/libraries/rokcommon/Doctrine/Connection/Mssql.php
PHP | 407 lines | 208 code | 53 blank | 146 comment | 32 complexity | 5d21ccc7d02bea9aabdc3dbe123eed1b MD5 | raw file
- <?php
- /*
- * $Id: Mssql.php 48519 2012-02-03 23:18:52Z btowles $
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This software consists of voluntary contributions made by many individuals
- * and is licensed under the LGPL. For more information, see
- * <http://www.doctrine-project.org>.
- */
- /**
- * Doctrine_Connection_Mssql
- *
- * @package Doctrine
- * @subpackage Connection
- * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
- * @author Konsta Vesterinen <kvesteri@cc.hut.fi>
- * @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
- * @version $Revision: 7659 $
- * @link www.doctrine-project.org
- * @since 1.0
- */
- class Doctrine_Connection_Mssql extends Doctrine_Connection_Common
- {
- /**
- * @var string $driverName the name of this connection driver
- */
- protected $driverName = 'Mssql';
- /**
- * the constructor
- *
- * @param Doctrine_Manager $manager
- * @param PDO $pdo database handle
- */
- public function __construct(Doctrine_Manager $manager, $adapter)
- {
- // initialize all driver options
- $this->supported = array(
- 'sequences' => 'emulated',
- 'indexes' => true,
- 'affected_rows' => true,
- 'transactions' => true,
- 'summary_functions' => true,
- 'order_by_text' => true,
- 'current_id' => 'emulated',
- 'limit_queries' => 'emulated',
- 'LOBs' => true,
- 'replace' => 'emulated',
- 'sub_selects' => true,
- 'auto_increment' => true,
- 'primary_key' => true,
- 'result_introspection' => true,
- 'prepared_statements' => 'emulated',
- );
- $this->properties['varchar_max_length'] = 8000;
- parent::__construct($manager, $adapter);
- }
- /**
- * quoteIdentifier
- * Quote a string so it can be safely used as a table / column name
- *
- * Quoting style depends on which database driver is being used.
- *
- * @param string $identifier identifier name to be quoted
- * @param bool $checkOption check the 'quote_identifier' option
- *
- * @return string quoted identifier string
- */
- public function quoteIdentifier($identifier, $checkOption = false)
- {
- if ($checkOption && ! $this->getAttribute(Doctrine_Core::ATTR_QUOTE_IDENTIFIER)) {
- return $identifier;
- }
-
- if (strpos($identifier, '.') !== false) {
- $parts = explode('.', $identifier);
- $quotedParts = array();
- foreach ($parts as $p) {
- $quotedParts[] = $this->quoteIdentifier($p);
- }
-
- return implode('.', $quotedParts);
- }
-
- return '[' . str_replace(']', ']]', $identifier) . ']';
- }
- /**
- * Adds an adapter-specific LIMIT clause to the SELECT statement.
- * [ original code borrowed from Zend Framework ]
- *
- * License available at: http://framework.zend.com/license
- *
- * Copyright (c) 2005-2008, Zend Technologies USA, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * * Neither the name of Zend Technologies USA, Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * @param string $query
- * @param mixed $limit
- * @param mixed $offset
- * @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
- * @return string
- */
- public function modifyLimitQuery($query, $limit = false, $offset = false, $isManip = false, $isSubQuery = false)
- {
- if ($limit > 0) {
- $count = intval($limit);
- $offset = intval($offset);
- if ($offset < 0) {
- throw new Doctrine_Connection_Exception("LIMIT argument offset=$offset is not valid");
- }
- $orderby = stristr($query, 'ORDER BY');
- if ($orderby !== false) {
- // Ticket #1835: Fix for ORDER BY alias
- // Ticket #2050: Fix for multiple ORDER BY clause
- $order = str_ireplace('ORDER BY', '', $orderby);
- $orders = explode(',', $order);
- for ($i = 0; $i < count($orders); $i++) {
- $sorts[$i] = (stripos($orders[$i], ' desc') !== false) ? 'DESC' : 'ASC';
- $orders[$i] = trim(preg_replace('/\s+(ASC|DESC)$/i', '', $orders[$i]));
- // find alias in query string
- $helper_string = stristr($query, $orders[$i]);
- $from_clause_pos = strpos($helper_string, ' FROM ');
- $fields_string = substr($helper_string, 0, $from_clause_pos + 1);
- $field_array = explode(',', $fields_string);
- $field_array = array_shift($field_array);
- $aux2 = spliti(' as ', $field_array);
- $aux2 = explode('.', end($aux2));
- $aliases[$i] = trim(end($aux2));
- }
- }
- // Ticket #1259: Fix for limit-subquery in MSSQL
- $selectRegExp = 'SELECT\s+';
- $selectReplace = 'SELECT ';
- if (preg_match('/^SELECT(\s+)DISTINCT/i', $query)) {
- $selectRegExp .= 'DISTINCT\s+';
- $selectReplace .= 'DISTINCT ';
- }
- $fields_string = substr($query, strlen($selectReplace), strpos($query, ' FROM ') - strlen($selectReplace));
- $field_array = explode(',', $fields_string);
- $field_array = array_shift($field_array);
- $aux2 = spliti(' as ', $field_array);
- $aux2 = explode('.', end($aux2));
- $key_field = trim(end($aux2));
- $query = preg_replace('/^'.$selectRegExp.'/i', $selectReplace . 'TOP ' . ($count + $offset) . ' ', $query);
- if ($isSubQuery === true) {
- $query = 'SELECT TOP ' . $count . ' ' . $this->quoteIdentifier('inner_tbl') . '.' . $key_field . ' FROM (' . $query . ') AS ' . $this->quoteIdentifier('inner_tbl');
- } else {
- $query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS ' . $this->quoteIdentifier('inner_tbl');
- }
- if ($orderby !== false) {
- $query .= ' ORDER BY ';
- for ($i = 0, $l = count($orders); $i < $l; $i++) {
- if ($i > 0) { // not first order clause
- $query .= ', ';
- }
- $query .= $this->quoteIdentifier('inner_tbl') . '.' . $aliases[$i] . ' ';
- $query .= (stripos($sorts[$i], 'asc') !== false) ? 'DESC' : 'ASC';
- }
- }
- if ($isSubQuery !== true) {
- $query .= ') AS ' . $this->quoteIdentifier('outer_tbl');
- if ($orderby !== false) {
- $query .= ' ORDER BY ';
- for ($i = 0, $l = count($orders); $i < $l; $i++) {
- if ($i > 0) { // not first order clause
- $query .= ', ';
- }
- $query .= $this->quoteIdentifier('outer_tbl') . '.' . $aliases[$i] . ' ' . $sorts[$i];
- }
- }
- }
- }
- return $query;
- }
- /**
- * Creates dbms specific LIMIT/OFFSET SQL for the subqueries that are used in the
- * context of the limit-subquery algorithm.
- *
- * @return string
- */
- public function modifyLimitSubquery(Doctrine_Table $rootTable, $query, $limit = false, $offset = false, $isManip = false)
- {
- return $this->modifyLimitQuery($query, $limit, $offset, $isManip, true);
- }
-
- /**
- * return version information about the server
- *
- * @param bool $native determines if the raw version string should be returned
- * @return array version information
- */
- public function getServerVersion($native = false)
- {
- if ($this->serverInfo) {
- $serverInfo = $this->serverInfo;
- } else {
- $query = 'SELECT @@VERSION';
- $serverInfo = $this->fetchOne($query);
- }
- // cache server_info
- $this->serverInfo = $serverInfo;
- if ( ! $native) {
- if (preg_match('/([0-9]+)\.([0-9]+)\.([0-9]+)/', $serverInfo, $tmp)) {
- $serverInfo = array(
- 'major' => $tmp[1],
- 'minor' => $tmp[2],
- 'patch' => $tmp[3],
- 'extra' => null,
- 'native' => $serverInfo,
- );
- } else {
- $serverInfo = array(
- 'major' => null,
- 'minor' => null,
- 'patch' => null,
- 'extra' => null,
- 'native' => $serverInfo,
- );
- }
- }
- return $serverInfo;
- }
- /**
- * Checks if there's a sequence that exists.
- *
- * @param string $seq_name The sequence name to verify.
- * @return boolean The value if the table exists or not
- */
- public function checkSequence($seqName)
- {
- $query = 'SELECT * FROM ' . $seqName;
- try {
- $this->exec($query);
- } catch(Doctrine_Connection_Exception $e) {
- if ($e->getPortableCode() == Doctrine_Core::ERR_NOSUCHTABLE) {
- return false;
- }
- throw $e;
- }
- return true;
- }
- /**
- * execute
- * @param string $query sql query
- * @param array $params query parameters
- *
- * @return PDOStatement|Doctrine_Adapter_Statement
- */
- public function execute($query, array $params = array())
- {
- if(! empty($params)) {
- $query = $this->replaceBoundParamsWithInlineValuesInQuery($query, $params);
- }
- return parent::execute($query, array());
- }
- /**
- * execute
- * @param string $query sql query
- * @param array $params query parameters
- *
- * @return PDOStatement|Doctrine_Adapter_Statement
- */
- public function exec($query, array $params = array())
- {
- if(! empty($params)) {
- $query = $this->replaceBoundParamsWithInlineValuesInQuery($query, $params);
- }
- return parent::exec($query, array());
- }
- /**
- * Replaces bound parameters and their placeholders with explicit values.
- *
- * Workaround for http://bugs.php.net/36561
- *
- * @param string $query
- * @param array $params
- */
- protected function replaceBoundParamsWithInlineValuesInQuery($query, array $params) {
- foreach($params as $key => $value) {
- if(is_null($value)) {
- $value = 'NULL';
- }
- else {
- $value = $this->quote($value);
- }
- $re = '/([=,\(][^\\\']*)(\?)/iU';
- $query = preg_replace($re, "\\1 {$value}", $query, 1);
- }
- return $query;
- }
- /**
- * Inserts a table row with specified data.
- *
- * @param Doctrine_Table $table The table to insert data into.
- * @param array $values An associative array containing column-value pairs.
- * Values can be strings or Doctrine_Expression instances.
- * @return integer the number of affected rows. Boolean false if empty value array was given,
- */
- public function insert(Doctrine_Table $table, array $fields)
- {
- $identifiers = $table->getIdentifierColumnNames();
- $settingNullIdentifier = false;
- $fields = array_change_key_case($fields);
- foreach($identifiers as $identifier) {
- $lcIdentifier = strtolower($identifier);
- if(array_key_exists($lcIdentifier, $fields)) {
- if(is_null($fields[$lcIdentifier])) {
- $settingNullIdentifier = true;
- unset($fields[$lcIdentifier]);
- }
- }
- }
- // MSSQL won't allow the setting of identifier columns to null, so insert a default record and then update it
- if ($settingNullIdentifier) {
- $count = $this->exec('INSERT INTO ' . $this->quoteIdentifier($table->getTableName()) . ' DEFAULT VALUES');
- if(! $count) {
- return $count;
- }
- $id = $this->lastInsertId($table->getTableName());
- return $this->update($table, $fields, array($id));
- }
- return parent::insert($table, $fields);
- }
- }