| Total Complexity | 67 |
| Total Lines | 293 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like DataTransferObject often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DataTransferObject, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 21 | abstract class DataTransferObject implements DtoContract |
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| 22 | { |
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| 23 | /** @var array */ |
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| 24 | protected $onlyKeys = []; |
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| 25 | |||
| 26 | /** @var array */ |
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| 27 | protected $with = []; |
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| 28 | |||
| 29 | /** @var Property[] */ |
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| 30 | protected $properties = []; |
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| 31 | |||
| 32 | /** @var bool */ |
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| 33 | protected $immutable = false; |
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| 34 | |||
| 35 | /** @var bool */ |
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| 36 | protected $validation = true; |
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| 37 | |||
| 38 | public function __construct(array $parameters) |
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| 39 | { |
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| 40 | $this->boot($parameters); |
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| 41 | } |
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| 42 | |||
| 43 | /** |
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| 44 | * Boot the dto and process all parameters. |
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| 45 | * @param array $parameters |
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| 46 | * @throws ReflectionException |
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| 47 | */ |
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| 48 | protected function boot(array $parameters): void |
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| 49 | { |
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| 50 | $this->properties = (new PropertyFactory($this))->build($parameters); |
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| 51 | } |
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| 52 | |||
| 53 | public function setImmutable(bool $immutable): void |
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| 54 | { |
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| 55 | if ($immutable) { |
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| 56 | if (!$this->isImmutable()) { |
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| 57 | $this->immutable = true; |
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| 58 | foreach ($this->properties as $property) { |
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| 59 | $property->chainImmutable($immutable); |
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| 60 | } |
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| 61 | } |
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| 62 | } else { |
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| 63 | $this->immutable = true; |
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| 64 | } |
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| 65 | } |
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| 66 | |||
| 67 | /** |
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| 68 | * Immutable behavior |
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| 69 | * Throw error if a user tries to set a property. |
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| 70 | * @param $name |
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| 71 | * @param $value |
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| 72 | * @throws ImmutableDtoException|ImmutablePropertyDtoException|PropertyNotFoundDtoException |
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| 73 | */ |
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| 74 | public function __set($name, $value) |
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| 75 | { |
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| 76 | if ($this->immutable) { |
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| 77 | throw new ImmutableDtoException($name); |
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| 78 | } |
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| 79 | if (!isset($this->properties[$name])) { |
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| 80 | throw new PropertyNotFoundDtoException($name, get_class($this)); |
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| 81 | } |
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| 82 | |||
| 83 | if ($this->properties[$name]->isImmutable()) { |
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| 84 | throw new ImmutablePropertyDtoException($name); |
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| 85 | } |
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| 86 | $this->$name = $value; |
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| 87 | } |
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| 88 | |||
| 89 | protected function propertyExists(string $propertyName) |
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| 90 | { |
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| 91 | return array_key_exists($propertyName, $this->properties); |
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| 92 | } |
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| 93 | |||
| 94 | public function &__get($name) |
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| 95 | { |
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| 96 | if (!$this->propertyExists($name)) { |
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| 97 | if ($this instanceof WithAdditionalProperties) { |
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| 98 | if (array_key_exists($name, $this->with)) { |
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| 99 | if ($this->isImmutable()) { |
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| 100 | $value = $this->with[$name]; |
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| 101 | |||
| 102 | return $value; |
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| 103 | } |
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| 104 | |||
| 105 | return $this->with[$name]; |
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| 106 | } |
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| 107 | throw new PropertyNotFoundDtoException($name, static::class); |
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| 108 | } |
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| 109 | } |
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| 110 | $property = $this->properties[$name]; |
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| 111 | $violations = $property->getViolations(); |
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| 112 | if ($violations->count() > 0) { |
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| 113 | throw new ValidatorException([$name => $violations]); |
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| 114 | } |
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| 115 | if ($this->isImmutable()) { |
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| 116 | $value = $this->properties[$name]->getValue(); |
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| 117 | |||
| 118 | return $value; |
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| 119 | } |
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| 120 | |||
| 121 | return $this->properties[$name]->value; |
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| 122 | } |
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| 123 | |||
| 124 | public function isImmutable(): bool |
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| 125 | { |
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| 126 | return $this->immutable; |
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| 127 | } |
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| 128 | |||
| 129 | public function isValid() |
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| 130 | { |
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| 131 | return empty($this->getValidationViolations()); |
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| 132 | } |
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| 133 | |||
| 134 | public function validationEnabled() |
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| 135 | { |
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| 136 | return $this->validation; |
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| 137 | } |
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| 138 | |||
| 139 | public function enableValidation() |
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| 140 | { |
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| 141 | $this->validation = true; |
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| 142 | } |
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| 143 | |||
| 144 | public function disableValidation() |
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| 145 | { |
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| 146 | $this->validation = false; |
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| 147 | } |
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| 148 | |||
| 149 | public function all(): array |
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| 162 | } |
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| 163 | |||
| 164 | public function only(string ...$keys): DtoContract |
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| 165 | { |
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| 166 | $this->onlyKeys = array_merge($this->onlyKeys, $keys); |
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| 167 | |||
| 168 | return $this; |
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| 169 | } |
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| 170 | |||
| 171 | public function except(string ...$keys): DtoContract |
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| 172 | { |
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| 173 | foreach ($keys as $key) { |
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| 174 | if (array_key_exists($key, $this->with)) { |
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| 175 | unset($this->with[$key]); |
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| 176 | } |
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| 177 | $property = $this->properties[$key] ?? null; |
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| 178 | if (isset($property)) { |
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| 179 | $property->setVisible(false); |
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| 180 | } |
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| 181 | } |
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| 182 | |||
| 183 | return $this; |
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| 184 | } |
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| 185 | |||
| 186 | public function with(string $key, $value): DtoContract |
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| 187 | { |
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| 188 | if (array_key_exists($key, $this->properties)) { |
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| 189 | throw new PropertyAlreadyExistsException($key); |
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| 190 | } |
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| 191 | |||
| 192 | return $this->override($key, $value); |
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| 193 | } |
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| 194 | |||
| 195 | public function override(string $key, $value): DtoContract |
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| 196 | { |
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| 197 | if ($this->isImmutable()) { |
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| 198 | throw new ImmutableDtoException($key); |
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| 199 | } |
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| 200 | if (($propertyExists = array_key_exists($key, $this->properties) && $this->properties[$key]->isImmutable())) { |
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| 201 | throw new ImmutablePropertyDtoException($key); |
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| 202 | } |
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| 203 | |||
| 204 | if ($propertyExists) { |
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| 205 | $property = $this->properties[$key]; |
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| 206 | $property->set($value); |
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| 207 | if ($this->validation) { |
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| 208 | $this->validate(); |
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| 209 | } |
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| 210 | } else { |
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| 211 | $this->with[$key] = $value; |
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| 212 | } |
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| 213 | |||
| 214 | return $this; |
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| 215 | } |
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| 216 | |||
| 217 | public function toArray(): array |
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| 218 | { |
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| 219 | $data = $this->all(); |
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| 220 | $array = []; |
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| 221 | |||
| 222 | if (count($this->onlyKeys)) { |
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| 223 | $array = array_intersect_key($data, array_flip((array)$this->onlyKeys)); |
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| 224 | } else { |
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| 225 | foreach ($data as $key => $propertyValue) { |
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| 226 | if (array_key_exists($key, $this->with) || (array_key_exists($key, $this->properties) && $this->properties[$key]->isVisible() && $this->properties[$key]->isInitialized())) { |
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| 227 | $array[$key] = $propertyValue; |
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| 228 | } |
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| 229 | } |
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| 230 | } |
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| 231 | |||
| 232 | return $this->parseArray($array); |
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| 233 | } |
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| 234 | |||
| 235 | protected function parseArray(array $array): array |
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| 236 | { |
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| 237 | foreach ($array as $key => $value) { |
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| 238 | if ( |
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| 239 | $value instanceof DataTransferObject |
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| 240 | || $value instanceof DataTransferObjectCollection |
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| 241 | ) { |
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| 242 | $array[$key] = $value->toArray(); |
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| 243 | |||
| 244 | continue; |
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| 245 | } |
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| 246 | |||
| 247 | if (!is_array($value)) { |
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| 248 | continue; |
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| 249 | } |
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| 250 | |||
| 251 | $array[$key] = $this->parseArray($value); |
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| 252 | } |
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| 253 | |||
| 254 | return $array; |
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| 255 | } |
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| 256 | |||
| 257 | public function getValidationViolations() |
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| 282 | } |
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| 283 | |||
| 284 | public function validate() |
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| 285 | { |
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| 286 | $violations = $this->getValidationViolations(); |
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| 287 | if (!empty($violations)) { |
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| 288 | throw new ValidatorException($violations); |
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| 289 | } |
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| 290 | return true; |
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| 291 | } |
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| 292 | |||
| 293 | protected function recursivelySortKeys(array $array, $str = '') |
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| 314 | } |
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| 315 | } |
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| 316 |