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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Driver\Pgsql;
use Zend\Db\Adapter\Driver\StatementInterface;
use Zend\Db\Adapter\Exception;
use Zend\Db\Adapter\ParameterContainer;
use Zend\Db\Adapter\Profiler;
class Statement implements StatementInterface, Profiler\ProfilerAwareInterface
{
/**
* @var int
*/
protected static $statementIndex = 0;
/**
* @var string
*/
protected $statementName = '';
/**
* @var Pgsql
*/
protected $driver = null;
/**
* @var Profiler\ProfilerInterface
*/
protected $profiler = null;
/**
* @var resource
*/
protected $pgsql = null;
/**
* @var resource
*/
protected $resource = null;
/**
* @var string
*/
protected $sql;
/**
* @var ParameterContainer
*/
protected $parameterContainer;
/**
* @param Pgsql $driver
* @return self Provides a fluent interface
*/
public function setDriver(Pgsql $driver)
{
$this->driver = $driver;
return $this;
}
/**
* @param Profiler\ProfilerInterface $profiler
* @return self Provides a fluent interface
*/
public function setProfiler(Profiler\ProfilerInterface $profiler)
{
$this->profiler = $profiler;
return $this;
}
/**
* @return null|Profiler\ProfilerInterface
*/
public function getProfiler()
{
return $this->profiler;
}
/**
* Initialize
*
* @param resource $pgsql
* @return void
* @throws Exception\RuntimeException for invalid or missing postgresql connection
*/
public function initialize($pgsql)
{
if (! is_resource($pgsql) || get_resource_type($pgsql) !== 'pgsql link') {
throw new Exception\RuntimeException(sprintf(
'%s: Invalid or missing postgresql connection; received "%s"',
__METHOD__,
get_resource_type($pgsql)
));
}
$this->pgsql = $pgsql;
}
/**
* Get resource
*
* @return resource
*/
public function getResource()
{
// TODO: Implement getResource() method.
}
/**
* Set sql
*
* @param string $sql
* @return self Provides a fluent interface
*/
public function setSql($sql)
{
$this->sql = $sql;
return $this;
}
/**
* Get sql
*
* @return string
*/
public function getSql()
{
return $this->sql;
}
/**
* Set parameter container
*
* @param ParameterContainer $parameterContainer
* @return self Provides a fluent interface
*/
public function setParameterContainer(ParameterContainer $parameterContainer)
{
$this->parameterContainer = $parameterContainer;
return $this;
}
/**
* Get parameter container
*
* @return ParameterContainer
*/
public function getParameterContainer()
{
return $this->parameterContainer;
}
/**
* Prepare
*
* @param string $sql
*/
public function prepare($sql = null)
{
$sql = ($sql) ?: $this->sql;
$pCount = 1;
$sql = preg_replace_callback(
'#\$\##',
function () use (&$pCount) {
return '$' . $pCount++;
},
$sql
);
$this->sql = $sql;
$this->statementName = 'statement' . ++static::$statementIndex;
$this->resource = pg_prepare($this->pgsql, $this->statementName, $sql);
}
/**
* Is prepared
*
* @return bool
*/
public function isPrepared()
{
return isset($this->resource);
}
/**
* Execute
*
* @param null|array|ParameterContainer $parameters
* @throws Exception\InvalidQueryException
* @return Result
*/
public function execute($parameters = null)
{
if (! $this->isPrepared()) {
$this->prepare();
}
/** START Standard ParameterContainer Merging Block */
if (! $this->parameterContainer instanceof ParameterContainer) {
if ($parameters instanceof ParameterContainer) {
$this->parameterContainer = $parameters;
$parameters = null;
} else {
$this->parameterContainer = new ParameterContainer();
}
}
if (is_array($parameters)) {
$this->parameterContainer->setFromArray($parameters);
}
if ($this->parameterContainer->count() > 0) {
$parameters = $this->parameterContainer->getPositionalArray();
}
/** END Standard ParameterContainer Merging Block */
if ($this->profiler) {
$this->profiler->profilerStart($this);
}
$resultResource = pg_execute($this->pgsql, $this->statementName, (array) $parameters);
if ($this->profiler) {
$this->profiler->profilerFinish();
}
if ($resultResource === false) {
throw new Exception\InvalidQueryException(pg_last_error());
}
$result = $this->driver->createResult($resultResource);
return $result;
}
}