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rewrote upgrade for GMT, now checks for the option gmt_offset before changing anything

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git-svn-id: http://svn.automattic.com/wordpress/trunk@942 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
michelvaldrighi 2004-02-26 16:13:05 +00:00
parent b69088dea3
commit 9012cd8a44
1 changed files with 32 additions and 27 deletions
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57
wp-admin/upgrade-functions.php
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@ -712,42 +712,47 @@ function upgrade_110() {
$wpdb->query("INSERT INTO $tableoptions (option_id, option_name, option_type, option_value, option_description, option_admin_level) VALUES (93, 'blog_charset', 3, 'utf-8', 'Your blog&#8217;s charset (here&#8217;s a <a href=\"http://developer.apple.com/documentation/macos8/TextIntlSvcs/TextEncodingConversionManager/TEC1.5/TEC.b0.html\">list of possible charsets</a>)', 8)");
}
// Convert all datetime fields' values to GMT, and update $time_difference
$time_difference = get_settings('time_difference');
// Convert all datetime fields' values to GMT, add a gmt_offset option
if (!get_settings('gmt_offset')) {
// echo '1';
$all_options = get_alloptions();
$time_difference = $all_options->time_difference;
$server_time = gmmktime(date('H'), date('i'), date('s'), date('m'), date('d'), date('Y'));
$w = date('Y-m-d H:i:s', time() + $time_difference*3600);
$weblogger_time = gmmktime(substr($w,11,13), substr($w,14,16), substr($w,17,19), substr($w,5,7), substr($w,8,10), substr($w,0,4));
$gmt_time = time();
$server_time = time()+date('Z');
$weblogger_time = $server_time + $time_difference*3600;
$gmt_time = time();
$diff_gmt_server = ($gmt_time - $server_time) / 3600;
$diff_weblogger_server = ($weblogger_time - $server_time) / 3600;
$diff_gmt_weblogger = $diff_gmt_server - $diff_weblogger_server;
$diff_gmt_server = ($gmt_time - $server_time) / 3600;
$diff_weblogger_server = ($weblogger_time - $server_time) / 3600;
$diff_gmt_weblogger = $diff_gmt_server - $diff_weblogger_server;
if (strval(current_time('timestamp') - $time_difference*3600) != gmdate('Y-m-d H:i:s', time())) {
if ($diff_gmt_weblogger != 0) {
//echo '<br>2: ';
$gmt_offset = -$diff_gmt_weblogger;
$new_time_difference = -$diff_gmt_weblogger;
$add_hours = intval($diff_gmt_weblogger);
$add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
// echo $add_hours.':'.$add_minutes;
$add_hours = intval($diff_gmt_weblogger);
$add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
// Add or substract time to all dates, to get GMT dates
$wpdb->query("UPDATE $tableposts SET post_date = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $tableposts SET post_modified = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE) WHERE post_modified != '0000-00-00 00:00:00'");
$wpdb->query("UPDATE $tablecomments SET comment_date = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $tableusers SET dateYMDhour = DATE_ADD(dateYMDhour, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
#the queries are simple
$wpdb->query("UPDATE $tableposts SET post_date = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $tableposts SET post_modified = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE) WHERE post_modified != '0000-00-00 00:00:00'");
$wpdb->query("UPDATE $tablecomments SET comment_date = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $tableusers SET dateYMDhour = DATE_ADD(dateYMDhour, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
#and then we update time_difference to use the new value
$wpdb->query("UPDATE $tableoptions SET option_value = '$new_time_difference' WHERE option_name = 'time_difference'");
} else {
//echo '3';
$gmt_offset = 0;
}
} else {
#if the times are already stored as GMT, we shouldn't have anything to do
#except set time_difference to zero
$wpdb->query("UPDATE $tableoptions SET option_value = '0' WHERE option_name = 'time_difference'");
// Add gmt_field option, with value $gmt_offset
if(!$wpdb->get_var("SELECT * FROM $tableoptions WHERE option_name = 'gmt_offset'")) {
// echo "<br>4: $gmt_offset";
$wpdb->query("INSERT INTO $tableoptions (option_id, option_name, option_type, option_value, option_description, option_admin_level) VALUES (94, 'gmt_offset', 8, $gmt_offset, 'The difference in hours between GMT and your timezone', 8)");
}
}
}
?>