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doctrine2/lib/Doctrine/DBAL/Schema/Db2SchemaManager.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.doctrine-project.org>.
*/
namespace Doctrine\DBAL\Schema;
/**
* IBM Db2 Schema Manager
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.com
* @since 1.0
* @version $Revision$
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class Db2SchemaManager extends AbstractSchemaManager
{
/**
* Return a list of all tables in the current database
*
* Apparently creator is the schema not the user who created it:
* {@link http://publib.boulder.ibm.com/infocenter/dzichelp/v2r2/index.jsp?topic=/com.ibm.db29.doc.sqlref/db2z_sysibmsystablestable.htm}
*
* @return array
*/
public function listTableNames()
{
$sql = $this->_platform->getListTablesSQL();
$sql .= " AND CREATOR = UPPER('".$this->_conn->getUsername()."')";
$tables = $this->_conn->fetchAll($sql);
return $this->_getPortableTablesList($tables);
}
/**
* Get Table Column Definition
*
* @param array $tableColumn
* @return Column
*/
protected function _getPortableTableColumnDefinition($tableColumn)
{
$tableColumn = array_change_key_case($tableColumn, \CASE_LOWER);
$length = null;
$fixed = null;
$unsigned = false;
$scale = false;
$precision = false;
switch (strtolower($tableColumn['typename'])) {
case 'smallint':
case 'bigint':
case 'integer':
case 'time':
case 'date':
$type = strtolower($tableColumn['typename']);
break;
case 'varchar':
$type = 'string';
$length = $tableColumn['length'];
$fixed = false;
break;
case 'character':
$type = 'string';
$length = $tableColumn['length'];
$fixed = true;
break;
case 'clob':
$type = 'text';
$length = $tableColumn['length'];
break;
case 'decimal':
case 'double':
case 'real':
$type = 'decimal';
$scale = $tableColumn['scale'];
$precision = $tableColumn['length'];
break;
case 'timestamp':
$type = 'datetime';
break;
default:
throw new \Doctrine\DBAL\DBALException("Unknown Type: ".$tableColumn['typename']);
}
$options = array(
'length' => $length,
'unsigned' => (bool)$unsigned,
'fixed' => (bool)$fixed,
'default' => ($tableColumn['default'] == "NULL") ? null : $tableColumn['default'],
'notnull' => (bool) ($tableColumn['nulls'] == 'N'),
'scale' => null,
'precision' => null,
'platformOptions' => array(),
);
if ($scale !== null && $precision !== null) {
$options['scale'] = $scale;
$options['precision'] = $precision;
}
return new Column($tableColumn['colname'], \Doctrine\DBAL\Types\Type::getType($type), $options);
}
protected function _getPortableTablesList($tables)
{
$tableNames = array();
foreach ($tables AS $tableRow) {
$tableRow = array_change_key_case($tableRow, \CASE_LOWER);
$tableNames[] = $tableRow['name'];
}
return $tableNames;
}
protected function _getPortableTableIndexesList($tableIndexes, $tableName=null)
{
$tableIndexRows = array();
$indexes = array();
foreach($tableIndexes AS $indexKey => $data) {
$data = array_change_key_case($data, \CASE_LOWER);
$unique = ($data['uniquerule'] == "D") ? false : true;
$primary = ($data['uniquerule'] == "P");
$indexName = strtolower($data['name']);
if ($primary) {
$keyName = 'primary';
} else {
$keyName = $indexName;
}
$indexes[$keyName] = new Index($indexName, explode("+", ltrim($data['colnames'], '+')), $unique, $primary);
}
return $indexes;
}
protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
{
$tableForeignKey = array_change_key_case($tableForeignKey, CASE_LOWER);
$tableForeignKey['deleterule'] = $this->_getPortableForeignKeyRuleDef($tableForeignKey['deleterule']);
$tableForeignKey['updaterule'] = $this->_getPortableForeignKeyRuleDef($tableForeignKey['updaterule']);
return new ForeignKeyConstraint(
array_map('trim', (array)$tableForeignKey['fkcolnames']),
$tableForeignKey['reftbname'],
array_map('trim', (array)$tableForeignKey['pkcolnames']),
$tableForeignKey['relname'],
array(
'onUpdate' => $tableForeignKey['updaterule'],
'onDelete' => $tableForeignKey['deleterule'],
)
);
}
protected function _getPortableForeignKeyRuleDef($def)
{
if ($def == "C") {
return "CASCADE";
} else if ($def == "N") {
return "SET NULL";
}
return null;
}
protected function _getPortableViewDefinition($view)
{
$view = array_change_key_case($view, \CASE_LOWER);
// sadly this still segfaults on PDO_IBM, see http://pecl.php.net/bugs/bug.php?id=17199
//$view['text'] = (is_resource($view['text']) ? stream_get_contents($view['text']) : $view['text']);
if (!is_resource($view['text'])) {
$pos = strpos($view['text'], ' AS ');
$sql = substr($view['text'], $pos+4);
} else {
$sql = '';
}
return new View($view['name'], $sql);
}
}