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<?php
/**
* ThaiYearFormatter
*
* Convert Year to Thai Buddhist Era Year
*
* @package dixonsatit
* @subpackage thaiYearFormatter
* @author Satit Seethaphon <dixonsatit@gmail.com>
*/
namespace dixonsatit\thaiYearFormatter;
use yii\i18n\Formatter;
use IntlDateFormatter;
use DateTime;
use DateTimeZone;
use yii\helpers\FormatConverter;
use Yii;
class ThaiYearFormatter extends Formatter{
private $_intlLoaded = false;
private $_dateFormats = [
'short' => 3, // IntlDateFormatter::SHORT,
'medium' => 2, // IntlDateFormatter::MEDIUM,
'long' => 1, // IntlDateFormatter::LONG,
'full' => 0, // IntlDateFormatter::FULL,
];
public function init()
{
if ($this->timeZone === null) {
$this->timeZone = Yii::$app->timeZone;
}
if ($this->locale === null) {
$this->locale = Yii::$app->language;
}
if ($this->booleanFormat === null) {
$this->booleanFormat = [Yii::t('yii', 'No', [], $this->locale), Yii::t('yii', 'Yes', [], $this->locale)];
}
if ($this->nullDisplay === null) {
$this->nullDisplay = '<span class="not-set">' . Yii::t('yii', '(not set)', [], $this->locale) . '</span>';
}
$this->_intlLoaded = extension_loaded('intl');
if (!$this->_intlLoaded) {
if ($this->decimalSeparator === null) {
$this->decimalSeparator = '.';
}
if ($this->thousandSeparator === null) {
$this->thousandSeparator = ',';
}
}
}
public function asDate($value, $format = null){
if ($format === null) {
$format = $this->dateFormat;
}
return $this->replaceYear($this->formatDateTimeValue($value, $format, 'date'));
}
public function asDatetime($value, $format = null)
{
if ($format === null) {
$format = $this->datetimeFormat;
}
return $this->replaceYear($this->formatDateTimeValue($value, $format, 'datetime'));
}
private function formatDateTimeValue($value, $format, $type)
{
// $timeZone = $this->timeZone;
$timeZone = 'UTC';
// avoid time zone conversion for date-only values
if ($type === 'date') {
list($timestamp, $hasTimeInfo) = $this->normalizeDatetimeValue($value, true);
if (!$hasTimeInfo) {
$timeZone = $this->defaultTimeZone;
}
} else {
$timestamp = $this->normalizeDatetimeValue($value);
}
if ($timestamp === null) {
return $this->nullDisplay;
}
// intl does not work with dates >=2038 or <=1901 on 32bit machines, fall back to PHP
$year = $timestamp->format('Y');
if ($this->_intlLoaded && !(PHP_INT_SIZE == 4 && ($year <= 1901 || $year >= 2038))) {
if (strncmp($format, 'php:', 4) === 0) {
$format = FormatConverter::convertDatePhpToIcu(substr($format, 4));
}
if (isset($this->_dateFormats[$format])) {
if ($type === 'date') {
$formatter = new IntlDateFormatter($this->locale, $this->_dateFormats[$format], IntlDateFormatter::NONE, $timeZone);
} elseif ($type === 'time') {
$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, $this->_dateFormats[$format], $timeZone);
} else {
$formatter = new IntlDateFormatter($this->locale, $this->_dateFormats[$format], $this->_dateFormats[$format], $timeZone);
}
} else {
$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, IntlDateFormatter::NONE, $timeZone, null, $format);
}
if ($formatter === null) {
throw new InvalidConfigException(intl_get_error_message());
}
// make IntlDateFormatter work with DateTimeImmutable
if ($timestamp instanceof \DateTimeImmutable) {
$timestamp = new DateTime($timestamp->format(DateTime::ISO8601), $timestamp->getTimezone());
}
return $formatter->format($timestamp);
} else {
if (strncmp($format, 'php:', 4) === 0) {
$format = substr($format, 4);
} else {
$format = FormatConverter::convertDateIcuToPhp($format, $type, $this->locale);
}
if ($timeZone != null) {
if ($timestamp instanceof \DateTimeImmutable) {
$timestamp = $timestamp->setTimezone(new DateTimeZone($timeZone));
} else {
$timestamp->setTimezone(new DateTimeZone($timeZone));
}
}
return $timestamp->format($format);
}
}
protected function normalizeDatetimeValue($value, $checkTimeInfo = false)
{
// checking for DateTime and DateTimeInterface is not redundant, DateTimeInterface is only in PHP>5.5
if ($value === null || $value instanceof DateTime || $value instanceof DateTimeInterface) {
// skip any processing
return $checkTimeInfo ? [$value, true] : $value;
}
if (empty($value)) {
$value = 0;
}
try {
if (is_numeric($value)) { // process as unix timestamp, which is always in UTC
$timestamp = new DateTime();
$timestamp->setTimezone(new DateTimeZone('UTC'));
$timestamp->setTimestamp($value);
$timestamp = $this->setThaiYear($timestamp);
return $checkTimeInfo ? [$timestamp, true] : $timestamp;
} elseif (($timestamp = DateTime::createFromFormat('Y-m-d', $value, new DateTimeZone($this->defaultTimeZone))) !== false) { // try Y-m-d format (support invalid dates like 2012-13-01)
$timestamp = $this->setThaiYear($timestamp);
return $checkTimeInfo ? [$timestamp, false] : $timestamp;
} elseif (($timestamp = DateTime::createFromFormat('Y-m-d H:i:s', $value, new DateTimeZone($this->defaultTimeZone))) !== false) { // try Y-m-d H:i:s format (support invalid dates like 2012-13-01 12:63:12)
$timestamp = $this->setThaiYear($timestamp);
return $checkTimeInfo ? [$timestamp, true] : $timestamp;
}
// finally try to create a DateTime object with the value
if ($checkTimeInfo) {
$timestamp = new DateTime($value, new DateTimeZone($this->defaultTimeZone));
$info = date_parse($value);
return [$timestamp, !($info['hour'] === false && $info['minute'] === false && $info['second'] === false)];
} else {
return new DateTime($value, new DateTimeZone($this->defaultTimeZone));
}
} catch (\Exception $e) {
throw new InvalidParamException("'$value' is not a valid date time value: " . $e->getMessage()
. "\n" . print_r(DateTime::getLastErrors(), true), $e->getCode(), $e);
}
}
/**
* [setThaiYear description]
* @param DateTime $timestamp [description]
*/
public function setThaiYear(DateTime $timestamp){
if($this->checkThaiLocale()){
return $timestamp->setDate(($timestamp->format('Y')+543),$timestamp->format('m'),$timestamp->format('d'));
}else{
return $timestamp;
}
}
/**
* replace Year
* @param string $strDate
* @return string date
*/
public function replaceYear($strDate)
{
return str_replace('ค.ศ.','พ.ศ.',$strDate);
}
/**
* check is Thai Locale
* @return string date
*/
public function checkThaiLocale()
{
return (strtolower($this->locale) === 'th' || $this->locale == 'th_TH' || $this->locale == 'th-TH');
}
}