Hi Giovanni,

yes, this is almost always possible. It's no problem to have SEF URLs turned on, although they make it a little more difficult to find the exact parameters to use, since the SEF URLs hide the parameters.

If you are able to temporarily turn off the SEF URLs then you'll be able to see the underlying parameters in the URL, and it's these that you need in order to write your PHP rules.

e.g. you might see a URL like this: (completely made up - I don't know what yours will be)

...index.php?option=com_tagcloud&view=item&tag=foobar&Itemid=84

In that case I'd use a rule like:

if ($option == "com_tagcloud" && $view == "item" ) {

  /* (note: $option and $view are pre-populated -- any others you have to get manually like below ) */

  $tag = JRequest::getVar("tag");

  if ($tag == "foobar") return 101; /* customise module id here */

}

That's just a general way of going about it, but I hope that it will get you on the right track.

Another way of getting the parameters without having to turn off your SEF URLs, is to put the following rule (temporarily) into your PHP box in the MetaMod:

echo "<pre>"; print_r($_GET) ; echo "</pre>";

This should print out the list of variables that are passed through to the page you are on. But beware - remove this code again once you are done with it, because if you leave it on it leaves your site vulnerable to XSS attacks.

Hope this helps,
Stephen

Can you send some URLs from your site (with SEF turned off), for some pages where you want the modules to appear, and some where they should not appear?

This will help to work out how to write the rule.

Cheers,
Stephen

ok, how about:

if ($option == "com_tag" && JRequest::getVar("task") == "tag" ) {

  $tag =  JRequest::getVar("tag");

  if ($tag == "libri") return 1;

}

That will target the module only onto the page that you gave the link for. It should work with SEF turned on as well.

The problem is that you have the "menu assignment" set to "none" in the MetaMod - so it will never display!

You need to set the menu assignment to the page that you want it to appear on (or "all" pages should be ok, since the PHP rule will ensure it does not display on other pages).

The module that you want MetaMod to *include* needs to have "menu assignment" set to "none" though.

It's an easy mistake to make.

Hope that helps,
Stephen

It's best to keep module 1 set to "menu assignment: none" so that it doesn't show up unless the MetaMod includes it.

Also, in your MetaMod I saw that you have the title set to display. Turn that OFF, otherwise the MetaMod title will always display, even if the MetaMod does not include module 1.

Make sense?

Cheers,
Stephen