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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/entity project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\Entity; |
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use Daikon\Entity\Path\ValuePathParser; |
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use Daikon\Entity\Path\ValuePathPart; |
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use Daikon\Interop\Assertion; |
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use Daikon\ValueObject\ValueObjectInterface; |
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use Daikon\ValueObject\ValueObjectMap; |
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abstract class Entity implements EntityInterface |
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{ |
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private ValueObjectMap $valueObjectMap; |
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private ValuePathParser $pathParser; |
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final protected function __construct(array $state = []) |
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{ |
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$this->pathParser = ValuePathParser::create(); |
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$objects = []; |
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foreach ($this->getAttributeMap() as $name => $attribute) { |
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if (array_key_exists($name, $state)) { |
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$objects[$name] = $attribute->makeValue($state[$name]); |
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} |
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} |
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$this->valueObjectMap = new ValueObjectMap($objects); |
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} |
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/** |
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* @param array $state |
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* @return static |
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*/ |
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public static function fromNative($state): self |
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{ |
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return new static($state); |
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} |
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public function toNative(): array |
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{ |
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$entityState = $this->valueObjectMap->toNative(); |
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$entityState[EntityInterface::TYPE_KEY] = static::class; |
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return $entityState; |
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} |
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/** @param static $entity */ |
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public function isSameAs($entity): bool |
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{ |
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Assertion::isInstanceOf($entity, static::class); |
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return $this->getIdentity()->equals($entity->getIdentity()); |
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} |
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public function has(string $name): bool |
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{ |
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$has = $this->getAttributeMap()->has($name); |
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Assertion::true($has, sprintf("Attribute '%s' is not known to the entity '%s'.", $name, static::class)); |
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return $this->valueObjectMap->has($name); |
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} |
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public function get(string $name, $default = null): ?ValueObjectInterface |
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{ |
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if (mb_strpos($name, '.')) { |
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return $this->evaluatePath($name); |
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} |
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$attribute = $this->getAttributeMap()->get($name, null); |
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Assertion::notNull($attribute, sprintf("Attribute '%s' is not known to entity '%s'.", $name, static::class)); |
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/** @psalm-suppress PossiblyNullArgument */ |
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$attributeType = get_class($attribute); |
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Assertion::nullOrIsInstanceOf($default, $attributeType, sprintf( |
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"Default type for '$name' must be null or $attributeType, but got '%s'.", |
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is_object($default) ? get_class($default) : @gettype($default) |
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)); |
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return $this->valueObjectMap->get($name, $default); |
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} |
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/** @return static */ |
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public function withValue(string $name, $value): self |
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{ |
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$copy = clone $this; |
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$copy->valueObjectMap = $copy->valueObjectMap->with($name, $this->makeValue($name, $value)); |
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return $copy; |
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} |
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/** @return static */ |
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public function withValues(iterable $values): self |
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{ |
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$copy = clone $this; |
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foreach ($values as $name => $value) { |
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$copy->valueObjectMap = $copy->valueObjectMap->with($name, $this->makeValue($name, $value)); |
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} |
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return $copy; |
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} |
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/** @param static $comparator */ |
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public function equals($comparator): bool |
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{ |
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Assertion::isInstanceOf($comparator, static::class); |
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return (new EntityDiff)($this, $comparator)->isEmpty(); |
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} |
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public function __toString(): string |
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{ |
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return (string)$this->getIdentity(); |
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} |
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/** @param mixed $value */ |
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private function makeValue(string $name, $value): ValueObjectInterface |
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{ |
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$attribute = $this->getAttributeMap()->get($name, null); |
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Assertion::isInstanceOf( |
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$attribute, |
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AttributeInterface::class, |
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sprintf("Attribute '%s' is unknown to entity '%s'.", $name, static::class) |
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); |
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/** @var AttributeInterface $attribute */ |
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return $attribute->makeValue($value); |
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} |
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private function evaluatePath(string $valuePath): ?ValueObjectInterface |
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{ |
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$entity = $this; |
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/** @var ValuePathPart $pathPart */ |
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foreach ($this->pathParser->parse($valuePath) as $pathPart) { |
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$name = $pathPart->getAttributeName(); |
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$value = $entity ? $entity->get($name) : null; |
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if ($value && $pathPart->hasPosition()) { |
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Assertion::isInstanceOf( |
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$value, |
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EntityList::class, |
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sprintf("Trying to traverse a non-entity list '%s' on entity '%s'.", $name, static::class) |
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); |
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/** @var EntityList $value */ |
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$entity = $value->get($pathPart->getPosition()); |
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$value = $entity; |
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} |
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} |
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return $value ?? null; |
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} |
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public function __get(string $attribute) |
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{ |
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return $this->get($attribute); |
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} |
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public function __clone() |
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{ |
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$this->pathParser = clone $this->pathParser; |
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$this->valueObjectMap = clone $this->valueObjectMap; |
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} |
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} |
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daikon-cqrs /
entity
