Get Wall Activities By User Role

yzc_get_activities_by_role.php

<?php

/**
 * Get Wall Activities By User Role.
 */
function yzc_get_activities_by_role( $where ) {

    if ( ! bp_is_activity_directory() ) {
        return $where;
    }
    
    // Get Users with role Hero.
    $args = array( 'role' => 'hero', 'fields' => 'ID' );
	
	$users_ids = get_users( $args );

    if ( empty( $users_ids ) ) {
        return $where;
    }

    // Add Where Statment.
    $where['limit_user'] = 'a.user_id IN(' .implode( ',', $users_ids ) . ')';

    return $where;

}

add_filter( 'bp_activity_get_where_conditions', 'yzc_get_activities_by_role' );