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doctrine2/lib/Doctrine/Export/Mssql.php

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<?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.phpdoctrine.com>.
*/
Doctrine::autoload('Doctrine_Export');
/**
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* Doctrine_Export_Mssql
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*
* @package Doctrine
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @author Frank M. Kromann <frank@kromann.info> (PEAR MDB2 Mssql driver)
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
*/
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class Doctrine_Export_Mssql extends Doctrine_Export
{
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/**
* create a new database
*
* @param string $name name of the database that should be created
* @return void
*/
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public function createDatabase($name)
{
$name = $this->conn->quoteIdentifier($name, true);
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$query = "CREATE DATABASE $name";
if ($this->conn->options['database_device']) {
$query.= ' ON '.$this->conn->options['database_device'];
$query.= $this->conn->options['database_size'] ? '=' .
$this->conn->options['database_size'] : '';
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}
return $this->conn->standaloneQuery($query, null, true);
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}
/**
* drop an existing database
*
* @param string $name name of the database that should be dropped
* @return void
*/
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public function dropDatabase($name)
{
$name = $this->conn->quoteIdentifier($name, true);
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return $this->conn->standaloneQuery('DROP DATABASE ' . $name, null, true);
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}
/**
* alter an existing table
*
* @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
* of change that is intended to be performed. The types of
* changes that are currently supported are defined as follows:
*
* name
*
* New name for the table.
*
* add
*
* Associative array with the names of fields to be added as
* indexes of the array. The value of each entry of the array
* should be set to another associative array with the properties
* of the fields to be added. The properties of the fields should
* be the same as defined by the Metabase parser.
*
*
* remove
*
* Associative array with the names of fields to be removed as indexes
* of the array. Currently the values assigned to each entry are ignored.
* An empty array should be used for future compatibility.
*
* rename
*
* Associative array with the names of fields to be renamed as indexes
* of the array. The value of each entry of the array should be set to
* another associative array with the entry named name with the new
* field name and the entry named Declaration that is expected to contain
* the portion of the field declaration already in DBMS specific SQL code
* as it is used in the CREATE TABLE statement.
*
* change
*
* Associative array with the names of the fields to be changed as indexes
* of the array. Keep in mind that if it is intended to change either the
* name of a field and any other properties, the change array entries
* should have the new names of the fields as array indexes.
*
* The value of each entry of the array should be set to another associative
* array with the properties of the fields to that are meant to be changed as
* array entries. These entries should be assigned to the new values of the
* respective properties. The properties of the fields should be the same
* as defined by the Metabase parser.
*
* Example
* array(
* 'name' => 'userlist',
* 'add' => array(
* 'quota' => array(
* 'type' => 'integer',
* 'unsigned' => 1
* )
* ),
* 'remove' => array(
* 'file_limit' => array(),
* 'time_limit' => array()
* ),
* 'change' => array(
* 'name' => array(
* 'length' => '20',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 20,
* ),
* )
* ),
* 'rename' => array(
* 'sex' => array(
* 'name' => 'gender',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 1,
* 'default' => 'M',
* ),
* )
* )
* )
*
* @param boolean $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @return void
*/
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public function alterTable($name, $changes, $check)
{
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foreach ($changes as $changeName => $change) {
switch ($changeName) {
case 'add':
break;
case 'remove':
break;
case 'name':
case 'rename':
case 'change':
default:
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throw new Doctrine_Export_Exception('alterTable: change type "' . $changeName . '" not yet supported');
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}
}
$query = '';
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if ( ! empty($changes['add']) && is_array($changes['add'])) {
foreach ($changes['add'] as $fieldName => $field) {
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if ($query) {
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$query .= ', ';
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}
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$query .= 'ADD ' . $this->conn->getDeclaration($field['type'], $fieldName, $field);
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}
}
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if ( ! empty($changes['remove']) && is_array($changes['remove'])) {
foreach ($changes['remove'] as $fieldName => $field) {
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if ($query) {
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$query .= ', ';
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}
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$field_name = $this->conn->quoteIdentifier($fieldName, true);
$query .= 'DROP COLUMN ' . $fieldName;
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}
}
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if ( ! $query) {
return false;
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}
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$name = $this->conn->quoteIdentifier($name, true);
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return $this->conn->exec('ALTER TABLE ' . $name . ' ' . $query);
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}
/**
* create sequence
*
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* @param string $seqName name of the sequence to be created
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* @param string $start start value of the sequence; default is 1
* @return void
*/
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public function createSequence($seqName, $start = 1)
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{
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$sequenceName = $this->conn->quoteIdentifier($this->conn->getSequenceName($seqName), true);
$seqcolName = $this->conn->quoteIdentifier($this->conn->options['seqcol_name'], true);
$query = 'CREATE TABLE ' . $sequenceName . ' (' . $seqcolName .
' INT PRIMARY KEY CLUSTERED IDENTITY(' . $start . ',1) NOT NULL)';
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$res = $this->conn->exec($query);
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if ($start == 1) {
return true;
}
try {
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$query = 'SET IDENTITY_INSERT ' . $sequenceName . ' ON ' .
'INSERT INTO ' . $sequenceName . ' (' . $seqcolName . ') VALUES ( ' . $start . ')';
$res = $this->conn->exec($query);
} catch (Exception $e) {
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$result = $this->conn->exec('DROP TABLE ' . $sequenceName);
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}
return true;
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}
/**
* This function drops an existing sequence
*
* @param string $seqName name of the sequence to be dropped
* @return void
*/
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public function dropSequence($seqName)
{
$sequenceName = $this->conn->quoteIdentifier($this->conn->getSequenceName($seqName), true);
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return $this->conn->exec('DROP TABLE ' . $sequenceName);
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}
}