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Port all time-related functions to new timezone handling system

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This commit is contained in:
Kijin Sung 2016-02-04 09:39:09 +09:00
parent d5ba13d7e1
commit c27da2ed24
5 changed files with 68 additions and 34 deletions
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46
common/framework/datetime.php
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@ -13,19 +13,43 @@ class DateTime
protected static $_timezones = array();
/**
* Get the timezone to display for the current user.
* Format a Unix timestamp for the current user's timezone.
*
* @param string $format Format used in PHP date() function
* @param int $timestamp Unix timestamp (optional, default is now)
* @return string
*/
public static function formatTimestampForCurrentUser($format, $timestamp = null)
{
$timezone = self::getTimezoneForCurrentUser();
if (!isset(self::$_timezones[$timezone]))
{
self::$_timezones[$timezone] = new \DateTimeZone($timezone);
}
$datetime = new \DateTime();
$datetime->setTimestamp($timestamp ?: time());
$datetime->setTimezone(self::$_timezones[$timezone]);
return $datetime->format($format);
}
/**
* Get the current user's timezone.
*
* @return string
*/
public static function getCurrentUserTimezone()
public static function getTimezoneForCurrentUser()
{
if (isset($_SESSION['timezone']))
if (isset($_SESSION['timezone']) && $_SESSION['timezone'])
{
return $_SESSION['timezone'];
}
elseif ($default = Config::get('locale.default_timezone'))
{
return $default;
}
else
{
return Config::get('locale.default_timezone');
return @date_default_timezone_get();
}
}
@ -84,6 +108,20 @@ class DateTime
return self::getTimezoneOffset($timezone, $timestamp) - Config::get('locale.internal_timezone');
}
/**
* Get the absolute (UTC) offset of a timezone written in XE legacy format ('+0900').
*
* @param string $timezone
* @return int
*/
public static function getTimezoneOffsetByLegacyFormat($timezone)
{
$multiplier = ($timezone[0] === '-') ? -60 : 60;
$timezone = preg_replace('/[^0-9]/', '', $timezone);
list($hours, $minutes) = str_split($timezone, 2);
return (((int)$hours * 60) + (int)$minutes) * $multiplier;
}
/**
* Get a PHP time zone by UTC offset.
*