/DevApp/library/ServerLibraries/ZendFramework/1.7/library/Zend/Db/Adapter/Pdo/Ibm.php
PHP | 360 lines | 161 code | 34 blank | 165 comment | 16 complexity | c243e77eaad416cf3ce7c070632052b4 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.0, MIT, Apache-2.0
- <?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 Adapter
- * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: Ibm.php 13280 2008-12-15 20:48:08Z mikaelkael $
- */
- /** @see Zend_Db_Adapter_Pdo_Abstract */
- require_once 'Zend/Db/Adapter/Pdo/Abstract.php';
- /** @see Zend_Db_Abstract_Pdo_Ibm_Db2 */
- require_once 'Zend/Db/Adapter/Pdo/Ibm/Db2.php';
- /** @see Zend_Db_Abstract_Pdo_Ibm_Ids */
- require_once 'Zend/Db/Adapter/Pdo/Ibm/Ids.php';
- /** @see Zend_Db_Statement_Pdo_Ibm */
- require_once 'Zend/Db/Statement/Pdo/Ibm.php';
- /**
- * @category Zend
- * @package Zend_Db
- * @subpackage Adapter
- * @copyright Copyright (c) 2005-2008 Zend Technologies Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
- class Zend_Db_Adapter_Pdo_Ibm extends Zend_Db_Adapter_Pdo_Abstract
- {
- /**
- * PDO type.
- *
- * @var string
- */
- protected $_pdoType = 'ibm';
- /**
- * The IBM data server connected to
- *
- * @var string
- */
- protected $_serverType = null;
- /**
- * Keys are UPPERCASE SQL datatypes or the constants
- * Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.
- *
- * Values are:
- * 0 = 32-bit integer
- * 1 = 64-bit integer
- * 2 = float or decimal
- *
- * @var array Associative array of datatypes to values 0, 1, or 2.
- */
- protected $_numericDataTypes = array(
- Zend_Db::INT_TYPE => Zend_Db::INT_TYPE,
- Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE,
- Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE,
- 'INTEGER' => Zend_Db::INT_TYPE,
- 'SMALLINT' => Zend_Db::INT_TYPE,
- 'BIGINT' => Zend_Db::BIGINT_TYPE,
- 'DECIMAL' => Zend_Db::FLOAT_TYPE,
- 'DEC' => Zend_Db::FLOAT_TYPE,
- 'REAL' => Zend_Db::FLOAT_TYPE,
- 'NUMERIC' => Zend_Db::FLOAT_TYPE,
- 'DOUBLE PRECISION' => Zend_Db::FLOAT_TYPE,
- 'FLOAT' => Zend_Db::FLOAT_TYPE
- );
- /**
- * Creates a PDO object and connects to the database.
- *
- * The IBM data server is set.
- * Current options are DB2 or IDS
- * @todo also differentiate between z/OS and i/5
- *
- * @return void
- * @throws Zend_Db_Adapter_Exception
- */
- public function _connect()
- {
- if ($this->_connection) {
- return;
- }
- parent::_connect();
- $this->getConnection()->setAttribute(Zend_Db::ATTR_STRINGIFY_FETCHES, true);
- try {
- if ($this->_serverType === null) {
- $server = substr($this->getConnection()->getAttribute(PDO::ATTR_SERVER_INFO), 0, 3);
- switch ($server) {
- case 'DB2':
- $this->_serverType = new Zend_Db_Adapter_Pdo_Ibm_Db2($this);
- // Add DB2-specific numeric types
- $this->_numericDataTypes['DECFLOAT'] = Zend_Db::FLOAT_TYPE;
- $this->_numericDataTypes['DOUBLE'] = Zend_Db::FLOAT_TYPE;
- $this->_numericDataTypes['NUM'] = Zend_Db::FLOAT_TYPE;
- break;
- case 'IDS':
- $this->_serverType = new Zend_Db_Adapter_Pdo_Ibm_Ids($this);
- // Add IDS-specific numeric types
- $this->_numericDataTypes['SERIAL'] = Zend_Db::INT_TYPE;
- $this->_numericDataTypes['SERIAL8'] = Zend_Db::BIGINT_TYPE;
- $this->_numericDataTypes['INT8'] = Zend_Db::BIGINT_TYPE;
- $this->_numericDataTypes['SMALLFLOAT'] = Zend_Db::FLOAT_TYPE;
- $this->_numericDataTypes['MONEY'] = Zend_Db::FLOAT_TYPE;
- break;
- }
- }
- } catch (PDOException $e) {
- /** @see Zend_Db_Adapter_Exception */
- require_once 'Zend/Db/Adapter/Exception.php';
- $error = strpos($e->getMessage(), 'driver does not support that attribute');
- if ($error) {
- throw new Zend_Db_Adapter_Exception("PDO_IBM driver extension is downlevel. Please use driver release version 1.2.1 or later");
- } else {
- throw new Zend_Db_Adapter_Exception($e->getMessage());
- }
- }
- }
- /**
- * Creates a PDO DSN for the adapter from $this->_config settings.
- *
- * @return string
- */
- protected function _dsn()
- {
- $this->_checkRequiredOptions($this->_config);
- // check if using full connection string
- if (array_key_exists('host', $this->_config)) {
- $dsn = ';DATABASE=' . $this->_config['dbname']
- . ';HOSTNAME=' . $this->_config['host']
- . ';PORT=' . $this->_config['port']
- // PDO_IBM supports only DB2 TCPIP protocol
- . ';PROTOCOL=' . 'TCPIP;';
- } else {
- // catalogued connection
- $dsn = $this->_config['dbname'];
- }
- return $this->_pdoType . ': ' . $dsn;
- }
- /**
- * Checks required options
- *
- * @param array $config
- * @throws Zend_Db_Adapter_Exception
- * @return void
- */
- protected function _checkRequiredOptions(array $config)
- {
- parent::_checkRequiredOptions($config);
- if (array_key_exists('host', $this->_config) &&
- !array_key_exists('port', $config)) {
- /** @see Zend_Db_Adapter_Exception */
- require_once 'Zend/Db/Adapter/Exception.php';
- throw new Zend_Db_Adapter_Exception("Configuration must have a key for 'port' when 'host' is specified");
- }
- }
- /**
- * Prepares an SQL statement.
- *
- * @param string $sql The SQL statement with placeholders.
- * @param array $bind An array of data to bind to the placeholders.
- * @return PDOStatement
- */
- public function prepare($sql)
- {
- $this->_connect();
- $stmtClass = $this->_defaultStmtClass;
- $stmt = new $stmtClass($this, $sql);
- $stmt->setFetchMode($this->_fetchMode);
- return $stmt;
- }
- /**
- * Returns a list of the tables in the database.
- *
- * @return array
- */
- public function listTables()
- {
- $this->_connect();
- return $this->_serverType->listTables();
- }
- /**
- * Returns the column descriptions for a table.
- *
- * The return value is an associative array keyed by the column name,
- * as returned by the RDBMS.
- *
- * The value of each array element is an associative array
- * with the following keys:
- *
- * SCHEMA_NAME => string; name of database or schema
- * TABLE_NAME => string;
- * COLUMN_NAME => string; column name
- * COLUMN_POSITION => number; ordinal position of column in table
- * DATA_TYPE => string; SQL datatype name of column
- * DEFAULT => string; default expression of column, null if none
- * NULLABLE => boolean; true if column can have nulls
- * LENGTH => number; length of CHAR/VARCHAR
- * SCALE => number; scale of NUMERIC/DECIMAL
- * PRECISION => number; precision of NUMERIC/DECIMAL
- * UNSIGNED => boolean; unsigned property of an integer type
- * PRIMARY => boolean; true if column is part of the primary key
- * PRIMARY_POSITION => integer; position of column in primary key
- *
- * @todo Discover integer unsigned property.
- *
- * @param string $tableName
- * @param string $schemaName OPTIONAL
- * @return array
- */
- public function describeTable($tableName, $schemaName = null)
- {
- $this->_connect();
- return $this->_serverType->describeTable($tableName, $schemaName);
- }
- /**
- * Inserts a table row with specified data.
- * Special handling for PDO_IBM
- * remove empty slots
- *
- * @param mixed $table The table to insert data into.
- * @param array $bind Column-value pairs.
- * @return int The number of affected rows.
- */
- public function insert($table, array $bind)
- {
- $this->_connect();
- $newbind = array();
- if (is_array($bind)) {
- foreach ($bind as $name => $value) {
- if(!is_null($value)) {
- $newbind[$name] = $value;
- }
- }
- }
- return parent::insert($table, $newbind);
- }
- /**
- * Adds an adapter-specific LIMIT clause to the SELECT statement.
- *
- * @param string $sql
- * @param integer $count
- * @param integer $offset OPTIONAL
- * @return string
- */
- public function limit($sql, $count, $offset = 0)
- {
- $this->_connect();
- return $this->_serverType->limit($sql, $count, $offset);
- }
- /**
- * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT
- * column.
- *
- * @param string $tableName OPTIONAL
- * @param string $primaryKey OPTIONAL
- * @return integer
- */
- public function lastInsertId($tableName = null, $primaryKey = null)
- {
- $this->_connect();
- if ($tableName !== null) {
- $sequenceName = $tableName;
- if ($primaryKey) {
- $sequenceName .= "_$primaryKey";
- }
- $sequenceName .= '_seq';
- return $this->lastSequenceId($sequenceName);
- }
- $id = $this->getConnection()->lastInsertId();
- return $id;
- }
- /**
- * Return the most recent value from the specified sequence in the database.
- *
- * @param string $sequenceName
- * @return integer
- */
- public function lastSequenceId($sequenceName)
- {
- $this->_connect();
- return $this->_serverType->lastSequenceId($sequenceName);
- }
- /**
- * Generate a new value from the specified sequence in the database,
- * and return it.
- *
- * @param string $sequenceName
- * @return integer
- */
- public function nextSequenceId($sequenceName)
- {
- $this->_connect();
- return $this->_serverType->nextSequenceId($sequenceName);
- }
- /**
- * Retrieve server version in PHP style
- * Pdo_Idm doesn't support getAttribute(PDO::ATTR_SERVER_VERSION)
- * @return string
- */
- public function getServerVersion()
- {
- try {
- $stmt = $this->query('SELECT service_level, fixpack_num FROM TABLE (sysproc.env_get_inst_info()) as INSTANCEINFO');
- $result = $stmt->fetchAll(Zend_Db::FETCH_NUM);
- if (count($result)) {
- $matches = null;
- if (preg_match('/((?:[0-9]{1,2}\.){1,3}[0-9]{1,2})/', $result[0][0], $matches)) {
- return $matches[1];
- } else {
- return null;
- }
- }
- return null;
- } catch (PDOException $e) {
- return null;
- }
- }
- }