Hi all,
Hope someone from this forum may give me a light about the following:
I installed Adsmanager 2.9.5 with joomla 3.1.5. I want to clone mod_adsmanager_menu module in order to group ads by a custom field (e.g. by states - using external table) instead of category. Here are the steps I have done so far:
1) Create a copy of /modules/mod_adsmanager_menu directory, including all its content (i.e. /modules/mod_adsmanager_menu_states)
2) Rename xml and php file matching same name as new directory from step 1. I.E.
mod_adsmanager_menu_states.xml
mod_adsmanager_menu_states.php
3) Using extension manager>Discover option (joomla), install new module

After completing steps 1, 2 and 3 I don´t have any problem to publish it using module manager. However, If I create a new copy of /administrator/components/com_adsmanager/models/category.php and I update /modules/mod_adsmanager_menu_states/mod_adsmanager_menu_states.php with the new file name (see below), the module stops working (now I get a blank screen).

Replace:
require_once(JPATH_BASE.'/administrator/components/com_adsmanager/models/category.php');

With:
require_once(JPATH_BASE.'/administrator/components/com_adsmanager/models/states.php');

I'm not a PHP programmer - it is clear that I am missing something. Any hint will be very appreciated.

Thanks,

-Cesar Romo