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<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\Web\Form\Validator;
use DateTime;
use Zend_Validate_Abstract;
/**
* Validator for date-and-time input controls
*
* @see \Icinga\Web\Form\Element\DateTimePicker For the date-and-time input control.
*/
class DateTimeValidator extends Zend_Validate_Abstract
{
const INVALID_DATETIME_TYPE = 'invalidDateTimeType';
const INVALID_DATETIME_FORMAT = 'invalidDateTimeFormat';
/**
* The messages to write on differen error states
*
* @var array
*
* @see Zend_Validate_Abstract::$_messageTemplates‚
*/
protected $_messageTemplates = array(
self::INVALID_DATETIME_TYPE => 'Invalid type given. Instance of DateTime or date/time string expected',
self::INVALID_DATETIME_FORMAT => 'Date/time string not in the expected format: %value%'
);
protected $local;
/**
* Create a new date-and-time input control validator
*
* @param bool $local
*/
public function __construct($local)
{
$this->local = (bool) $local;
}
/**
* Is the date and time valid?
*
* @param string|DateTime $value
* @param mixed $context
*
* @return bool
*
* @see \Zend_Validate_Interface::isValid()
*/
public function isValid($value, $context = null)
{
if (! $value instanceof DateTime && ! is_string($value)) {
$this->_error(self::INVALID_DATETIME_TYPE);
return false;
}
if (! $value instanceof DateTime) {
$format = $baseFormat = $this->local === true ? 'Y-m-d\TH:i:s' : DateTime::RFC3339;
$dateTime = DateTime::createFromFormat($format, $value);
if ($dateTime === false) {
$format = substr($format, 0, strrpos($format, ':'));
$dateTime = DateTime::createFromFormat($format, $value);
}
if ($dateTime === false || $dateTime->format($format) !== $value) {
$this->_error(self::INVALID_DATETIME_FORMAT, $baseFormat);
return false;
}
}
return true;
}
}
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