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<?php
/**
 * This program is part of mahara
 *
 *  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 *
 * @package    mahara
 * @subpackage admin
 * @author     Penny Leach <penny@catalyst.net.nz>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2006,2007 Catalyst IT Ltd http://catalyst.net.nz
 *
 */

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define('INTERNAL', 1);
define('INSTALLER', 1);
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require(dirname(dirname(__FILE__)).'/init.php');

$upgrades = check_upgrades();

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$js = 'var todo = ' . json_encode(array_keys($upgrades)) . ";\n";
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$loadingicon = theme_get_image_path('loading.gif');
$successicon = theme_get_image_path('success.gif');
$failureicon = theme_get_image_path('failure.gif');

$loadingstring = get_string('upgradeloading','admin');
$successstring = get_string('upgradesuccess','admin');
$failurestring = get_string('upgradefailure','admin');

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$js .= <<< EOJS
            function processNext() {
                var element = todo.shift();

                if ( ! element ) {
                    // we're done
                    return;
                }

                var d = loadJSONDoc('upgrade.json.php', { 'name': element });

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                $(element).innerHTML = '<img src="{$loadingicon}" alt="{$loadingstring}" />';
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                d.addCallback(function (data) {
                    if ( data.success ) {
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                        var message = '{$successstring}' + data.newversion;
                        $(data.key).innerHTML = '<img src="{$successicon}" alt="' + message + '" />  ' + message;
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                    }
                    else {
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                        var message = '';
                        if (data.errormessage) {
                            message = data.errormessage;
                        } 
                        else {
                            message = '{$failurestring}';
                        }
                        $(data.key).innerHTML = '<img src="{$failureicon}" alt="' + message + '" /> ' + message;
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                    }
                    processNext();
                });
            }

            addLoadEvent( processNext );
EOJS;

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// @todo<nigel>: given that this is PHP5, I am unsure of the need for & here - will check this out
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$smarty = &smarty(array('mochikit'));
$smarty->assign('INLINEJAVASCRIPT',$js);


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$smarty->assign_by_ref('upgrades',$upgrades);
$smarty->display('admin/upgrade.tpl');



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?>