556 lines
17 KiB
PHP
556 lines
17 KiB
PHP
<?php
|
|
/*
|
|
* $Id$
|
|
*
|
|
* 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>.
|
|
*/
|
|
|
|
namespace Doctrine\DBAL\Platforms;
|
|
|
|
use Doctrine\Common\DoctrineException;
|
|
|
|
/**
|
|
* The MsSqlPlatform provides the behavior, features and SQL dialect of the
|
|
* MySQL database platform.
|
|
*
|
|
* @since 2.0
|
|
* @author Roman Borschel <roman@code-factory.org>
|
|
* @author Jonathan H. Wage <jonwage@gmail.com>
|
|
*/
|
|
class MsSqlPlatform extends AbstractPlatform
|
|
{
|
|
/**
|
|
* the constructor
|
|
*/
|
|
public function __construct()
|
|
{
|
|
parent::__construct();
|
|
}
|
|
|
|
/**
|
|
* Adds an adapter-specific LIMIT clause to the SELECT statement.
|
|
* [ borrowed from Zend Framework ]
|
|
*
|
|
* @param string $query
|
|
* @param mixed $limit
|
|
* @param mixed $offset
|
|
* @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function writeLimitClause($query, $limit = false, $offset = false)
|
|
{
|
|
if ($limit > 0) {
|
|
$count = intval($limit);
|
|
|
|
$offset = intval($offset);
|
|
if ($offset < 0) {
|
|
throw \Doctrine\Common\DoctrineException::limitOffsetInvalid($offset);
|
|
}
|
|
|
|
$orderby = stristr($query, 'ORDER BY');
|
|
if ($orderby !== false) {
|
|
$sort = (stripos($orderby, 'desc') !== false) ? 'desc' : 'asc';
|
|
$order = str_ireplace('ORDER BY', '', $orderby);
|
|
$order = trim(preg_replace('/ASC|DESC/i', '', $order));
|
|
}
|
|
|
|
$query = preg_replace('/^SELECT\s/i', 'SELECT TOP ' . ($count+$offset) . ' ', $query);
|
|
|
|
$query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS inner_tbl';
|
|
if ($orderby !== false) {
|
|
$query .= ' ORDER BY ' . $order . ' ';
|
|
$query .= (stripos($sort, 'asc') !== false) ? 'DESC' : 'ASC';
|
|
}
|
|
$query .= ') AS outer_tbl';
|
|
if ($orderby !== false) {
|
|
$query .= ' ORDER BY ' . $order . ' ' . $sort;
|
|
}
|
|
|
|
return $query;
|
|
|
|
}
|
|
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Gets the sql statements for altering an existing table.
|
|
*
|
|
* The method returns an array of sql statements, since some platforms need several statements.
|
|
*
|
|
* @param string $name name of the table that is intended to be changed.
|
|
* @param array $changes associative array that contains the details of each type *
|
|
* @param boolean $check indicates whether the function should just check if the DBMS driver
|
|
* can perform the requested table alterations if the value is true or
|
|
* actually perform them otherwise.
|
|
* @return array
|
|
*/
|
|
public function getAlterTableSql($name, array $changes, $check = false)
|
|
{
|
|
foreach ($changes as $changeName => $change) {
|
|
switch ($changeName) {
|
|
case 'add':
|
|
case 'remove':
|
|
case 'change':
|
|
case 'rename':
|
|
case 'name':
|
|
break;
|
|
default:
|
|
throw \Doctrine\Common\DoctrineException::alterTableChangeNotSupported($changeName);
|
|
}
|
|
}
|
|
|
|
$query = '';
|
|
if ( ! empty($changes['name'])) {
|
|
$change_name = $changes['name'];
|
|
$query .= 'RENAME TO ' . $change_name;
|
|
}
|
|
|
|
if ( ! empty($changes['add']) && is_array($changes['add'])) {
|
|
foreach ($changes['add'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query .= ', ';
|
|
}
|
|
$query .= 'ADD ' . $this->getColumnDeclarationSql($fieldName, $field);
|
|
}
|
|
}
|
|
|
|
if ( ! empty($changes['remove']) && is_array($changes['remove'])) {
|
|
foreach ($changes['remove'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query .= ', ';
|
|
}
|
|
$query .= 'DROP COLUMN ' . $fieldName;
|
|
}
|
|
}
|
|
|
|
$rename = array();
|
|
if ( ! empty($changes['rename']) && is_array($changes['rename'])) {
|
|
foreach ($changes['rename'] as $fieldName => $field) {
|
|
$rename[$field['name']] = $fieldName;
|
|
}
|
|
}
|
|
|
|
if ( ! empty($changes['change']) && is_array($changes['change'])) {
|
|
foreach ($changes['change'] as $fieldName => $field) {
|
|
if ($query) {
|
|
$query.= ', ';
|
|
}
|
|
if (isset($rename[$fieldName])) {
|
|
$oldFieldName = $rename[$fieldName];
|
|
unset($rename[$fieldName]);
|
|
} else {
|
|
$oldFieldName = $fieldName;
|
|
}
|
|
$query .= 'CHANGE ' . $oldFieldName . ' '
|
|
. $this->getColumnDeclarationSql($fieldName, $field['definition']);
|
|
}
|
|
}
|
|
|
|
if ( ! empty($rename) && is_array($rename)) {
|
|
foreach ($rename as $renameName => $renamedField) {
|
|
if ($query) {
|
|
$query.= ', ';
|
|
}
|
|
$field = $changes['rename'][$renamedField];
|
|
$query .= 'CHANGE ' . $renamedField . ' '
|
|
. $this->getColumnDeclarationSql($field['name'], $field['definition']);
|
|
}
|
|
}
|
|
|
|
if ( ! $query) {
|
|
return false;
|
|
}
|
|
|
|
return array('ALTER TABLE ' . $name . ' ' . $query);
|
|
}
|
|
|
|
/**
|
|
* Returns the regular expression operator.
|
|
*
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getRegexpExpression()
|
|
{
|
|
return 'RLIKE';
|
|
}
|
|
|
|
/**
|
|
* return string to call a function to get random value inside an SQL statement
|
|
*
|
|
* @return string to generate float between 0 and 1
|
|
*/
|
|
public function getRandomExpression()
|
|
{
|
|
return 'RAND()';
|
|
}
|
|
|
|
/**
|
|
* Return string to call a variable with the current timestamp inside an SQL statement
|
|
* There are three special variables for current date and time:
|
|
* - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
|
|
* - CURRENT_DATE (date, DATE type)
|
|
* - CURRENT_TIME (time, TIME type)
|
|
*
|
|
* @return string to call a variable with the current timestamp
|
|
* @override
|
|
*/
|
|
public function getNowExpression($type = 'timestamp')
|
|
{
|
|
switch ($type) {
|
|
case 'time':
|
|
case 'date':
|
|
case 'timestamp':
|
|
default:
|
|
return 'GETDATE()';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return string to call a function to get a substring inside an SQL statement
|
|
*
|
|
* @return string to call a function to get a substring
|
|
* @override
|
|
*/
|
|
public function getSubstringExpression($value, $position, $length = null)
|
|
{
|
|
if ( ! is_null($length)) {
|
|
return 'SUBSTRING(' . $value . ', ' . $position . ', ' . $length . ')';
|
|
}
|
|
return 'SUBSTRING(' . $value . ', ' . $position . ', LEN(' . $value . ') - ' . $position . ' + 1)';
|
|
}
|
|
|
|
/**
|
|
* Returns string to concatenate two or more string parameters
|
|
*
|
|
* @param string $arg1
|
|
* @param string $arg2
|
|
* @param string $values...
|
|
* @return string to concatenate two strings
|
|
* @override
|
|
*/
|
|
public function getConcatExpression()
|
|
{
|
|
$args = func_get_args();
|
|
return '(' . implode(' + ', $args) . ')';
|
|
}
|
|
|
|
/**
|
|
* Returns global unique identifier
|
|
*
|
|
* @return string to get global unique identifier
|
|
* @override
|
|
*/
|
|
public function getGuidExpression()
|
|
{
|
|
return 'NEWID()';
|
|
}
|
|
|
|
/**
|
|
* Whether the platform prefers identity columns for ID generation.
|
|
* MsSql prefers "autoincrement" identity columns since sequences can only
|
|
* be emulated with a table.
|
|
*
|
|
* @return boolean
|
|
* @override
|
|
*/
|
|
public function prefersIdentityColumns()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Whether the platform supports identity columns.
|
|
* MsSql supports this through AUTO_INCREMENT columns.
|
|
*
|
|
* @return boolean
|
|
* @override
|
|
*/
|
|
public function supportsIdentityColumns()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Whether the platform supports savepoints. MsSql does not.
|
|
*
|
|
* @return boolean
|
|
* @override
|
|
*/
|
|
public function supportsSavepoints()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
public function getShowDatabasesSql()
|
|
{
|
|
return 'SHOW DATABASES';
|
|
}
|
|
|
|
public function getListTablesSql()
|
|
{
|
|
return 'SHOW TABLES';
|
|
}
|
|
|
|
/**
|
|
* create a new database
|
|
*
|
|
* @param string $name name of the database that should be created
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getCreateDatabaseSql($name)
|
|
{
|
|
return 'CREATE DATABASE ' . $name;
|
|
}
|
|
|
|
/**
|
|
* drop an existing database
|
|
*
|
|
* @param string $name name of the database that should be dropped
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getDropDatabaseSql($name)
|
|
{
|
|
return 'DROP DATABASE ' . $name;
|
|
}
|
|
|
|
public function getSetTransactionIsolationSql($level)
|
|
{
|
|
return 'SET TRANSACTION ISOLATION LEVEL ' . $this->_getTransactionIsolationLevelSql($level);
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getIntegerTypeDeclarationSql(array $field)
|
|
{
|
|
return 'INT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getBigIntTypeDeclarationSql(array $field)
|
|
{
|
|
return 'BIGINT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getSmallIntTypeDeclarationSql(array $field)
|
|
{
|
|
return 'SMALLINT' . $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
public function getVarcharTypeDeclarationSql(array $field)
|
|
{
|
|
if ( ! isset($field['length'])) {
|
|
if (array_key_exists('default', $field)) {
|
|
$field['length'] = $this->getVarcharMaxLength();
|
|
} else {
|
|
$field['length'] = false;
|
|
}
|
|
}
|
|
|
|
$length = ($field['length'] <= $this->getVarcharMaxLength()) ? $field['length'] : false;
|
|
$fixed = (isset($field['fixed'])) ? $field['fixed'] : false;
|
|
|
|
return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
|
|
: ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
|
|
}
|
|
|
|
/** @override */
|
|
public function getClobTypeDeclarationSql(array $field)
|
|
{
|
|
return 'TEXT';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
protected function _getCommonIntegerTypeDeclarationSql(array $columnDef)
|
|
{
|
|
$autoinc = '';
|
|
if ( ! empty($columnDef['autoincrement'])) {
|
|
$autoinc = ' AUTO_INCREMENT';
|
|
}
|
|
$unsigned = (isset($columnDef['unsigned']) && $columnDef['unsigned']) ? ' UNSIGNED' : '';
|
|
|
|
return $unsigned . $autoinc;
|
|
}
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to set the CHARACTER SET
|
|
* of a field declaration to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param string $charset name of the charset
|
|
* @return string DBMS specific SQL code portion needed to set the CHARACTER SET
|
|
* of a field declaration.
|
|
*/
|
|
public function getCharsetFieldDeclaration($charset)
|
|
{
|
|
return 'CHARACTER SET ' . $charset;
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getDateTimeTypeDeclarationSql(array $fieldDeclaration)
|
|
{
|
|
return 'CHAR(' . strlen('YYYY-MM-DD HH:MM:SS') . ')';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getDateTypeDeclarationSql(array $fieldDeclaration)
|
|
{
|
|
return 'CHAR(' . strlen('YYYY-MM-DD') . ')';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getTimeTypeDeclarationSql(array $fieldDeclaration)
|
|
{
|
|
return 'CHAR(' . strlen('HH:MM:SS') . ')';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getBooleanTypeDeclarationSql(array $field)
|
|
{
|
|
return 'BIT';
|
|
}
|
|
|
|
/**
|
|
* Get the platform name for this instance
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getName()
|
|
{
|
|
return 'mssql';
|
|
}
|
|
|
|
/**
|
|
* Adds an adapter-specific LIMIT clause to the SELECT statement.
|
|
*
|
|
* @param string $query
|
|
* @param mixed $limit
|
|
* @param mixed $offset
|
|
* @link http://lists.bestpractical.com/pipermail/rt-devel/2005-June/007339.html
|
|
* @return string
|
|
*/
|
|
public function modifyLimitQuery($query, $limit, $offset = null)
|
|
{
|
|
if ($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
|
|
$helperString = stristr($query, $orders[$i]);
|
|
|
|
$fromClausePos = strpos($helperString, ' FROM ');
|
|
$fieldsString = substr($helperString, 0, $fromClausePos + 1);
|
|
|
|
$fieldArray = explode(',', $fieldsString);
|
|
$fieldArray = array_shift($fieldArray);
|
|
$aux2 = preg_split('/ as /i', $fieldArray);
|
|
|
|
$aliases[$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);
|
|
$query = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $query . ') AS ' . 'inner_tbl';
|
|
|
|
if ($orderby !== false) {
|
|
$query .= ' ORDER BY ';
|
|
|
|
for ($i = 0, $l = count($orders); $i < $l; $i++) {
|
|
if ($i > 0) { // not first order clause
|
|
$query .= ', ';
|
|
}
|
|
|
|
$query .= 'inner_tbl' . '.' . $aliases[$i] . ' ';
|
|
$query .= (stripos($sorts[$i], 'ASC') !== false) ? 'DESC' : 'ASC';
|
|
}
|
|
}
|
|
|
|
$query .= ') AS ' . 'outer_tbl';
|
|
|
|
if ($orderby !== false) {
|
|
$query .= ' ORDER BY ';
|
|
|
|
for ($i = 0, $l = count($orders); $i < $l; $i++) {
|
|
if ($i > 0) { // not first order clause
|
|
$query .= ', ';
|
|
}
|
|
|
|
$query .= 'outer_tbl' . '.' . $aliases[$i] . ' ' . $sorts[$i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* Get the insert sql for an empty insert statement
|
|
*
|
|
* @param string $tableName
|
|
* @param string $identifierColumnName
|
|
* @return string $sql
|
|
*/
|
|
public function getEmptyIdentityInsertSql($quotedTableName, $quotedIdentifierColumnName)
|
|
{
|
|
return 'INSERT INTO ' . $quotedTableName . ' DEFAULT VALUES';
|
|
}
|
|
}
|