2008-08-01 22:46:14 +04:00
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<?php
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2009-05-26 22:14:19 +04:00
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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2008-08-01 22:46:14 +04:00
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2009-01-22 22:38:10 +03:00
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namespace Doctrine\DBAL\Platforms;
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2008-09-12 12:51:56 +04:00
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2010-02-20 01:33:54 +03:00
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use Doctrine\DBAL\Schema\TableDiff;
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use Doctrine\DBAL\DBALException;
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2009-05-26 22:14:19 +04:00
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/**
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* The MsSqlPlatform provides the behavior, features and SQL dialect of the
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* MySQL database platform.
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*
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* @since 2.0
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* @author Roman Borschel <roman@code-factory.org>
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* @author Jonathan H. Wage <jonwage@gmail.com>
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2010-02-11 17:29:12 +03:00
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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2009-05-26 22:14:19 +04:00
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*/
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2009-01-22 22:38:10 +03:00
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class MsSqlPlatform extends AbstractPlatform
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2010-02-11 17:29:12 +03:00
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{
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2008-08-01 22:46:14 +04:00
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/**
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* Adds an adapter-specific LIMIT clause to the SELECT statement.
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* [ borrowed from Zend Framework ]
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*
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* @param string $query
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* @param mixed $limit
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* @param mixed $offset
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* @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
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* @return string
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* @override
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*/
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2009-05-26 22:14:19 +04:00
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public function writeLimitClause($query, $limit = false, $offset = false)
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2008-08-01 22:46:14 +04:00
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{
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if ($limit > 0) {
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$count = intval($limit);
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$offset = intval($offset);
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if ($offset < 0) {
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2010-02-20 01:33:54 +03:00
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throw DBALException::limitOffsetInvalid($offset);
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2008-08-01 22:46:14 +04:00
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}
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$orderby = stristr($query, 'ORDER BY');
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if ($orderby !== false) {
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$sort = (stripos($orderby, 'desc') !== false) ? 'desc' : 'asc';
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$order = str_ireplace('ORDER BY', '', $orderby);
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$order = trim(preg_replace('/ASC|DESC/i', '', $order));
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}
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$query = preg_replace('/^SELECT\s/i', 'SELECT TOP ' . ($count+$offset) . ' ', $query);
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$query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS inner_tbl';
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if ($orderby !== false) {
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$query .= ' ORDER BY ' . $order . ' ';
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$query .= (stripos($sort, 'asc') !== false) ? 'DESC' : 'ASC';
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}
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$query .= ') AS outer_tbl';
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if ($orderby !== false) {
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$query .= ' ORDER BY ' . $order . ' ' . $sort;
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}
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return $query;
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}
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return $query;
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}
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2009-05-26 22:14:19 +04:00
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2009-11-02 18:08:51 +03:00
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/**
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* Gets the sql statements for altering an existing table.
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*
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* The method returns an array of sql statements, since some platforms need several statements.
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*
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2009-12-06 12:47:54 +03:00
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* @param TableDiff $diff
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2009-11-02 18:08:51 +03:00
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* @return array
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*/
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2010-03-05 19:35:00 +03:00
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public function getAlterTableSQL(TableDiff $diff)
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2009-05-26 22:14:19 +04:00
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{
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2009-12-06 12:47:54 +03:00
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$queryParts = array();
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if ($diff->newName !== false) {
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$queryParts[] = 'RENAME TO ' . $diff->newName;
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2009-05-26 22:14:19 +04:00
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}
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2009-12-06 12:47:54 +03:00
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foreach ($diff->addedColumns AS $fieldName => $column) {
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2010-03-05 19:35:00 +03:00
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$queryParts[] = 'ADD ' . $this->getColumnDeclarationSQL($column->getName(), $column->toArray());
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2009-05-26 22:14:19 +04:00
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}
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2009-12-06 12:47:54 +03:00
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foreach ($diff->removedColumns AS $column) {
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$queryParts[] = 'DROP ' . $column->getName();
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2009-05-26 22:14:19 +04:00
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}
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2009-12-06 12:47:54 +03:00
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foreach ($diff->changedColumns AS $columnDiff) {
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/* @var $columnDiff Doctrine\DBAL\Schema\ColumnDiff */
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$column = $columnDiff->column;
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$queryParts[] = 'CHANGE ' . ($columnDiff->oldColumnName) . ' '
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2010-03-05 19:35:00 +03:00
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. $this->getColumnDeclarationSQL($column->getName(), $column->toArray());
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2009-05-26 22:14:19 +04:00
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}
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2009-12-06 12:47:54 +03:00
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foreach ($diff->renamedColumns AS $oldColumnName => $column) {
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$queryParts[] = 'CHANGE ' . $oldColumnName . ' '
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2010-03-05 19:35:00 +03:00
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. $this->getColumnDeclarationSQL($column->getName(), $column->toArray());
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2009-05-26 22:14:19 +04:00
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}
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2009-12-06 16:00:49 +03:00
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$sql = array();
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2009-12-06 15:13:15 +03:00
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if (count($queryParts) > 0) {
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$sql[] = 'ALTER TABLE ' . $diff->name . ' ' . implode(", ", $queryParts);
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2009-05-26 22:14:19 +04:00
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}
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2010-03-05 19:35:00 +03:00
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$sql = array_merge($sql, $this->_getAlterTableIndexForeignKeySQL($diff));
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2009-12-06 15:13:15 +03:00
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return $sql;
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2009-05-26 22:14:19 +04:00
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}
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2008-08-01 22:46:14 +04:00
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2009-05-26 22:14:19 +04:00
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/**
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* Returns the regular expression operator.
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*
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* @return string
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* @override
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*/
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public function getRegexpExpression()
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{
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return 'RLIKE';
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}
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2008-08-01 22:46:14 +04:00
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/**
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* Return string to call a variable with the current timestamp inside an SQL statement
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* There are three special variables for current date and time:
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* - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
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* - CURRENT_DATE (date, DATE type)
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* - CURRENT_TIME (time, TIME type)
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*
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* @return string to call a variable with the current timestamp
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* @override
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*/
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public function getNowExpression($type = 'timestamp')
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{
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switch ($type) {
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case 'time':
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case 'date':
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case 'timestamp':
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default:
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return 'GETDATE()';
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}
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}
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/**
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* return string to call a function to get a substring inside an SQL statement
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*
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* @return string to call a function to get a substring
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* @override
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*/
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public function getSubstringExpression($value, $position, $length = null)
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{
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if ( ! is_null($length)) {
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return 'SUBSTRING(' . $value . ', ' . $position . ', ' . $length . ')';
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}
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return 'SUBSTRING(' . $value . ', ' . $position . ', LEN(' . $value . ') - ' . $position . ' + 1)';
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}
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/**
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* Returns string to concatenate two or more string parameters
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*
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* @param string $arg1
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* @param string $arg2
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* @param string $values...
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* @return string to concatenate two strings
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* @override
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*/
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public function getConcatExpression()
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{
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$args = func_get_args();
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return '(' . implode(' + ', $args) . ')';
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}
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/**
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* Returns global unique identifier
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*
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* @return string to get global unique identifier
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* @override
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*/
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public function getGuidExpression()
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{
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return 'NEWID()';
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}
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2009-05-26 22:14:19 +04:00
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/**
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* Whether the platform prefers identity columns for ID generation.
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* MsSql prefers "autoincrement" identity columns since sequences can only
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* be emulated with a table.
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*
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* @return boolean
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* @override
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*/
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public function prefersIdentityColumns()
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{
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return true;
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}
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2008-08-01 22:46:14 +04:00
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2009-05-26 22:14:19 +04:00
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/**
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* Whether the platform supports identity columns.
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* MsSql supports this through AUTO_INCREMENT columns.
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*
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* @return boolean
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* @override
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*/
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public function supportsIdentityColumns()
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{
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return true;
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}
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/**
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* Whether the platform supports savepoints. MsSql does not.
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*
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* @return boolean
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* @override
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*/
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public function supportsSavepoints()
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{
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return false;
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}
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2010-03-05 19:35:00 +03:00
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public function getShowDatabasesSQL()
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2009-05-26 22:14:19 +04:00
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{
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return 'SHOW DATABASES';
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}
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2009-05-29 01:34:35 +04:00
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2010-03-05 19:35:00 +03:00
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public function getListTablesSQL()
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2009-05-26 22:14:19 +04:00
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{
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return 'SHOW TABLES';
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}
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/**
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* create a new database
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2008-09-12 12:51:56 +04:00
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*
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2009-05-26 22:14:19 +04:00
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* @param string $name name of the database that should be created
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* @return string
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2008-09-12 12:51:56 +04:00
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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public function getCreateDatabaseSQL($name)
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2008-09-12 12:51:56 +04:00
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{
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2009-08-11 14:51:38 +04:00
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return 'CREATE DATABASE ' . $name;
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2008-09-12 12:51:56 +04:00
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}
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2009-05-26 22:14:19 +04:00
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/**
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* drop an existing database
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*
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* @param string $name name of the database that should be dropped
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* @return string
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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public function getDropDatabaseSQL($name)
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2009-05-26 22:14:19 +04:00
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{
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2009-08-11 14:51:38 +04:00
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return 'DROP DATABASE ' . $name;
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2009-05-26 22:14:19 +04:00
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}
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2010-03-05 19:35:00 +03:00
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public function getSetTransactionIsolationSQL($level)
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2008-09-12 21:25:38 +04:00
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{
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2010-03-05 19:35:00 +03:00
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return 'SET TRANSACTION ISOLATION LEVEL ' . $this->_getTransactionIsolationLevelSQL($level);
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2008-09-12 21:25:38 +04:00
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}
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2009-09-05 06:23:24 +04:00
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/**
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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public function getIntegerTypeDeclarationSQL(array $field)
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2009-05-26 22:14:19 +04:00
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{
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2010-03-05 19:35:00 +03:00
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return 'INT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
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2009-05-26 22:14:19 +04:00
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}
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2009-09-05 06:23:24 +04:00
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/**
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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public function getBigIntTypeDeclarationSQL(array $field)
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2009-05-26 22:14:19 +04:00
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{
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2010-03-05 19:35:00 +03:00
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return 'BIGINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
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2009-05-26 22:14:19 +04:00
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}
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2009-09-05 06:23:24 +04:00
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/**
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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public function getSmallIntTypeDeclarationSQL(array $field)
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2009-05-26 22:14:19 +04:00
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{
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2010-03-05 19:35:00 +03:00
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return 'SMALLINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
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2009-05-26 22:14:19 +04:00
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}
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2010-03-05 19:35:00 +03:00
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public function getVarcharTypeDeclarationSQL(array $field)
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2009-05-26 22:14:19 +04:00
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{
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if ( ! isset($field['length'])) {
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if (array_key_exists('default', $field)) {
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$field['length'] = $this->getVarcharMaxLength();
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} else {
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$field['length'] = false;
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}
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}
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$length = ($field['length'] <= $this->getVarcharMaxLength()) ? $field['length'] : false;
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$fixed = (isset($field['fixed'])) ? $field['fixed'] : false;
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return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
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: ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
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}
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2009-10-01 16:00:14 +04:00
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/** @override */
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2010-03-05 19:35:00 +03:00
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public function getClobTypeDeclarationSQL(array $field)
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2009-10-01 16:00:14 +04:00
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{
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return 'TEXT';
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}
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2009-05-26 22:14:19 +04:00
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2009-09-05 06:44:45 +04:00
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/**
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* @override
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*/
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2010-03-05 19:35:00 +03:00
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protected function _getCommonIntegerTypeDeclarationSQL(array $columnDef)
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2009-05-26 22:14:19 +04:00
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{
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$autoinc = '';
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if ( ! empty($columnDef['autoincrement'])) {
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$autoinc = ' AUTO_INCREMENT';
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}
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$unsigned = (isset($columnDef['unsigned']) && $columnDef['unsigned']) ? ' UNSIGNED' : '';
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|
|
|
|
|
|
|
return $unsigned . $autoinc;
|
|
|
|
}
|
|
|
|
|
2009-06-20 16:59:33 +04:00
|
|
|
/**
|
|
|
|
* @override
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getDateTimeTypeDeclarationSQL(array $fieldDeclaration)
|
2009-06-20 16:59:33 +04:00
|
|
|
{
|
|
|
|
return 'CHAR(' . strlen('YYYY-MM-DD HH:MM:SS') . ')';
|
|
|
|
}
|
|
|
|
|
2009-11-03 19:56:05 +03:00
|
|
|
/**
|
|
|
|
* @override
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getDateTypeDeclarationSQL(array $fieldDeclaration)
|
2009-11-03 19:56:05 +03:00
|
|
|
{
|
|
|
|
return 'CHAR(' . strlen('YYYY-MM-DD') . ')';
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @override
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getTimeTypeDeclarationSQL(array $fieldDeclaration)
|
2009-11-03 19:56:05 +03:00
|
|
|
{
|
|
|
|
return 'CHAR(' . strlen('HH:MM:SS') . ')';
|
|
|
|
}
|
|
|
|
|
2009-06-20 19:09:59 +04:00
|
|
|
/**
|
|
|
|
* @override
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getBooleanTypeDeclarationSQL(array $field)
|
2009-06-20 19:09:59 +04:00
|
|
|
{
|
|
|
|
return 'BIT';
|
|
|
|
}
|
|
|
|
|
2009-05-27 22:54:40 +04:00
|
|
|
/**
|
|
|
|
* Get the platform name for this instance
|
|
|
|
*
|
|
|
|
* @return string
|
|
|
|
*/
|
|
|
|
public function getName()
|
|
|
|
{
|
|
|
|
return 'mssql';
|
|
|
|
}
|
2009-07-10 21:53:48 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Adds an adapter-specific LIMIT clause to the SELECT statement.
|
|
|
|
*
|
|
|
|
* @param string $query
|
|
|
|
* @param mixed $limit
|
|
|
|
* @param mixed $offset
|
|
|
|
* @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
|
|
|
|
* @return string
|
|
|
|
*/
|
2009-07-14 02:59:36 +04:00
|
|
|
public function modifyLimitQuery($query, $limit, $offset = null)
|
2009-07-10 21:53:48 +04:00
|
|
|
{
|
|
|
|
if ($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++) {
|
2009-07-14 02:59:36 +04:00
|
|
|
$sorts[$i] = (stripos($orders[$i], ' DESC') !== false) ? 'DESC' : 'ASC';
|
2009-07-10 21:53:48 +04:00
|
|
|
$orders[$i] = trim(preg_replace('/\s+(ASC|DESC)$/i', '', $orders[$i]));
|
|
|
|
|
|
|
|
// find alias in query string
|
2009-07-14 02:59:36 +04:00
|
|
|
$helperString = stristr($query, $orders[$i]);
|
2009-07-10 21:53:48 +04:00
|
|
|
|
2009-07-14 02:59:36 +04:00
|
|
|
$fromClausePos = strpos($helperString, ' FROM ');
|
|
|
|
$fieldsString = substr($helperString, 0, $fromClausePos + 1);
|
2009-07-10 21:53:48 +04:00
|
|
|
|
2009-07-14 02:59:36 +04:00
|
|
|
$fieldArray = explode(',', $fieldsString);
|
|
|
|
$fieldArray = array_shift($fieldArray);
|
|
|
|
$aux2 = preg_split('/ as /i', $fieldArray);
|
2009-07-10 21:53:48 +04:00
|
|
|
|
|
|
|
$aliases[$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 ';
|
|
|
|
}
|
|
|
|
|
|
|
|
$query = preg_replace('/^'.$selectRegExp.'/i', $selectReplace . 'TOP ' . ($count + $offset) . ' ', $query);
|
2009-08-11 14:51:38 +04:00
|
|
|
$query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS ' . 'inner_tbl';
|
2009-07-10 21:53:48 +04:00
|
|
|
|
|
|
|
if ($orderby !== false) {
|
|
|
|
$query .= ' ORDER BY ';
|
|
|
|
|
|
|
|
for ($i = 0, $l = count($orders); $i < $l; $i++) {
|
|
|
|
if ($i > 0) { // not first order clause
|
|
|
|
$query .= ', ';
|
|
|
|
}
|
|
|
|
|
2009-08-11 14:51:38 +04:00
|
|
|
$query .= 'inner_tbl' . '.' . $aliases[$i] . ' ';
|
2009-07-14 02:59:36 +04:00
|
|
|
$query .= (stripos($sorts[$i], 'ASC') !== false) ? 'DESC' : 'ASC';
|
2009-07-10 21:53:48 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-08-11 14:51:38 +04:00
|
|
|
$query .= ') AS ' . 'outer_tbl';
|
2009-07-10 21:53:48 +04:00
|
|
|
|
|
|
|
if ($orderby !== false) {
|
|
|
|
$query .= ' ORDER BY ';
|
|
|
|
|
|
|
|
for ($i = 0, $l = count($orders); $i < $l; $i++) {
|
|
|
|
if ($i > 0) { // not first order clause
|
|
|
|
$query .= ', ';
|
|
|
|
}
|
|
|
|
|
2009-08-11 14:51:38 +04:00
|
|
|
$query .= 'outer_tbl' . '.' . $aliases[$i] . ' ' . $sorts[$i];
|
2009-07-10 21:53:48 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return $query;
|
|
|
|
}
|
2009-09-08 23:31:26 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Get the insert sql for an empty insert statement
|
|
|
|
*
|
|
|
|
* @param string $tableName
|
|
|
|
* @param string $identifierColumnName
|
|
|
|
* @return string $sql
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getEmptyIdentityInsertSQL($quotedTableName, $quotedIdentifierColumnName)
|
2009-09-08 23:31:26 +04:00
|
|
|
{
|
|
|
|
return 'INSERT INTO ' . $quotedTableName . ' DEFAULT VALUES';
|
|
|
|
}
|
2010-02-07 15:36:30 +03:00
|
|
|
|
|
|
|
/**
|
|
|
|
* @inheritdoc
|
|
|
|
*/
|
2010-03-05 19:35:00 +03:00
|
|
|
public function getTruncateTableSQL($tableName, $cascade = false)
|
2010-02-07 15:36:30 +03:00
|
|
|
{
|
|
|
|
return 'TRUNCATE TABLE '.$tableName;
|
|
|
|
}
|
2009-11-03 19:56:05 +03:00
|
|
|
}
|