Ibm
6 years ago
Abstract.php
6 years ago
Ibm.php
6 years ago
Mssql.php
6 years ago
Mysql.php
6 years ago
Oci.php
6 years ago
Pgsql.php
6 years ago
Sqlite.php
5 years ago
Mssql.php
424 lines
| 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: Mssql.php 23775 2011-03-01 17:25:24Z ralph $ |
| 21 | */ |
| 22 | |
| 23 | |
| 24 | /** |
| 25 | * @see Zend_Db_Adapter_Pdo_Abstract |
| 26 | */ |
| 27 | // require_once 'Zend/Db/Adapter/Pdo/Abstract.php'; |
| 28 | |
| 29 | |
| 30 | /** |
| 31 | * Class for connecting to Microsoft SQL Server databases and performing common operations. |
| 32 | * |
| 33 | * @category Zend |
| 34 | * @package Zend_Db |
| 35 | * @subpackage Adapter |
| 36 | * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
| 37 | * @license http://framework.zend.com/license/new-bsd New BSD License |
| 38 | */ |
| 39 | class Zend_Db_Adapter_Pdo_Mssql extends Zend_Db_Adapter_Pdo_Abstract |
| 40 | { |
| 41 | /** |
| 42 | * PDO type. |
| 43 | * |
| 44 | * @var string |
| 45 | */ |
| 46 | protected $_pdoType = 'mssql'; |
| 47 | |
| 48 | /** |
| 49 | * Keys are UPPERCASE SQL datatypes or the constants |
| 50 | * Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE. |
| 51 | * |
| 52 | * Values are: |
| 53 | * 0 = 32-bit integer |
| 54 | * 1 = 64-bit integer |
| 55 | * 2 = float or decimal |
| 56 | * |
| 57 | * @var array Associative array of datatypes to values 0, 1, or 2. |
| 58 | */ |
| 59 | protected $_numericDataTypes = array( |
| 60 | Zend_Db::INT_TYPE => Zend_Db::INT_TYPE, |
| 61 | Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE, |
| 62 | Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE, |
| 63 | 'INT' => Zend_Db::INT_TYPE, |
| 64 | 'SMALLINT' => Zend_Db::INT_TYPE, |
| 65 | 'TINYINT' => Zend_Db::INT_TYPE, |
| 66 | 'BIGINT' => Zend_Db::BIGINT_TYPE, |
| 67 | 'DECIMAL' => Zend_Db::FLOAT_TYPE, |
| 68 | 'FLOAT' => Zend_Db::FLOAT_TYPE, |
| 69 | 'MONEY' => Zend_Db::FLOAT_TYPE, |
| 70 | 'NUMERIC' => Zend_Db::FLOAT_TYPE, |
| 71 | 'REAL' => Zend_Db::FLOAT_TYPE, |
| 72 | 'SMALLMONEY' => Zend_Db::FLOAT_TYPE |
| 73 | ); |
| 74 | |
| 75 | /** |
| 76 | * Creates a PDO DSN for the adapter from $this->_config settings. |
| 77 | * |
| 78 | * @return string |
| 79 | */ |
| 80 | protected function _dsn() |
| 81 | { |
| 82 | // baseline of DSN parts |
| 83 | $dsn = $this->_config; |
| 84 | |
| 85 | // don't pass the username and password in the DSN |
| 86 | unset($dsn['username']); |
| 87 | unset($dsn['password']); |
| 88 | unset($dsn['options']); |
| 89 | unset($dsn['persistent']); |
| 90 | unset($dsn['driver_options']); |
| 91 | |
| 92 | if (isset($dsn['port'])) { |
| 93 | $seperator = ':'; |
| 94 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
| 95 | $seperator = ','; |
| 96 | } |
| 97 | $dsn['host'] .= $seperator . $dsn['port']; |
| 98 | unset($dsn['port']); |
| 99 | } |
| 100 | |
| 101 | // this driver supports multiple DSN prefixes |
| 102 | // @see http://www.php.net/manual/en/ref.pdo-dblib.connection.php |
| 103 | if (isset($dsn['pdoType'])) { |
| 104 | switch (strtolower($dsn['pdoType'])) { |
| 105 | case 'freetds': |
| 106 | case 'sybase': |
| 107 | $this->_pdoType = 'sybase'; |
| 108 | break; |
| 109 | case 'mssql': |
| 110 | $this->_pdoType = 'mssql'; |
| 111 | break; |
| 112 | case 'dblib': |
| 113 | default: |
| 114 | $this->_pdoType = 'dblib'; |
| 115 | break; |
| 116 | } |
| 117 | unset($dsn['pdoType']); |
| 118 | } |
| 119 | |
| 120 | // use all remaining parts in the DSN |
| 121 | foreach ($dsn as $key => $val) { |
| 122 | $dsn[$key] = "$key=$val"; |
| 123 | } |
| 124 | |
| 125 | $dsn = $this->_pdoType . ':' . implode(';', $dsn); |
| 126 | return $dsn; |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * @return void |
| 131 | */ |
| 132 | protected function _connect() |
| 133 | { |
| 134 | if ($this->_connection) { |
| 135 | return; |
| 136 | } |
| 137 | parent::_connect(); |
| 138 | $this->_connection->exec('SET QUOTED_IDENTIFIER ON'); |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Begin a transaction. |
| 143 | * |
| 144 | * It is necessary to override the abstract PDO transaction functions here, as |
| 145 | * the PDO driver for MSSQL does not support transactions. |
| 146 | */ |
| 147 | protected function _beginTransaction() |
| 148 | { |
| 149 | $this->_connect(); |
| 150 | $this->_connection->exec('BEGIN TRANSACTION'); |
| 151 | return true; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Commit a transaction. |
| 156 | * |
| 157 | * It is necessary to override the abstract PDO transaction functions here, as |
| 158 | * the PDO driver for MSSQL does not support transactions. |
| 159 | */ |
| 160 | protected function _commit() |
| 161 | { |
| 162 | $this->_connect(); |
| 163 | $this->_connection->exec('COMMIT TRANSACTION'); |
| 164 | return true; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Roll-back a transaction. |
| 169 | * |
| 170 | * It is necessary to override the abstract PDO transaction functions here, as |
| 171 | * the PDO driver for MSSQL does not support transactions. |
| 172 | */ |
| 173 | protected function _rollBack() { |
| 174 | $this->_connect(); |
| 175 | $this->_connection->exec('ROLLBACK TRANSACTION'); |
| 176 | return true; |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Returns a list of the tables in the database. |
| 181 | * |
| 182 | * @return array |
| 183 | */ |
| 184 | public function listTables() |
| 185 | { |
| 186 | $sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name"; |
| 187 | return $this->fetchCol($sql); |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Returns the column descriptions for a table. |
| 192 | * |
| 193 | * The return value is an associative array keyed by the column name, |
| 194 | * as returned by the RDBMS. |
| 195 | * |
| 196 | * The value of each array element is an associative array |
| 197 | * with the following keys: |
| 198 | * |
| 199 | * SCHEMA_NAME => string; name of database or schema |
| 200 | * TABLE_NAME => string; |
| 201 | * COLUMN_NAME => string; column name |
| 202 | * COLUMN_POSITION => number; ordinal position of column in table |
| 203 | * DATA_TYPE => string; SQL datatype name of column |
| 204 | * DEFAULT => string; default expression of column, null if none |
| 205 | * NULLABLE => boolean; true if column can have nulls |
| 206 | * LENGTH => number; length of CHAR/VARCHAR |
| 207 | * SCALE => number; scale of NUMERIC/DECIMAL |
| 208 | * PRECISION => number; precision of NUMERIC/DECIMAL |
| 209 | * UNSIGNED => boolean; unsigned property of an integer type |
| 210 | * PRIMARY => boolean; true if column is part of the primary key |
| 211 | * PRIMARY_POSITION => integer; position of column in primary key |
| 212 | * PRIMARY_AUTO => integer; position of auto-generated column in primary key |
| 213 | * |
| 214 | * @todo Discover column primary key position. |
| 215 | * @todo Discover integer unsigned property. |
| 216 | * |
| 217 | * @param string $tableName |
| 218 | * @param string $schemaName OPTIONAL |
| 219 | * @return array |
| 220 | */ |
| 221 | public function describeTable($tableName, $schemaName = null) |
| 222 | { |
| 223 | if ($schemaName != null) { |
| 224 | if (strpos($schemaName, '.') !== false) { |
| 225 | $result = explode('.', $schemaName); |
| 226 | $schemaName = $result[1]; |
| 227 | } |
| 228 | } |
| 229 | /** |
| 230 | * Discover metadata information about this table. |
| 231 | */ |
| 232 | $sql = "exec sp_columns @table_name = " . $this->quoteIdentifier($tableName, true); |
| 233 | if ($schemaName != null) { |
| 234 | $sql .= ", @table_owner = " . $this->quoteIdentifier($schemaName, true); |
| 235 | } |
| 236 | |
| 237 | $stmt = $this->query($sql); |
| 238 | $result = $stmt->fetchAll(Zend_Db::FETCH_NUM); |
| 239 | |
| 240 | $table_name = 2; |
| 241 | $column_name = 3; |
| 242 | $type_name = 5; |
| 243 | $precision = 6; |
| 244 | $length = 7; |
| 245 | $scale = 8; |
| 246 | $nullable = 10; |
| 247 | $column_def = 12; |
| 248 | $column_position = 16; |
| 249 | |
| 250 | /** |
| 251 | * Discover primary key column(s) for this table. |
| 252 | */ |
| 253 | $sql = "exec sp_pkeys @table_name = " . $this->quoteIdentifier($tableName, true); |
| 254 | if ($schemaName != null) { |
| 255 | $sql .= ", @table_owner = " . $this->quoteIdentifier($schemaName, true); |
| 256 | } |
| 257 | |
| 258 | $stmt = $this->query($sql); |
| 259 | $primaryKeysResult = $stmt->fetchAll(Zend_Db::FETCH_NUM); |
| 260 | $primaryKeyColumn = array(); |
| 261 | $pkey_column_name = 3; |
| 262 | $pkey_key_seq = 4; |
| 263 | foreach ($primaryKeysResult as $pkeysRow) { |
| 264 | $primaryKeyColumn[$pkeysRow[$pkey_column_name]] = $pkeysRow[$pkey_key_seq]; |
| 265 | } |
| 266 | |
| 267 | $desc = array(); |
| 268 | $p = 1; |
| 269 | foreach ($result as $key => $row) { |
| 270 | $identity = false; |
| 271 | $words = explode(' ', $row[$type_name], 2); |
| 272 | if (isset($words[0])) { |
| 273 | $type = $words[0]; |
| 274 | if (isset($words[1])) { |
| 275 | $identity = (bool) preg_match('/identity/', $words[1]); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | $isPrimary = array_key_exists($row[$column_name], $primaryKeyColumn); |
| 280 | if ($isPrimary) { |
| 281 | $primaryPosition = $primaryKeyColumn[$row[$column_name]]; |
| 282 | } else { |
| 283 | $primaryPosition = null; |
| 284 | } |
| 285 | |
| 286 | $desc[$this->foldCase($row[$column_name])] = array( |
| 287 | 'SCHEMA_NAME' => null, // @todo |
| 288 | 'TABLE_NAME' => $this->foldCase($row[$table_name]), |
| 289 | 'COLUMN_NAME' => $this->foldCase($row[$column_name]), |
| 290 | 'COLUMN_POSITION' => (int) $row[$column_position], |
| 291 | 'DATA_TYPE' => $type, |
| 292 | 'DEFAULT' => $row[$column_def], |
| 293 | 'NULLABLE' => (bool) $row[$nullable], |
| 294 | 'LENGTH' => $row[$length], |
| 295 | 'SCALE' => $row[$scale], |
| 296 | 'PRECISION' => $row[$precision], |
| 297 | 'UNSIGNED' => null, // @todo |
| 298 | 'PRIMARY' => $isPrimary, |
| 299 | 'PRIMARY_POSITION' => $primaryPosition, |
| 300 | 'IDENTITY' => $identity |
| 301 | ); |
| 302 | } |
| 303 | return $desc; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * Adds an adapter-specific LIMIT clause to the SELECT statement. |
| 308 | * |
| 309 | * @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html |
| 310 | * |
| 311 | * @param string $sql |
| 312 | * @param integer $count |
| 313 | * @param integer $offset OPTIONAL |
| 314 | * @throws Zend_Db_Adapter_Exception |
| 315 | * @return string |
| 316 | */ |
| 317 | public function limit($sql, $count, $offset = 0) |
| 318 | { |
| 319 | $count = intval($count); |
| 320 | if ($count <= 0) { |
| 321 | /** @see Zend_Db_Adapter_Exception */ |
| 322 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 323 | throw new Zend_Db_Adapter_Exception("LIMIT argument count=$count is not valid"); |
| 324 | } |
| 325 | |
| 326 | $offset = intval($offset); |
| 327 | if ($offset < 0) { |
| 328 | /** @see Zend_Db_Adapter_Exception */ |
| 329 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 330 | throw new Zend_Db_Adapter_Exception("LIMIT argument offset=$offset is not valid"); |
| 331 | } |
| 332 | |
| 333 | $sql = preg_replace( |
| 334 | '/^SELECT\s+(DISTINCT\s)?/i', |
| 335 | 'SELECT $1TOP ' . ($count+$offset) . ' ', |
| 336 | $sql |
| 337 | ); |
| 338 | |
| 339 | if ($offset > 0) { |
| 340 | $orderby = stristr($sql, 'ORDER BY'); |
| 341 | |
| 342 | if ($orderby !== false) { |
| 343 | $orderParts = explode(',', substr($orderby, 8)); |
| 344 | $pregReplaceCount = null; |
| 345 | $orderbyInverseParts = array(); |
| 346 | foreach ($orderParts as $orderPart) { |
| 347 | $orderPart = rtrim($orderPart); |
| 348 | $inv = preg_replace('/\s+desc$/i', ' ASC', $orderPart, 1, $pregReplaceCount); |
| 349 | if ($pregReplaceCount) { |
| 350 | $orderbyInverseParts[] = $inv; |
| 351 | continue; |
| 352 | } |
| 353 | $inv = preg_replace('/\s+asc$/i', ' DESC', $orderPart, 1, $pregReplaceCount); |
| 354 | if ($pregReplaceCount) { |
| 355 | $orderbyInverseParts[] = $inv; |
| 356 | continue; |
| 357 | } else { |
| 358 | $orderbyInverseParts[] = $orderPart . ' DESC'; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | $orderbyInverse = 'ORDER BY ' . implode(', ', $orderbyInverseParts); |
| 363 | } |
| 364 | |
| 365 | |
| 366 | |
| 367 | |
| 368 | $sql = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $sql . ') AS inner_tbl'; |
| 369 | if ($orderby !== false) { |
| 370 | $sql .= ' ' . $orderbyInverse . ' '; |
| 371 | } |
| 372 | $sql .= ') AS outer_tbl'; |
| 373 | if ($orderby !== false) { |
| 374 | $sql .= ' ' . $orderby; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | return $sql; |
| 379 | } |
| 380 | |
| 381 | /** |
| 382 | * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column. |
| 383 | * |
| 384 | * As a convention, on RDBMS brands that support sequences |
| 385 | * (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence |
| 386 | * from the arguments and returns the last id generated by that sequence. |
| 387 | * On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method |
| 388 | * returns the last value generated for such a column, and the table name |
| 389 | * argument is disregarded. |
| 390 | * |
| 391 | * Microsoft SQL Server does not support sequences, so the arguments to |
| 392 | * this method are ignored. |
| 393 | * |
| 394 | * @param string $tableName OPTIONAL Name of table. |
| 395 | * @param string $primaryKey OPTIONAL Name of primary key column. |
| 396 | * @return string |
| 397 | * @throws Zend_Db_Adapter_Exception |
| 398 | */ |
| 399 | public function lastInsertId($tableName = null, $primaryKey = null) |
| 400 | { |
| 401 | $sql = 'SELECT SCOPE_IDENTITY()'; |
| 402 | return (int)$this->fetchOne($sql); |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * Retrieve server version in PHP style |
| 407 | * Pdo_Mssql doesn't support getAttribute(PDO::ATTR_SERVER_VERSION) |
| 408 | * @return string |
| 409 | */ |
| 410 | public function getServerVersion() |
| 411 | { |
| 412 | try { |
| 413 | $stmt = $this->query("SELECT SERVERPROPERTY('productversion')"); |
| 414 | $result = $stmt->fetchAll(Zend_Db::FETCH_NUM); |
| 415 | if (count($result)) { |
| 416 | return $result[0][0]; |
| 417 | } |
| 418 | return null; |
| 419 | } catch (PDOException $e) { |
| 420 | return null; |
| 421 | } |
| 422 | } |
| 423 | } |
| 424 |