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- <?php
- /*
- * 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 MIT license. For more information, see
- * <http://www.doctrine-project.org>.
- */
- namespace Doctrine\DBAL\Schema;
- use \Doctrine\DBAL\Platforms\AbstractPlatform;
- /**
- * Schema Diff.
- *
- * @link www.doctrine-project.org
- * @copyright Copyright (C) 2005-2009 eZ Systems AS. All rights reserved.
- * @license http://ez.no/licenses/new_bsd New BSD License
- * @since 2.0
- * @author Benjamin Eberlei <kontakt@beberlei.de>
- */
- class SchemaDiff
- {
- /**
- * @var \Doctrine\DBAL\Schema\Schema
- */
- public $fromSchema;
- /**
- * All added tables.
- *
- * @var \Doctrine\DBAL\Schema\Table[]
- */
- public $newTables = array();
- /**
- * All changed tables.
- *
- * @var \Doctrine\DBAL\Schema\TableDiff[]
- */
- public $changedTables = array();
- /**
- * All removed tables.
- *
- * @var \Doctrine\DBAL\Schema\Table[]
- */
- public $removedTables = array();
- /**
- * @var \Doctrine\DBAL\Schema\Sequence[]
- */
- public $newSequences = array();
- /**
- * @var \Doctrine\DBAL\Schema\Sequence[]
- */
- public $changedSequences = array();
- /**
- * @var \Doctrine\DBAL\Schema\Sequence[]
- */
- public $removedSequences = array();
- /**
- * @var \Doctrine\DBAL\Schema\ForeignKeyConstraint[]
- */
- public $orphanedForeignKeys = array();
- /**
- * Constructs an SchemaDiff object.
- *
- * @param \Doctrine\DBAL\Schema\Table[] $newTables
- * @param \Doctrine\DBAL\Schema\TableDiff[] $changedTables
- * @param \Doctrine\DBAL\Schema\Table[] $removedTables
- * @param \Doctrine\DBAL\Schema\Schema|null $fromSchema
- */
- public function __construct($newTables = array(), $changedTables = array(), $removedTables = array(), Schema $fromSchema = null)
- {
- $this->newTables = $newTables;
- $this->changedTables = $changedTables;
- $this->removedTables = $removedTables;
- $this->fromSchema = $fromSchema;
- }
- /**
- * The to save sql mode ensures that the following things don't happen:
- *
- * 1. Tables are deleted
- * 2. Sequences are deleted
- * 3. Foreign Keys which reference tables that would otherwise be deleted.
- *
- * This way it is ensured that assets are deleted which might not be relevant to the metadata schema at all.
- *
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function toSaveSql(AbstractPlatform $platform)
- {
- return $this->_toSql($platform, true);
- }
- /**
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function toSql(AbstractPlatform $platform)
- {
- return $this->_toSql($platform, false);
- }
- /**
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- * @param boolean $saveMode
- *
- * @return array
- */
- protected function _toSql(AbstractPlatform $platform, $saveMode = false)
- {
- $sql = array();
- if ($platform->supportsForeignKeyConstraints() && $saveMode == false) {
- foreach ($this->orphanedForeignKeys as $orphanedForeignKey) {
- $sql[] = $platform->getDropForeignKeySQL($orphanedForeignKey, $orphanedForeignKey->getLocalTableName());
- }
- }
- if ($platform->supportsSequences() == true) {
- foreach ($this->changedSequences as $sequence) {
- $sql[] = $platform->getAlterSequenceSQL($sequence);
- }
- if ($saveMode === false) {
- foreach ($this->removedSequences as $sequence) {
- $sql[] = $platform->getDropSequenceSQL($sequence);
- }
- }
- foreach ($this->newSequences as $sequence) {
- $sql[] = $platform->getCreateSequenceSQL($sequence);
- }
- }
- $foreignKeySql = array();
- foreach ($this->newTables as $table) {
- $sql = array_merge(
- $sql,
- $platform->getCreateTableSQL($table, AbstractPlatform::CREATE_INDEXES)
- );
- if ($platform->supportsForeignKeyConstraints()) {
- foreach ($table->getForeignKeys() as $foreignKey) {
- $foreignKeySql[] = $platform->getCreateForeignKeySQL($foreignKey, $table);
- }
- }
- }
- $sql = array_merge($sql, $foreignKeySql);
- if ($saveMode === false) {
- foreach ($this->removedTables as $table) {
- $sql[] = $platform->getDropTableSQL($table);
- }
- }
- foreach ($this->changedTables as $tableDiff) {
- $sql = array_merge($sql, $platform->getAlterTableSQL($tableDiff));
- }
- return $sql;
- }
- }
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