[@thomasklosinsky Participant 11 years ago]

for everyone who needs it too:

$user_id = bp_loggedin_user_id();
$group_ids = $wpdb->get_col($wpdb->prepare(“SELECT group_id FROM {$wpdb->prefix}bp_groups_members WHERE user_id = %d”,$user_id),0);
foreach ($group_ids as $group_id )
{
$category_ids .= “,”.implode(bcg_get_categories($group_id));
};
$category_ids = substr($category_ids, 1);

That’s all.

Add query_posts(“cat=$category_ids”); and you are good to go.