]>
Commit | Line | Data |
---|---|---|
1 | <?php | |
2 | ||
3 | namespace Wallabag\CoreBundle\Form\DataTransformer; | |
4 | ||
5 | use Symfony\Component\Form\DataTransformerInterface; | |
6 | ||
7 | /** | |
8 | * Transforms a comma-separated list to a proper PHP array. | |
9 | * Example: the string "foo, bar" will become the array ["foo", "bar"]. | |
10 | */ | |
11 | class StringToListTransformer implements DataTransformerInterface | |
12 | { | |
13 | /** | |
14 | * @var string | |
15 | */ | |
16 | private $separator; | |
17 | ||
18 | /** | |
19 | * @param string $separator The separator used in the list | |
20 | */ | |
21 | public function __construct($separator = ',') | |
22 | { | |
23 | $this->separator = $separator; | |
24 | } | |
25 | ||
26 | /** | |
27 | * Transforms a list to a string. | |
28 | * | |
29 | * @param array|null $list | |
30 | * | |
31 | * @return string | |
32 | */ | |
33 | public function transform($list) | |
34 | { | |
35 | if (null === $list) { | |
36 | return ''; | |
37 | } | |
38 | ||
39 | return implode($this->separator, $list); | |
40 | } | |
41 | ||
42 | /** | |
43 | * Transforms a string to a list. | |
44 | * | |
45 | * @param string $string | |
46 | * | |
47 | * @return array|null | |
48 | */ | |
49 | public function reverseTransform($string) | |
50 | { | |
51 | if (null === $string) { | |
52 | return; | |
53 | } | |
54 | ||
55 | return array_values(array_filter(array_map('trim', explode($this->separator, $string)))); | |
56 | } | |
57 | } |