File size: 6.67Kb
<?php
/**
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.
*
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to kontakt@beberlei.de so we can send you a copy immediately.
*
* @author Benjamin Eberlei (kontakt@beberlei.de)
* @copyright Copyright (c) 2009 Benjamin Eberlei
* @link http://github.com/beberlei/Zend_Db-Adapter-for-ext-mysql
* @license New BSD License
* @package Engine
* @subpackage Db
*/
/**
* @see Zend_Db_Statement
*/
//require_once "Zend/Db/Statement.php";
/**
* @package Engine
* @subpackage Db
*/
class Engine_Db_Statement_Mysql extends Zend_Db_Statement
{
/**
* @var resource
*/
protected $_stmt;
/**
* @var string
*/
protected $_preparedSql;
/**
* Prepares statement handle
*
* @param string $sql
* @return void
* @throws Zend_Db_Statement_Oracle_Exception
*/
protected function _prepare($sql)
{
$this->_preparedSql = $sql;
}
/**
* @param array $params
*/
protected function _execute(array $params = null)
{
$sql = str_replace('?', '%s', $this->_preparedSql);
// if no params were given as an argument to execute(),
// then default to the _bindParam array
if ($params === null) {
$params = $this->_bindParam;
}
// send $params as input parameters to the statement
if ($params) {
$newParams = array();
foreach($params AS $k => $v) {
$newParams[$k] = $this->_adapter->quote($v);
}
array_unshift($newParams, $sql);
$sql = call_user_func_array('sprintf', $newParams);
unset($newParams);
}
$this->_stmt = mysql_query($sql, $this->_adapter->getConnection());
if($this->_stmt === false) {
$this->_throwException();
}
return true;
}
/**
* Binds a parameter to the specified variable name.
*
* @param mixed $parameter Name the parameter, either integer or string.
* @param mixed $variable Reference to PHP variable containing the value.
* @param mixed $type OPTIONAL Datatype of SQL parameter.
* @param mixed $length OPTIONAL Length of SQL parameter.
* @param mixed $options OPTIONAL Other options.
* @return bool
* @throws Zend_Db_Statement_Mysqli_Exception
*/
protected function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
{
return true;
}
/**
* Retrieves the error code, if any, associated with the last operation on
* the statement handle.
*
* @return string error code.
*/
public function errorCode()
{
return mysql_errno($this->_adapter->getConnection());
}
/**
* Retrieves an array of error information, if any, associated with the
* last operation on the statement handle.
*
* @return array
*/
public function errorInfo()
{
return array(
$this->errorCode(),
$this->errorMessage()
);
}
private function errorMessage()
{
return mysql_error($this->_adapter->getConnection());
}
private function _throwException($message=null)
{
require_once 'Zend/Db/Statement/Exception.php';
if($message === null) {
$message = $this->errorMessage()." (".$this->errorCode().")";
}
throw new Zend_Db_Statement_Exception($message);
}
/**
* Retrieves the next rowset (result set) for a SQL statement that has
* multiple result sets. An example is a stored procedure that returns
* the results of multiple queries.
*
* @return bool
* @throws Zend_Db_Statement_Exception
*/
public function nextRowset()
{
$this->_throwException("nextRowset() is not implemented");
}
/**
* Returns the number of rows affected by the execution of the
* last INSERT, DELETE, or UPDATE statement executed by this
* statement object.
*
* @return int The number of rows affected.
* @throws Zend_Db_Statement_Exception
*/
public function rowCount()
{
if($this->_stmt == true) {
return mysql_affected_rows($this->_adapter->getConnection());
} else if($this->_stmt == null) {
return -1;
} else {
return mysql_num_rows($this->_stmt);
}
}
/**
* Fetches a row from the result set.
*
* @param int $style OPTIONAL Fetch mode for this fetch operation.
* @param int $cursor OPTIONAL Absolute, relative, or other.
* @param int $offset OPTIONAL Number for absolute or relative cursors.
* @return mixed Array, object, or scalar depending on fetch mode.
* @throws Zend_Db_Statement_Exception
*/
public function fetch($style = null, $cursor = null, $offset = null)
{
// make sure we have a fetch mode
if ($style === null) {
$style = $this->_fetchMode;
}
$row = false;
switch ($style) {
case Zend_Db::FETCH_NUM:
$row = mysql_fetch_row($this->_stmt);
break;
case Zend_Db::FETCH_ASSOC:
$row = mysql_fetch_assoc($this->_stmt);
break;
case Zend_Db::FETCH_BOTH:
$row = mysql_fetch_array($this->_stmt);
break;
case Zend_Db::FETCH_OBJ:
$row = mysql_fetch_object($this->_stmt);
break;
case Zend_Db::FETCH_BOUND:
$row = $this->_fetchBound(mysql_fetch_array($this->_stmt));
break;
default:
$this->_throwException("Fetch Style '".$style."' not supported!");
break;
}
return $row;
}
/**
* Closes the cursor, allowing the statement to be executed again.
*
* @return bool
* @throws Zend_Db_Statement_Exception
*/
public function closeCursor()
{
if(is_resource($this->_stmt)) {
mysql_free_result($this->_stmt);
}
$this->_stmt = null;
return true;
}
/**
* Returns the number of columns in the result set.
* Returns null if the statement has no result set metadata.
*
* @return int The number of columns.
* @throws Zend_Db_Statement_Exception
*/
public function columnCount()
{
if(is_resource($this->_stmt)) {
return mysql_num_fields($this->_stmt);
} else {
return 0;
}
}
}