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doctrine2/lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php

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<?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;
/**
* 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>
* @version $Revision$
* @since 2.0
*/
abstract class AbstractSchemaManager
{
protected $_conn;
public function __construct(\Doctrine\DBAL\Connection $conn)
{
$this->_conn = $conn;
}
/**
* lists all databases
*
* @return array
*/
public function listDatabases()
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListDatabasesSql());
}
/**
* lists all availible database functions
*
* @return array
*/
public function listFunctions()
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListFunctionsSql());
}
/**
* Lists all database triggers.
*
* @param string|null $database
* @return array
*/
public function listTriggers($database = null)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListTriggersSql());
}
/**
* lists all database sequences
*
* @param string|null $database
* @return array
*/
public function listSequences($database = null)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListSequencesSql());
}
/**
* Lists table constraints.
*
* @param string $table database table name
* @return array
*/
public function listTableConstraints($table)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListTableConstraintsSql());
}
/**
* Lists table columns.
*
* @param string $table database table name
* @return array
*/
public function listTableColumns($table)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListTableColumnsSql());
}
/**
* Lists table indexes.
*
* @param string $table database table name
* @return array
*/
public function listTableIndexes($table)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListTableIndexesSql());
}
/**
* Lists tables.
*
* @param string|null $database
* @return array
*/
public function listTables($database = null)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListTablesSql());
}
/**
* Lists database users.
*
* @return array
*/
public function listUsers()
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListUsersSql());
}
/**
* Lists database views.
*
* @param string|null $database
* @return array
*/
public function listViews($database = null)
{
return $this->_conn->fetchColumn($this->_conn->getDatabasePlatform()
->getListViewsSql());
}
/**
* drop an existing database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be dropped
* @return void
*/
public function dropDatabase($database)
{
$this->_conn->execute($this->_conn->getDatabasePlatform()
->getDropDatabaseSql($database));
}
/**
* drop an existing table
*
* @param string $table name of table that should be dropped from the database
* @return void
*/
public function dropTable($table)
{
$this->_conn->execute($this->_conn->getDatabasePlatform()
->getDropTableSql($table));
}
/**
* drop existing index
*
* @param string $table name of table that should be used in method
* @param string $name name of the index to be dropped
* @return void
*/
public function dropIndex($table, $name)
{
return $this->_conn->exec($this->_conn->getDatabasePlatform()
->getDropIndexSql($table, $name));
}
/**
* drop existing constraint
*
* @param string $table name of table that should be used in method
* @param string $name name of the constraint to be dropped
* @param string $primary hint if the constraint is primary
* @return void
*/
public function dropConstraint($table, $name, $primary = false)
{
$table = $this->_conn->getDatabasePlatform()->quoteIdentifier($table);
$name = $this->_conn->getDatabasePlatform()->quoteIdentifier($name);
return $this->_conn->exec('ALTER TABLE ' . $table . ' DROP CONSTRAINT ' . $name);
}
/**
* drop existing foreign key
*
* @param string $table name of table that should be used in method
* @param string $name name of the foreign key to be dropped
* @return void
*/
public function dropForeignKey($table, $name)
{
return $this->dropConstraint($table, $name);
}
/**
* drop existing sequence
* (this method is implemented by the drivers)
*
* @throws Doctrine\DBAL\ConnectionException if something fails at database level
* @param string $sequenceName name of the sequence to be dropped
* @return void
*/
public function dropSequence($sequenceName)
{
$this->_conn->exec($this->_conn->getDatabasePlatform()->getDropSequenceSql($sequenceName));
}
/**
* create a new database
* (this method is implemented by the drivers)
*
* @param string $name name of the database that should be created
* @return void
*/
public function createDatabase($database)
{
$this->_conn->execute($this->_conn->getDatabasePlatform()->getCreateDatabaseSql($database));
}
/**
* create a new table
*
* @param string $name Name of the database that should be created
* @param array $fields Associative array that contains the definition of each field of the new table
* @param array $options An associative array of table options:
* @see Doctrine_Export::createTableSql()
*
* @return void
*/
public function createTable($name, array $columns, array $options = array())
{
// Build array of the primary keys if any of the individual field definitions
// specify primary => true
$count = 0;
foreach ($columns as $columnName => $definition) {
if (isset($definition['primary']) && $definition['primary']) {
if ($count == 0) {
$options['primary'] = array();
}
++$count;
$options['primary'][] = $columnName;
}
}
$sql = (array) $this->_conn->getDatabasePlatform()->getCreateTableSql(
$name, $columns, $options);
foreach ($sql as $query) {
$this->_conn->execute($query);
}
}
/**
* create sequence
*
* @throws Doctrine\DBAL\ConnectionException if something fails at database level
* @param string $seqName name of the sequence to be created
* @param string $start start value of the sequence; default is 1
* @param array $options An associative array of table options:
* array(
* 'comment' => 'Foo',
* 'charset' => 'utf8',
* 'collate' => 'utf8_unicode_ci',
* );
* @return void
*/
public function createSequence($seqName, $start = 1, array $options = array())
{
return $this->_conn->execute($this->_conn->getDatabasePlatform()
->getCreateSequenceSql($seqName, $start, $options));
}
/**
* create a constraint on a table
*
* @param string $table name of the table on which the constraint is to be created
* @param string $name name of the constraint to be created
* @param array $definition associative array that defines properties of the constraint to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the constraint fields as array
* constraints. Each entry of this array is set to another type of associative
* array that specifies properties of the constraint that are specific to
* each field.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(),
* 'last_login' => array()
* )
* )
* @return void
*/
public function createConstraint($table, $name, $definition)
{
$sql = $this->_conn->getDatabasePlatform()->getCreateConstraintSql($table, $name, $definition);
return $this->_conn->exec($sql);
}
/**
* Get the stucture of a field into an array
*
* @param string $table name of the table on which the index is to be created
* @param string $name name of the index to be created
* @param array $definition associative array that defines properties of the index to be created.
* Currently, only one property named FIELDS is supported. This property
* is also an associative with the names of the index fields as array
* indexes. Each entry of this array is set to another type of associative
* array that specifies properties of the index that are specific to
* each field.
*
* Currently, only the sorting property is supported. It should be used
* to define the sorting direction of the index. It may be set to either
* ascending or descending.
*
* Not all DBMS support index sorting direction configuration. The DBMS
* drivers of those that do not support it ignore this property. Use the
* function supports() to determine whether the DBMS driver can manage indexes.
*
* Example
* array(
* 'fields' => array(
* 'user_name' => array(
* 'sorting' => 'ascending'
* ),
* 'last_login' => array()
* )
* )
* @return void
*/
public function createIndex($table, $name, array $definition)
{
return $this->_conn->execute($this->_conn->getDatabasePlatform()
->getCreateIndexSql($table, $name, $definition));
}
/**
* createForeignKey
*
* @param string $table name of the table on which the foreign key is to be created
* @param array $definition associative array that defines properties of the foreign key to be created.
* @return string
*/
public function createForeignKey($table, array $definition)
{
$sql = $this->_conn->getDatabasePlatform()->getCreateForeignKeySql($table, $definition);
return $this->_conn->execute($sql);
}
/**
* alter an existing table
* (this method is implemented by the drivers)
*
* @param string $name name of the table that is intended to be changed.
* @param array $changes associative array that contains the details of each type
* of change that is intended to be performed. The types of
* changes that are currently supported are defined as follows:
*
* name
*
* New name for the table.
*
* add
*
* Associative array with the names of fields to be added as
* indexes of the array. The value of each entry of the array
* should be set to another associative array with the properties
* of the fields to be added. The properties of the fields should
* be the same as defined by the MDB2 parser.
*
*
* remove
*
* Associative array with the names of fields to be removed as indexes
* of the array. Currently the values assigned to each entry are ignored.
* An empty array should be used for future compatibility.
*
* rename
*
* Associative array with the names of fields to be renamed as indexes
* of the array. The value of each entry of the array should be set to
* another associative array with the entry named name with the new
* field name and the entry named Declaration that is expected to contain
* the portion of the field declaration already in DBMS specific SQL code
* as it is used in the CREATE TABLE statement.
*
* change
*
* Associative array with the names of the fields to be changed as indexes
* of the array. Keep in mind that if it is intended to change either the
* name of a field and any other properties, the change array entries
* should have the new names of the fields as array indexes.
*
* The value of each entry of the array should be set to another associative
* array with the properties of the fields to that are meant to be changed as
* array entries. These entries should be assigned to the new values of the
* respective properties. The properties of the fields should be the same
* as defined by the MDB2 parser.
*
* Example
* array(
* 'name' => 'userlist',
* 'add' => array(
* 'quota' => array(
* 'type' => 'integer',
* 'unsigned' => 1
* )
* ),
* 'remove' => array(
* 'file_limit' => array(),
* 'time_limit' => array()
* ),
* 'change' => array(
* 'name' => array(
* 'length' => '20',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 20,
* ),
* )
* ),
* 'rename' => array(
* 'sex' => array(
* 'name' => 'gender',
* 'definition' => array(
* 'type' => 'text',
* 'length' => 1,
* 'default' => 'M',
* ),
* )
* )
* )
*
* @param boolean $check indicates whether the function should just check if the DBMS driver
* can perform the requested table alterations if the value is true or
* actually perform them otherwise.
* @return void
*/
public function alterTable($name, array $changes, $check = false)
{
$sql = $this->_conn->getDatabasePlatform()->getAlterTableSql($name, $changes, $check);
if (is_string($sql) && $sql) {
$this->_conn->execute($sql);
}
}
}
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