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doctrine2/lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php

147 lines
3.7 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\Schema\Visitor;
use Doctrine\DBAL\Platforms\AbstractPlatform,
Doctrine\DBAL\Schema\Table,
Doctrine\DBAL\Schema\Schema,
Doctrine\DBAL\Schema\Column,
Doctrine\DBAL\Schema\ForeignKeyConstraint,
Doctrine\DBAL\Schema\Constraint,
Doctrine\DBAL\Schema\Sequence,
Doctrine\DBAL\Schema\Index;
/**
* Gather SQL statements that allow to completly drop the current schema.
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 2.0
* @version $Revision$
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class DropSchemaSqlCollector implements Visitor
{
/**
* @var array
*/
private $_constraints = array();
/**
* @var array
*/
private $_sequences = array();
/**
* @var array
*/
private $_tables = array();
/**
*
* @var \Doctrine\DBAL\Platforms\AbstractPlatform
*/
private $_platform = null;
/**
* @param AbstractPlatform $platform
*/
public function __construct(AbstractPlatform $platform)
{
$this->_platform = $platform;
}
/**
* @param Schema $schema
*/
public function acceptSchema(Schema $schema)
{
}
/**
* @param Table $table
*/
public function acceptTable(Table $table)
{
$this->_tables[] = $this->_platform->getDropTableSQL($table->getName());
}
/**
* @param Column $column
*/
public function acceptColumn(Table $table, Column $column)
{
}
/**
* @param Table $localTable
* @param ForeignKeyConstraint $fkConstraint
*/
public function acceptForeignKey(Table $localTable, ForeignKeyConstraint $fkConstraint)
{
if (strlen($fkConstraint->getName()) == 0) {
throw SchemaException::namedForeignKeyRequired($localTable, $fkConstraint);
}
$this->_constraints[] = $this->_platform->getDropForeignKeySQL($fkConstraint->getName(), $localTable->getName());
}
/**
* @param Table $table
* @param Index $index
*/
public function acceptIndex(Table $table, Index $index)
{
}
/**
* @param Sequence $sequence
*/
public function acceptSequence(Sequence $sequence)
{
$this->_sequences[] = $this->_platform->getDropSequenceSQL($sequence->getName());
}
/**
* @return array
*/
public function clearQueries()
{
$this->_constraints = $this->_sequences = $this->_tables = array();
}
/**
* @return array
*/
public function getQueries()
{
return array_merge(
$this->_constraints,
$this->_sequences,
$this->_tables
);
}
}