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<?php
namespace {
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* 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 license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Db
* @subpackage Statement
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Db2.php 23775 2011-03-01 17:25:24Z ralph $
*/
/**
* @see Zend_Db_Statement
*/
// require_once 'Zend/Db/Statement.php';
/**
* Extends for DB2 native adapter.
*
* @package Zend_Db
* @subpackage Statement
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Db_Statement_Db2 extends \Zend_Db_Statement
{
/**
* Column names.
*/
protected $_keys;
/**
* Fetched result values.
*/
protected $_values;
/**
* Prepare a statement handle.
*
* @param string $sql
* @return void
* @throws Zend_Db_Statement_Db2_Exception
*/
public function _prepare($sql)
{
$connection = $this->_adapter->getConnection();
// db2_prepare on i5 emits errors, these need to be
// suppressed so that proper exceptions can be thrown
$this->_stmt = @\db2_prepare($connection, $sql);
if (!$this->_stmt) {
/**
* @see Zend_Db_Statement_Db2_Exception
*/
// require_once 'Zend/Db/Statement/Db2/Exception.php';
throw new \Zend_Db_Statement_Db2_Exception(\db2_stmt_errormsg(), \db2_stmt_error());
}
}
/**
* 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 $options OPTIONAL Other options.
* @return bool
* @throws Zend_Db_Statement_Db2_Exception
*/
public function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
{
if ($type === null) {
$type = \DB2_PARAM_IN;
}
if (isset($options['data-type'])) {
$datatype = $options['data-type'];
} else {
$datatype = \DB2_CHAR;
}
if (!\db2_bind_param($this->_stmt, $position, "variable", $type, $datatype)) {
/**
* @see Zend_Db_Statement_Db2_Exception
*/
// require_once 'Zend/Db/Statement/Db2/Exception.php';
throw new \Zend_Db_Statement_Db2_Exception(\db2_stmt_errormsg(), \db2_stmt_error());
}
return \true;
}
/**
* Closes the cursor, allowing the statement to be executed again.
*
* @return bool
*/
public function closeCursor()
{
if (!$this->_stmt) {
return \false;
}
\db2_free_stmt($this->_stmt);
$this->_stmt = \false;
return \true;
}
/**
* Returns the number of columns in the result set.
* Returns null if the statement has no result set metadata.
*
* @return int The number of columns.
*/
public function columnCount()
{
if (!$this->_stmt) {
return \false;
}
return \db2_num_fields($this->_stmt);
}
/**
* Retrieves the error code, if any, associated with the last operation on
* the statement handle.
*
* @return string error code.
*/
public function errorCode()
{
if (!$this->_stmt) {
return \false;
}
$error = \db2_stmt_error();
if ($error === '') {
return \false;
}
return $error;
}
/**
* Retrieves an array of error information, if any, associated with the
* last operation on the statement handle.
*
* @return array
*/
public function errorInfo()
{
$error = $this->errorCode();
if ($error === \false) {
return \false;
}
/*
* Return three-valued array like PDO. But DB2 does not distinguish
* between SQLCODE and native RDBMS error code, so repeat the SQLCODE.
*/
return array($error, $error, \db2_stmt_errormsg());
}
/**
* Executes a prepared statement.
*
* @param array $params OPTIONAL Values to bind to parameter placeholders.
* @return bool
* @throws Zend_Db_Statement_Db2_Exception
*/
public function _execute(array $params = null)
{
if (!$this->_stmt) {
return \false;
}
$retval = \true;
if ($params !== null) {
$retval = @\db2_execute($this->_stmt, $params);
} else {
$retval = @\db2_execute($this->_stmt);
}
if ($retval === \false) {
/**
* @see Zend_Db_Statement_Db2_Exception
*/
// require_once 'Zend/Db/Statement/Db2/Exception.php';
throw new \Zend_Db_Statement_Db2_Exception(\db2_stmt_errormsg(), \db2_stmt_error());
}
$this->_keys = array();
if ($field_num = $this->columnCount()) {
for ($i = 0; $i < $field_num; $i++) {
$name = \db2_field_name($this->_stmt, $i);
$this->_keys[] = $name;
}
}
$this->_values = array();
if ($this->_keys) {
$this->_values = \array_fill(0, \count($this->_keys), null);
}
return $retval;
}
/**
* 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 $offset OPTIONAL Number for absolute or relative cursors.
* @return mixed Array, object, or scalar depending on fetch mode.
* @throws Zend_Db_Statement_Db2_Exception
*/
public function fetch($style = null, $cursor = null, $offset = null)
{
if (!$this->_stmt) {
return \false;
}
if ($style === null) {
$style = $this->_fetchMode;
}
switch ($style) {
case \Zend_Db::FETCH_NUM:
$row = \db2_fetch_array($this->_stmt);
break;
case \Zend_Db::FETCH_ASSOC:
$row = \db2_fetch_assoc($this->_stmt);
break;
case \Zend_Db::FETCH_BOTH:
$row = \db2_fetch_both($this->_stmt);
break;
case \Zend_Db::FETCH_OBJ:
$row = \db2_fetch_object($this->_stmt);
break;
case \Zend_Db::FETCH_BOUND:
$row = \db2_fetch_both($this->_stmt);
if ($row !== \false) {
return $this->_fetchBound($row);
}
break;
default:
/**
* @see Zend_Db_Statement_Db2_Exception
*/
// require_once 'Zend/Db/Statement/Db2/Exception.php';
throw new \Zend_Db_Statement_Db2_Exception("Invalid fetch mode '{$style}' specified");
break;
}
return $row;
}
/**
* Fetches the next row and returns it as an object.
*
* @param string $class OPTIONAL Name of the class to create.
* @param array $config OPTIONAL Constructor arguments for the class.
* @return mixed One object instance of the specified class.
*/
public function fetchObject($class = 'stdClass', array $config = array())
{
$obj = $this->fetch(\Zend_Db::FETCH_OBJ);
return $obj;
}
/**
* Retrieves the next rowset (result set) for a SQL statement that has
* multiple result sets. An example is a stored procedure that returns
* the results of multiple queries.
*
* @return bool
* @throws Zend_Db_Statement_Db2_Exception
*/
public function nextRowset()
{
/**
* @see Zend_Db_Statement_Db2_Exception
*/
// require_once 'Zend/Db/Statement/Db2/Exception.php';
throw new \Zend_Db_Statement_Db2_Exception(__FUNCTION__ . '() is not implemented');
}
/**
* Returns the number of rows affected by the execution of the
* last INSERT, DELETE, or UPDATE statement executed by this
* statement object.
*
* @return int The number of rows affected.
*/
public function rowCount()
{
if (!$this->_stmt) {
return \false;
}
$num = @\db2_num_rows($this->_stmt);
if ($num === \false) {
return 0;
}
return $num;
}
/**
* Returns an array containing all of the result set rows.
*
* @param int $style OPTIONAL Fetch mode.
* @param int $col OPTIONAL Column number, if fetch mode is by column.
* @return array Collection of rows, each in a format by the fetch mode.
*
* Behaves like parent, but if limit()
* is used, the final result removes the extra column
* 'zend_db_rownum'
*/
public function fetchAll($style = null, $col = null)
{
$data = parent::fetchAll($style, $col);
$results = array();
$remove = $this->_adapter->foldCase('ZEND_DB_ROWNUM');
foreach ($data as $row) {
if (\is_array($row) && \array_key_exists($remove, $row)) {
unset($row[$remove]);
}
$results[] = $row;
}
return $results;
}
}
}