/
DateTimeType.php
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/
DateTimeType.php
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<?php
/**
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database\Type;
use Cake\Database\Driver;
use Cake\Database\Type;
use DateTime;
use Exception;
use RuntimeException;
/**
* Datetime type converter.
*
* Use to convert datetime instances to strings & back.
*/
class DateTimeType extends Type
{
/**
* The class to use for representing date objects
*
* @var string
*/
public static $dateTimeClass = 'Cake\I18n\Time';
/**
* String format to use for DateTime parsing
*
* @var string
*/
protected $_format = 'Y-m-d H:i:s';
/**
* Whether dates should be parsed using a locale aware parser
* when marshalling string inputs.
*
* @var bool
*/
protected $_useLocaleParser = false;
/**
* The date format to use for parsing incoming dates for marshalling.
*
* @var string|array|int
*/
protected $_localeFormat;
/**
* An instance of the configured dateTimeClass, used to quickly generate
* new instances without calling the constructor.
*
* @var \DateTime
*/
protected $_datetimeInstance;
/**
* {@inheritDoc}
*/
public function __construct($name = null)
{
parent::__construct($name);
if (!class_exists(static::$dateTimeClass)) {
static::$dateTimeClass = 'DateTime';
}
$this->_datetimeInstance = new static::$dateTimeClass;
}
/**
* Convert DateTime instance into strings.
*
* @param string|int|\DateTime $value The value to convert.
* @param Driver $driver The driver instance to convert with.
* @return string
*/
public function toDatabase($value, Driver $driver)
{
if ($value === null || is_string($value)) {
return $value;
}
if (is_int($value)) {
$value = new static::$dateTimeClass('@' . $value);
}
return $value->format($this->_format);
}
/**
* Convert strings into DateTime instances.
*
* @param string $value The value to convert.
* @param Driver $driver The driver instance to convert with.
* @return \Cake\I18n\Time|\DateTime
*/
public function toPHP($value, Driver $driver)
{
if ($value === null || strpos($value, '0000-00-00') === 0) {
return null;
}
if (strpos($value, '.') !== false) {
list($value) = explode('.', $value);
}
$instance = clone $this->_datetimeInstance;
return $instance->modify($value);
}
/**
* Convert request data into a datetime object.
*
* @param mixed $value Request data
* @return \Cake\I18n\Time|\DateTime
*/
public function marshal($value)
{
if ($value instanceof DateTime) {
return $value;
}
$class = static::$dateTimeClass;
try {
$compare = $date = false;
if ($value === '' || $value === null || $value === false || $value === true) {
return null;
} elseif (is_numeric($value)) {
$date = new $class('@' . $value);
} elseif (is_string($value) && $this->_useLocaleParser) {
return $this->_parseValue($value);
} elseif (is_string($value)) {
$date = new $class($value);
$compare = true;
}
if ($compare && $date && $date->format($this->_format) !== $value) {
return $value;
}
if ($date) {
return $date;
}
} catch (Exception $e) {
return $value;
}
if (is_array($value) && implode('', $value) === '') {
return null;
}
$value += ['hour' => 0, 'minute' => 0, 'second' => 0];
$format = '';
if (isset($value['year'], $value['month'], $value['day']) &&
(is_numeric($value['year']) && is_numeric($value['month']) && is_numeric($value['day']))
) {
$format .= sprintf('%d-%02d-%02d', $value['year'], $value['month'], $value['day']);
}
if (isset($value['meridian']) && (int)$value['hour'] === 12) {
$value['hour'] = 0;
}
if (isset($value['meridian'])) {
$value['hour'] = strtolower($value['meridian']) === 'am' ? $value['hour'] : $value['hour'] + 12;
}
$format .= sprintf(
'%s%02d:%02d:%02d',
empty($format) ? '' : ' ',
$value['hour'],
$value['minute'],
$value['second']
);
$tz = isset($value['timezone']) ? $value['timezone'] : null;
return new $class($format, $tz);
}
/**
* Sets whether or not to parse dates passed to the marshal() function
* by using a locale aware parser.
*
* @param bool $enable Whether or not to enable
* @return $this
*/
public function useLocaleParser($enable = true)
{
if ($enable === false) {
$this->_useLocaleParser = $enable;
return $this;
}
if (static::$dateTimeClass === 'Cake\I18n\Time' ||
is_subclass_of(static::$dateTimeClass, 'Cake\I18n\Time')
) {
$this->_useLocaleParser = $enable;
return $this;
}
throw new RuntimeException(
sprintf('Cannot use locale parsing with the %s class', static::$dateTimeClass)
);
}
/**
* Sets the format string to use for parsing dates in this class. The formats
* that are accepted are documented in the `Cake\I18n\Time::parseDateTime()`
* function.
*
* @param string|array $format The format in which the string are passed.
* @see \Cake\I18n\Time::parseDateTime()
* @return $this
*/
public function setLocaleFormat($format)
{
$this->_localeFormat = $format;
return $this;
}
/**
* Converts a string into a DateTime object after parseing it using the locale
* aware parser with the specified format.
*
* @param string $value The value to parse and convert to an object.
* @return \Cake\I18n\Time|null
*/
protected function _parseValue($value)
{
$class = static::$dateTimeClass;
return $class::parseDateTime($value, $this->_localeFormat);
}
}