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<?php |
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namespace AlgoWeb\PODataLaravel\Models; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\Association; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationMonomorphic; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubMonomorphic; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubPolymorphic; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubRelationType; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityGubbins; |
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class MetadataGubbinsHolder |
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{ |
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protected $relations = []; |
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protected $knownSides = []; |
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public function addEntity(EntityGubbins $entity) |
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{ |
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$className = $entity->getClassName(); |
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if (array_key_exists($className, $this->relations)) { |
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$msg = $className . ' already added'; |
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throw new \InvalidArgumentException($msg); |
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} |
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$this->relations[$className] = $entity; |
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$this->knownSides[$className] = []; |
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foreach ($entity->getStubs() as $relName => $stub) { |
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if ($stub instanceof AssociationStubPolymorphic && $stub->isKnownSide()) { |
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$this->knownSides[$className][$relName] = $stub; |
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} |
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} |
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} |
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public function getRelationsByRelationName($className, $relName) |
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{ |
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$this->checkClassExists($className); |
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$rels = $this->relations[$className]; |
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if (!array_key_exists($relName, $rels->getStubs())) { |
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$msg = 'Relation ' . $relName . ' not registered on ' . $className; |
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throw new \InvalidArgumentException($msg); |
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} |
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$stub = $rels->getStubs()[$relName]; |
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$targType = $stub->getTargType(); |
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if (!array_key_exists($targType, $this->relations)) { |
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return []; |
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} |
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$targRel = $this->relations[$targType]; |
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// now dig out compatible stubs on target type |
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$targStubs = $targRel->getStubs(); |
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$relStubs = []; |
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foreach ($targStubs as $targStub) { |
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if ($stub->isCompatible($targStub)) { |
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$relStubs[] = $targStub; |
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} |
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} |
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return $relStubs; |
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} |
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public function getRelationsByClass($className) |
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{ |
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$this->checkClassExists($className); |
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$rels = $this->relations[$className]; |
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$stubs = $rels->getStubs(); |
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$associations = []; |
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foreach ($stubs as $relName => $stub) { |
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$others = $this->getRelationsByRelationName($className, $relName); |
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if ($stub instanceof AssociationStubMonomorphic) { |
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assert( |
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1 >= count($others), |
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'Monomorphic relation stub on ' . $className . ' ' . $relName |
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. ' should point to at most 1 other stub' |
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); |
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} |
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if (1 === count($others)) { |
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$others = $others[0]; |
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$assoc = new AssociationMonomorphic(); |
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$first = -1 === $stub->compare($others); |
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$assoc->setFirst($first ? $stub : $others); |
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$assoc->setLast($first ? $others : $stub); |
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assert($assoc->isOk()); |
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$associations[] = $assoc; |
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} |
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} |
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return $associations; |
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} |
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public function getRelations() |
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{ |
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$classNames = array_keys($this->relations); |
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$associations = []; |
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foreach ($classNames as $class) { |
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$rawAssoc = $this->getRelationsByClass($class); |
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foreach ($rawAssoc as $raw) { |
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if (!in_array($raw, $associations)) { |
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$associations[] = $raw; |
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} |
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} |
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} |
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$unknowns = []; |
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foreach ($this->knownSides as $knownType => $knownDeets) { |
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$unknowns[$knownType] = []; |
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foreach (array_keys($knownDeets) as $key) { |
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$unknowns[$knownType][$key] = []; |
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} |
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} |
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$monoAssoc = []; |
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$polyAssoc = []; |
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foreach ($associations as $assoc) { |
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if ($assoc->getFirst() instanceof AssociationStubMonomorphic) { |
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$monoAssoc[] = $assoc; |
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continue; |
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} |
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// monomorphic associations are dealt with, now for the polymorphic associations - they're a mite trickier |
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$firstKnown = $assoc->getFirst()->isKnownSide(); |
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$known = $firstKnown ? $assoc->getFirst() : $assoc->getLast(); |
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$unknown = $firstKnown ? $assoc->getLast() : $assoc->getFirst(); |
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$className = $known->getBaseType(); |
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$relName = $known->getRelationName(); |
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$unknowns[$className][$relName][] = $unknown; |
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} |
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foreach ($this->knownSides as $knownType => $knownDeets) { |
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foreach (array_keys($knownDeets) as $key) { |
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$lastCandidates = $unknowns[$knownType][$key]; |
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if (0 == count($lastCandidates)) { |
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continue; |
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} |
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foreach ($lastCandidates as $lc) { |
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$stub = clone $this->knownSides[$knownType][$key]; |
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$isMulti = ($stub->getMultiplicity()->getValue() == AssociationStubRelationType::MANY); |
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$relPolyTypeName = substr($lc->getBaseType(), strrpos($lc->getBaseType(), '\\')+1); |
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$relPolyTypeName = str_plural($relPolyTypeName, $isMulti?2:1); |
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$stub->setRelationName($stub->getRelationName() . '_' . $relPolyTypeName); |
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$assoc = new AssociationMonomorphic(); |
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$first = -1 === $stub->compare($lc); |
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$assoc->setFirst($first ? $stub : $lc); |
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$assoc->setLast($first ? $lc : $stub); |
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assert($assoc->isOk()); |
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$polyAssoc[] = $assoc; |
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} |
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} |
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} |
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$result = array_merge($monoAssoc, $polyAssoc); |
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return $result; |
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} |
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public function hasClass($className) |
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{ |
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return array_key_exists($className, $this->relations); |
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} |
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/** |
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* @param $className |
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*/ |
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protected function checkClassExists($className) |
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{ |
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if (!$this->hasClass($className)) { |
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$msg = $className . ' does not exist in holder'; |
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throw new \InvalidArgumentException($msg); |
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} |
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} |
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} |
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Algo-Web /
POData-Laravel
