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<?php
namespace Laminas\Db\Sql\Platform;
use Laminas\Db\Adapter\AdapterInterface;
use Laminas\Db\Adapter\Platform\PlatformInterface;
use Laminas\Db\Adapter\StatementContainerInterface;
use Laminas\Db\Sql\Exception;
use Laminas\Db\Sql\PreparableSqlInterface;
use Laminas\Db\Sql\SqlInterface;
class AbstractPlatform implements PlatformDecoratorInterface, PreparableSqlInterface, SqlInterface
{
/** @var object|null */
protected $subject;
/** @var PlatformDecoratorInterface[] */
protected $decorators = [];
/**
* {@inheritDoc}
*/
public function setSubject($subject)
{
$this->subject = $subject;
return $this;
}
/**
* @param string $type
* @return void
*/
public function setTypeDecorator($type, PlatformDecoratorInterface $decorator)
{
$this->decorators[$type] = $decorator;
}
/**
* @param PreparableSqlInterface|SqlInterface $subject
* @return PlatformDecoratorInterface|PreparableSqlInterface|SqlInterface
*/
public function getTypeDecorator($subject)
{
foreach ($this->decorators as $type => $decorator) {
if ($subject instanceof $type) {
$decorator->setSubject($subject);
return $decorator;
}
}
return $subject;
}
/**
* @return array|PlatformDecoratorInterface[]
*/
public function getDecorators()
{
return $this->decorators;
}
/**
* {@inheritDoc}
*
* @throws Exception\RuntimeException
*/
public function prepareStatement(AdapterInterface $adapter, StatementContainerInterface $statementContainer)
{
if (! $this->subject instanceof PreparableSqlInterface) {
throw new Exception\RuntimeException(
'The subject does not appear to implement Laminas\Db\Sql\PreparableSqlInterface, thus calling '
. 'prepareStatement() has no effect'
);
}
$this->getTypeDecorator($this->subject)->prepareStatement($adapter, $statementContainer);
return $statementContainer;
}
/**
* {@inheritDoc}
*
* @throws Exception\RuntimeException
*/
public function getSqlString(?PlatformInterface $adapterPlatform = null)
{
if (! $this->subject instanceof SqlInterface) {
throw new Exception\RuntimeException(
'The subject does not appear to implement Laminas\Db\Sql\SqlInterface, thus calling '
. 'prepareStatement() has no effect'
);
}
return $this->getTypeDecorator($this->subject)->getSqlString($adapterPlatform);
}
}