CiviCRM Community Forums (archive)

I've run into this as well. One of the weaknesses of Joomla.
Because of Joomla's dependence on menus to generate page links, what I often do is create a "development menu" visible only to the special category. I then use it to build links. If you create a menu like this, create a link menu item to the page in question. Then in your module settings, add this menu item to the list of pages the module should be visible on. That should solve it.
-Brian

That's exactly what I do too. Also that will work for templates. If you have a certain template you want that is not the default, you assign the templates using the hidden menu. This is most important (I have found) for the error pages. So make an error on purpose, grab the url, put it in the hidden menu and assign the template.

When you have your redirect you need to include the item id--just grab the whole url.

The idea of creating a "development menu" or "link setting menu" is that once you happen upon a page in Joomla (CiviCRM or other) that doesn't have modules appearing the way you expected (the inheritance of module settings from a parent item was lost), grab the url for that page and create a url-type menu item to that url. Now you have a menu item that you can set the module to appear on.

ItemID's are set by the menu item. The problem is that sometimes when you click deeper into a component's tools, you lose the ItemID, thus losing the reference to the menu item, and losing the module setting. This workaround creates a new ItemID for the page with missing modules, and lets you reference it from the module setting.

I have not used this for error pages. It should work in theory, unless the specific error page has very user-specific info in the url, or other url variables that change a lot.

This is a workaround -- so it's not perfect. But it gets the job done for the most part. The issue is not specific to CiviCRM -- I run into it with other Joomla components as well.

-Brian