chamilo / chamilo-lms

     *

     * @return HTML_QuickForm_element

     */

    public static function addUserGroupMultiSelect(&$form, $to_already_selected)

    {

        $user_list = self::getCourseUsers();

        $group_list = self::getCourseGroups();

        $array = self::buildSelectOptions($group_list, $user_list, $to_already_selected);

        $result = array();

        foreach ($array as $content) {

            $result[$content['value']] = $content['content'];

        }

        return $form->addElement(

            'advmultiselect',

            'users',

            get_lang('Users'),

            $result,

            array('select_all_checkbox' => true)

        );

    }

    /**

     * This function separates the users from the groups

     * @param int $group_id

     * @param array $to

     */

    public static function addGroupMultiSelect($form, $group_id, $to = array())

    {

        $group_users = GroupManager::get_subscribed_users($group_id);

        $array = self::buildSelectOptions(null, $group_users, $to);

        $result = array();

        foreach ($array as $content) {

            $result[$content['value']] = $content['content'];

        }

        $form->addElement('advmultiselect', 'users', get_lang('Users'), $result);

    }

    /**

     * this function shows the form for sending a message to a specific group or user.