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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\Schema\Visitor\CreateSchemaSqlCollector;
- use Doctrine\DBAL\Schema\Visitor\DropSchemaSqlCollector;
- use Doctrine\DBAL\Schema\Visitor\Visitor;
- use Doctrine\DBAL\Platforms\AbstractPlatform;
- /**
- * Object representation of a database schema.
- *
- * Different vendors have very inconsistent naming with regard to the concept
- * of a "schema". Doctrine understands a schema as the entity that conceptually
- * wraps a set of database objects such as tables, sequences, indexes and
- * foreign keys that belong to each other into a namespace. A Doctrine Schema
- * has nothing to do with the "SCHEMA" defined as in PostgreSQL, it is more
- * related to the concept of "DATABASE" that exists in MySQL and PostgreSQL.
- *
- * Every asset in the doctrine schema has a name. A name consists of either a
- * namespace.local name pair or just a local unqualified name.
- *
- * The abstraction layer that covers a PostgreSQL schema is the namespace of an
- * database object (asset). A schema can have a name, which will be used as
- * default namespace for the unqualified database objects that are created in
- * the schema.
- *
- * In the case of MySQL where cross-database queries are allowed this leads to
- * databases being "misinterpreted" as namespaces. This is intentional, however
- * the CREATE/DROP SQL visitors will just filter this queries and do not
- * execute them. Only the queries for the currently connected database are
- * executed.
- *
- * @link www.doctrine-project.org
- * @since 2.0
- * @author Benjamin Eberlei <kontakt@beberlei.de>
- */
- class Schema extends AbstractAsset
- {
- /**
- * @var \Doctrine\DBAL\Schema\Table[]
- */
- protected $_tables = array();
- /**
- * @var \Doctrine\DBAL\Schema\Sequence[]
- */
- protected $_sequences = array();
- /**
- * @var \Doctrine\DBAL\Schema\SchemaConfig
- */
- protected $_schemaConfig = false;
- /**
- * @param \Doctrine\DBAL\Schema\Table[] $tables
- * @param \Doctrine\DBAL\Schema\Sequence[] $sequences
- * @param \Doctrine\DBAL\Schema\SchemaConfig $schemaConfig
- */
- public function __construct(array $tables=array(), array $sequences=array(), SchemaConfig $schemaConfig=null)
- {
- if ($schemaConfig == null) {
- $schemaConfig = new SchemaConfig();
- }
- $this->_schemaConfig = $schemaConfig;
- $this->_setName($schemaConfig->getName() ?: 'public');
- foreach ($tables as $table) {
- $this->_addTable($table);
- }
- foreach ($sequences as $sequence) {
- $this->_addSequence($sequence);
- }
- }
- /**
- * @return boolean
- */
- public function hasExplicitForeignKeyIndexes()
- {
- return $this->_schemaConfig->hasExplicitForeignKeyIndexes();
- }
- /**
- * @param \Doctrine\DBAL\Schema\Table $table
- *
- * @return void
- *
- * @throws \Doctrine\DBAL\Schema\SchemaException
- */
- protected function _addTable(Table $table)
- {
- $tableName = $table->getFullQualifiedName($this->getName());
- if(isset($this->_tables[$tableName])) {
- throw SchemaException::tableAlreadyExists($tableName);
- }
- $this->_tables[$tableName] = $table;
- $table->setSchemaConfig($this->_schemaConfig);
- }
- /**
- * @param \Doctrine\DBAL\Schema\Sequence $sequence
- *
- * @return void
- *
- * @throws \Doctrine\DBAL\Schema\SchemaException
- */
- protected function _addSequence(Sequence $sequence)
- {
- $seqName = $sequence->getFullQualifiedName($this->getName());
- if (isset($this->_sequences[$seqName])) {
- throw SchemaException::sequenceAlreadyExists($seqName);
- }
- $this->_sequences[$seqName] = $sequence;
- }
- /**
- * Gets all tables of this schema.
- *
- * @return \Doctrine\DBAL\Schema\Table[]
- */
- public function getTables()
- {
- return $this->_tables;
- }
- /**
- * @param string $tableName
- *
- * @return \Doctrine\DBAL\Schema\Table
- *
- * @throws \Doctrine\DBAL\Schema\SchemaException
- */
- public function getTable($tableName)
- {
- $tableName = $this->getFullQualifiedAssetName($tableName);
- if (!isset($this->_tables[$tableName])) {
- throw SchemaException::tableDoesNotExist($tableName);
- }
- return $this->_tables[$tableName];
- }
- /**
- * @param string $name
- *
- * @return string
- */
- private function getFullQualifiedAssetName($name)
- {
- if ($this->isIdentifierQuoted($name)) {
- $name = $this->trimQuotes($name);
- }
- if (strpos($name, ".") === false) {
- $name = $this->getName() . "." . $name;
- }
- return strtolower($name);
- }
- /**
- * Does this schema have a table with the given name?
- *
- * @param string $tableName
- *
- * @return boolean
- */
- public function hasTable($tableName)
- {
- $tableName = $this->getFullQualifiedAssetName($tableName);
- return isset($this->_tables[$tableName]);
- }
- /**
- * Gets all table names, prefixed with a schema name, even the default one if present.
- *
- * @return array
- */
- public function getTableNames()
- {
- return array_keys($this->_tables);
- }
- /**
- * @param string $sequenceName
- *
- * @return boolean
- */
- public function hasSequence($sequenceName)
- {
- $sequenceName = $this->getFullQualifiedAssetName($sequenceName);
- return isset($this->_sequences[$sequenceName]);
- }
- /**
- * @param string $sequenceName
- *
- * @return \Doctrine\DBAL\Schema\Sequence
- *
- * @throws \Doctrine\DBAL\Schema\SchemaException
- */
- public function getSequence($sequenceName)
- {
- $sequenceName = $this->getFullQualifiedAssetName($sequenceName);
- if(!$this->hasSequence($sequenceName)) {
- throw SchemaException::sequenceDoesNotExist($sequenceName);
- }
- return $this->_sequences[$sequenceName];
- }
- /**
- * @return \Doctrine\DBAL\Schema\Sequence[]
- */
- public function getSequences()
- {
- return $this->_sequences;
- }
- /**
- * Creates a new table.
- *
- * @param string $tableName
- *
- * @return \Doctrine\DBAL\Schema\Table
- */
- public function createTable($tableName)
- {
- $table = new Table($tableName);
- $this->_addTable($table);
- foreach ($this->_schemaConfig->getDefaultTableOptions() as $name => $value) {
- $table->addOption($name, $value);
- }
- return $table;
- }
- /**
- * Renames a table.
- *
- * @param string $oldTableName
- * @param string $newTableName
- *
- * @return \Doctrine\DBAL\Schema\Schema
- */
- public function renameTable($oldTableName, $newTableName)
- {
- $table = $this->getTable($oldTableName);
- $table->_setName($newTableName);
- $this->dropTable($oldTableName);
- $this->_addTable($table);
- return $this;
- }
- /**
- * Drops a table from the schema.
- *
- * @param string $tableName
- *
- * @return \Doctrine\DBAL\Schema\Schema
- */
- public function dropTable($tableName)
- {
- $tableName = $this->getFullQualifiedAssetName($tableName);
- $this->getTable($tableName);
- unset($this->_tables[$tableName]);
- return $this;
- }
- /**
- * Creates a new sequence.
- *
- * @param string $sequenceName
- * @param integer $allocationSize
- * @param integer $initialValue
- *
- * @return \Doctrine\DBAL\Schema\Sequence
- */
- public function createSequence($sequenceName, $allocationSize=1, $initialValue=1)
- {
- $seq = new Sequence($sequenceName, $allocationSize, $initialValue);
- $this->_addSequence($seq);
- return $seq;
- }
- /**
- * @param string $sequenceName
- *
- * @return \Doctrine\DBAL\Schema\Schema
- */
- public function dropSequence($sequenceName)
- {
- $sequenceName = $this->getFullQualifiedAssetName($sequenceName);
- unset($this->_sequences[$sequenceName]);
- return $this;
- }
- /**
- * Returns an array of necessary SQL queries to create the schema on the given platform.
- *
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function toSql(AbstractPlatform $platform)
- {
- $sqlCollector = new CreateSchemaSqlCollector($platform);
- $this->visit($sqlCollector);
- return $sqlCollector->getQueries();
- }
- /**
- * Return an array of necessary SQL queries to drop the schema on the given platform.
- *
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function toDropSql(AbstractPlatform $platform)
- {
- $dropSqlCollector = new DropSchemaSqlCollector($platform);
- $this->visit($dropSqlCollector);
- return $dropSqlCollector->getQueries();
- }
- /**
- * @param \Doctrine\DBAL\Schema\Schema $toSchema
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function getMigrateToSql(Schema $toSchema, AbstractPlatform $platform)
- {
- $comparator = new Comparator();
- $schemaDiff = $comparator->compare($this, $toSchema);
- return $schemaDiff->toSql($platform);
- }
- /**
- * @param \Doctrine\DBAL\Schema\Schema $fromSchema
- * @param \Doctrine\DBAL\Platforms\AbstractPlatform $platform
- *
- * @return array
- */
- public function getMigrateFromSql(Schema $fromSchema, AbstractPlatform $platform)
- {
- $comparator = new Comparator();
- $schemaDiff = $comparator->compare($fromSchema, $this);
- return $schemaDiff->toSql($platform);
- }
- /**
- * @param \Doctrine\DBAL\Schema\Visitor\Visitor $visitor
- *
- * @return void
- */
- public function visit(Visitor $visitor)
- {
- $visitor->acceptSchema($this);
- foreach ($this->_tables as $table) {
- $table->visit($visitor);
- }
- foreach ($this->_sequences as $sequence) {
- $sequence->visit($visitor);
- }
- }
- /**
- * Cloning a Schema triggers a deep clone of all related assets.
- *
- * @return void
- */
- public function __clone()
- {
- foreach ($this->_tables as $k => $table) {
- $this->_tables[$k] = clone $table;
- }
- foreach ($this->_sequences as $k => $sequence) {
- $this->_sequences[$k] = clone $sequence;
- }
- }
- }
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