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An open source application development framework for PHP
This content is released under the MIT License (MIT)
Copyright (c) 2014-2019 British Columbia Institute of Technology Copyright (c) 2019 CodeIgniter Foundation
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
PreparedQuery | Prepared query for Postgre |
<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2014-2019 British Columbia Institute of Technology
* Copyright (c) 2019 CodeIgniter Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author CodeIgniter Dev Team
* @copyright 2019 CodeIgniter Foundation
* @license https://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com
* @since Version 4.0.0
* @filesource
*/
namespace CodeIgniter\Database\Postgre;
use CodeIgniter\Database\PreparedQueryInterface;
use CodeIgniter\Database\BasePreparedQuery;
/**
* Prepared query for Postgre
*/
class PreparedQuery extends BasePreparedQuery implements PreparedQueryInterface
{
/**
* Stores the name this query can be
* used under by postgres. Only used internally.
*
* @var string
*/
protected $name;
/**
* The result resource from a successful
* pg_exec. Or false.
*
* @var
*/
protected $result;
//--------------------------------------------------------------------
/**
* Prepares the query against the database, and saves the connection
* info necessary to execute the query later.
*
* NOTE: This version is based on SQL code. Child classes should
* override this method.
*
* @param string $sql
* @param array $options Passed to the connection's prepare statement.
* Unused in the MySQLi driver.
*
* @return mixed
* @throws \Exception
*/
public function _prepare(string $sql, array $options = [])
{
$this->name = random_int(1, 10000000000000000);
$sql = $this->parameterize($sql);
// Update the query object since the parameters are slightly different
// than what was put in.
$this->query->setQuery($sql);
if (! $this->statement = pg_prepare($this->db->connID, $this->name, $sql))
{
$this->errorCode = 0;
$this->errorString = pg_last_error($this->db->connID);
}
return $this;
}
//--------------------------------------------------------------------
/**
* Takes a new set of data and runs it against the currently
* prepared query. Upon success, will return a Results object.
*
* @param array $data
*
* @return boolean
*/
public function _execute(array $data): bool
{
if (is_null($this->statement))
{
throw new \BadMethodCallException('You must call prepare before trying to execute a prepared statement.');
}
$this->result = pg_execute($this->db->connID, $this->name, $data);
return (bool) $this->result;
}
//--------------------------------------------------------------------
/**
* Returns the result object for the prepared query.
*
* @return mixed
*/
public function _getResult()
{
return $this->result;
}
//--------------------------------------------------------------------
/**
* Replaces the ? placeholders with $1, $2, etc parameters for use
* within the prepared query.
*
* @param string $sql
*
* @return string
*/
public function parameterize(string $sql): string
{
// Track our current value
$count = 0;
$sql = preg_replace_callback('/\?/', function ($matches) use (&$count) {
$count ++;
return "\${$count}";
}, $sql);
return $sql;
}
//--------------------------------------------------------------------
}