| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace eZ\Publish\Core\Persistence\Legacy\Tests\Content; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use eZ\Publish\SPI\Persistence\Content\Language\Handler as LanguageHandler; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use eZ\Publish\SPI\Persistence\Content\Language; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use eZ\Publish\SPI\Persistence\Content\Language\CreateStruct; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * Simple mock for a Language\Handler. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | class LanguageHandlerMock implements LanguageHandler | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     protected $languages = array(); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 16 |  |  |     public function __construct() | 
            
                                                                        
                            
            
                                    
            
            
                | 17 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 18 |  |  |         $this->languages[] = new Language( | 
            
                                                                        
                            
            
                                    
            
            
                | 19 |  |  |             array( | 
            
                                                                        
                            
            
                                    
            
            
                | 20 |  |  |                 'id' => 2, | 
            
                                                                        
                            
            
                                    
            
            
                | 21 |  |  |                 'languageCode' => 'eng-US', | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  |                 'name' => 'US english', | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  |             ) | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |         ); | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |         $this->languages[] = new Language( | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  |             array( | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |                 'id' => 4, | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |                 'languageCode' => 'eng-GB', | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  |                 'name' => 'British english', | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |             ) | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |         ); | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  |         $this->languages[] = new Language( | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |             array( | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |                 'id' => 8, | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  |                 'languageCode' => 'ger-DE', | 
            
                                                                        
                            
            
                                    
            
            
                | 36 |  |  |                 'name' => 'German', | 
            
                                                                        
                            
            
                                    
            
            
                | 37 |  |  |             ) | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  |         ); | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * Create a new language. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * @param \eZ\Publish\SPI\Persistence\Content\Language\CreateStruct $struct | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @return \eZ\Publish\SPI\Persistence\Content\Language | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     public function create(CreateStruct $struct) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         throw new \RuntimeException('Not implemented, yet.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      * Update language. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * @param \eZ\Publish\SPI\Persistence\Content\Language $struct | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     public function update(Language $struct) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         throw new \RuntimeException('Not implemented, yet.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      * Get language by id. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * @param mixed $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If language could not be found by $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * @return \eZ\Publish\SPI\Persistence\Content\Language | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     public function load($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         foreach ($this->languages as $language) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |             if ($language->id == $id) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |                 return $language; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         throw new \RuntimeException("Language $id not found."); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * Get language by Language Code (eg: eng-GB). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @param string $languageCode | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If language could not be found by $languageCode | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * @return \eZ\Publish\SPI\Persistence\Content\Language | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     public function loadByLanguageCode($languageCode) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         foreach ($this->languages as $language) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             if ($language->languageCode == $languageCode) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |                 return $language; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         throw new \RuntimeException("Language $languageCode not found."); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * Get all languages. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * Return list of languages where key of hash is language code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @return \eZ\Publish\SPI\Persistence\Content\Language[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |     public function loadAll() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         return $this->languages; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * Delete a language. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      * @todo Might throw an exception if the language is still associated with some content / types / (...) ? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * @param mixed $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     public function delete($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |         throw new \RuntimeException('Not implemented, yet.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 128 |  | View Code Duplication |     public function loadList(array $ids): iterable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         $languages = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |         foreach ($this->languages as $language) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |             if (in_array($language->id, $ids)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |                 $languages[$language->id] = $language; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         return $languages; | 
                            
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                | 138 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      * {@inheritdoc} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |      */ | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 143 |  | View Code Duplication |     public function loadListByLanguageCodes(array $languageCodes): iterable | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         $languages = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |         foreach ($this->languages as $language) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |             if (in_array($language->languageCode, $languageCodes)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |                 $languages[$language->languageCode] = $language; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         return $languages; | 
                            
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                | 153 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 154 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 155 |  |  |  | 
            
                        
If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.
Let’s take a look at an example:
Our function
my_functionexpects aPostobject, and outputs the author of the post. The base classPostreturns a simple string and outputting a simple string will work just fine. However, the child classBlogPostwhich is a sub-type ofPostinstead decided to return anobject, and is therefore violating the SOLID principles. If aBlogPostwere passed tomy_function, PHP would not complain, but ultimately fail when executing thestrtouppercall in its body.