Fwk\Db\Workers\DeleteEntityWorker::execute()

Complexity

Conditions	14
Paths	24

Size

Total Lines	92
Code Lines	61

Duplication

Lines	0
Ratio	0 %

Importance

Changes	13
Bugs	5	Features	0

<?php
    public function execute(Connection $connection)
    {
        $registry   = $this->getRegistry();
        $entry      = $registry->getEntry($this->entity);
        if (false === $entry) {
            throw new UnregisteredEntityException('Unregistered entity: '. get_class($this->entity));
        }

        $state      = $entry->getState();
        $table      = $connection->table($registry->getTableName());
        $query      = Query::factory();
        $queryParams = array();
        $access     = new Accessor($this->entity);
        $tableRegistry = $connection->table($registry->getTableName())->getRegistry();

        if (in_array($this->entity, self::$working, true)) {
            return;
        }

        if ($tableRegistry !== $registry && $tableRegistry->contains($this->entity)) {
            $state = $tableRegistry->getState($this->entity);
        }

        switch ($state) {
        case RegistryState::UNKNOWN:
            throw new \LogicException(sprintf('Entity is in unknown state (%s)', get_class($this->entity)));

        case RegistryState::REGISTERED:
            return;

        case RegistryState::FRESH:
        case RegistryState::CHANGED:
            array_push(self::$working, $this->entity);
            $registry->fireEvent(
                $this->entity, new BeforeDeleteEvent(
                    $connection,
                    $table,
                    $this->entity
                )
            );

            $changed    = $registry->getChangedValues($this->entity);
            $query->delete($table->getName())->where('1 = 1');
            $ids        = $entry->getIdentifiers();
            $idKeys     = $table->getIdentifiersKeys();

            if (!count($ids)) {
                static::removeFromWorking($this->entity);
                throw new \LogicException(
                    sprintf('Entity %s lacks identifiers and cannot be deleted.', get_class($this->entity))
                );
            }
            
            foreach ($changed as $key => $value) {
                if (\array_key_exists($key, $ids)) {
                    static::removeFromWorking($this->entity);
                    throw new \LogicException(
                        sprintf(
                            'Unable to delete entity because identifiers (%s) have been modified',
                            implode(', ', $ids)
                        )
                    );
                }
            }

            foreach ($idKeys as $key) {
                $query->andWhere(sprintf('`%s` = ?', $key));
                $value = $access->get($key);
                if (!$value) {
                    static::removeFromWorking($this->entity);
                    throw new \RuntimeException(
                        sprintf(
                            'Cannot delete entity object (%s) because it '. 
                            'lacks identifier (%s)', 
                            get_class($this->entity), 
                            $key
                        )
                    );
                }
                $queryParams[] = $value;
            }

            break;
        }

        $connection->execute($query, $queryParams);
        $registry->fireEvent(
            $this->entity, new AfterDeleteEvent($connection, $table, $this->entity)
        );
        $registry->remove($this->entity);
        static::removeFromWorking($this->entity);
    }
}