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- 06.01.2017
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UnderscoreNamingStrategy.php
01 <?php
02 /**
03 * Zend Framework (http://framework.zend.com/)
04 *
05 * @link http://github.com/zendframework/zf2 for the canonical source repository
06 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
07 * @license http://framework.zend.com/license/new-bsd New BSD License
08 */
09
10 namespace Zend\Stdlib\Hydrator\NamingStrategy;
11
12 use Zend\Filter\FilterChain;
13
14 class UnderscoreNamingStrategy implements NamingStrategyInterface
15 {
16 /**
17 * @var FilterChain|null
18 */
19 protected static $camelCaseToUnderscoreFilter;
20
21 /**
22 * @var FilterChain|null
23 */
24 protected static $underscoreToStudlyCaseFilter;
25
26 /**
27 * Remove underscores and capitalize letters
28 *
29 * @param string $name
30 * @return string
31 */
32 public function hydrate($name)
33 {
34 return $this->getUnderscoreToStudlyCaseFilter()->filter($name);
35 }
36
37 /**
38 * Remove capitalized letters and prepend underscores.
39 *
40 * @param string $name
41 * @return string
42 */
43 public function extract($name)
44 {
45 return $this->getCamelCaseToUnderscoreFilter()->filter($name);
46 }
47
48 /**
49 * @return FilterChain
50 */
51 protected function getUnderscoreToStudlyCaseFilter()
52 {
53 if (static::$underscoreToStudlyCaseFilter instanceof FilterChain) {
54 return static::$underscoreToStudlyCaseFilter;
55 }
56
57 $filter = new FilterChain();
58
59 $filter->attachByName('WordUnderscoreToStudlyCase');
60
61 return static::$underscoreToStudlyCaseFilter = $filter;
62 }
63
64 /**
65 * @return FilterChain
66 */
67 protected function getCamelCaseToUnderscoreFilter()
68 {
69 if (static::$camelCaseToUnderscoreFilter instanceof FilterChain) {
70 return static::$camelCaseToUnderscoreFilter;
71 }
72
73 $filter = new FilterChain();
74
75 $filter->attachByName('WordCamelCaseToUnderscore');
76 $filter->attachByName('StringToLower');
77
78 return static::$camelCaseToUnderscoreFilter = $filter;
79 }
80 }
81