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<?php |
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/** |
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* Base daft objects. |
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* |
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* @author SignpostMarv |
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*/ |
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declare(strict_types=1); |
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namespace SignpostMarv\DaftObject; |
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use ReflectionMethod; |
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/** |
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* Base daft object. |
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*/ |
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abstract class AbstractDaftObject implements DaftObject |
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{ |
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/** |
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* List of properties that can be defined on an implementation. |
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* |
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* @var string[] |
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*/ |
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const PROPERTIES = []; |
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/** |
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* List of nullable properties that can be defined on an implementation. |
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* |
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* @var string[] |
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*/ |
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const NULLABLE_PROPERTIES = []; |
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/** |
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* Does some sanity checking. |
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* |
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* @see DefinesOwnIdPropertiesInterface |
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* @see self::CheckTypeDefinesOwnIdProperties() |
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*/ |
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public function __construct() |
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{ |
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if ( |
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($this instanceof DefinesOwnIdPropertiesInterface) |
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) { |
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self::CheckTypeDefinesOwnIdProperties($this); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __get(string $property) |
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{ |
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return $this->DoGetSet( |
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$property, |
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'Get' . ucfirst($property), |
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PropertyNotReadableException::class, |
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NotPublicGetterPropertyException::class |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __set(string $property, $v) |
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{ |
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return $this->DoGetSet( |
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$property, |
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'Set' . ucfirst($property), |
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PropertyNotWriteableException::class, |
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NotPublicSetterPropertyException::class, |
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$v |
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); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @see static::NudgePropertyValue() |
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*/ |
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public function __unset(string $property) : void |
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{ |
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$this->NudgePropertyValue($property, null); |
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} |
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/** |
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* List of properties that can be defined on an implementation. |
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* |
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* @return string[] |
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*/ |
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final public static function DaftObjectProperties() : array |
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{ |
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return static::PROPERTIES; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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final public static function DaftObjectNullableProperties() : array |
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{ |
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return static::NULLABLE_PROPERTIES; |
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} |
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/** |
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* Nudge the state of a given property, marking it as dirty. |
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* |
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* @param string $property property being nudged |
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* @param mixed $value value to nudge property with |
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* |
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* @throws UndefinedPropertyException if $property is not in static::DaftObjectProperties() |
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* @throws PropertyNotNullableException if $property is not in static::DaftObjectNullableProperties() |
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* @throws PropertyNotRewriteableException if class is write-once read-many and $property was already changed |
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*/ |
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abstract protected function NudgePropertyValue( |
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string $property, |
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$value |
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) : void; |
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/** |
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* Checks if a type correctly defines it's own id. |
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* |
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* @param DaftObject $object |
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* |
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* @throws ClassDoesNotImplementClassException if $object is not an implementation of DefinesOwnIdPropertiesInterface |
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* @throws ClassMethodReturnHasZeroArrayCountException if $object::DaftObjectIdProperties() does not contain at least one property |
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* @throws ClassMethodReturnIsNotArrayOfStringsException if $object::DaftObjectIdProperties() is not string[] |
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* @throws UndefinedPropertyException if an id property is not in $object::DaftObjectIdProperties() |
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*/ |
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final protected static function CheckTypeDefinesOwnIdProperties( |
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DaftObject $object |
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) : void { |
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if (false === ($object instanceof DefinesOwnIdPropertiesInterface)) { |
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throw new ClassDoesNotImplementClassException( |
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get_class($object), |
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DefinesOwnIdPropertiesInterface::class |
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); |
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} |
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/** |
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* @var DefinesOwnIdPropertiesInterface $object |
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*/ |
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$object = $object; |
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$properties = $object::DaftObjectIdProperties(); |
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if (count($properties) < 1) { |
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throw new ClassMethodReturnHasZeroArrayCountException( |
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get_class($object), |
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'DaftObjectIdProperties' |
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); |
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} |
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foreach ($properties as $property) { |
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if (false === is_string($property)) { |
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throw new ClassMethodReturnIsNotArrayOfStringsException( |
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get_class($object), |
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'DaftObjectIdProperties' |
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); |
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} |
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} |
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} |
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/** |
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* @param mixed $v |
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* |
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* @return mixed |
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*/ |
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private function DoGetSet( |
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string $property, |
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string $expectedMethod, |
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string $notExists, |
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string $notPublic, |
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$v = null |
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) { |
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if ( |
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( |
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'id' !== $property || |
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false === ($this instanceof DefinesOwnIdPropertiesInterface) |
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) && |
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false === in_array($property, static::DaftObjectProperties(), true) |
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) { |
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throw new UndefinedPropertyException(static::class, $property); |
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} elseif (false === method_exists($this, $expectedMethod)) { |
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throw new $notExists( |
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static::class, |
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$property |
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); |
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} elseif ( |
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false === ( |
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new ReflectionMethod(static::class, $expectedMethod) |
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)->isPublic() |
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) { |
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throw new $notPublic( |
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static::class, |
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$property |
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); |
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} |
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return $this->$expectedMethod($v); |
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} |
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} |
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