BuddyPress: Default Group Avatar

functions.php

function sc_bp_default_group_avatar($avatar) {

    global $bp, $groups_template;

    if(strpos($avatar,'group-avatars')) :

        return $avatar;

    else :

        $default = get_bloginfo('template_directory') .'/asset/img/default/group.png';

        if($bp->current_action == "") :

            return '<img class="avatar" alt="'. $groups_template->group->name.'" src="'.$default.'">';

        else :

            return '<img class="avatar" alt="'. $groups_template->group->name.'" src="'.$default.'">';

        endif;

    endif;

}

add_filter('bp_get_group_avatar', 'sc_bp_default_group_avatar');