Rajout de doctrine/orm
[zf2.biz/application_blanche.git] / vendor / doctrine / dbal / lib / Doctrine / DBAL / Schema / AbstractSchemaManager.php
diff --git a/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php b/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php
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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\Events;
+use Doctrine\DBAL\Event\SchemaColumnDefinitionEventArgs;
+use Doctrine\DBAL\Event\SchemaIndexDefinitionEventArgs;
+use Doctrine\DBAL\Types;
+use Doctrine\DBAL\DBALException;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+
+/**
+ * Base class for schema managers. Schema managers are used to inspect and/or
+ * modify the database schema/structure.
+ *
+ * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
+ * @author      Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
+ * @author      Roman Borschel <roman@code-factory.org>
+ * @author      Jonathan H. Wage <jonwage@gmail.com>
+ * @author      Benjamin Eberlei <kontakt@beberlei.de>
+ * @since       2.0
+ */
+abstract class AbstractSchemaManager
+{
+    /**
+     * Holds instance of the Doctrine connection for this schema manager
+     *
+     * @var \Doctrine\DBAL\Connection
+     */
+    protected $_conn;
+
+    /**
+     * Holds instance of the database platform used for this schema manager
+     *
+     * @var \Doctrine\DBAL\Platforms\AbstractPlatform
+     */
+    protected $_platform;
+
+    /**
+     * Constructor. Accepts the Connection instance to manage the schema for
+     *
+     * @param \Doctrine\DBAL\Connection $conn
+     */
+    public function __construct(\Doctrine\DBAL\Connection $conn)
+    {
+        $this->_conn = $conn;
+        $this->_platform = $this->_conn->getDatabasePlatform();
+    }
+
+    /**
+     * Return associated platform.
+     *
+     * @return \Doctrine\DBAL\Platforms\AbstractPlatform
+     */
+    public function getDatabasePlatform()
+    {
+        return $this->_platform;
+    }
+
+    /**
+     * Try any method on the schema manager. Normally a method throws an
+     * exception when your DBMS doesn't support it or if an error occurs.
+     * This method allows you to try and method on your SchemaManager
+     * instance and will return false if it does not work or is not supported.
+     *
+     * <code>
+     * $result = $sm->tryMethod('dropView', 'view_name');
+     * </code>
+     *
+     * @return mixed
+     */
+    public function tryMethod()
+    {
+        $args = func_get_args();
+        $method = $args[0];
+        unset($args[0]);
+        $args = array_values($args);
+
+        try {
+            return call_user_func_array(array($this, $method), $args);
+        } catch (\Exception $e) {
+            return false;
+        }
+    }
+
+    /**
+     * List the available databases for this connection
+     *
+     * @return array $databases
+     */
+    public function listDatabases()
+    {
+        $sql = $this->_platform->getListDatabasesSQL();
+
+        $databases = $this->_conn->fetchAll($sql);
+
+        return $this->_getPortableDatabasesList($databases);
+    }
+
+    /**
+     * List the available sequences for this connection
+     *
+     * @return Sequence[]
+     */
+    public function listSequences($database = null)
+    {
+        if (is_null($database)) {
+            $database = $this->_conn->getDatabase();
+        }
+        $sql = $this->_platform->getListSequencesSQL($database);
+
+        $sequences = $this->_conn->fetchAll($sql);
+
+        return $this->filterAssetNames($this->_getPortableSequencesList($sequences));
+    }
+
+    /**
+     * List the columns for a given table.
+     *
+     * In contrast to other libraries and to the old version of Doctrine,
+     * this column definition does try to contain the 'primary' field for
+     * the reason that it is not portable accross different RDBMS. Use
+     * {@see listTableIndexes($tableName)} to retrieve the primary key
+     * of a table. We're a RDBMS specifies more details these are held
+     * in the platformDetails array.
+     *
+     * @param string $table The name of the table.
+     * @param string $database
+     * @return Column[]
+     */
+    public function listTableColumns($table, $database = null)
+    {
+        if ( ! $database) {
+            $database = $this->_conn->getDatabase();
+        }
+
+        $sql = $this->_platform->getListTableColumnsSQL($table, $database);
+
+        $tableColumns = $this->_conn->fetchAll($sql);
+
+        return $this->_getPortableTableColumnList($table, $database, $tableColumns);
+    }
+
+    /**
+     * List the indexes for a given table returning an array of Index instances.
+     *
+     * Keys of the portable indexes list are all lower-cased.
+     *
+     * @param string $table The name of the table
+     * @return Index[] $tableIndexes
+     */
+    public function listTableIndexes($table)
+    {
+        $sql = $this->_platform->getListTableIndexesSQL($table, $this->_conn->getDatabase());
+
+        $tableIndexes = $this->_conn->fetchAll($sql);
+
+        return $this->_getPortableTableIndexesList($tableIndexes, $table);
+    }
+
+    /**
+     * Return true if all the given tables exist.
+     *
+     * @param array $tableNames
+     * @return bool
+     */
+    public function tablesExist($tableNames)
+    {
+        $tableNames = array_map('strtolower', (array)$tableNames);
+        return count($tableNames) == count(\array_intersect($tableNames, array_map('strtolower', $this->listTableNames())));
+    }
+
+    /**
+     * Return a list of all tables in the current database
+     *
+     * @return array
+     */
+    public function listTableNames()
+    {
+        $sql = $this->_platform->getListTablesSQL();
+
+        $tables = $this->_conn->fetchAll($sql);
+        $tableNames = $this->_getPortableTablesList($tables);
+        return $this->filterAssetNames($tableNames);
+    }
+
+    /**
+     * Filter asset names if they are configured to return only a subset of all
+     * the found elements.
+     *
+     * @param array $assetNames
+     * @return array
+     */
+    protected function filterAssetNames($assetNames)
+    {
+        $filterExpr = $this->getFilterSchemaAssetsExpression();
+        if ( ! $filterExpr) {
+            return $assetNames;
+        }
+        return array_values (
+            array_filter($assetNames, function ($assetName) use ($filterExpr) {
+                $assetName = ($assetName instanceof AbstractAsset) ? $assetName->getName() : $assetName;
+                return preg_match($filterExpr, $assetName);
+            })
+        );
+    }
+
+    protected function getFilterSchemaAssetsExpression()
+    {
+        return $this->_conn->getConfiguration()->getFilterSchemaAssetsExpression();
+    }
+
+    /**
+     * List the tables for this connection
+     *
+     * @return Table[]
+     */
+    public function listTables()
+    {
+        $tableNames = $this->listTableNames();
+
+        $tables = array();
+        foreach ($tableNames as $tableName) {
+            $tables[] = $this->listTableDetails($tableName);
+        }
+
+        return $tables;
+    }
+
+    /**
+     * @param  string $tableName
+     * @return Table
+     */
+    public function listTableDetails($tableName)
+    {
+        $columns = $this->listTableColumns($tableName);
+        $foreignKeys = array();
+        if ($this->_platform->supportsForeignKeyConstraints()) {
+            $foreignKeys = $this->listTableForeignKeys($tableName);
+        }
+        $indexes = $this->listTableIndexes($tableName);
+
+        return new Table($tableName, $columns, $indexes, $foreignKeys, false, array());
+    }
+
+    /**
+     * List the views this connection has
+     *
+     * @return View[]
+     */
+    public function listViews()
+    {
+        $database = $this->_conn->getDatabase();
+        $sql = $this->_platform->getListViewsSQL($database);
+        $views = $this->_conn->fetchAll($sql);
+
+        return $this->_getPortableViewsList($views);
+    }
+
+    /**
+     * List the foreign keys for the given table
+     *
+     * @param string $table  The name of the table
+     * @return ForeignKeyConstraint[]
+     */
+    public function listTableForeignKeys($table, $database = null)
+    {
+        if (is_null($database)) {
+            $database = $this->_conn->getDatabase();
+        }
+        $sql = $this->_platform->getListTableForeignKeysSQL($table, $database);
+        $tableForeignKeys = $this->_conn->fetchAll($sql);
+
+        return $this->_getPortableTableForeignKeysList($tableForeignKeys);
+    }
+
+    /* drop*() Methods */
+
+    /**
+     * Drops a database.
+     *
+     * NOTE: You can not drop the database this SchemaManager is currently connected to.
+     *
+     * @param string $database The name of the database to drop
+     */
+    public function dropDatabase($database)
+    {
+        $this->_execSql($this->_platform->getDropDatabaseSQL($database));
+    }
+
+    /**
+     * Drop the given table
+     *
+     * @param string $table The name of the table to drop
+     */
+    public function dropTable($table)
+    {
+        $this->_execSql($this->_platform->getDropTableSQL($table));
+    }
+
+    /**
+     * Drop the index from the given table
+     *
+     * @param Index|string $index  The name of the index
+     * @param string|Table $table The name of the table
+     */
+    public function dropIndex($index, $table)
+    {
+        if($index instanceof Index) {
+            $index = $index->getQuotedName($this->_platform);
+        }
+
+        $this->_execSql($this->_platform->getDropIndexSQL($index, $table));
+    }
+
+    /**
+     * Drop the constraint from the given table
+     *
+     * @param Constraint $constraint
+     * @param string $table   The name of the table
+     */
+    public function dropConstraint(Constraint $constraint, $table)
+    {
+        $this->_execSql($this->_platform->getDropConstraintSQL($constraint, $table));
+    }
+
+    /**
+     * Drops a foreign key from a table.
+     *
+     * @param ForeignKeyConstraint|string $table The name of the table with the foreign key.
+     * @param Table|string $name  The name of the foreign key.
+     * @return boolean $result
+     */
+    public function dropForeignKey($foreignKey, $table)
+    {
+        $this->_execSql($this->_platform->getDropForeignKeySQL($foreignKey, $table));
+    }
+
+    /**
+     * Drops a sequence with a given name.
+     *
+     * @param string $name The name of the sequence to drop.
+     */
+    public function dropSequence($name)
+    {
+        $this->_execSql($this->_platform->getDropSequenceSQL($name));
+    }
+
+    /**
+     * Drop a view
+     *
+     * @param string $name The name of the view
+     * @return boolean $result
+     */
+    public function dropView($name)
+    {
+        $this->_execSql($this->_platform->getDropViewSQL($name));
+    }
+
+    /* create*() Methods */
+
+    /**
+     * Creates a new database.
+     *
+     * @param string $database The name of the database to create.
+     */
+    public function createDatabase($database)
+    {
+        $this->_execSql($this->_platform->getCreateDatabaseSQL($database));
+    }
+
+    /**
+     * Create a new table.
+     *
+     * @param Table $table
+     * @param int $createFlags
+     */
+    public function createTable(Table $table)
+    {
+        $createFlags = AbstractPlatform::CREATE_INDEXES|AbstractPlatform::CREATE_FOREIGNKEYS;
+        $this->_execSql($this->_platform->getCreateTableSQL($table, $createFlags));
+    }
+
+    /**
+     * Create a new sequence
+     *
+     * @param Sequence $sequence
+     * @throws \Doctrine\DBAL\ConnectionException     if something fails at database level
+     */
+    public function createSequence($sequence)
+    {
+        $this->_execSql($this->_platform->getCreateSequenceSQL($sequence));
+    }
+
+    /**
+     * Create a constraint on a table
+     *
+     * @param Constraint $constraint
+     * @param string|Table $table
+     */
+    public function createConstraint(Constraint $constraint, $table)
+    {
+        $this->_execSql($this->_platform->getCreateConstraintSQL($constraint, $table));
+    }
+
+    /**
+     * Create a new index on a table
+     *
+     * @param Index     $index
+     * @param string    $table         name of the table on which the index is to be created
+     */
+    public function createIndex(Index $index, $table)
+    {
+        $this->_execSql($this->_platform->getCreateIndexSQL($index, $table));
+    }
+
+    /**
+     * Create a new foreign key
+     *
+     * @param ForeignKeyConstraint  $foreignKey    ForeignKey instance
+     * @param string|Table          $table         name of the table on which the foreign key is to be created
+     */
+    public function createForeignKey(ForeignKeyConstraint $foreignKey, $table)
+    {
+        $this->_execSql($this->_platform->getCreateForeignKeySQL($foreignKey, $table));
+    }
+
+    /**
+     * Create a new view
+     *
+     * @param View $view
+     */
+    public function createView(View $view)
+    {
+        $this->_execSql($this->_platform->getCreateViewSQL($view->getQuotedName($this->_platform), $view->getSql()));
+    }
+
+    /* dropAndCreate*() Methods */
+
+    /**
+     * Drop and create a constraint
+     *
+     * @param Constraint    $constraint
+     * @param string        $table
+     * @see dropConstraint()
+     * @see createConstraint()
+     */
+    public function dropAndCreateConstraint(Constraint $constraint, $table)
+    {
+        $this->tryMethod('dropConstraint', $constraint, $table);
+        $this->createConstraint($constraint, $table);
+    }
+
+    /**
+     * Drop and create a new index on a table
+     *
+     * @param string|Table $table         name of the table on which the index is to be created
+     * @param Index $index
+     */
+    public function dropAndCreateIndex(Index $index, $table)
+    {
+        $this->tryMethod('dropIndex', $index->getQuotedName($this->_platform), $table);
+        $this->createIndex($index, $table);
+    }
+
+    /**
+     * Drop and create a new foreign key
+     *
+     * @param ForeignKeyConstraint  $foreignKey    associative array that defines properties of the foreign key to be created.
+     * @param string|Table          $table         name of the table on which the foreign key is to be created
+     */
+    public function dropAndCreateForeignKey(ForeignKeyConstraint $foreignKey, $table)
+    {
+        $this->tryMethod('dropForeignKey', $foreignKey, $table);
+        $this->createForeignKey($foreignKey, $table);
+    }
+
+    /**
+     * Drop and create a new sequence
+     *
+     * @param Sequence $sequence
+     * @throws \Doctrine\DBAL\ConnectionException     if something fails at database level
+     */
+    public function dropAndCreateSequence(Sequence $sequence)
+    {
+        $this->tryMethod('dropSequence', $sequence->getQuotedName($this->_platform));
+        $this->createSequence($sequence);
+    }
+
+    /**
+     * Drop and create a new table.
+     *
+     * @param Table $table
+     */
+    public function dropAndCreateTable(Table $table)
+    {
+        $this->tryMethod('dropTable', $table->getQuotedName($this->_platform));
+        $this->createTable($table);
+    }
+
+    /**
+     * Drop and creates a new database.
+     *
+     * @param string $database The name of the database to create.
+     */
+    public function dropAndCreateDatabase($database)
+    {
+        $this->tryMethod('dropDatabase', $database);
+        $this->createDatabase($database);
+    }
+
+    /**
+     * Drop and create a new view
+     *
+     * @param View $view
+     */
+    public function dropAndCreateView(View $view)
+    {
+        $this->tryMethod('dropView', $view->getQuotedName($this->_platform));
+        $this->createView($view);
+    }
+
+    /* alterTable() Methods */
+
+    /**
+     * Alter an existing tables schema
+     *
+     * @param TableDiff $tableDiff
+     */
+    public function alterTable(TableDiff $tableDiff)
+    {
+        $queries = $this->_platform->getAlterTableSQL($tableDiff);
+        if (is_array($queries) && count($queries)) {
+            foreach ($queries as $ddlQuery) {
+                $this->_execSql($ddlQuery);
+            }
+        }
+    }
+
+    /**
+     * Rename a given table to another name
+     *
+     * @param string $name     The current name of the table
+     * @param string $newName  The new name of the table
+     */
+    public function renameTable($name, $newName)
+    {
+        $tableDiff = new TableDiff($name);
+        $tableDiff->newName = $newName;
+        $this->alterTable($tableDiff);
+    }
+
+    /**
+     * Methods for filtering return values of list*() methods to convert
+     * the native DBMS data definition to a portable Doctrine definition
+     */
+
+    protected function _getPortableDatabasesList($databases)
+    {
+        $list = array();
+        foreach ($databases as $value) {
+            if ($value = $this->_getPortableDatabaseDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableDatabaseDefinition($database)
+    {
+        return $database;
+    }
+
+    protected function _getPortableFunctionsList($functions)
+    {
+        $list = array();
+        foreach ($functions as $value) {
+            if ($value = $this->_getPortableFunctionDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableFunctionDefinition($function)
+    {
+        return $function;
+    }
+
+    protected function _getPortableTriggersList($triggers)
+    {
+        $list = array();
+        foreach ($triggers as $value) {
+            if ($value = $this->_getPortableTriggerDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableTriggerDefinition($trigger)
+    {
+        return $trigger;
+    }
+
+    protected function _getPortableSequencesList($sequences)
+    {
+        $list = array();
+        foreach ($sequences as $value) {
+            if ($value = $this->_getPortableSequenceDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    /**
+     * @param array $sequence
+     * @return Sequence
+     */
+    protected function _getPortableSequenceDefinition($sequence)
+    {
+        throw DBALException::notSupported('Sequences');
+    }
+
+    /**
+     * Independent of the database the keys of the column list result are lowercased.
+     *
+     * The name of the created column instance however is kept in its case.
+     *
+     * @param  string $table The name of the table.
+     * @param  string $database
+     * @param  array  $tableColumns
+     * @return array
+     */
+    protected function _getPortableTableColumnList($table, $database, $tableColumns)
+    {
+        $eventManager = $this->_platform->getEventManager();
+
+        $list = array();
+        foreach ($tableColumns as $tableColumn) {
+            $column = null;
+            $defaultPrevented = false;
+
+            if (null !== $eventManager && $eventManager->hasListeners(Events::onSchemaColumnDefinition)) {
+                $eventArgs = new SchemaColumnDefinitionEventArgs($tableColumn, $table, $database, $this->_conn);
+                $eventManager->dispatchEvent(Events::onSchemaColumnDefinition, $eventArgs);
+
+                $defaultPrevented = $eventArgs->isDefaultPrevented();
+                $column = $eventArgs->getColumn();
+            }
+
+            if ( ! $defaultPrevented) {
+                $column = $this->_getPortableTableColumnDefinition($tableColumn);
+            }
+
+            if ($column) {
+                $name = strtolower($column->getQuotedName($this->_platform));
+                $list[$name] = $column;
+            }
+        }
+        return $list;
+    }
+
+    /**
+     * Get Table Column Definition
+     *
+     * @param array $tableColumn
+     * @return Column
+     */
+    abstract protected function _getPortableTableColumnDefinition($tableColumn);
+
+    /**
+     * Aggregate and group the index results according to the required data result.
+     *
+     * @param  array $tableIndexRows
+     * @param  string $tableName
+     * @return array
+     */
+    protected function _getPortableTableIndexesList($tableIndexRows, $tableName=null)
+    {
+        $result = array();
+        foreach($tableIndexRows as $tableIndex) {
+            $indexName = $keyName = $tableIndex['key_name'];
+            if($tableIndex['primary']) {
+                $keyName = 'primary';
+            }
+            $keyName = strtolower($keyName);
+
+            if(!isset($result[$keyName])) {
+                $result[$keyName] = array(
+                    'name' => $indexName,
+                    'columns' => array($tableIndex['column_name']),
+                    'unique' => $tableIndex['non_unique'] ? false : true,
+                    'primary' => $tableIndex['primary'],
+                    'flags' => isset($tableIndex['flags']) ? $tableIndex['flags'] : array(),
+                );
+            } else {
+                $result[$keyName]['columns'][] = $tableIndex['column_name'];
+            }
+        }
+
+        $eventManager = $this->_platform->getEventManager();
+
+        $indexes = array();
+        foreach($result as $indexKey => $data) {
+            $index = null;
+            $defaultPrevented = false;
+
+            if (null !== $eventManager && $eventManager->hasListeners(Events::onSchemaIndexDefinition)) {
+                $eventArgs = new SchemaIndexDefinitionEventArgs($data, $tableName, $this->_conn);
+                $eventManager->dispatchEvent(Events::onSchemaIndexDefinition, $eventArgs);
+
+                $defaultPrevented = $eventArgs->isDefaultPrevented();
+                $index = $eventArgs->getIndex();
+            }
+
+            if ( ! $defaultPrevented) {
+                $index = new Index($data['name'], $data['columns'], $data['unique'], $data['primary'], $data['flags']);
+            }
+
+            if ($index) {
+                $indexes[$indexKey] = $index;
+            }
+        }
+
+        return $indexes;
+    }
+
+    protected function _getPortableTablesList($tables)
+    {
+        $list = array();
+        foreach ($tables as $value) {
+            if ($value = $this->_getPortableTableDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableTableDefinition($table)
+    {
+        return $table;
+    }
+
+    protected function _getPortableUsersList($users)
+    {
+        $list = array();
+        foreach ($users as $value) {
+            if ($value = $this->_getPortableUserDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableUserDefinition($user)
+    {
+        return $user;
+    }
+
+    protected function _getPortableViewsList($views)
+    {
+        $list = array();
+        foreach ($views as $value) {
+            if ($view = $this->_getPortableViewDefinition($value)) {
+                $viewName = strtolower($view->getQuotedName($this->_platform));
+                $list[$viewName] = $view;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableViewDefinition($view)
+    {
+        return false;
+    }
+
+    protected function _getPortableTableForeignKeysList($tableForeignKeys)
+    {
+        $list = array();
+        foreach ($tableForeignKeys as $value) {
+            if ($value = $this->_getPortableTableForeignKeyDefinition($value)) {
+                $list[] = $value;
+            }
+        }
+        return $list;
+    }
+
+    protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
+    {
+        return $tableForeignKey;
+    }
+
+    protected function _execSql($sql)
+    {
+        foreach ((array) $sql as $query) {
+            $this->_conn->executeUpdate($query);
+        }
+    }
+
+    /**
+     * Create a schema instance for the current database.
+     *
+     * @return Schema
+     */
+    public function createSchema()
+    {
+        $sequences = array();
+        if($this->_platform->supportsSequences()) {
+            $sequences = $this->listSequences();
+        }
+        $tables = $this->listTables();
+
+        return new Schema($tables, $sequences, $this->createSchemaConfig());
+    }
+
+    /**
+     * Create the configuration for this schema.
+     *
+     * @return SchemaConfig
+     */
+    public function createSchemaConfig()
+    {
+        $schemaConfig = new SchemaConfig();
+        $schemaConfig->setMaxIdentifierLength($this->_platform->getMaxIdentifierLength());
+
+        $searchPaths = $this->getSchemaSearchPaths();
+        if (isset($searchPaths[0])) {
+            $schemaConfig->setName($searchPaths[0]);
+        }
+
+        $params = $this->_conn->getParams();
+        if (isset($params['defaultTableOptions'])) {
+            $schemaConfig->setDefaultTableOptions($params['defautTableOptions']);
+        }
+
+        return $schemaConfig;
+    }
+
+    /**
+     * The search path for namespaces in the currently connected database.
+     *
+     * The first entry is usually the default namespace in the Schema. All
+     * further namespaces contain tables/sequences which can also be addressed
+     * with a short, not full-qualified name.
+     *
+     * For databases that don't support subschema/namespaces this method
+     * returns the name of the currently connected database.
+     *
+     * @return array
+     */
+    public function getSchemaSearchPaths()
+    {
+        return array($this->_conn->getDatabase());
+    }
+
+    /**
+     * Given a table comment this method tries to extract a typehint for Doctrine Type, or returns
+     * the type given as default.
+     *
+     * @param  string $comment
+     * @param  string $currentType
+     * @return string
+     */
+    public function extractDoctrineTypeFromComment($comment, $currentType)
+    {
+        if (preg_match("(\(DC2Type:([a-zA-Z0-9_]+)\))", $comment, $match)) {
+            $currentType = $match[1];
+        }
+        return $currentType;
+    }
+
+    public function removeDoctrineTypeFromComment($comment, $type)
+    {
+        return str_replace('(DC2Type:'.$type.')', '', $comment);
+    }
+}