I’m also interested in solving this problem (I think the number 1 is actually the user id). The only way I could find is to use bp_before_activity_add_parse_args filter:
function me_activity_parse_filter( $cpt ) {
if ( $cpt['type'] == 'your_custom_type' ) {
$cpt['item_id'] = bp_get_current_group_id();
}
return $cpt;
}
add_filter('bp_before_activity_add_parse_args', 'me_activity_parse_filter');
However, if the cpt post is updated a new activity is created instead updating the original one…
Note that in bp_activity_set_post_type_tracking_args I have
'component_id' => 'groups',
Maybe @imath can help us to solve this issue.
Here is another approach. I dont like it at all because you cannot check a custom post type (you dont have the activity object). But it works.
function me_filter_bp_activity_item_id_before_save( $item_id ) {
if ( !empty(bp_get_current_group_id()) ) $item_id = bp_get_current_group_id();
return $item_id ;
};
add_filter( 'bp_activity_item_id_before_save', 'me_filter_bp_activity_item_id_before_save', 10, 1 );
BTW: The value 1 seems to be the default blog ID.
In this thread @imath explains that:
Custom Post Type Support for Activity
I found a workaround to avoid the creation of duplicate activities for the same cpt post on updating.
function me_activity_parse_args_filter( $args = array() ) {
if ( !empty( $args['type'] ) && $args['type'] == 'new_your-cpt' ) {
$activities = bp_activity_get(array(
'max' => 1,
'filter' => array(
'action' => 'new_your-cpt',
'secondary_id' => $args['secondary_item_id'],
),
) );
if (count($activities['activities'])==0) { // The cpt post doesn't have activity yet, so we set the group information
$args['component'] = 'groups'; // You could set this as 'component_id' in bp_activity_set_post_type_tracking_args
if ( !empty(bp_get_current_group_id()) ) $args['item_id'] = bp_get_current_group_id();
if (empty($args['content'])) $args['content'] = ' '; // To make sure content filter applies afterwards
} else { // Activity already exists
$args['type'] = false; // Delete duplicate activity
}
}
return $args;
}
add_filter('bp_after_activity_add_parse_args', 'me_activity_parse_args_filter',10,1);