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<?php
namespace Laminas\Db\Adapter\Driver\Pgsql;
use Laminas\Db\Adapter\Driver\DriverInterface;
use Laminas\Db\Adapter\Exception;
use Laminas\Db\Adapter\Profiler;
use function extension_loaded;
use function is_string;
class Pgsql implements DriverInterface, Profiler\ProfilerAwareInterface
{
/** @var Connection */
protected $connection;
/** @var Statement */
protected $statementPrototype;
/** @var Result */
protected $resultPrototype;
/** @var null|Profiler\ProfilerInterface */
protected $profiler;
/** @var array */
protected $options = [
'buffer_results' => false,
];
/**
* Constructor
*
* @param array|Connection|resource $connection
* @param array $options
*/
public function __construct(
$connection,
?Statement $statementPrototype = null,
?Result $resultPrototype = null,
$options = null
) {
if (! $connection instanceof Connection) {
$connection = new Connection($connection);
}
$this->registerConnection($connection);
$this->registerStatementPrototype($statementPrototype ?: new Statement());
$this->registerResultPrototype($resultPrototype ?: new Result());
}
/**
* @return $this Provides a fluent interface
*/
public function setProfiler(Profiler\ProfilerInterface $profiler)
{
$this->profiler = $profiler;
if ($this->connection instanceof Profiler\ProfilerAwareInterface) {
$this->connection->setProfiler($profiler);
}
if ($this->statementPrototype instanceof Profiler\ProfilerAwareInterface) {
$this->statementPrototype->setProfiler($profiler);
}
return $this;
}
/**
* @return null|Profiler\ProfilerInterface
*/
public function getProfiler()
{
return $this->profiler;
}
/**
* Register connection
*
* @return $this Provides a fluent interface
*/
public function registerConnection(Connection $connection)
{
$this->connection = $connection;
$this->connection->setDriver($this);
return $this;
}
/**
* Register statement prototype
*
* @return $this Provides a fluent interface
*/
public function registerStatementPrototype(Statement $statement)
{
$this->statementPrototype = $statement;
$this->statementPrototype->setDriver($this); // needs access to driver to createResult()
return $this;
}
/**
* Register result prototype
*
* @return $this Provides a fluent interface
*/
public function registerResultPrototype(Result $result)
{
$this->resultPrototype = $result;
return $this;
}
/**
* Get database platform name
*
* @param string $nameFormat
* @return string
*/
public function getDatabasePlatformName($nameFormat = self::NAME_FORMAT_CAMELCASE)
{
if ($nameFormat === self::NAME_FORMAT_CAMELCASE) {
return 'Postgresql';
}
return 'PostgreSQL';
}
/**
* Check environment
*
* @throws Exception\RuntimeException
* @return void
*/
public function checkEnvironment()
{
if (! extension_loaded('pgsql')) {
throw new Exception\RuntimeException(
'The PostgreSQL (pgsql) extension is required for this adapter but the extension is not loaded'
);
}
}
/**
* Get connection
*
* @return Connection
*/
public function getConnection()
{
return $this->connection;
}
/**
* Create statement
*
* @param string|null $sqlOrResource
* @return Statement
*/
public function createStatement($sqlOrResource = null)
{
$statement = clone $this->statementPrototype;
if (is_string($sqlOrResource)) {
$statement->setSql($sqlOrResource);
}
if (! $this->connection->isConnected()) {
$this->connection->connect();
}
$statement->initialize($this->connection->getResource());
return $statement;
}
/**
* Create result
*
* @param resource $resource
* @return Result
*/
public function createResult($resource)
{
$result = clone $this->resultPrototype;
$result->initialize($resource, $this->connection->getLastGeneratedValue());
return $result;
}
/**
* @return Result
*/
public function getResultPrototype()
{
return $this->resultPrototype;
}
/**
* Get prepare Type
*
* @return string
*/
public function getPrepareType()
{
return self::PARAMETERIZATION_POSITIONAL;
}
/**
* Format parameter name
*
* @param string $name
* @param mixed $type
* @return string
*/
public function formatParameterName($name, $type = null)
{
return '$#';
}
/**
* Get last generated value
*
* @param string $name
* @return mixed
*/
public function getLastGeneratedValue($name = null)
{
return $this->connection->getLastGeneratedValue($name);
}
}