370 lines
11 KiB
PHP
370 lines
11 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category ZendX
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* @package ZendX_Db
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* @subpackage Statement
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: $
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*/
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/**
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* @see Zend_Db_Statement
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*/
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require_once 'Zend/Db/Statement.php';
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/**
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* Extends for Firebird
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*
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* @category ZendX
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* @package ZendX_Db
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* @subpackage Statement
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class ZendX_Db_Statement_Firebird extends Zend_Db_Statement
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{
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/**
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* The firebird_stmtPrepared resource.
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*
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* @var firebird_stmtPrepared
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*/
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protected $_stmtPrepared = null;
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/**
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* The firebird_stmtResult resource.
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*
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* @var firebird_result
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*/
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protected $_stmtResult = null;
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/**
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* The firebird_stmtResult resource.
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*
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* @var firebird_result
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*/
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protected $_stmtRowCount = 0;
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/**
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* The firebird_stmtResult resource.
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*
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* @var firebird_result
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*/
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protected $_stmtColumnCount = 0;
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/**
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* Column names.
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*
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* @var array
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*/
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protected $_keys = array();
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/**
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* Fetched result values.
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*
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* @var array
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*/
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protected $_values = array();
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/**
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* @var array
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*/
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protected $_meta = null;
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/**
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* @param string $sql
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* @return void
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* @throws ZendX_Db_Statement_Firebird_Exception
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*/
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public function _prepare($sql)
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{
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$this->_stmtRowCount = 0;
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$this->_stmtColumnCount = 0;
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$connection = $this->_adapter->getConnection();
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if ($trans = $this->_adapter->getTransaction())
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$this->_stmtPrepared = @ibase_prepare($connection, $trans, $sql);
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else
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$this->_stmtPrepared = @ibase_prepare($connection, $sql);
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if ($this->_stmtPrepared === false) {
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/**
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* @see ZendX_Db_Statement_Firebird_Exception
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*/
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require_once 'ZendX/Db/Statement/Firebird/Exception.php';
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throw new ZendX_Db_Statement_Firebird_Exception("Firebird prepare error: " . ibase_errmsg());
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}
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}
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/**
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* Binds a parameter to the specified variable name.
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*
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* @param mixed $parameter Name the parameter, either integer or string.
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* @param mixed $variable Reference to PHP variable containing the value.
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* @param mixed $type OPTIONAL Datatype of SQL parameter.
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* @param mixed $length OPTIONAL Length of SQL parameter.
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* @param mixed $options OPTIONAL Other options.
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* @return bool
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* @throws ZendX_Db_Statement_Firebird_Exception
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*/
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protected function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
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{
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return true;
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}
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/**
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* Closes the cursor and the statement.
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*
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* @return bool
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*/
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public function close()
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{
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if ($stmt = $this->_stmtResult) {
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@ibase_free_result($this->_stmtResult);
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$this->_stmtResult = null;
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}
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if ($this->_stmtPrepared) {
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$r = @ibase_free_query($this->_stmtPrepared);
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$this->_stmtPrepared = null;
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return $r;
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}
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return false;
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}
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/**
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* Closes the cursor, allowing the statement to be executed again.
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*
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* @return bool
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*/
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public function closeCursor()
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{
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if ($stmt = $this->_stmtResult) {
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return @ibase_free_result($this->_stmtResult);
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}
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return false;
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}
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/**
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* Returns the number of columns in the result set.
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* Returns null if the statement has no result set metadata.
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*
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* @return int The number of columns.
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*/
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public function columnCount()
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{
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return $this->_stmtColumnCount ? $this->_stmtColumnCount : 0;
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}
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/**
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* Retrieves the error code, if any, associated with the last operation on
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* the statement handle.
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*
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* @return string error code.
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*/
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public function errorCode()
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{
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if ($this->_stmtPrepared || $this->_stmtResult) {
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return ibase_errcode();
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}
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return false;
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}
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/**
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* Retrieves an array of error information, if any, associated with the
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* last operation on the statement handle.
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*
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* @return array
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*/
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public function errorInfo()
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{
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if (!$this->_stmtPrepared) {
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return false;
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}
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return array(
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ibase_errcode(),
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ibase_errmsg()
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);
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}
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/**
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* Executes a prepared statement.
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*
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* @param array $params OPTIONAL Values to bind to parameter placeholders.
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* @return bool
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* @throws ZendX_Db_Statement_Firebird_Exception
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*/
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public function _execute(array $params = null)
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{
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if (!$this->_stmtPrepared) {
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return false;
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}
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// if no params were given as an argument to execute(),
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// then default to the _bindParam array
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if ($params === null) {
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$params = $this->_bindParam;
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}
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// send $params as input parameters to the statement
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if ($params) {
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array_unshift($params, $this->_stmtPrepared);
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$retval = @call_user_func_array(
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'ibase_execute',
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$params
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);
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} else
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// execute the statement
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$retval = @ibase_execute($this->_stmtPrepared);
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$this->_stmtResult = $retval;
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if ($retval === false) {
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$last_error = ibase_errmsg();
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$this->_stmtRowCount = 0;
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}
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//Firebird php ibase extension, auto-commit is not after each call, but at
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//end of script. Disabled when transaction is active
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if (!$this->_adapter->getTransaction())
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ibase_commit_ret();
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if ($retval === false) {
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/**
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* @see ZendX_Db_Statement_Firebird_Exception
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*/
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require_once 'ZendX/Db/Statement/Firebird/Exception.php';
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throw new ZendX_Db_Statement_Firebird_Exception("Firebird statement execute error : " . $last_error);
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}
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// statements that have no result set do not return metadata
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if (is_resource($this->_stmtResult)) {
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// get the column names that will result
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$this->_keys = array();
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$coln = ibase_num_fields($this->_stmtResult);
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$this->_stmtColumnCount = $coln;
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for ($i = 0; $i < $coln; $i++) {
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$col_info = ibase_field_info($this->_stmtResult, $i);
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$this->_keys[] = $this->_adapter->foldCase($col_info['name']);
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}
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// set up a binding space for result variables
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$this->_values = array_fill(0, count($this->_keys), null);
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// set up references to the result binding space.
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// just passing $this->_values in the call_user_func_array()
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// below won't work, you need references.
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$refs = array();
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foreach ($this->_values as $i => &$f) {
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$refs[$i] = &$f;
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}
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}
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if ($trans = $this->_adapter->getTransaction())
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$this->_stmtRowCount = ibase_affected_rows($trans);
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else
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$this->_stmtRowCount = ibase_affected_rows($this->_adapter->getConnection());
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return true;
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}
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/**
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* Fetches a row from the result set.
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*
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* @param int $style OPTIONAL Fetch mode for this fetch operation.
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* @param int $cursor OPTIONAL Absolute, relative, or other.
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* @param int $offset OPTIONAL Number for absolute or relative cursors.
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* @return mixed Array, object, or scalar depending on fetch mode.
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* @throws Zend_Db_Statement_Exception
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*/
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public function fetch($style = null, $cursor = null, $offset = null)
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{
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if (!$this->_stmtResult) {
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return false;
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}
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if ($style === null) {
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$style = $this->_fetchMode;
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}
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switch ($style) {
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case Zend_Db::FETCH_NUM:
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$row = ibase_fetch_row($this->_stmtResult, IBASE_TEXT);
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break;
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case Zend_Db::FETCH_ASSOC:
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$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
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break;
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case Zend_Db::FETCH_BOTH:
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$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
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if ($row !== false)
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$row = array_merge($row, array_values($row));
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break;
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case Zend_Db::FETCH_OBJ:
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$row = ibase_fetch_object($this->_stmtResult, IBASE_TEXT);
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break;
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case Zend_Db::FETCH_BOUND:
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$row = ibase_fetch_assoc($this->_stmtResult, IBASE_TEXT);
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if ($row !== false){
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$row = array_merge($row, array_values($row));
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$row = $this->_fetchBound($row);
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}
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break;
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default:
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/**
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* @see ZendX_Db_Adapter_Firebird_Exception
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*/
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require_once 'ZendX/Db/Statement/Firebird/Exception.php';
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throw new ZendX_Db_Statement_Firebird_Exception(
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"Invalid fetch mode '$style' specified"
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);
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break;
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}
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return $row;
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}
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/**
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* Retrieves the next rowset (result set) for a SQL statement that has
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* multiple result sets. An example is a stored procedure that returns
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* the results of multiple queries.
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*
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* @return bool
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* @throws ZendX_Db_Statement_Firebird_Exception
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*/
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public function nextRowset()
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{
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/**
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* @see ZendX_Db_Statement_Firebird_Exception
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*/
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require_once 'ZendX/Db/Statement/Firebird/Exception.php';
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throw new ZendX_Db_Statement_Firebird_Exception(__FUNCTION__.'() is not implemented');
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}
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/**
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* Returns the number of rows affected by the execution of the
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* last INSERT, DELETE, or UPDATE statement executed by this
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* statement object.
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*
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* @return int The number of rows affected.
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* @throws Zend_Db_Statement_Exception
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*/
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public function rowCount()
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{
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return $this->_stmtRowCount ? $this->_stmtRowCount : 0;
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}
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}
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