DB2Statement.php

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<?php
/*
 *  $Id$
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.doctrine-project.org>.
*/
 
namespace Doctrine\DBAL\Driver\IBMDB2;
 
class DB2Statement implements \Doctrine\DBAL\Driver\Statement
{
    private $_stmt = null;
 
    private $_bindParam = array();
 
    static private $_typeMap = array(
        \PDO::PARAM_INT => DB2_LONG,
        \PDO::PARAM_STR => DB2_CHAR,
    );
 
    public function __construct($stmt)
    {
        $this->_stmt = $stmt;
    }
 
    function bindValue($param, $value, $type = null)
    {
        return $this->bindParam($param, $value, $type);
    }
 
    function bindParam($column, &$variable, $type = null)
    {
        $this->_bindParam[$column] =& $variable;
 
        if ($type && isset(self::$_typeMap[$type])) {
            $type = self::$_typeMap[$type];
        } else {
            $type = DB2_CHAR;
        }
 
        if (!db2_bind_param($this->_stmt, $column, "variable", DB2_PARAM_IN, $type)) {
            throw new DB2Exception(db2_stmt_errormsg());
        }
        return true;
    }
 
    function closeCursor()
    {
        if (!$this->_stmt) {
            return false;
        }
 
        $this->_bindParam = array();
        db2_free_result($this->_stmt);
        $ret = db2_free_stmt($this->_stmt);
        $this->_stmt = false;
        return $ret;
    }
 
    function columnCount()
    {
        if (!$this->_stmt) {
            return false;
        }
        return db2_num_fields($this->_stmt);
    }
 
    function errorCode()
    {
        return db2_stmt_error();
    }
 
    function errorInfo()
    {
        return array(
            0 => db2_stmt_errormsg(),
            1 => db2_stmt_error(),
        );
    }
 
    function execute($params = null)
    {
        if (!$this->_stmt) {
            return false;
        }
 
        /*$retval = true;
        if ($params !== null) {
            $retval = @db2_execute($this->_stmt, $params);
        } else {
            $retval = @db2_execute($this->_stmt);
        }*/
        if ($params === null) {
            ksort($this->_bindParam);
            $params = array_values($this->_bindParam);
        }
        $retval = @db2_execute($this->_stmt, $params);
 
        if ($retval === false) {
            throw new DB2Exception(db2_stmt_errormsg());
        }
        return $retval;
    }
 
    function fetch($fetchStyle = \PDO::FETCH_BOTH)
    {
        switch ($fetchStyle) {
            case \PDO::FETCH_BOTH:
                return db2_fetch_both($this->_stmt);
            case \PDO::FETCH_ASSOC:
                return db2_fetch_assoc($this->_stmt);
            case \PDO::FETCH_NUM:
                return db2_fetch_array($this->_stmt);
            default:
                throw new DB2Exception("Given Fetch-Style " . $fetchStyle . " is not supported.");
        }
    }
 
    function fetchAll($fetchStyle = \PDO::FETCH_BOTH)
    {
        $rows = array();
        while ($row = $this->fetch($fetchStyle)) {
            $rows[] = $row;
        }
        return $rows;
    }
 
    function fetchColumn($columnIndex = 0)
    {
        $row = $this->fetch(\PDO::FETCH_NUM);
        if ($row && isset($row[$columnIndex])) {
            return $row[$columnIndex];
        }
        return false;
    }
 
    function rowCount()
    {
        return (@db2_num_rows($this->_stmt))?:0;
    }
}