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<?php
/**
 * 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) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

/**
 * @see Zend_Db_Statement
 */
require_once 'Zend/Db/Statement.php';

/**
 * Extends for Oracle.
 *
 * @category   Zend
 * @package    Zend_Db
 * @subpackage Statement
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Db_Statement_Oracle extends Zend_Db_Statement
{

/**
     * The connection_stmt object.
     */
    protected $_stmt;

/**
     * Column names.
     */
    protected $_keys;

/**
     * Fetched result values.
     */
    protected $_values;

/**
     * Check if LOB field are returned as string
     * instead of OCI-Lob object
     *
     * @var boolean
     */
    protected $_lobAsString = false;

/**
     * Activate/deactivate return of LOB as string
     *
     * @param string $lob_as_string
     * @return Zend_Db_Statement_Oracle
     */
    public function setLobAsString($lob_as_string)
    {
        $this->_lobAsString = (bool) $lob_as_string;
        return $this;
    }

/**
     * Return whether or not LOB are returned as string
     *
     * @return boolean
     */
    public function getLobAsString()
    {
        return $this->_lobAsString;
    }

/**
     * Prepares statement handle
     *
     * @param string $sql
     * @return void
     * @throws Zend_Db_Statement_Oracle_Exception
     */
    protected function _prepare($sql)
    {
        $connection = $this->_adapter->getConnection();
        $this->_stmt = oci_parse($connection, $sql);
        if (!$this->_stmt) {
            /**
             * @see Zend_Db_Statement_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($connection));
        }
    }

/**
     * 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 $options   OPTIONAL Other options.
     * @return bool
     * @throws Zend_Db_Statement_Exception
     */
    protected function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
    {
        // default value
        if ($type === NULL) {
            $type = SQLT_CHR;
        }

// default value
        if ($length === NULL) {
            $length = -1;
        }

$retval = @oci_bind_by_name($this->_stmt, $parameter, $variable, $length, $type);
        if ($retval === false) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($this->_stmt));
        }

return true;
    }

/**
     * Closes the cursor, allowing the statement to be executed again.
     *
     * @return bool
     */
    public function closeCursor()
    {
        if (!$this->_stmt) {
            return false;
        }

oci_free_statement($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 oci_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;
        }

$error = oci_error($this->_stmt);

if (!$error) {
            return false;
        }

return $error['code'];
    }

/**
     * Retrieves an array of error information, if any, associated with the
     * last operation on the statement handle.
     *
     * @return array
     */
    public function errorInfo()
    {
        if (!$this->_stmt) {
            return false;
        }

$error = oci_error($this->_stmt);
        if (!$error) {
            return false;
        }

if (isset($error['sqltext'])) {
            return array(
                $error['code'],
                $error['message'],
                $error['offset'],
                $error['sqltext'],
            );
        } else {
            return array(
                $error['code'],
                $error['message'],
            );
        }
    }

/**
     * Executes a prepared statement.
     *
     * @param array $params OPTIONAL Values to bind to parameter placeholders.
     * @return bool
     * @throws Zend_Db_Statement_Exception
     */
    public function _execute(array $params = null)
    {
        $connection = $this->_adapter->getConnection();
        if (!$this->_stmt) {
            return false;
        }

if (! $this->_stmt) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($connection));
        }

if ($params !== null) {
            if (!is_array($params)) {
                $params = array($params);
            }
            $error = false;
            foreach (array_keys($params) as $name) {
                if (!@oci_bind_by_name($this->_stmt, $name, $params[$name], -1)) {
                    $error = true;
                    break;
                }
            }
            if ($error) {
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception(oci_error($this->_stmt));
            }
        }

$retval = @oci_execute($this->_stmt, $this->_adapter->_getExecuteMode());
        if ($retval === false) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($this->_stmt));
        }

$this->_keys = Array();
        if ($field_num = oci_num_fields($this->_stmt)) {
            for ($i = 1; $i <= $field_num; $i++) {
                $name = oci_field_name($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 $offset OPTIONAL Number for absolute or relative cursors.
     * @return mixed Array, object, or scalar depending on fetch mode.
     * @throws Zend_Db_Statement_Exception
     */
    public function fetch($style = null, $cursor = null, $offset = null)
    {
        if (!$this->_stmt) {
            return false;
        }

if ($style === null) {
            $style = $this->_fetchMode;
        }

$lob_as_string = $this->getLobAsString() ? OCI_RETURN_LOBS : 0;

switch ($style) {
            case Zend_Db::FETCH_NUM:
                $row = oci_fetch_array($this->_stmt, OCI_NUM | OCI_RETURN_NULLS | $lob_as_string);
                break;
            case Zend_Db::FETCH_ASSOC:
                $row = oci_fetch_array($this->_stmt, OCI_ASSOC | OCI_RETURN_NULLS | $lob_as_string);
                break;
            case Zend_Db::FETCH_BOTH:
                $row = oci_fetch_array($this->_stmt, OCI_BOTH | OCI_RETURN_NULLS | $lob_as_string);
                break;
            case Zend_Db::FETCH_OBJ:
                $row = oci_fetch_object($this->_stmt);
                break;
            case Zend_Db::FETCH_BOUND:
                $row = oci_fetch_array($this->_stmt, OCI_BOTH | OCI_RETURN_NULLS | $lob_as_string);
                if ($row !== false) {
                    return $this->_fetchBound($row);
                }
                break;
            default:
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception(
                    array(
                        'code'    => 'HYC00',
                        'message' => "Invalid fetch mode '$style' specified"
                    )
                );
                break;
        }

if (! $row && $error = oci_error($this->_stmt)) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception($error);
        }

return $row;
    }

/**
     * Returns an array containing all of the result set rows.
     *
     * @param int $style OPTIONAL Fetch mode.
     * @param int $col   OPTIONAL Column number, if fetch mode is by column.
     * @return array Collection of rows, each in a format by the fetch mode.
     * @throws Zend_Db_Statement_Exception
     */
    public function fetchAll($style = null, $col = 0)
    {
        if (!$this->_stmt) {
            return false;
        }

// make sure we have a fetch mode
        if ($style === null) {
            $style = $this->_fetchMode;
        }

$flags = OCI_FETCHSTATEMENT_BY_ROW;

switch ($style) {
            case Zend_Db::FETCH_BOTH:
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception(
                    array(
                        'code'    => 'HYC00',
                        'message' => "OCI8 driver does not support fetchAll(FETCH_BOTH), use fetch() in a loop instead"
                    )
                );
                // notreached
                $flags |= OCI_NUM;
                $flags |= OCI_ASSOC;
                break;
            case Zend_Db::FETCH_NUM:
                $flags |= OCI_NUM;
                break;
            case Zend_Db::FETCH_ASSOC:
                $flags |= OCI_ASSOC;
                break;
            case Zend_Db::FETCH_OBJ:
                break;
            case Zend_Db::FETCH_COLUMN:
                $flags = $flags &~ OCI_FETCHSTATEMENT_BY_ROW;
                $flags |= OCI_FETCHSTATEMENT_BY_COLUMN;
                $flags |= OCI_NUM;
                break;
            default:
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception(
                    array(
                        'code'    => 'HYC00',
                        'message' => "Invalid fetch mode '$style' specified"
                    )
                );
                break;
        }

$result = Array();
        if ($flags != OCI_FETCHSTATEMENT_BY_ROW) { /* not Zend_Db::FETCH_OBJ */
            if (! ($rows = oci_fetch_all($this->_stmt, $result, 0, -1, $flags) )) {
                if ($error = oci_error($this->_stmt)) {
                    /**
                     * @see Zend_Db_Adapter_Oracle_Exception
                     */
                    require_once 'Zend/Db/Statement/Oracle/Exception.php';
                    throw new Zend_Db_Statement_Oracle_Exception($error);
                }
                if (!$rows) {
                    return array();
                }
            }
            if ($style == Zend_Db::FETCH_COLUMN) {
                $result = $result[$col];
            }
        } else {
            while (($row = oci_fetch_object($this->_stmt)) !== false) {
                $result [] = $row;
            }
            if ($error = oci_error($this->_stmt)) {
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception($error);
            }
        }

return $result;
    }

/**
     * Returns a single column from the next row of a result set.
     *
     * @param int $col OPTIONAL Position of the column to fetch.
     * @return string
     * @throws Zend_Db_Statement_Exception
     */
    public function fetchColumn($col = 0)
    {
        if (!$this->_stmt) {
            return false;
        }

if (!oci_fetch($this->_stmt)) {
            // if no error, there is simply no record
            if (!$error = oci_error($this->_stmt)) {
                return false;
            }
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception($error);
        }

$data = oci_result($this->_stmt, $col+1); //1-based
        if ($data === false) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($this->_stmt));
        }

if ($this->getLobAsString()) {
            // instanceof doesn't allow '-', we must use a temporary string
            $type = 'OCI-Lob';
            if ($data instanceof $type) {
                $data = $data->read($data->size());
            }
        }

return $data;
    }

/**
     * Fetches the next row and returns it as an object.
     *
     * @param string $class  OPTIONAL Name of the class to create.
     * @param array  $config OPTIONAL Constructor arguments for the class.
     * @return mixed One object instance of the specified class.
     * @throws Zend_Db_Statement_Exception
     */
    public function fetchObject($class = 'stdClass', array $config = array())
    {
        if (!$this->_stmt) {
            return false;
        }

$obj = oci_fetch_object($this->_stmt);

if ($error = oci_error($this->_stmt)) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception($error);
        }

/* @todo XXX handle parameters */

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_Exception
     */
    public function nextRowset()
    {
        /**
         * @see Zend_Db_Statement_Oracle_Exception
         */
        require_once 'Zend/Db/Statement/Oracle/Exception.php';
        throw new Zend_Db_Statement_Oracle_Exception(
            array(
                'code'    => 'HYC00',
                'message' => 'Optional feature 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) {
            return false;
        }

$num_rows = oci_num_rows($this->_stmt);

if ($num_rows === false) {
            /**
             * @see Zend_Db_Adapter_Oracle_Exception
             */
            require_once 'Zend/Db/Statement/Oracle/Exception.php';
            throw new Zend_Db_Statement_Oracle_Exception(oci_error($this->_stmt));
        }

return $num_rows;
    }

}

Nama File / Folder	Size	Action
Db2	--	NONE
Mysqli	--	NONE
Oracle	--	NONE
Pdo	--	NONE
Db2.php	10.311KB	Edit File Delete File Rename
Exception.php	1.124KB	Edit File Delete File Rename
Mysqli.php	10.768KB	Edit File Delete File Rename
Oracle.php	17.313KB	Edit File Delete File Rename
Pdo.php	13.864KB	Edit File Delete File Rename