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/**
* 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 ZendX
* @package ZendX_Db
* @subpackage Statement
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: $
*/
/**
* @see Zend_Db_Statement
*/
require_once 'Zend/Db/Statement.php';
/**
* Extends for Firebird
*
* @category ZendX
* @package ZendX_Db
* @subpackage Statement
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class ZendX_Db_Statement_Firebird extends Zend_Db_Statement
{
/**
* The firebird_stmtPrepared resource.
*
* @var firebird_stmtPrepared
*/
protected $_stmtPrepared = null;
/**
* The firebird_stmtResult resource.
*
* @var firebird_result
*/
protected $_stmtResult = null;
/**
* The firebird_stmtResult resource.
*
* @var firebird_result
*/
protected $_stmtRowCount = 0;
/**
* The firebird_stmtResult resource.
*
* @var firebird_result
*/
protected $_stmtColumnCount = 0;
/**
* Column names.
*
* @var array
*/
protected $_keys = array();
/**
* Fetched result values.
*
* @var array
*/
protected $_values = array();
/**
* @var array
*/
protected $_meta = null;
/**
* @param string $sql
* @return void
* @throws ZendX_Db_Statement_Firebird_Exception
*/
public function _prepare($sql)
{
$this->_stmtRowCount = 0;
$this->_stmtColumnCount = 0;
$connection = $this->_adapter->getConnection();
if ($trans = $this->_adapter->getTransaction())
$this->_stmtPrepared = @ibase_prepare($connection, $trans, $sql);
else
$this->_stmtPrepared = @ibase_prepare($connection, $sql);
if ($this->_stmtPrepared === false) {
/**
* @see ZendX_Db_Statement_Firebird_Exception
*/
require_once 'ZendX/Db/Statement/Firebird/Exception.php';
throw new ZendX_Db_Statement_Firebird_Exception("Firebird prepare error: " . ibase_errmsg());
}
}
/**
* 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 $options OPTIONAL Other options.
* @return bool
* @throws ZendX_Db_Statement_Firebird_Exception
*/
protected function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
{
return true;
}
/**
* Closes the cursor and the statement.
*
* @return bool
*/
public function close()
{
if ($stmt = $this->_stmtResult) {
@ibase_free_result($this->_stmtResult);
$this->_stmtResult = null;
}
if ($this->_stmtPrepared) {
$r = @ibase_free_query($this->_stmtPrepared);
$this->_stmtPrepared = null;
return $r;
}
return false;
}
/**
* Closes the cursor, allowing the statement to be executed again.
*
* @return bool
*/
public function closeCursor()
{
if ($stmt = $this->_stmtResult) {
return @ibase_free_result($this->_stmtResult);
}
return false;
}
/**
* 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()
{
return $this->_stmtColumnCount ? $this->_stmtColumnCount : 0;
}
/**
* Retrieves the error code, if any, associated with the last operation on
* the statement handle.
*
* @return string error code.
*/
public function errorCode()
{
if ($this->_stmtPrepared || $this->_stmtResult) {
return ibase_errcode();
}
return false;
}
/**
* Retrieves an array of error information, if any, associated with the
* last operation on the statement handle.
*
* @return array
*/
public function errorInfo()
{
if (!$this->_stmtPrepared) {
return false;
}
return array(
ibase_errcode(),
ibase_errmsg()
);
}
/**
* Executes a prepared statement.
*
* @param array $params OPTIONAL Values to bind to parameter placeholders.
* @return bool
* @throws ZendX_Db_Statement_Firebird_Exception
*/
public function _execute(array $params = null)
{
if (!$this->_stmtPrepared) {
return false;
}
// 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) {
array_unshift($params, $this->_stmtPrepared);
$retval = @call_user_func_array(
'ibase_execute',
$params
);
} else
// execute the statement
$retval = @ibase_execute($this->_stmtPrepared);
$this->_stmtResult = $retval;
if ($retval === false) {
$last_error = ibase_errmsg();
$this->_stmtRowCount = 0;
}
//Firebird php ibase extension, auto-commit is not after each call, but at
//end of script. Disabled when transaction is active
if (!$this->_adapter->getTransaction())
ibase_commit_ret();
if ($retval === false) {
/**
* @see ZendX_Db_Statement_Firebird_Exception
*/
require_once 'ZendX/Db/Statement/Firebird/Exception.php';
throw new ZendX_Db_Statement_Firebird_Exception("Firebird statement execute error : " . $last_error);
}
// statements that have no result set do not return metadata
if (is_resource($this->_stmtResult)) {
// get the column names that will result
$this->_keys = array();
$coln = ibase_num_fields($this->_stmtResult);
$this->_stmtColumnCount = $coln;
for ($i = 0; $i < $coln; $i++) {
$col_info = ibase_field_info($this->_stmtResult, $i);
$this->_keys[] = $this->_adapter->foldCase($col_info['name']);
}
// set up a binding space for result variables
$this->_values = array_fill(0, count($this->_keys), null);
// set up references to the result binding space.
// just passing $this->_values in the call_user_func_array()
// below won't work, you need references.
$refs = array();
foreach ($this->_values as $i => &$f) {
$refs[$i] = &$f;
}
}
if ($trans = $this->_adapter->getTransaction())
$this->_stmtRowCount = ibase_affected_rows($trans);
else
$this->_stmtRowCount = ibase_affected_rows($this->_adapter->getConnection());
return true;
}
/**
* 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, $offset = null)
{
if (!$this->_stmtResult) {
return false;
}
if ($style === null) {
$style = $this->_fetchMode;
}
switch ($style) {
case Zend_Db::FETCH_NUM:
$row = ibase_fetch_row($this->_stmtResult, IBASE_TEXT);
break;
case Zend_Db::FETCH_ASSOC:
$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
break;
case Zend_Db::FETCH_BOTH:
$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
if ($row !== false)
$row = array_merge($row, array_values($row));
break;
case Zend_Db::FETCH_OBJ:
$row = ibase_fetch_object($this->_stmtResult, IBASE_TEXT);
break;
case Zend_Db::FETCH_BOUND:
$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
if ($row !== false){
$row = array_merge($row, array_values($row));
$row = $this->_fetchBound($row);
}
break;
default:
/**
* @see ZendX_Db_Adapter_Firebird_Exception
*/
require_once 'ZendX/Db/Statement/Firebird/Exception.php';
throw new ZendX_Db_Statement_Firebird_Exception(
"Invalid fetch mode '$style' specified"
);
break;
}
return $row;
}
/**
* 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 ZendX_Db_Statement_Firebird_Exception
*/
public function nextRowset()
{
/**
* @see ZendX_Db_Statement_Firebird_Exception
*/
require_once 'ZendX/Db/Statement/Firebird/Exception.php';
throw new ZendX_Db_Statement_Firebird_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.
* @throws Zend_Db_Statement_Exception
*/
public function rowCount()
{
return $this->_stmtRowCount ? $this->_stmtRowCount : 0;
}
}
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