CiviCRM Community Forums (archive)

I'm working on a couple components that integrate CiviCRM data with the Joomla account.  Right now I have to worry about making sure the external_identifier field is always populated with the Joomla user id, but I would rather use the UF_Match stuff that you have provided so as to be more compatible with future releases.  Is there a way for me to use the API to retrieve a contact by matching the Joomla id to the uf_id in the UF_Match table?

Lobo, thank you.  I actually needed the crm_uf_get_match_id function but you pointed me in the right direction.  One issue I had trying to use it was I got an error like this when I attempted it as it was:

DB_DataObject Error: No database name / dsn found anywhere

That occurred when the function looked like this:
function crm_uf_get_match_id ( $ufID ) {
require_once 'CRM/Core/BAO/UFMatch.php';
    return CRM_Core_BAO_UFMatch::getContactId( $ufID );
}
Then I added the _crm_initialize() call, it worked.  So now the function looks like this and works perfectly:
function crm_uf_get_match_id ( $ufID ) {
_crm_initialize( );   
require_once 'CRM/Core/BAO/UFMatch.php';
    return CRM_Core_BAO_UFMatch::getContactId( $ufID );
}
Thanks again for the tip.