, in my implementation it is not referencing the file.
The only way to reference the file is to use <dtml-var attachment>, which means that the file will be streamed to the user as soon as they click on the message thread, obviously not the way I would like to handle the situation.
Do I need to include the file object as a property of the message? I thought by including the file object during the creation (__init__) method of ZDItem this would be handled.
Any/all assistance would be greatly appreciated. Also, if I am crazy for doing this please let me know. Perhaps a new ZDiscussion already exists that supports attachments?
Thanks again, -Brian