| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Rexlabs\Smokescreen\Resource; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Rexlabs\Smokescreen\Exception\InvalidSerializerException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Rexlabs\Smokescreen\Exception\InvalidTransformerException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Rexlabs\Smokescreen\Serializer\SerializerInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Rexlabs\Smokescreen\Transformer\TransformerInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | abstract class AbstractResource implements ResourceInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |      * The data to process with the transformer. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      * @var array|\ArrayIterator|mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     protected $data; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      * Array of meta data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     protected $meta = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * The resource key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     protected $resourceKey; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * A transformer or callable to process the data attached to this resource. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * @var callable|TransformerInterface|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     protected $transformer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * Provide a custom serializer for this resource. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * @var callable|SerializerInterface|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     protected $serializer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * Create a new resource instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * @param mixed                              $data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * @param callable|TransformerInterface|null $transformer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * @param string                             $resourceKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      * @throws \Rexlabs\Smokescreen\Exception\InvalidTransformerException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     public function __construct($data = null, $transformer = null, $resourceKey = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         $this->setData($data); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         $this->setTransformer($transformer); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         $this->setResourceKey($resourceKey); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      * Get the data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     public function getData() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         return $this->data; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * Set the data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * @param mixed $data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     public function setData($data) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |         $this->data = $data; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * Get the meta data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     public function getMeta() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         return $this->meta; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |      * Set the meta data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      * @param array $meta | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |     public function setMeta(array $meta) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |         $this->meta = $meta; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      * Get the meta data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * @param string $metaKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     public function getMetaValue($metaKey) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |         return $this->meta[$metaKey]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |      * Get the resource key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * @return string|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     public function getResourceKey() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         return $this->resourceKey; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |      * Set the resource key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * @param string|null $resourceKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |     public function setResourceKey($resourceKey) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |         $this->resourceKey = $resourceKey; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * Set the meta data. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      * @param string $metaKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * @param mixed  $metaValue | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     public function setMetaValue(string $metaKey, $metaValue) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         $this->meta[$metaKey] = $metaValue; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * Get a list of relationships from the transformer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      * Only applicable when the transformer is an instance of the TransformerInterface (eg. AbstractTransformer) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |     public function getRelationships(): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         $relationships = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         if ($this->hasTransformer()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |             if (($transformer = $this->getTransformer()) instanceof TransformerInterface) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |                 $relationships = $transformer->getRelationships(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         return $relationships; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * @return boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |     public function hasTransformer(): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         return $this->transformer !== null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      * Get the transformer. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      * @return callable|TransformerInterface|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |     public function getTransformer() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         return $this->transformer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |      * Set the transformer. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * @param callable|TransformerInterface|null $transformer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |      * @throws InvalidTransformerException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |     public function setTransformer($transformer) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         if ($transformer !== null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |             if (!$this->isValidTransformer($transformer)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |                 throw new InvalidTransformerException('Transformer must be a callable or implement TransformerInterface'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |         $this->transformer = $transformer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |      * Determines if the given argument is a valid transformer. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |      * @param mixed $transformer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |     public function isValidTransformer($transformer): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |         if ($transformer instanceof TransformerInterface && method_exists($transformer, 'transform')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |         if (\is_callable($transformer)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |      * @return boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |     public function hasSerializer(): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |         return $this->serializer !== null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |      * @return callable|SerializerInterface|false|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |     public function getSerializer() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |         return $this->serializer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |      * Sets a custom serializer to be used for this resource | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |      * - Usually you will set this to an instance of SerializerInterface. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |      * - Set to false to force no serialization on this resource. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |      * - When set to null the default serializer will be used. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |      * - Optionally set a closure/callback to be used for serialization. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |      * @param callable|SerializerInterface|false|null $serializer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |      * @throws InvalidSerializerException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |     public function setSerializer($serializer) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |         if ($serializer !== null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |             if (!$this->isValidSerializer($serializer)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |                 throw new InvalidSerializerException('Serializer must be one of: callable, SerializerInterface, false or null'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |         $this->serializer = $serializer; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |      * @param mixed $serializer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |      * @return bool | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 280 |  |  |      */ | 
            
                                                        
            
                                    
            
            
                | 281 |  |  |     public function isValidSerializer($serializer): bool | 
            
                                                        
            
                                    
            
            
                | 282 |  |  |     { | 
            
                                                        
            
                                    
            
            
                | 283 |  |  |         if ($serializer === false) { | 
            
                                                        
            
                                    
            
            
                | 284 |  |  |             // False is a valid value (forces serialization to be off) | 
            
                                                        
            
                                    
            
            
                | 285 |  |  |             return true; | 
            
                                                        
            
                                    
            
            
                | 286 |  |  |         } | 
            
                                                        
            
                                    
            
            
                | 287 |  |  |         if ($serializer instanceof SerializerInterface) { | 
            
                                                        
            
                                    
            
            
                | 288 |  |  |             return true; | 
            
                                                        
            
                                    
            
            
                | 289 |  |  |         } | 
            
                                                        
            
                                    
            
            
                | 290 |  |  |         if (\is_callable($serializer)) { | 
            
                                                        
            
                                    
            
            
                | 291 |  |  |             return true; | 
            
                                                        
            
                                    
            
            
                | 292 |  |  |         } | 
            
                                                        
            
                                    
            
            
                | 293 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 294 |  |  |         return false; | 
            
                                                        
            
                                    
            
            
                | 295 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 296 |  |  | } | 
            
                        
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountIdthat can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theidproperty of an instance of theAccountclass. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.