ItemID

  • Why you should want to do that? Dunno, but it's an evergreen question asked time-to-time from the first day I started to work with Mambo..., so let's take it methodically, to see how one can solve this problem!

  • The Joomla ItemID-related management of modules is a powerful tool, but sometimes you need to show/hide parts of your site on two special cases not covered by this tool: when you need to show/hide things regardless of the active ItemID - for example on all detail listings page of a given component, or when you need to deal with a component which have poor support of ItemIDs - as VirtueMart, which is notoriously misbehaving in this regard.

  • When I have seen first time this error on Joomla 1.6 while tried to save a new article in Article Manager I was lost:

    Save Failed with the Following Error: Invalid Parent ID
  • You might experienced this, the links in the Alphabar are sometimes misbehaving, the module assignments in the resulted pages are gone off, if you have some fancy module to menu associations set in your SoBiPro powered site. Obviously, this is an ItemID handling problem, and, unfortunately can be fixed only with a core hack.

  • Sometimes when you publish a new menu item, and everything seems to be OK, when you try to access the new menu item you just created you hit the wall: instead of the intended content you'll see the following error:

    You are not authorized to view this resource.
    You need to login.

    Even more confusing can be the situation when a link which used to work behaves this way. The target content item is published, access rights are set to Public, and you still got this message! What can be wrong here?