Db2
6 years ago
Mysqli
6 years ago
Oracle
6 years ago
Pdo
6 years ago
Sqlsrv
6 years ago
Abstract.php
6 years ago
Db2.php
6 years ago
Exception.php
6 years ago
Mysqli.php
6 years ago
Oracle.php
6 years ago
Sqlsrv.php
6 years ago
Sqlsrv.php
674 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: Sqlsrv.php 23775 2011-03-01 17:25:24Z ralph $ |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @see Zend_Db_Adapter_Abstract |
| 25 | */ |
| 26 | // require_once 'Zend/Db/Adapter/Abstract.php'; |
| 27 | |
| 28 | /** |
| 29 | * @see Zend_Db_Statement_Sqlsrv |
| 30 | */ |
| 31 | // require_once 'Zend/Db/Statement/Sqlsrv.php'; |
| 32 | |
| 33 | /** |
| 34 | * @category Zend |
| 35 | * @package Zend_Db |
| 36 | * @subpackage Adapter |
| 37 | * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com) |
| 38 | * @license http://framework.zend.com/license/new-bsd New BSD License |
| 39 | */ |
| 40 | class Zend_Db_Adapter_Sqlsrv extends Zend_Db_Adapter_Abstract |
| 41 | { |
| 42 | /** |
| 43 | * User-provided configuration. |
| 44 | * |
| 45 | * Basic keys are: |
| 46 | * |
| 47 | * username => (string) Connect to the database as this username. |
| 48 | * password => (string) Password associated with the username. |
| 49 | * dbname => The name of the local SQL Server instance |
| 50 | * |
| 51 | * @var array |
| 52 | */ |
| 53 | protected $_config = array( |
| 54 | 'dbname' => null, |
| 55 | 'username' => null, |
| 56 | 'password' => null, |
| 57 | ); |
| 58 | |
| 59 | /** |
| 60 | * Last insert id from INSERT query |
| 61 | * |
| 62 | * @var int |
| 63 | */ |
| 64 | protected $_lastInsertId; |
| 65 | |
| 66 | /** |
| 67 | * Query used to fetch last insert id |
| 68 | * |
| 69 | * @var string |
| 70 | */ |
| 71 | protected $_lastInsertSQL = 'SELECT SCOPE_IDENTITY() as Current_Identity'; |
| 72 | |
| 73 | /** |
| 74 | * Keys are UPPERCASE SQL datatypes or the constants |
| 75 | * Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE. |
| 76 | * |
| 77 | * Values are: |
| 78 | * 0 = 32-bit integer |
| 79 | * 1 = 64-bit integer |
| 80 | * 2 = float or decimal |
| 81 | * |
| 82 | * @var array Associative array of datatypes to values 0, 1, or 2. |
| 83 | */ |
| 84 | protected $_numericDataTypes = array( |
| 85 | Zend_Db::INT_TYPE => Zend_Db::INT_TYPE, |
| 86 | Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE, |
| 87 | Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE, |
| 88 | 'INT' => Zend_Db::INT_TYPE, |
| 89 | 'SMALLINT' => Zend_Db::INT_TYPE, |
| 90 | 'TINYINT' => Zend_Db::INT_TYPE, |
| 91 | 'BIGINT' => Zend_Db::BIGINT_TYPE, |
| 92 | 'DECIMAL' => Zend_Db::FLOAT_TYPE, |
| 93 | 'FLOAT' => Zend_Db::FLOAT_TYPE, |
| 94 | 'MONEY' => Zend_Db::FLOAT_TYPE, |
| 95 | 'NUMERIC' => Zend_Db::FLOAT_TYPE, |
| 96 | 'REAL' => Zend_Db::FLOAT_TYPE, |
| 97 | 'SMALLMONEY' => Zend_Db::FLOAT_TYPE, |
| 98 | ); |
| 99 | |
| 100 | /** |
| 101 | * Default class name for a DB statement. |
| 102 | * |
| 103 | * @var string |
| 104 | */ |
| 105 | protected $_defaultStmtClass = 'Zend_Db_Statement_Sqlsrv'; |
| 106 | |
| 107 | /** |
| 108 | * Creates a connection resource. |
| 109 | * |
| 110 | * @return void |
| 111 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 112 | */ |
| 113 | protected function _connect() |
| 114 | { |
| 115 | if (is_resource($this->_connection)) { |
| 116 | // connection already exists |
| 117 | return; |
| 118 | } |
| 119 | |
| 120 | if (!extension_loaded('sqlsrv')) { |
| 121 | /** |
| 122 | * @see Zend_Db_Adapter_Sqlsrv_Exception |
| 123 | */ |
| 124 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 125 | throw new Zend_Db_Adapter_Sqlsrv_Exception('The Sqlsrv extension is required for this adapter but the extension is not loaded'); |
| 126 | } |
| 127 | |
| 128 | $serverName = $this->_config['host']; |
| 129 | if (isset($this->_config['port'])) { |
| 130 | $port = (integer) $this->_config['port']; |
| 131 | $serverName .= ', ' . $port; |
| 132 | } |
| 133 | |
| 134 | $connectionInfo = array( |
| 135 | 'Database' => $this->_config['dbname'], |
| 136 | ); |
| 137 | |
| 138 | if (isset($this->_config['username']) && isset($this->_config['password'])) |
| 139 | { |
| 140 | $connectionInfo += array( |
| 141 | 'UID' => $this->_config['username'], |
| 142 | 'PWD' => $this->_config['password'], |
| 143 | ); |
| 144 | } |
| 145 | // else - windows authentication |
| 146 | |
| 147 | if (!empty($this->_config['driver_options'])) { |
| 148 | foreach ($this->_config['driver_options'] as $option => $value) { |
| 149 | // A value may be a constant. |
| 150 | if (is_string($value)) { |
| 151 | $constantName = strtoupper($value); |
| 152 | if (defined($constantName)) { |
| 153 | $connectionInfo[$option] = constant($constantName); |
| 154 | } else { |
| 155 | $connectionInfo[$option] = $value; |
| 156 | } |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | $this->_connection = sqlsrv_connect($serverName, $connectionInfo); |
| 162 | |
| 163 | if (!$this->_connection) { |
| 164 | /** |
| 165 | * @see Zend_Db_Adapter_Sqlsrv_Exception |
| 166 | */ |
| 167 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 168 | throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors()); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Check for config options that are mandatory. |
| 174 | * Throw exceptions if any are missing. |
| 175 | * |
| 176 | * @param array $config |
| 177 | * @throws Zend_Db_Adapter_Exception |
| 178 | */ |
| 179 | protected function _checkRequiredOptions(array $config) |
| 180 | { |
| 181 | // we need at least a dbname |
| 182 | if (! array_key_exists('dbname', $config)) { |
| 183 | /** @see Zend_Db_Adapter_Exception */ |
| 184 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 185 | throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'dbname' that names the database instance"); |
| 186 | } |
| 187 | |
| 188 | if (! array_key_exists('password', $config) && array_key_exists('username', $config)) { |
| 189 | /** |
| 190 | * @see Zend_Db_Adapter_Exception |
| 191 | */ |
| 192 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 193 | throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'password' for login credentials. |
| 194 | If Windows Authentication is desired, both keys 'username' and 'password' should be ommited from config."); |
| 195 | } |
| 196 | |
| 197 | if (array_key_exists('password', $config) && !array_key_exists('username', $config)) { |
| 198 | /** |
| 199 | * @see Zend_Db_Adapter_Exception |
| 200 | */ |
| 201 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 202 | throw new Zend_Db_Adapter_Exception("Configuration array must have a key for 'username' for login credentials. |
| 203 | If Windows Authentication is desired, both keys 'username' and 'password' should be ommited from config."); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Set the transaction isoltion level. |
| 209 | * |
| 210 | * @param integer|null $level A fetch mode from SQLSRV_TXN_*. |
| 211 | * @return true |
| 212 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 213 | */ |
| 214 | public function setTransactionIsolationLevel($level = null) |
| 215 | { |
| 216 | $this->_connect(); |
| 217 | $sql = null; |
| 218 | |
| 219 | // Default transaction level in sql server |
| 220 | if ($level === null) |
| 221 | { |
| 222 | $level = SQLSRV_TXN_READ_COMMITTED; |
| 223 | } |
| 224 | |
| 225 | switch ($level) { |
| 226 | case SQLSRV_TXN_READ_UNCOMMITTED: |
| 227 | $sql = "READ UNCOMMITTED"; |
| 228 | break; |
| 229 | case SQLSRV_TXN_READ_COMMITTED: |
| 230 | $sql = "READ COMMITTED"; |
| 231 | break; |
| 232 | case SQLSRV_TXN_REPEATABLE_READ: |
| 233 | $sql = "REPEATABLE READ"; |
| 234 | break; |
| 235 | case SQLSRV_TXN_SNAPSHOT: |
| 236 | $sql = "SNAPSHOT"; |
| 237 | break; |
| 238 | case SQLSRV_TXN_SERIALIZABLE: |
| 239 | $sql = "SERIALIZABLE"; |
| 240 | break; |
| 241 | default: |
| 242 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 243 | throw new Zend_Db_Adapter_Sqlsrv_Exception("Invalid transaction isolation level mode '$level' specified"); |
| 244 | } |
| 245 | |
| 246 | if (!sqlsrv_query($this->_connection, "SET TRANSACTION ISOLATION LEVEL $sql;")) { |
| 247 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 248 | throw new Zend_Db_Adapter_Sqlsrv_Exception("Transaction cannot be changed to '$level'"); |
| 249 | } |
| 250 | |
| 251 | return true; |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Test if a connection is active |
| 256 | * |
| 257 | * @return boolean |
| 258 | */ |
| 259 | public function isConnected() |
| 260 | { |
| 261 | return (is_resource($this->_connection) |
| 262 | && (get_resource_type($this->_connection) == 'SQL Server Connection') |
| 263 | ); |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Force the connection to close. |
| 268 | * |
| 269 | * @return void |
| 270 | */ |
| 271 | public function closeConnection() |
| 272 | { |
| 273 | if ($this->isConnected()) { |
| 274 | sqlsrv_close($this->_connection); |
| 275 | } |
| 276 | $this->_connection = null; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Returns an SQL statement for preparation. |
| 281 | * |
| 282 | * @param string $sql The SQL statement with placeholders. |
| 283 | * @return Zend_Db_Statement_Sqlsrv |
| 284 | */ |
| 285 | public function prepare($sql) |
| 286 | { |
| 287 | $this->_connect(); |
| 288 | $stmtClass = $this->_defaultStmtClass; |
| 289 | |
| 290 | if (!class_exists($stmtClass)) { |
| 291 | /** |
| 292 | * @see Zend_Loader |
| 293 | */ |
| 294 | // require_once 'Zend/Loader.php'; |
| 295 | Zend_Loader::loadClass($stmtClass); |
| 296 | } |
| 297 | |
| 298 | $stmt = new $stmtClass($this, $sql); |
| 299 | $stmt->setFetchMode($this->_fetchMode); |
| 300 | return $stmt; |
| 301 | } |
| 302 | |
| 303 | /** |
| 304 | * Quote a raw string. |
| 305 | * |
| 306 | * @param string $value Raw string |
| 307 | * @return string Quoted string |
| 308 | */ |
| 309 | protected function _quote($value) |
| 310 | { |
| 311 | if (is_int($value)) { |
| 312 | return $value; |
| 313 | } elseif (is_float($value)) { |
| 314 | return sprintf('%F', $value); |
| 315 | } |
| 316 | |
| 317 | return "'" . str_replace("'", "''", $value) . "'"; |
| 318 | } |
| 319 | |
| 320 | /** |
| 321 | * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column. |
| 322 | * |
| 323 | * As a convention, on RDBMS brands that support sequences |
| 324 | * (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence |
| 325 | * from the arguments and returns the last id generated by that sequence. |
| 326 | * On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method |
| 327 | * returns the last value generated for such a column, and the table name |
| 328 | * argument is disregarded. |
| 329 | * |
| 330 | * @param string $tableName OPTIONAL Name of table. |
| 331 | * @param string $primaryKey OPTIONAL Name of primary key column. |
| 332 | * @return string |
| 333 | */ |
| 334 | public function lastInsertId($tableName = null, $primaryKey = null) |
| 335 | { |
| 336 | if ($tableName) { |
| 337 | $tableName = $this->quote($tableName); |
| 338 | $sql = 'SELECT IDENT_CURRENT (' . $tableName . ') as Current_Identity'; |
| 339 | return (string) $this->fetchOne($sql); |
| 340 | } |
| 341 | |
| 342 | if ($this->_lastInsertId > 0) { |
| 343 | return (string) $this->_lastInsertId; |
| 344 | } |
| 345 | |
| 346 | $sql = $this->_lastInsertSQL; |
| 347 | return (string) $this->fetchOne($sql); |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * Inserts a table row with specified data. |
| 352 | * |
| 353 | * @param mixed $table The table to insert data into. |
| 354 | * @param array $bind Column-value pairs. |
| 355 | * @return int The number of affected rows. |
| 356 | */ |
| 357 | public function insert($table, array $bind) |
| 358 | { |
| 359 | // extract and quote col names from the array keys |
| 360 | $cols = array(); |
| 361 | $vals = array(); |
| 362 | foreach ($bind as $col => $val) { |
| 363 | $cols[] = $this->quoteIdentifier($col, true); |
| 364 | if ($val instanceof Zend_Db_Expr) { |
| 365 | $vals[] = $val->__toString(); |
| 366 | unset($bind[$col]); |
| 367 | } else { |
| 368 | $vals[] = '?'; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | // build the statement |
| 373 | $sql = "INSERT INTO " |
| 374 | . $this->quoteIdentifier($table, true) |
| 375 | . ' (' . implode(', ', $cols) . ') ' |
| 376 | . 'VALUES (' . implode(', ', $vals) . ')' |
| 377 | . ' ' . $this->_lastInsertSQL; |
| 378 | |
| 379 | // execute the statement and return the number of affected rows |
| 380 | $stmt = $this->query($sql, array_values($bind)); |
| 381 | $result = $stmt->rowCount(); |
| 382 | |
| 383 | $stmt->nextRowset(); |
| 384 | |
| 385 | $this->_lastInsertId = $stmt->fetchColumn(); |
| 386 | |
| 387 | return $result; |
| 388 | } |
| 389 | |
| 390 | /** |
| 391 | * Returns a list of the tables in the database. |
| 392 | * |
| 393 | * @return array |
| 394 | */ |
| 395 | public function listTables() |
| 396 | { |
| 397 | $this->_connect(); |
| 398 | $sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name"; |
| 399 | return $this->fetchCol($sql); |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Returns the column descriptions for a table. |
| 404 | * |
| 405 | * The return value is an associative array keyed by the column name, |
| 406 | * as returned by the RDBMS. |
| 407 | * |
| 408 | * The value of each array element is an associative array |
| 409 | * with the following keys: |
| 410 | * |
| 411 | * SCHEMA_NAME => string; name of schema |
| 412 | * TABLE_NAME => string; |
| 413 | * COLUMN_NAME => string; column name |
| 414 | * COLUMN_POSITION => number; ordinal position of column in table |
| 415 | * DATA_TYPE => string; SQL datatype name of column |
| 416 | * DEFAULT => string; default expression of column, null if none |
| 417 | * NULLABLE => boolean; true if column can have nulls |
| 418 | * LENGTH => number; length of CHAR/VARCHAR |
| 419 | * SCALE => number; scale of NUMERIC/DECIMAL |
| 420 | * PRECISION => number; precision of NUMERIC/DECIMAL |
| 421 | * UNSIGNED => boolean; unsigned property of an integer type |
| 422 | * PRIMARY => boolean; true if column is part of the primary key |
| 423 | * PRIMARY_POSITION => integer; position of column in primary key |
| 424 | * IDENTITY => integer; true if column is auto-generated with unique values |
| 425 | * |
| 426 | * @todo Discover integer unsigned property. |
| 427 | * |
| 428 | * @param string $tableName |
| 429 | * @param string $schemaName OPTIONAL |
| 430 | * @return array |
| 431 | */ |
| 432 | public function describeTable($tableName, $schemaName = null) |
| 433 | { |
| 434 | /** |
| 435 | * Discover metadata information about this table. |
| 436 | */ |
| 437 | $sql = "exec sp_columns @table_name = " . $this->quoteIdentifier($tableName, true); |
| 438 | $stmt = $this->query($sql); |
| 439 | $result = $stmt->fetchAll(Zend_Db::FETCH_NUM); |
| 440 | |
| 441 | // ZF-7698 |
| 442 | $stmt->closeCursor(); |
| 443 | |
| 444 | if (count($result) == 0) { |
| 445 | return array(); |
| 446 | } |
| 447 | |
| 448 | $owner = 1; |
| 449 | $table_name = 2; |
| 450 | $column_name = 3; |
| 451 | $type_name = 5; |
| 452 | $precision = 6; |
| 453 | $length = 7; |
| 454 | $scale = 8; |
| 455 | $nullable = 10; |
| 456 | $column_def = 12; |
| 457 | $column_position = 16; |
| 458 | |
| 459 | /** |
| 460 | * Discover primary key column(s) for this table. |
| 461 | */ |
| 462 | $tableOwner = $result[0][$owner]; |
| 463 | $sql = "exec sp_pkeys @table_owner = " . $tableOwner |
| 464 | . ", @table_name = " . $this->quoteIdentifier($tableName, true); |
| 465 | $stmt = $this->query($sql); |
| 466 | |
| 467 | $primaryKeysResult = $stmt->fetchAll(Zend_Db::FETCH_NUM); |
| 468 | $primaryKeyColumn = array(); |
| 469 | |
| 470 | // Per http://msdn.microsoft.com/en-us/library/ms189813.aspx, |
| 471 | // results from sp_keys stored procedure are: |
| 472 | // 0=TABLE_QUALIFIER 1=TABLE_OWNER 2=TABLE_NAME 3=COLUMN_NAME 4=KEY_SEQ 5=PK_NAME |
| 473 | |
| 474 | $pkey_column_name = 3; |
| 475 | $pkey_key_seq = 4; |
| 476 | foreach ($primaryKeysResult as $pkeysRow) { |
| 477 | $primaryKeyColumn[$pkeysRow[$pkey_column_name]] = $pkeysRow[$pkey_key_seq]; |
| 478 | } |
| 479 | |
| 480 | $desc = array(); |
| 481 | $p = 1; |
| 482 | foreach ($result as $key => $row) { |
| 483 | $identity = false; |
| 484 | $words = explode(' ', $row[$type_name], 2); |
| 485 | if (isset($words[0])) { |
| 486 | $type = $words[0]; |
| 487 | if (isset($words[1])) { |
| 488 | $identity = (bool) preg_match('/identity/', $words[1]); |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | $isPrimary = array_key_exists($row[$column_name], $primaryKeyColumn); |
| 493 | if ($isPrimary) { |
| 494 | $primaryPosition = $primaryKeyColumn[$row[$column_name]]; |
| 495 | } else { |
| 496 | $primaryPosition = null; |
| 497 | } |
| 498 | |
| 499 | $desc[$this->foldCase($row[$column_name])] = array( |
| 500 | 'SCHEMA_NAME' => null, // @todo |
| 501 | 'TABLE_NAME' => $this->foldCase($row[$table_name]), |
| 502 | 'COLUMN_NAME' => $this->foldCase($row[$column_name]), |
| 503 | 'COLUMN_POSITION' => (int) $row[$column_position], |
| 504 | 'DATA_TYPE' => $type, |
| 505 | 'DEFAULT' => $row[$column_def], |
| 506 | 'NULLABLE' => (bool) $row[$nullable], |
| 507 | 'LENGTH' => $row[$length], |
| 508 | 'SCALE' => $row[$scale], |
| 509 | 'PRECISION' => $row[$precision], |
| 510 | 'UNSIGNED' => null, // @todo |
| 511 | 'PRIMARY' => $isPrimary, |
| 512 | 'PRIMARY_POSITION' => $primaryPosition, |
| 513 | 'IDENTITY' => $identity, |
| 514 | ); |
| 515 | } |
| 516 | |
| 517 | return $desc; |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * Leave autocommit mode and begin a transaction. |
| 522 | * |
| 523 | * @return void |
| 524 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 525 | */ |
| 526 | protected function _beginTransaction() |
| 527 | { |
| 528 | if (!sqlsrv_begin_transaction($this->_connection)) { |
| 529 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 530 | throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors()); |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | /** |
| 535 | * Commit a transaction and return to autocommit mode. |
| 536 | * |
| 537 | * @return void |
| 538 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 539 | */ |
| 540 | protected function _commit() |
| 541 | { |
| 542 | if (!sqlsrv_commit($this->_connection)) { |
| 543 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 544 | throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors()); |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | /** |
| 549 | * Roll back a transaction and return to autocommit mode. |
| 550 | * |
| 551 | * @return void |
| 552 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 553 | */ |
| 554 | protected function _rollBack() |
| 555 | { |
| 556 | if (!sqlsrv_rollback($this->_connection)) { |
| 557 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 558 | throw new Zend_Db_Adapter_Sqlsrv_Exception(sqlsrv_errors()); |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | /** |
| 563 | * Set the fetch mode. |
| 564 | * |
| 565 | * @todo Support FETCH_CLASS and FETCH_INTO. |
| 566 | * |
| 567 | * @param integer $mode A fetch mode. |
| 568 | * @return void |
| 569 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 570 | */ |
| 571 | public function setFetchMode($mode) |
| 572 | { |
| 573 | switch ($mode) { |
| 574 | case Zend_Db::FETCH_NUM: // seq array |
| 575 | case Zend_Db::FETCH_ASSOC: // assoc array |
| 576 | case Zend_Db::FETCH_BOTH: // seq+assoc array |
| 577 | case Zend_Db::FETCH_OBJ: // object |
| 578 | $this->_fetchMode = $mode; |
| 579 | break; |
| 580 | case Zend_Db::FETCH_BOUND: // bound to PHP variable |
| 581 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 582 | throw new Zend_Db_Adapter_Sqlsrv_Exception('FETCH_BOUND is not supported yet'); |
| 583 | break; |
| 584 | default: |
| 585 | // require_once 'Zend/Db/Adapter/Sqlsrv/Exception.php'; |
| 586 | throw new Zend_Db_Adapter_Sqlsrv_Exception("Invalid fetch mode '$mode' specified"); |
| 587 | break; |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | /** |
| 592 | * Adds an adapter-specific LIMIT clause to the SELECT statement. |
| 593 | * |
| 594 | * @param string $sql |
| 595 | * @param integer $count |
| 596 | * @param integer $offset OPTIONAL |
| 597 | * @return string |
| 598 | * @throws Zend_Db_Adapter_Sqlsrv_Exception |
| 599 | */ |
| 600 | public function limit($sql, $count, $offset = 0) |
| 601 | { |
| 602 | $count = intval($count); |
| 603 | if ($count <= 0) { |
| 604 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 605 | throw new Zend_Db_Adapter_Exception("LIMIT argument count=$count is not valid"); |
| 606 | } |
| 607 | |
| 608 | $offset = intval($offset); |
| 609 | if ($offset < 0) { |
| 610 | /** @see Zend_Db_Adapter_Exception */ |
| 611 | // require_once 'Zend/Db/Adapter/Exception.php'; |
| 612 | throw new Zend_Db_Adapter_Exception("LIMIT argument offset=$offset is not valid"); |
| 613 | } |
| 614 | |
| 615 | if ($offset == 0) { |
| 616 | $sql = preg_replace('/^SELECT\s/i', 'SELECT TOP ' . $count . ' ', $sql); |
| 617 | } else { |
| 618 | $orderby = stristr($sql, 'ORDER BY'); |
| 619 | |
| 620 | if (!$orderby) { |
| 621 | $over = 'ORDER BY (SELECT 0)'; |
| 622 | } else { |
| 623 | $over = preg_replace('/\"[^,]*\".\"([^,]*)\"/i', '"inner_tbl"."$1"', $orderby); |
| 624 | } |
| 625 | |
| 626 | // Remove ORDER BY clause from $sql |
| 627 | $sql = preg_replace('/\s+ORDER BY(.*)/', '', $sql); |
| 628 | |
| 629 | // Add ORDER BY clause as an argument for ROW_NUMBER() |
| 630 | $sql = "SELECT ROW_NUMBER() OVER ($over) AS \"ZEND_DB_ROWNUM\", * FROM ($sql) AS inner_tbl"; |
| 631 | |
| 632 | $start = $offset + 1; |
| 633 | $end = $offset + $count; |
| 634 | |
| 635 | $sql = "WITH outer_tbl AS ($sql) SELECT * FROM outer_tbl WHERE \"ZEND_DB_ROWNUM\" BETWEEN $start AND $end"; |
| 636 | } |
| 637 | |
| 638 | return $sql; |
| 639 | } |
| 640 | |
| 641 | /** |
| 642 | * Check if the adapter supports real SQL parameters. |
| 643 | * |
| 644 | * @param string $type 'positional' or 'named' |
| 645 | * @return bool |
| 646 | */ |
| 647 | public function supportsParameters($type) |
| 648 | { |
| 649 | if ($type == 'positional') { |
| 650 | return true; |
| 651 | } |
| 652 | |
| 653 | // if its 'named' or anything else |
| 654 | return false; |
| 655 | } |
| 656 | |
| 657 | /** |
| 658 | * Retrieve server version in PHP style |
| 659 | * |
| 660 | * @return string |
| 661 | */ |
| 662 | public function getServerVersion() |
| 663 | { |
| 664 | $this->_connect(); |
| 665 | $serverInfo = sqlsrv_server_info($this->_connection); |
| 666 | |
| 667 | if ($serverInfo !== false) { |
| 668 | return $serverInfo['SQLServerVersion']; |
| 669 | } |
| 670 | |
| 671 | return null; |
| 672 | } |
| 673 | } |
| 674 |