trigger_action_join_user_group_for_session.inc

<?php
require_once SQ_SYSTEM_ROOT.'/core/attributes/parameter_map/parameter_map.inc';

class Trigger_Action_Join_User_Group_For_Session extends Trigger_Action
{
    function __construct($assetid=0)
    {
        parent::__construct($assetid);
    }//end constructor

    
    public static function getInterface($settings, $prefix, $write_access=FALSE)
    {
        // we only allow user group type
        $type_codes = Array(
                                'user_group' => 'D',
                            );
        
        // buffer the user group asset chooser
        ob_start();
        $user_group_to_join = isset($settings['user_group_to_join']) ? $settings['user_group_to_join'] : '';
        if ($write_access) {
            asset_finder($prefix.'[user_group_to_join]', $user_group_to_join, $type_codes);
        } else if (!empty($user_group_to_join)) {
            $user_group_asset_info = $GLOBALS['SQ_SYSTEM']->am->getAssetInfo($user_group_to_join);
            if (!empty($user_group_asset_info[$user_group_to_join])) {
                echo '<b>'.$user_group_asset_info[$user_group_to_join]['name'].' (#'.$user_group_to_join.')</b>';
            }
        }
        $user_group_input = ob_get_clean();

        // buffer the text box for entering keywords that will be replaced with a user group (hopefully)
        ob_start();
            $keyword_target_groupid = isset($settings['keyword_target_groupid']) ? $settings['keyword_target_groupid'] : '';
            if ($write_access) {
                text_box($prefix.'[keyword_target_groupid]', $keyword_target_groupid, 30);
            } else {
                echo htmlspecialchars($keyword_target_groupid);
            }
        $keyword_target_groupid_input = ob_get_clean();

        // display both the asset chooser and the text box
        $output = translate('trigger_join_user_for_session', $user_group_input, $keyword_target_groupid_input);

        return $output;

    }//end getInterface()
    

    public static function processInterface(&$settings, $request_data)
    {
        $settings['user_group_to_join']     = isset($request_data['user_group_to_join']['assetid']) ? $request_data['user_group_to_join']['assetid'] : NULL;
        $settings['keyword_target_groupid'] = isset($request_data['keyword_target_groupid']) ? $request_data['keyword_target_groupid'] : '';

        return FALSE;

    }//end processInterface()


    public static function execute($settings, &$state)
    {
        // the group id set in asset finder has the precedence
        $value = @$settings['user_group_to_join'];
        
        // if we don't have a group id in asset finder, see if we have something in the text box
        if (empty($value)) {
            $value = @$settings['keyword_target_groupid'];
            if (!empty($value)) {
                // replace global keywords
                replace_global_keywords($value);

                // replace asset keywords
                $keywords = retrieve_keywords_replacements($value);
                $replacements = Array();
                foreach ($keywords as $keyword) {
                    $replacements[$keyword] = $state['asset']->getKeywordReplacement($keyword);
                }
                replace_keywords($value, $replacements);
            
                // we only allow an id of a User Group asset
                if (!is_numeric($value)) return FALSE;
                $user_group = $GLOBALS['SQ_SYSTEM']->am->getAsset($value);
                if (!$user_group || !$user_group instanceof User_Group) return FALSE;
            } else {
                // if we don't have any group set, there's nothing we need to do
                return FALSE;
            }
        }

        // get the current user id and double check it's a User asset
        $current_user = $GLOBALS['SQ_SYSTEM']->am->getAsset($GLOBALS['SQ_SYSTEM']->user->id);
        if (!$current_user || !$current_user instanceof User) {
            return FALSE;
        }

        // get user groups the current user is in
        $current_groups = $current_user->getUserGroups();
        
        // if user is not physically linked to the specifed group
        // add the current user to the specified user group that lasts only while the current session last
        if (!in_array($value, $_SESSION['sq_effective_user_groups'][$GLOBALS['SQ_SYSTEM']->user->id])) {
            $_SESSION['sq_effective_user_groups'][$GLOBALS['SQ_SYSTEM']->user->id][] = $value;
        }

        return Array(
                'group_joined' => $value,
               );

    }//end execute()


}//end class

?>