-
-
Notifications
You must be signed in to change notification settings - Fork 107
/
DateTimeToStringTransformer.php
118 lines (102 loc) · 3.91 KB
/
DateTimeToStringTransformer.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\Extension\Core\DataTransformer;
use Symfony\Component\Form\Exception\TransformationFailedException;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
/**
* Transforms between a date string and a DateTime object
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Florian Eckerstorfer <florian@eckerstorfer.org>
*/
class DateTimeToStringTransformer extends BaseDateTimeTransformer
{
private $format;
/**
* Transforms a \DateTime instance to a string
*
* @see \DateTime::format() for supported formats
*
* @param string $inputTimezone The name of the input timezone
* @param string $outputTimezone The name of the output timezone
* @param string $format The date format
*
* @throws UnexpectedTypeException if a timezone is not a string
*/
public function __construct($inputTimezone = null, $outputTimezone = null, $format = 'Y-m-d H:i:s')
{
parent::__construct($inputTimezone, $outputTimezone);
$this->format = $format;
}
/**
* Transforms a DateTime object into a date string with the configured format
* and timezone
*
* @param DateTime $value A DateTime object
*
* @return string A value as produced by PHP's date() function
*
* @throws UnexpectedTypeException if the given value is not a \DateTime instance
* @throws TransformationFailedException if the output timezone is not supported
*/
public function transform($value)
{
if (null === $value) {
return '';
}
if (!$value instanceof \DateTime) {
throw new UnexpectedTypeException($value, '\DateTime');
}
$value = clone $value;
try {
$value->setTimezone(new \DateTimeZone($this->outputTimezone));
} catch (\Exception $e) {
throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
}
return $value->format($this->format);
}
/**
* Transforms a date string in the configured timezone into a DateTime object.
*
* @param string $value A value as produced by PHP's date() function
*
* @return \DateTime An instance of \DateTime
*
* @throws UnexpectedTypeException if the given value is not a string
* @throws TransformationFailedException if the date could not be parsed
* @throws TransformationFailedException if the input timezone is not supported
*/
public function reverseTransform($value)
{
if (empty($value)) {
return null;
}
if (!is_string($value)) {
throw new UnexpectedTypeException($value, 'string');
}
try {
$dateTime = new \DateTime($value, new \DateTimeZone($this->outputTimezone));
$lastErrors = \DateTime::getLastErrors();
if (0 < $lastErrors['warning_count'] || 0 < $lastErrors['error_count']) {
throw new \UnexpectedValueException(implode(', ', array_merge(array_values($lastErrors['warnings']), array_values($lastErrors['errors']))));
}
// Force value to be in same format as given to transform
if ($value !== $dateTime->format($this->format)) {
$dateTime = new \DateTime($dateTime->format($this->format), new \DateTimeZone($this->outputTimezone));
}
if ($this->inputTimezone !== $this->outputTimezone) {
$dateTime->setTimeZone(new \DateTimeZone($this->inputTimezone));
}
} catch (\Exception $e) {
throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
}
return $dateTime;
}
}