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<?php declare(strict_types=1); |
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namespace AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityField; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityGubbins; |
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abstract class AssociationStubBase |
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{ |
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/** |
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* @var AssociationStubRelationType |
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*/ |
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protected $multiplicity; |
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/** |
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* Foreign key field of this end of relation. |
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* |
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* @var string|null |
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*/ |
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protected $keyFieldName; |
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/** |
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* A list of fields to Traverse between Keyfield and foreignField. |
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* |
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* @var string[] |
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*/ |
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protected $throughFieldChain; |
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/** |
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* Foreign key field of other end of relation. |
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* |
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* @var string|null |
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*/ |
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protected $foreignFieldName; |
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/** |
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* @var string|null |
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*/ |
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protected $relationName; |
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/** |
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* Target type this relation points to, if known. Is null for known-side polymorphic relations. |
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* |
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* @var string|null |
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*/ |
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protected $targType; |
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/** |
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* Base type this relation is attached to. |
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* |
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* @var string|null |
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*/ |
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protected $baseType; |
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/** |
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* Any assocations this stub is a member of. |
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* |
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* @var Association[] |
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*/ |
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protected $associations = []; |
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/** |
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* @var EntityGubbins the entity this stub lives on |
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*/ |
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protected $entity; |
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/** |
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* Sets the entity owning this AssocationStub. |
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* |
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* @param EntityGubbins $entity |
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*/ |
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public function setEntity(EntityGubbins $entity): void |
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{ |
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$this->entity = $entity; |
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} |
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/** |
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* Gets the entity owning this AssocationStub. |
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* |
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* @return EntityGubbins |
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*/ |
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public function getEntity(): EntityGubbins |
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{ |
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return $this->entity; |
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} |
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/** |
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* Adds this stub as a member of an assocation. |
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* |
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* @param Association $newAssocation the new assocation to be a member of |
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*/ |
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public function addAssociation(Association $newAssocation): void |
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{ |
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$this->associations[spl_object_hash($newAssocation)] = $newAssocation; |
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} |
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/** |
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* Gets all assocations assigned to this stub. |
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* |
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* @return Association[] All assocations this stub is a member of |
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*/ |
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public function getAssociations(): array |
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{ |
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return array_values($this->associations); |
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} |
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/** |
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* @return string |
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*/ |
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public function getRelationName() |
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{ |
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return $this->relationName; |
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} |
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/** |
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* @param string $relationName |
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*/ |
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public function setRelationName($relationName) |
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{ |
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$this->relationName = $this->checkStringInput($relationName) ? $relationName : $this->relationName; |
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} |
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/** |
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* @return AssociationStubRelationType |
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*/ |
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public function getMultiplicity() |
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{ |
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return $this->multiplicity; |
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} |
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/** |
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* @param AssociationStubRelationType $multiplicity |
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*/ |
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public function setMultiplicity(AssociationStubRelationType $multiplicity) |
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{ |
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$this->multiplicity = $multiplicity; |
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} |
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/** |
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* @return string |
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*/ |
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public function getKeyFieldName(): string |
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{ |
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return $this->keyFieldName ?? ''; |
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} |
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public function getKeyField() : ?EntityField |
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{ |
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return $this->entity->getFields()[$this->getKeyFieldName()]; |
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} |
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/** |
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* @param string $keyFieldName |
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*/ |
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public function setKeyFieldName($keyFieldName) |
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{ |
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$this->keyFieldName = $this->checkStringInput($keyFieldName) ? $keyFieldName : $this->keyFieldName; |
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} |
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public function isCompatible(AssociationStubBase $otherStub) |
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{ |
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if ($this->morphicType() != $otherStub->morphicType()) { |
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return false; |
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} |
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if (!$this->isOk()) { |
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return false; |
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} |
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if (!$otherStub->isOk()) { |
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return false; |
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} |
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return count($this->getThroughFieldChain()) === count($otherStub->getThroughFieldChain()); |
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} |
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/** |
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* Is this AssociationStub sane? |
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*/ |
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public function isOk() |
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{ |
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if (null === $this->multiplicity) { |
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return false; |
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} |
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if (null === $this->relationName) { |
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return false; |
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} |
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if (null === $this->keyFieldName) { |
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return false; |
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} |
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if (null === $this->baseType) { |
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return false; |
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} |
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$targType = $this->targType; |
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if ($this instanceof AssociationStubMonomorphic && null === $targType) { |
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return false; |
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} |
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$foreignField = $this->foreignFieldName; |
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if (null !== $targType) { |
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if (!$this->checkStringInput($targType)) { |
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return false; |
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} |
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if (!$this->checkStringInput($foreignField)) { |
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return false; |
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} |
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} |
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if (null === $this->throughFieldChain) { |
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return false; |
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} |
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return (null === $targType) === (null === $foreignField); |
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} |
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/** |
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* @return string |
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*/ |
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public function getTargType() |
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{ |
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return $this->targType; |
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} |
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/** |
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* @param string $targType |
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*/ |
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public function setTargType($targType) |
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{ |
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$this->targType = $targType; |
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} |
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/** |
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* @return string |
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*/ |
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public function getBaseType() |
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{ |
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return $this->baseType; |
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} |
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/** |
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* @param string $baseType |
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*/ |
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public function setBaseType($baseType) |
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{ |
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$this->baseType = $this->checkStringInput($baseType) ? $baseType : $this->baseType; |
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} |
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/** |
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* @return string |
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*/ |
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public function getForeignFieldName() |
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{ |
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return $this->foreignFieldName; |
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} |
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/** |
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* @param string $foreignFieldName |
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*/ |
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public function setForeignFieldName($foreignFieldName) |
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{ |
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$this->foreignFieldName = $foreignFieldName; |
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} |
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/** |
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* @return string[]|null |
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*/ |
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public function getThroughFieldChain(): array |
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{ |
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return $this->throughFieldChain; |
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} |
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/** |
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* @param string[]|null $keyChain |
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*/ |
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public function setThroughFieldChain(?array $keyChain) |
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{ |
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$this->throughFieldChain = $keyChain; |
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} |
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/** |
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* Supply a canonical sort ordering to determine order in associations. |
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* |
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* @param AssociationStubBase $other |
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* |
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* @return int |
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*/ |
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public function compare(AssociationStubBase $other) |
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{ |
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$thisFirst = $this->getKeyFieldName() === '' ? false : $this->getKeyField()->getIsKeyField(); |
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$otherFirst = $other->getKeyFieldName() === '' ? false : $other->getKeyField()->getIsKeyField(); |
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if ( |
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($thisFirst || $otherFirst) && |
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!($thisFirst && $otherFirst) |
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) { |
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return $thisFirst ? -1 : 1; |
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} |
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$cmps = [ |
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[get_class($this), get_class($other)], |
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[$this->getBaseType() ?? '', $other->getBaseType() ?? ''], |
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[$this->getRelationName() ?? '', $other->getRelationName() ?? ''], |
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]; |
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foreach ($cmps as $cmpvals) { |
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$cmp = strcmp($cmpvals[0], $cmpvals[1]); |
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if (0 !== $cmp) { |
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return $cmp / abs($cmp); |
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} |
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} |
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return 0; |
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} |
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/** |
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* Return what type of stub this is - polymorphic, monomorphic, or something else. |
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* |
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* @return string |
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*/ |
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abstract public function morphicType(); |
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/** |
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* @param $input |
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* @return bool |
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*/ |
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private function checkStringInput($input) |
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{ |
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if (null === $input || !is_string($input) || empty($input)) { |
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return false; |
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} |
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return true; |
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} |
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} |
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