diff options
Diffstat (limited to 'vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/ChoicesToBooleanArrayTransformer.php')
-rw-r--r-- | vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/ChoicesToBooleanArrayTransformer.php | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/ChoicesToBooleanArrayTransformer.php b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/ChoicesToBooleanArrayTransformer.php new file mode 100644 index 00000000..a13c0d4d --- /dev/null +++ b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/ChoicesToBooleanArrayTransformer.php | |||
@@ -0,0 +1,117 @@ | |||
1 | <?php | ||
2 | |||
3 | /* | ||
4 | * This file is part of the Symfony package. | ||
5 | * | ||
6 | * (c) Fabien Potencier <fabien@symfony.com> | ||
7 | * | ||
8 | * For the full copyright and license information, please view the LICENSE | ||
9 | * file that was distributed with this source code. | ||
10 | */ | ||
11 | |||
12 | namespace Symfony\Component\Form\Extension\Core\DataTransformer; | ||
13 | |||
14 | use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface; | ||
15 | use Symfony\Component\Form\DataTransformerInterface; | ||
16 | use Symfony\Component\Form\Exception\TransformationFailedException; | ||
17 | |||
18 | /** | ||
19 | * @author Bernhard Schussek <bschussek@gmail.com> | ||
20 | */ | ||
21 | class ChoicesToBooleanArrayTransformer implements DataTransformerInterface | ||
22 | { | ||
23 | private $choiceList; | ||
24 | |||
25 | public function __construct(ChoiceListInterface $choiceList) | ||
26 | { | ||
27 | $this->choiceList = $choiceList; | ||
28 | } | ||
29 | |||
30 | /** | ||
31 | * Transforms an array of choices to a format appropriate for the nested | ||
32 | * checkboxes/radio buttons. | ||
33 | * | ||
34 | * The result is an array with the options as keys and true/false as values, | ||
35 | * depending on whether a given option is selected. If this field is rendered | ||
36 | * as select tag, the value is not modified. | ||
37 | * | ||
38 | * @param mixed $array An array | ||
39 | * | ||
40 | * @return mixed An array | ||
41 | * | ||
42 | * @throws TransformationFailedException If the given value is not an array | ||
43 | * or if the choices can not be retrieved. | ||
44 | */ | ||
45 | public function transform($array) | ||
46 | { | ||
47 | if (null === $array) { | ||
48 | return array(); | ||
49 | } | ||
50 | |||
51 | if (!is_array($array)) { | ||
52 | throw new TransformationFailedException('Expected an array.'); | ||
53 | } | ||
54 | |||
55 | try { | ||
56 | $values = $this->choiceList->getValues(); | ||
57 | } catch (\Exception $e) { | ||
58 | throw new TransformationFailedException('Can not get the choice list', $e->getCode(), $e); | ||
59 | } | ||
60 | |||
61 | $indexMap = array_flip($this->choiceList->getIndicesForChoices($array)); | ||
62 | |||
63 | foreach ($values as $i => $value) { | ||
64 | $values[$i] = isset($indexMap[$i]); | ||
65 | } | ||
66 | |||
67 | return $values; | ||
68 | } | ||
69 | |||
70 | /** | ||
71 | * Transforms a checkbox/radio button array to an array of choices. | ||
72 | * | ||
73 | * The input value is an array with the choices as keys and true/false as | ||
74 | * values, depending on whether a given choice is selected. The output | ||
75 | * is an array with the selected choices. | ||
76 | * | ||
77 | * @param mixed $values An array | ||
78 | * | ||
79 | * @return mixed An array | ||
80 | * | ||
81 | * @throws TransformationFailedException If the given value is not an array, | ||
82 | * if the recuperation of the choices | ||
83 | * fails or if some choice can't be | ||
84 | * found. | ||
85 | */ | ||
86 | public function reverseTransform($values) | ||
87 | { | ||
88 | if (!is_array($values)) { | ||
89 | throw new TransformationFailedException('Expected an array.'); | ||
90 | } | ||
91 | |||
92 | try { | ||
93 | $choices = $this->choiceList->getChoices(); | ||
94 | } catch (\Exception $e) { | ||
95 | throw new TransformationFailedException('Can not get the choice list', $e->getCode(), $e); | ||
96 | } | ||
97 | |||
98 | $result = array(); | ||
99 | $unknown = array(); | ||
100 | |||
101 | foreach ($values as $i => $selected) { | ||
102 | if ($selected) { | ||
103 | if (isset($choices[$i])) { | ||
104 | $result[] = $choices[$i]; | ||
105 | } else { | ||
106 | $unknown[] = $i; | ||
107 | } | ||
108 | } | ||
109 | } | ||
110 | |||
111 | if (count($unknown) > 0) { | ||
112 | throw new TransformationFailedException(sprintf('The choices "%s" were not found', implode('", "', $unknown))); | ||
113 | } | ||
114 | |||
115 | return $result; | ||
116 | } | ||
117 | } | ||