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doctrine2/lib/Doctrine/Export/Mssql.php
2006-11-17 15:02:23 +00:00

241 lines
11 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.phpdoctrine.com>.
*/
Doctrine::autoload('Doctrine_Export');
/**
* Doctrine_Export_Oracle
*
* @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 $Revision$
*/
class Doctrine_Export_Mssql extends Doctrine_Export {
/**
* create a new database
*
* @param string $name name of the database that should be created
* @return void
*/
public function createDatabase($name) {
$name = $db->quoteIdentifier($name, true);
$query = "CREATE DATABASE $name";
if ($db->options['database_device']) {
$query.= ' ON '.$db->options['database_device'];
$query.= $db->options['database_size'] ? '=' .
$db->options['database_size'] : '';
}
return $db->standaloneQuery($query, null, true);
}
/**
* drop an existing database
*
* @param string $name name of the database that should be dropped
* @return void
*/
public function dropDatabase($name) {
$name = $db->quoteIdentifier($name, true);
return $db->standaloneQuery("DROP DATABASE $name", null, true);
}
/**
* 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 $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @return void
*/
public function alterTable($name, $changes, $check) {
foreach ($changes as $change_name => $change) {
switch ($change_name) {
case 'add':
break;
case 'remove':
break;
case 'name':
case 'rename':
case 'change':
default:
return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
'alterTable: change type "'.$change_name.'" not yet supported');
}
}
if ($check) {
return MDB2_OK;
}
$query = '';
if (!empty($changes['add']) && is_array($changes['add'])) {
foreach ($changes['add'] as $field_name => $field) {
if ($query) {
$query.= ', ';
}
$query.= 'ADD ' . $db->getDeclaration($field['type'], $field_name, $field);
}
}
if (!empty($changes['remove']) && is_array($changes['remove'])) {
foreach ($changes['remove'] as $field_name => $field) {
if ($query) {
$query.= ', ';
}
$field_name = $db->quoteIdentifier($field_name, true);
$query.= 'DROP COLUMN ' . $field_name;
}
}
if (!$query) {
return MDB2_OK;
}
$name = $db->quoteIdentifier($name, true);
return $db->exec("ALTER TABLE $name $query");
}
/**
* create sequence
*
* @param string $seq_name name of the sequence to be created
* @param string $start start value of the sequence; default is 1
* @return void
*/
public function createSequence($seq_name, $start = 1) {
$sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
$seqcol_name = $db->quoteIdentifier($db->options['seqcol_name'], true);
$query = "CREATE TABLE $sequence_name ($seqcol_name " .
"INT PRIMARY KEY CLUSTERED IDENTITY($start,1) NOT NULL)";
$res = $db->exec($query);
if ($start == 1) {
return true;
}
$query = 'SET IDENTITY_INSERT $sequence_name ON ' .
'INSERT INTO $sequence_name (' . $seqcol_name . ') VALUES ( ' . $start . ')';
$res = $db->exec($query);
$result = $db->exec("DROP TABLE $sequence_name");
if (PEAR::isError($result)) {
return $db->raiseError($result, null, null,
'createSequence: could not drop inconsistent sequence table');
}
return $db->raiseError($res, null, null,
'createSequence: could not create sequence table');
}
/**
* This function drops an existing sequence
*
* @param string $seqName name of the sequence to be dropped
* @return void
*/
public function dropSequence($seqName) {
$sequenceName = $db->quoteIdentifier($db->getSequenceName($seqName), true);
return $db->exec('DROP TABLE ' . $sequenceName);
}
}