<?php

/**
 * Context params
 *
 * Class to manipulate context parameters in Chisimba
 *
 * PHP version 5
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the
 * Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * @category  Chisimba
 * @package   context
 * @author    Wesley Nitsckie <wnitsckie@uwc.ac.za>
 * @copyright 2007 Wesley Nitsckie
 * @license   http://www.gnu.org/licenses/gpl-2.0.txt The GNU General Public License
 * @version   $Id$
 * @link      http://avoir.uwc.ac.za
 * @see       core
 */
/* -------------------- dbTable class ----------------*/
// security check - must be included in all scripts
if (! /**
 * Description for $GLOBALS
 * @global string $GLOBALS['kewl_entry_point_run']
 * @name   $kewl_entry_point_run
 */
$GLOBALS ['kewl_entry_point_run']) {
    die ( "You cannot view this page directly" );
}
// end security check


/**
 * Context params
 *
 * Class to manipulate context parameters in Chisimba
 *
 * @category  Chisimba
 * @package   context
 * @author    Wesley Nitsckie <wnitsckie@uwc.ac.za>
 * @copyright 2007 Wesley Nitsckie
 * @license   http://www.gnu.org/licenses/gpl-2.0.txt The GNU General Public License
 * @version   Release: @package_version@
 * @link      http://avoir.uwc.ac.za
 * @see       core
 */
class dbcontextparams extends dbTable {
    /**
     *Initialize by send the table name to be accessed
     */
    public function init() {
        parent::init ( 'tbl_contextparams' );
        $this->_objDBContext = $this->newObject ( 'dbcontext', 'context' );
    }

    /**
     * Method to add a parameter
     *
     * @param  string $param
     * @param  string $value
     * @param  string $contextCode
     * @access public
     * @return bool
     */
    public function setParam($contextCode, $param, $value = NULL) {
        try {
            $fields = array ('param' => $param, 'value' => $value, 'contextcode' => $contextCode );

            if ($this->getParamValue ( $contextCode, $param )) {
                //edit the param
                $sql = "UPDATE tbl_contextparams SET value = '" . $value . "' WHERE contextcode = '" . $contextCode . "' AND param = '" . $param . "'";
                return $this->getArray ( $sql );
            } else {
                return $this->insert ( $fields );
            }

        } catch ( customException $e ) {
            echo customException::cleanUp ( $e );
            die ();
        }

    }

    /**
     * Method to get a param
     *
     * @param  string $contextCode
     * @param  string $param
     * @return string
     */
    public function getParamValue($contextCode, $param) {
        $line = $this->getAll ( "WHERE contextcode = '" . $contextCode . "'  AND param = '" . $param . "'" );
        if (count ( $line ) > 0) {
            return $line [0] ['value'];
        } else {
            return FALSE;
        }

    }
}

?>