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upgrade: MDL-19763 Improve the redirect that forces a DB upgrade when there are major changes

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Also fix redirect, so 303 redirects don't need to fully initialise $OUTPUT.
This commit is contained in:
tjhunt 2009-07-10 08:44:01 +00:00
parent 8dff48bf45
commit 5e39d7aa09
5 changed files with 55 additions and 31 deletions
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65
lib/setuplib.php
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@ -655,6 +655,29 @@ function get_real_size($size=0) {
return $size;
}
/**
* Check whether a major upgrade is needed. That is defined as an upgrade that
* changes something really fundamental in the database, so nothing can possibly
* work until the database has been updated, and that is defined by the hard-coded
* version number in this function.
*/
function redirect_if_major_upgrade_required() {
global $CFG;
$lastmajordbchanges = 2009071000;
if (empty($CFG->version) or (int)$CFG->version < $lastmajordbchanges or
during_initial_install() or !empty($CFG->adminsetuppending)) {
try {
@session_get_instance()->terminate_current();
} catch (Exception $e) {
// Ignore any errors, redirect to upgrade anyway.
}
@header($_SERVER['SERVER_PROTOCOL'] . ' 303 See Other');
@header('Location: ' . $CFG->wwwroot . '/' . $CFG->admin . '/index.php');
echo bootstrap_renderer::plain_redirect_message($encodedurl);
exit;
}
}
/**
* Create a directory.
*
@ -839,39 +862,51 @@ class bootstrap_renderer {
@header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
@header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
if (function_exists('get_string') && function_exists('get_html_lang')) {
$htmllang = get_html_lang();
if (function_exists('get_string')) {
$strerror = get_string('error');
} else {
$htmllang = '';
$strerror = 'Error';
}
$output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" ' . $htmllang . '>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>' . $strerror . '</title>
</head><body>
<div style="margin-top: 6em; margin-left:auto; margin-right:auto; color:#990000; text-align:center; font-size:large; border-width:1px;
$content = '<div style="margin-top: 6em; margin-left:auto; margin-right:auto; color:#990000; text-align:center; font-size:large; border-width:1px;
border-color:black; background-color:#ffffee; border-style:solid; border-radius: 20px; border-collapse: collapse;
width: 80%; -moz-border-radius: 20px; padding: 15px">
' . $message . '
</div>';
if (!empty($CFG->debug) && $CFG->debug >= DEBUG_DEVELOPER) {
if (!empty($debuginfo)) {
$output .= '<div class="notifytiny">' . $debuginfo . '</div>';
$content .= '<div class="notifytiny">' . $debuginfo . '</div>';
}
if (!empty($backtrace)) {
$output .= '<div class="notifytiny">Stack trace: ' . format_backtrace($backtrace, false) . '</div>';
$content .= '<div class="notifytiny">Stack trace: ' . format_backtrace($backtrace, false) . '</div>';
}
}
$output .= '</body></html>';
return $output;
return self::plain_page($strerror, $content);
}
public static function early_notification($message, $classes = 'notifyproblem') {
return '<div class="' . $classes . '">' . $message . '</div>';
}
public static function plain_redirect_message($encodedurl) {
$message = '<p>' . get_string('pageshouldredirect') . '</p><p><a href="'.
$encodedurl .'">'. get_string('continue') .'</a></p>';
return plain_page(get_string('redirect'), $message);
}
protected static function plain_page($title, $content) {
if (function_exists('get_string') && function_exists('get_html_lang')) {
$htmllang = get_html_lang();
} else {
$htmllang = '';
}
return '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" ' . $htmllang . '>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>' . $title . '</title>
</head><body>' . $content . '</body></html>';
}
}