1<?php 2/** 3 * Zend Framework 4 * 5 * LICENSE 6 * 7 * This source file is subject to the new BSD license that is bundled 8 * with this package in the file LICENSE.txt. 9 * It is also available through the world-wide-web at this URL: 10 * http://framework.zend.com/license/new-bsd 11 * If you did not receive a copy of the license and are unable to 12 * obtain it through the world-wide-web, please send an email 13 * to license@zend.com so we can send you a copy immediately. 14 * 15 * @category Zend 16 * @package Zend_Db 17 * @subpackage Adapter 18 * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) 19 * @license http://framework.zend.com/license/new-bsd New BSD License 20 * @version $Id: Ibm.php 23775 2011-03-01 17:25:24Z ralph $ 21 */ 22 23 24/** @see Zend_Db_Adapter_Pdo_Abstract */ 25// require_once 'Zend/Db/Adapter/Pdo/Abstract.php'; 26 27/** @see Zend_Db_Abstract_Pdo_Ibm_Db2 */ 28// require_once 'Zend/Db/Adapter/Pdo/Ibm/Db2.php'; 29 30/** @see Zend_Db_Abstract_Pdo_Ibm_Ids */ 31// require_once 'Zend/Db/Adapter/Pdo/Ibm/Ids.php'; 32 33/** @see Zend_Db_Statement_Pdo_Ibm */ 34// require_once 'Zend/Db/Statement/Pdo/Ibm.php'; 35 36 37/** 38 * @category Zend 39 * @package Zend_Db 40 * @subpackage Adapter 41 * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) 42 * @license http://framework.zend.com/license/new-bsd New BSD License 43 */ 44class Zend_Db_Adapter_Pdo_Ibm extends Zend_Db_Adapter_Pdo_Abstract 45{ 46 /** 47 * PDO type. 48 * 49 * @var string 50 */ 51 protected $_pdoType = 'ibm'; 52 53 /** 54 * The IBM data server connected to 55 * 56 * @var string 57 */ 58 protected $_serverType = null; 59 60 /** 61 * Keys are UPPERCASE SQL datatypes or the constants 62 * Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE. 63 * 64 * Values are: 65 * 0 = 32-bit integer 66 * 1 = 64-bit integer 67 * 2 = float or decimal 68 * 69 * @var array Associative array of datatypes to values 0, 1, or 2. 70 */ 71 protected $_numericDataTypes = array( 72 Zend_Db::INT_TYPE => Zend_Db::INT_TYPE, 73 Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE, 74 Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE, 75 'INTEGER' => Zend_Db::INT_TYPE, 76 'SMALLINT' => Zend_Db::INT_TYPE, 77 'BIGINT' => Zend_Db::BIGINT_TYPE, 78 'DECIMAL' => Zend_Db::FLOAT_TYPE, 79 'DEC' => Zend_Db::FLOAT_TYPE, 80 'REAL' => Zend_Db::FLOAT_TYPE, 81 'NUMERIC' => Zend_Db::FLOAT_TYPE, 82 'DOUBLE PRECISION' => Zend_Db::FLOAT_TYPE, 83 'FLOAT' => Zend_Db::FLOAT_TYPE 84 ); 85 86 /** 87 * Creates a PDO object and connects to the database. 88 * 89 * The IBM data server is set. 90 * Current options are DB2 or IDS 91 * @todo also differentiate between z/OS and i/5 92 * 93 * @return void 94 * @throws Zend_Db_Adapter_Exception 95 */ 96 public function _connect() 97 { 98 if ($this->_connection) { 99 return; 100 } 101 parent::_connect(); 102 103 $this->getConnection()->setAttribute(Zend_Db::ATTR_STRINGIFY_FETCHES, true); 104 105 try { 106 if ($this->_serverType === null) { 107 $server = substr($this->getConnection()->getAttribute(PDO::ATTR_SERVER_INFO), 0, 3); 108 109 switch ($server) { 110 case 'DB2': 111 $this->_serverType = new Zend_Db_Adapter_Pdo_Ibm_Db2($this); 112 113 // Add DB2-specific numeric types 114 $this->_numericDataTypes['DECFLOAT'] = Zend_Db::FLOAT_TYPE; 115 $this->_numericDataTypes['DOUBLE'] = Zend_Db::FLOAT_TYPE; 116 $this->_numericDataTypes['NUM'] = Zend_Db::FLOAT_TYPE; 117 118 break; 119 case 'IDS': 120 $this->_serverType = new Zend_Db_Adapter_Pdo_Ibm_Ids($this); 121 122 // Add IDS-specific numeric types 123 $this->_numericDataTypes['SERIAL'] = Zend_Db::INT_TYPE; 124 $this->_numericDataTypes['SERIAL8'] = Zend_Db::BIGINT_TYPE; 125 $this->_numericDataTypes['INT8'] = Zend_Db::BIGINT_TYPE; 126 $this->_numericDataTypes['SMALLFLOAT'] = Zend_Db::FLOAT_TYPE; 127 $this->_numericDataTypes['MONEY'] = Zend_Db::FLOAT_TYPE; 128 129 break; 130 } 131 } 132 } catch (PDOException $e) { 133 /** @see Zend_Db_Adapter_Exception */ 134 // require_once 'Zend/Db/Adapter/Exception.php'; 135 $error = strpos($e->getMessage(), 'driver does not support that attribute'); 136 if ($error) { 137 throw new Zend_Db_Adapter_Exception("PDO_IBM driver extension is downlevel. Please use driver release version 1.2.1 or later", 0, $e); 138 } else { 139 throw new Zend_Db_Adapter_Exception($e->getMessage(), $e->getCode(), $e); 140 } 141 } 142 } 143 144 /** 145 * Creates a PDO DSN for the adapter from $this->_config settings. 146 * 147 * @return string 148 */ 149 protected function _dsn() 150 { 151 $this->_checkRequiredOptions($this->_config); 152 153 // check if using full connection string 154 if (array_key_exists('host', $this->_config)) { 155 $dsn = ';DATABASE=' . $this->_config['dbname'] 156 . ';HOSTNAME=' . $this->_config['host'] 157 . ';PORT=' . $this->_config['port'] 158 // PDO_IBM supports only DB2 TCPIP protocol 159 . ';PROTOCOL=' . 'TCPIP;'; 160 } else { 161 // catalogued connection 162 $dsn = $this->_config['dbname']; 163 } 164 return $this->_pdoType . ': ' . $dsn; 165 } 166 167 /** 168 * Checks required options 169 * 170 * @param array $config 171 * @throws Zend_Db_Adapter_Exception 172 * @return void 173 */ 174 protected function _checkRequiredOptions(array $config) 175 { 176 parent::_checkRequiredOptions($config); 177 178 if (array_key_exists('host', $this->_config) && 179 !array_key_exists('port', $config)) { 180 /** @see Zend_Db_Adapter_Exception */ 181 // require_once 'Zend/Db/Adapter/Exception.php'; 182 throw new Zend_Db_Adapter_Exception("Configuration must have a key for 'port' when 'host' is specified"); 183 } 184 } 185 186 /** 187 * Prepares an SQL statement. 188 * 189 * @param string $sql The SQL statement with placeholders. 190 * @param array $bind An array of data to bind to the placeholders. 191 * @return PDOStatement 192 */ 193 public function prepare($sql) 194 { 195 $this->_connect(); 196 $stmtClass = $this->_defaultStmtClass; 197 $stmt = new $stmtClass($this, $sql); 198 $stmt->setFetchMode($this->_fetchMode); 199 return $stmt; 200 } 201 202 /** 203 * Returns a list of the tables in the database. 204 * 205 * @return array 206 */ 207 public function listTables() 208 { 209 $this->_connect(); 210 return $this->_serverType->listTables(); 211 } 212 213 /** 214 * Returns the column descriptions for a table. 215 * 216 * The return value is an associative array keyed by the column name, 217 * as returned by the RDBMS. 218 * 219 * The value of each array element is an associative array 220 * with the following keys: 221 * 222 * SCHEMA_NAME => string; name of database or schema 223 * TABLE_NAME => string; 224 * COLUMN_NAME => string; column name 225 * COLUMN_POSITION => number; ordinal position of column in table 226 * DATA_TYPE => string; SQL datatype name of column 227 * DEFAULT => string; default expression of column, null if none 228 * NULLABLE => boolean; true if column can have nulls 229 * LENGTH => number; length of CHAR/VARCHAR 230 * SCALE => number; scale of NUMERIC/DECIMAL 231 * PRECISION => number; precision of NUMERIC/DECIMAL 232 * UNSIGNED => boolean; unsigned property of an integer type 233 * PRIMARY => boolean; true if column is part of the primary key 234 * PRIMARY_POSITION => integer; position of column in primary key 235 * 236 * @todo Discover integer unsigned property. 237 * 238 * @param string $tableName 239 * @param string $schemaName OPTIONAL 240 * @return array 241 */ 242 public function describeTable($tableName, $schemaName = null) 243 { 244 $this->_connect(); 245 return $this->_serverType->describeTable($tableName, $schemaName); 246 } 247 248 /** 249 * Inserts a table row with specified data. 250 * Special handling for PDO_IBM 251 * remove empty slots 252 * 253 * @param mixed $table The table to insert data into. 254 * @param array $bind Column-value pairs. 255 * @return int The number of affected rows. 256 */ 257 public function insert($table, array $bind) 258 { 259 $this->_connect(); 260 $newbind = array(); 261 if (is_array($bind)) { 262 foreach ($bind as $name => $value) { 263 if($value !== null) { 264 $newbind[$name] = $value; 265 } 266 } 267 } 268 269 return parent::insert($table, $newbind); 270 } 271 272 /** 273 * Adds an adapter-specific LIMIT clause to the SELECT statement. 274 * 275 * @param string $sql 276 * @param integer $count 277 * @param integer $offset OPTIONAL 278 * @return string 279 */ 280 public function limit($sql, $count, $offset = 0) 281 { 282 $this->_connect(); 283 return $this->_serverType->limit($sql, $count, $offset); 284 } 285 286 /** 287 * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT 288 * column. 289 * 290 * @param string $tableName OPTIONAL 291 * @param string $primaryKey OPTIONAL 292 * @return integer 293 */ 294 public function lastInsertId($tableName = null, $primaryKey = null) 295 { 296 $this->_connect(); 297 298 if ($tableName !== null) { 299 $sequenceName = $tableName; 300 if ($primaryKey) { 301 $sequenceName .= "_$primaryKey"; 302 } 303 $sequenceName .= '_seq'; 304 return $this->lastSequenceId($sequenceName); 305 } 306 307 $id = $this->getConnection()->lastInsertId(); 308 309 return $id; 310 } 311 312 /** 313 * Return the most recent value from the specified sequence in the database. 314 * 315 * @param string $sequenceName 316 * @return integer 317 */ 318 public function lastSequenceId($sequenceName) 319 { 320 $this->_connect(); 321 return $this->_serverType->lastSequenceId($sequenceName); 322 } 323 324 /** 325 * Generate a new value from the specified sequence in the database, 326 * and return it. 327 * 328 * @param string $sequenceName 329 * @return integer 330 */ 331 public function nextSequenceId($sequenceName) 332 { 333 $this->_connect(); 334 return $this->_serverType->nextSequenceId($sequenceName); 335 } 336 337 /** 338 * Retrieve server version in PHP style 339 * Pdo_Idm doesn't support getAttribute(PDO::ATTR_SERVER_VERSION) 340 * @return string 341 */ 342 public function getServerVersion() 343 { 344 try { 345 $stmt = $this->query('SELECT service_level, fixpack_num FROM TABLE (sysproc.env_get_inst_info()) as INSTANCEINFO'); 346 $result = $stmt->fetchAll(Zend_Db::FETCH_NUM); 347 if (count($result)) { 348 $matches = null; 349 if (preg_match('/((?:[0-9]{1,2}\.){1,3}[0-9]{1,2})/', $result[0][0], $matches)) { 350 return $matches[1]; 351 } else { 352 return null; 353 } 354 } 355 return null; 356 } catch (PDOException $e) { 357 return null; 358 } 359 } 360} 361