kekrozsak/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php
Polonkai Gergely 082a0130c2 Initial commit with Symfony 2.1+Vendors
Signed-off-by: Gergely POLONKAI (W00d5t0ck) <polesz@w00d5t0ck.info>
2012-07-01 09:52:20 +02:00

891 lines
26 KiB
PHP

<?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 LGPL. 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\Platform\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 $key => $value) {
if ($value = $this->_getPortableDatabaseDefinition($value)) {
$list[] = $value;
}
}
return $list;
}
protected function _getPortableDatabaseDefinition($database)
{
return $database;
}
protected function _getPortableFunctionsList($functions)
{
$list = array();
foreach ($functions as $key => $value) {
if ($value = $this->_getPortableFunctionDefinition($value)) {
$list[] = $value;
}
}
return $list;
}
protected function _getPortableFunctionDefinition($function)
{
return $function;
}
protected function _getPortableTriggersList($triggers)
{
$list = array();
foreach ($triggers as $key => $value) {
if ($value = $this->_getPortableTriggerDefinition($value)) {
$list[] = $value;
}
}
return $list;
}
protected function _getPortableTriggerDefinition($trigger)
{
return $trigger;
}
protected function _getPortableSequencesList($sequences)
{
$list = array();
foreach ($sequences as $key => $value) {
if ($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 $key => $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'],
);
} 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'], $data['primary']);
}
if ($index) {
$indexes[$indexKey] = $index;
}
}
return $indexes;
}
protected function _getPortableTablesList($tables)
{
$list = array();
foreach ($tables as $key => $value) {
if ($value = $this->_getPortableTableDefinition($value)) {
$list[] = $value;
}
}
return $list;
}
protected function _getPortableTableDefinition($table)
{
return $table;
}
protected function _getPortableUsersList($users)
{
$list = array();
foreach ($users as $key => $value) {
if ($value = $this->_getPortableUserDefinition($value)) {
$list[] = $value;
}
}
return $list;
}
protected function _getPortableUserDefinition($user)
{
return $user;
}
protected function _getPortableViewsList($views)
{
$list = array();
foreach ($views as $key => $value) {
if ($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 $key => $value) {
if ($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]);
}
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);
}
}