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<?php |
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namespace PTS\TypeCast; |
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use PTS\Tools\DeepArray; |
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use PTS\TypeCast\Types\DateTimeType; |
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class TypeCast |
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{ |
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/** @var string */ |
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protected $paramDelimiter = ':'; |
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/** @var string */ |
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protected $keysDelimiter = '.'; |
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/** @var array */ |
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protected $types = []; |
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/** @var DeepArray */ |
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protected $deepArrayService; |
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/** @var PropException */ |
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protected $notExistValue; |
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public function __construct(DeepArray $deepArrayService) |
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{ |
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$this->notExistValue = new PropException('Value is not exists'); |
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$this->deepArrayService = $deepArrayService; |
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$this->registerType('string', $this->setType('string')) |
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->registerType('int', $this->setType('int')) |
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->registerType('float', $this->setType('float')) |
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->registerType('bool', $this->setType('bool')) |
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->registerType('array', $this->setType('array')) |
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->registerType('object', $this->setType('object')) |
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->registerType('null', $this->setType('null')) |
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->registerType('datetime', new DateTimeType) |
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->registerType('each', [$this, 'eachHandlerType']); |
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} |
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/** |
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* @param array $coll |
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* @param array $rules |
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* @return array |
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* @throws PropException |
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*/ |
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protected function eachHandlerType(array $coll, array $rules): array |
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{ |
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foreach ($coll as &$value) { |
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$value = $this->castValue($value, $rules); |
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} |
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return $coll; |
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} |
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/** |
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* @param string $type |
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* @return callable |
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*/ |
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protected function setType(string $type): callable |
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{ |
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return function($value) use ($type) { |
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settype($value, $type); |
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return $value; |
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}; |
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} |
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/** |
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* @param string $name |
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* @param callable $handler |
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* @return $this |
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*/ |
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public function registerType(string $name, callable $handler): self |
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{ |
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$this->types[$name] = $handler; |
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return $this; |
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} |
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public function getTypes(): array |
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{ |
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return $this->types; |
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} |
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/** |
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* @param array $data |
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* @param array $rules |
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* @return array |
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* @throws PropException |
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*/ |
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public function cast(array $data, array $rules): array |
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{ |
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foreach ($rules as $name => $attrRules) { |
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$value = $this->getValue($name, $data, $this->notExistValue); |
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if (!($value instanceof $this->notExistValue)) { |
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$value = $this->castValue($value, $attrRules); |
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$this->setValue($name, $data, $value); |
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} |
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} |
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return $data; |
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} |
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/** |
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* @param mixed $value |
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* @param array $rules |
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* @return mixed |
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* @throws PropException |
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*/ |
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protected function castValue($value, array $rules) |
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{ |
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foreach ($rules as $rule) { |
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list($handlerAlias, $params) = is_string($rule) |
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? $this->extractStringRule($rule) |
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: $this->extractArrayRule($rule); |
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$value = $this->applyCastType($value, $params, $handlerAlias); |
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} |
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return $value; |
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} |
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/** |
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* @param mixed $value |
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* @param array $params |
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* @param string $handlerAlias |
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* @return mixed |
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* @throws PropException |
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*/ |
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protected function applyCastType($value, array $params, string $handlerAlias) |
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{ |
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$handler = $this->types[$handlerAlias] ?? null; |
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if (!$handler) { |
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throw new PropException("Handler not found for alias: {$handlerAlias}"); |
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} |
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$params = $handlerAlias === 'each' ? [$params] : $params; |
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return $handler($value, ...$params); |
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} |
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/** |
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* @param string $name |
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* @param array $data |
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* @param mixed $default |
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* @return mixed |
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*/ |
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protected function getValue(string $name, array $data, $default) |
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{ |
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$names = explode($this->keysDelimiter, $name); |
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return $this->deepArrayService->getAttr($names, $data, $default); |
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} |
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protected function setValue(string $name, array &$data, $value) |
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{ |
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$names = explode($this->keysDelimiter, $name); |
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$this->deepArrayService->setAttr($names, $data, $value); |
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} |
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public function extractArrayRule(array $rule): array |
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{ |
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return [key($rule), current($rule)]; |
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} |
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public function extractStringRule(string $rule): array |
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{ |
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$params = explode($this->paramDelimiter, $rule); |
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$handlerAlias = array_shift($params); |
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return [$handlerAlias, (array) $params]; |
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} |
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} |
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alexpts /
php-typecast
