attachment link on WikiStart page

[Shun-ichi Goto <gotoh@…>]

When I accessing WikiStart page without explicit wiki pagename like:
​http://trac.my.local.net/trac or ​http://trac.my.local.net/trac/wiki,
the rendering of attachment link for current page (like [attachment:file text])
will cause "Index out of range" exception at attachment.py:456.

I made temporary fix for myself as bellow, but I don't know right way to fix.

--- attachment.py	(revision 1986)
+++ attachment.py	(working copy)
@@ -452,8 +452,9 @@
             # FIXME: the formatter should know to which object belongs
             #        the text being formatted
             #        (this info will also be required for TracCrossReferences)
-            path_info = formatter.req.path_info.split('/',2)
-            parent_type, parent_id = path_info[1], path_info[2] # Kludge for now
+            path_info = formatter.req.path_info.split('/',2) + [None, None]
+            parent_type = path_info[1] or 'wiki'
+            parent_id = path_info[2] or 'WikiStart'
             filename = link
         try:
             attachment = Attachment(self.env, parent_type, parent_id, filename)

(I'm using r1986)

[cboos]

Yes, that was an oversight.

[cboos]

I applied your patch in r1998.

In the future, the Formatters will know to which Trac object
the wiki text to be formatted belongs, and then this code
will be cleaned-up.

[mgood]

Instead of this admitted kludge, why not simply send a redirect to the WikiStart page when no Wiki page is specified.

[cboos]

Well, I see that this would solve the issue for links like:

​http://trac.my.local.net/trac/wiki

but not for links like:

​http://trac.my.local.net/trac

[cmlenz]

I think the fix applied here is good enough for now.

If we started redirecting, we'd also need to redirect requests to the main page to the default module, as cboos points out, and that's kind of ugly IMHO.