class.ilTablePropertiesStorage.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilTablePropertiesStorage
{
        var $properties = array (
                "filter" => array("storage" => "db"),
                "direction" => array("storage" => "db"),
                "order" => array("storage" => "db"),
                "rows" => array("storage" => "db"),
                "offset" => array("storage" => "session"),
                "selfields" => array("storage" => "db"),
                "selfilters" => array("storage" => "db"),
                "filter_values" => array("storage" => "db")
                );
        
        function &executeCommand()
        {
                global $ilUser, $ilCtrl;
                
                $cmd = $ilCtrl->getCmd();
//              $next_class = $this->ctrl->getNextClass($this);

                $this->$cmd();
        }
        
        function showFilter()
        {
                global $ilUser;
                
                if ($_GET["user_id"] == $ilUser->getId())
                {
                        $this->storeProperty($_GET["table_id"], $_GET["user_id"],
                                "filter", 1);
                }
        }
        
        function hideFilter()
        {
                global $ilUser;
                
                if ($_GET["user_id"] == $ilUser->getId())
                {
                        $this->storeProperty($_GET["table_id"], $_GET["user_id"],
                                "filter", 0);
                }
        }
        
        function storeProperty($a_table_id, $a_user_id, $a_property,
                $a_value)
        {
                global $ilDB;

                if ($a_table_id == "" || !$this->isValidProperty($a_property))
                {
                        return;
                }
                
                $storage = $this->properties[$a_property]["storage"];
                if ($a_user_id == ANONYMOUS_USER_ID)
                {
                        $storage = "session";
                }
                
                switch ($storage)
                {
                        case "session":
                                $_SESSION["table"][$a_table_id][$a_user_id][$a_property]
                                        = $a_value;
                                break;
                                
                        case "db":
                                $ilDB->replace("table_properties", array(
                                        "table_id" => array("text", $a_table_id),
                                        "user_id" => array("integer", $a_user_id),
                                        "property" => array("text", $a_property)),
                                        array(
                                        "value" => array("text", $a_value)
                                        ));
                }
        }
        
        function getProperty($a_table_id, $a_user_id, $a_property)
        {
                global $ilDB;
                
                if ($a_table_id == "" || !$this->isValidProperty($a_property))
                {
                        return;
                }

                $storage = $this->properties[$a_property]["storage"];
                if ($a_user_id == ANONYMOUS_USER_ID)
                {
                        $storage = "session";
                }
                
                switch ($storage)
                {
                        case "session":
                                return $_SESSION["table"][$a_table_id][$a_user_id][$a_property];
                                break;
                                
                        case "db":
                                $set = $ilDB->query("SELECT value FROM table_properties ".
                                        " WHERE table_id = ".$ilDB->quote($a_table_id, "text").
                                        " AND user_id = ".$ilDB->quote($a_user_id, "integer").
                                        " AND property = ".$ilDB->quote($a_property, "text")
                                        );
                                $rec  = $ilDB->fetchAssoc($set);
                                return $rec["value"];
                                break;
                }
        }

        function isValidProperty($a_property)
        {
                if(array_key_exists($a_property, $this->properties))
                {
                        return true;
                }
                return false;
        }
}

?>