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<?php |
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declare(strict_types=1); |
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namespace Cycle\ORM\Transaction; |
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use Cycle\ORM\Command\CommandInterface; |
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use Cycle\ORM\Command\Special\Sequence; |
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use Cycle\ORM\Command\Special\WrappedStoreCommand; |
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use Cycle\ORM\Command\StoreCommandInterface; |
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use Cycle\ORM\Heap\Node; |
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use Cycle\ORM\ORMInterface; |
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use Cycle\ORM\SchemaInterface; |
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/** |
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* @internal |
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*/ |
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class CommandGenerator implements CommandGeneratorInterface |
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{ |
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public function generateStoreCommand(ORMInterface $orm, Tuple $tuple): ?CommandInterface |
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{ |
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$isNew = $tuple->node->getStatus() === Node::NEW; |
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$tuple->state->setStatus($isNew ? Node::SCHEDULED_INSERT : Node::SCHEDULED_UPDATE); |
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$schema = $orm->getSchema(); |
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$commands = $this->storeParents($orm, $tuple, $isNew); |
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$entityCommand = $this->storeEntity($orm, $tuple, $isNew); |
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if ($entityCommand !== null) { |
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$commands[$tuple->node->getRole()] = $entityCommand; |
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} |
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return match (\count($commands)) { |
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0 => null, |
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1 => \current($commands), |
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default => $this->buildStoreSequence($schema, $commands, $tuple) |
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}; |
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} |
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public function generateDeleteCommand(ORMInterface $orm, Tuple $tuple): ?CommandInterface |
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{ |
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// currently we rely on db to delete all nested records (or soft deletes) |
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return $this->deleteEntity($orm, $tuple); |
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} |
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/** |
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* @return array<string, CommandInterface> |
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*/ |
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protected function storeParents(ORMInterface $orm, Tuple $tuple, bool $isNew): array |
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{ |
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$schema = $orm->getSchema(); |
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$parents = $commands = []; |
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$parent = $schema->define($tuple->node->getRole(), SchemaInterface::PARENT); |
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while (is_string($parent)) { |
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\array_unshift($parents, $parent); |
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$parent = $schema->define($parent, SchemaInterface::PARENT); |
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} |
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foreach ($parents as $parent) { |
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$command = $this->generateParentStoreCommand($orm, $tuple, $parent, $isNew); |
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if ($command !== null) { |
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$commands[$parent] = $command; |
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} |
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} |
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return $commands; |
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} |
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protected function storeEntity(ORMInterface $orm, Tuple $tuple, bool $isNew): ?CommandInterface |
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{ |
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return $isNew |
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? $tuple->mapper->queueCreate($tuple->entity, $tuple->node, $tuple->state) |
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: $tuple->mapper->queueUpdate($tuple->entity, $tuple->node, $tuple->state); |
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} |
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protected function deleteEntity(ORMInterface $orm, Tuple $tuple): ?CommandInterface |
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{ |
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return $tuple->mapper->queueDelete($tuple->entity, $tuple->node, $tuple->state); |
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} |
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/** |
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* @param non-empty-string $parentRole |
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*/ |
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protected function generateParentStoreCommand( |
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ORMInterface $orm, |
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Tuple $tuple, |
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string $parentRole, |
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bool $isNew |
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): ?CommandInterface { |
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$parentMapper = $orm->getMapper($parentRole); |
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return $isNew |
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? $parentMapper->queueCreate($tuple->entity, $tuple->node, $tuple->state) |
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: $parentMapper->queueUpdate($tuple->entity, $tuple->node, $tuple->state); |
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} |
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/** |
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* @param array<string, StoreCommandInterface> $commands |
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*/ |
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private function buildStoreSequence(SchemaInterface $schema, array $commands, Tuple $tuple): CommandInterface |
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{ |
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$parent = null; |
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$result = []; |
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foreach ($commands as $role => $command) { |
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// Current parent has no parent |
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if ($parent === null) { |
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$result[] = $command; |
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$parent = $role; |
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continue; |
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} |
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$command = WrappedStoreCommand::wrapStoreCommand($command); |
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// Transact PK from previous parent to current |
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$parentKey = (array)($schema->define($role, SchemaInterface::PARENT_KEY) |
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?? $schema->define($parent, SchemaInterface::PRIMARY_KEY)); |
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$primaryKey = (array)$schema->define($role, SchemaInterface::PRIMARY_KEY); |
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$result[] = $command->withBeforeExecution( |
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static function (StoreCommandInterface $command) use ($tuple, $parentKey, $primaryKey): void { |
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foreach ($primaryKey as $i => $pk) { |
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$command->registerAppendix($pk, $tuple->state->getValue($parentKey[$i])); |
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} |
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} |
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); |
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$parent = $role; |
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} |
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return (new Sequence())->addCommand(...$result); |
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} |
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} |
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cycle /
orm
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