Permit arbitrary absolute wiki page names in wiki edit template= argument

[trachacks@…]

Attached is a small enhancement to trac core wiki/web_ui.py. Please consider including this patch in a future version of trac.

When editing a new wiki page, it is possible to select from template pages placed under PageTemplates/, and it is possible to pass a template= argument directly along with an edit link to select the specific template to use.

I came across this feature recently when reviewing the ​trachacks:wiki/WikiCalendarMacro which has a base=template parameter to select the template to use when creating a new calendar subpage. For this use case, it is not really useful to be forced to place the template under PageTemplates/ where it will _also_ be visible in the new wiki page template dropdown box; these kinds of templates are only useful for the specific calendar.

To this end, I came up with this enhancement patch. If the template argument starts with a slash, e.g. template=/some/template, that absolute path is directly used as the source page, omitting the PageTemplate/ prefix that is otherwise hardcoded.

NOTE: patch is against trac 0.11.7 as that's what I'm still using. I had a look at the code in current trunk - it's unchanged, so the patch should apply with some offset.

[Ryan J Ollos]

Sorry for the long delay in reviewing the patch. I'll look at it for milestone:1.3.1.

[Christian Boos]

Moving to some later 1.3.x version.

[Ryan J Ollos]

Proposed changes in [3e7d2bc7/rjollos.git].