552 lines
24 KiB
PHP
552 lines
24 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.com>.
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*/
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Doctrine::autoload('Doctrine_Export');
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/**
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* Doctrine_Export_Sqlite
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*
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* @package Doctrine
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* @subpackage Export
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
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* @author Lorenzo Alberton <l.alberton@quipo.it> (PEAR MDB2 Interbase driver)
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.phpdoctrine.com
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* @since 1.0
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* @version $Revision$
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*/
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class Doctrine_Export_Firebird extends Doctrine_Export
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{
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/**
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* create a new database
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*
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* @param string $name name of the database that should be created
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* @return void
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*/
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public function createDatabase($name)
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{
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throw new Doctrine_Export_Exception(
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'PHP Interbase API does not support direct queries. You have to ' .
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'create the db manually by using isql command or a similar program');
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}
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/**
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* drop an existing database
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*
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* @param string $name name of the database that should be dropped
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* @return void
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*/
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public function dropDatabase($name)
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{
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throw new Doctrine_Export_Exception(
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'PHP Interbase API does not support direct queries. You have ' .
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'to drop the db manually by using isql command or a similar program');
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}
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/**
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* add an autoincrement sequence + trigger
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*
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* @param string $name name of the PK field
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* @param string $table name of the table
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* @param string $start start value for the sequence
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* @return void
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*/
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public function _makeAutoincrement($name, $table, $start = null)
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{
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if (is_null($start)) {
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$this->conn->beginTransaction();
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$query = 'SELECT MAX(' . $this->conn->quoteIdentifier($name, true) . ') FROM ' . $this->conn->quoteIdentifier($table, true);
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$start = $this->conn->fetchOne($query, 'integer');
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++$start;
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$result = $this->createSequence($table, $start);
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$this->conn->commit();
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} else {
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$result = $this->createSequence($table, $start);
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}
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$sequence_name = $this->conn->formatter->getSequenceName($table);
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$trigger_name = $this->conn->quoteIdentifier($table . '_AUTOINCREMENT_PK', true);
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$table = $this->conn->quoteIdentifier($table, true);
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$name = $this->conn->quoteIdentifier($name, true);
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$triggerSql = 'CREATE TRIGGER ' . $trigger_name . ' FOR ' . $table . '
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ACTIVE BEFORE INSERT POSITION 0
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AS
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BEGIN
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IF (NEW.' . $name . ' IS NULL OR NEW.' . $name . ' = 0) THEN
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NEW.' . $name . ' = GEN_ID('.$sequence_name.', 1);
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END';
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$result = $this->conn->exec($triggerSql);
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// TODO ? $this->_silentCommit();
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return $result;
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}
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/**
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* drop an existing autoincrement sequence + trigger
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*
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* @param string $table name of the table
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* @return void
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*/
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public function _dropAutoincrement($table)
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{
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$result = $this->dropSequence($table);
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//remove autoincrement trigger associated with the table
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$table = $this->conn->quote(strtoupper($table));
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$triggerName = $this->conn->quote(strtoupper($table) . '_AUTOINCREMENT_PK');
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return $this->conn->exec("DELETE FROM RDB\$TRIGGERS WHERE UPPER(RDB\$RELATION_NAME)=" . $table . " AND UPPER(RDB\$TRIGGER_NAME)=" . $triggerName);
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}
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/**
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* create a new table
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*
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* @param string $name Name of the database that should be created
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* @param array $fields Associative array that contains the definition of each field of the new table
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* The indexes of the array entries are the names of the fields of the table an
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* the array entry values are associative arrays like those that are meant to be
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* passed with the field definitions to get[Type]Declaration() functions.
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*
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* Example
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* array(
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*
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* 'id' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1,
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* 'notnull' => 1,
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* 'default' => 0,
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* ),
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* 'name' => array(
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* 'type' => 'text',
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* 'length' => 12,
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* ),
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* 'description' => array(
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* 'type' => 'text',
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* 'length' => 12,
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* )
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* );
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* @param array $options An associative array of table options:
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*
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* @return void
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*/
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public function createTable($name, array $fields, array $options = array()) {
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parent::createTable($name, $fields, $options);
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// TODO ? $this->_silentCommit();
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foreach ($fields as $field_name => $field) {
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if ( ! empty($field['autoincrement'])) {
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//create PK constraint
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$pk_definition = array(
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'fields' => array($field_name => array()),
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'primary' => true,
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);
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//$pk_name = $name.'_PK';
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$pk_name = null;
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$result = $this->createConstraint($name, $pk_name, $pk_definition);
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//create autoincrement sequence + trigger
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return $this->_makeAutoincrement($field_name, $name, 1);
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}
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}
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}
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/**
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* Check if planned changes are supported
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*
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* @param string $name name of the database that should be dropped
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* @return void
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*/
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public function checkSupportedChanges(&$changes)
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{
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foreach ($changes as $change_name => $change) {
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switch ($change_name) {
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case 'notnull':
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throw new Doctrine_DataDict_Exception('it is not supported changes to field not null constraint');
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case 'default':
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throw new Doctrine_DataDict_Exception('it is not supported changes to field default value');
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case 'length':
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/*
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return throw new Doctrine_DataDict_Firebird_Exception('it is not supported changes to field default length');
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*/
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case 'unsigned':
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case 'type':
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case 'declaration':
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case 'definition':
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break;
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default:
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throw new Doctrine_DataDict_Exception('it is not supported change of type' . $change_name);
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}
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}
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return true;
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}
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/**
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* drop an existing table
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*
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* @param string $name name of the table that should be dropped
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* @return mixed MDB2_OK on success, a MDB2 error on failure
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* @access public
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*/
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public function dropTable($name)
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{
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$result = $this->_dropAutoincrement($name);
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$result = parent::dropTable($name);
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//$this->_silentCommit();
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return $result;
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}
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/**
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* alter an existing table
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*
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* @param string $name name of the table that is intended to be changed.
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* @param array $changes associative array that contains the details of each type
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* of change that is intended to be performed. The types of
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* changes that are currently supported are defined as follows:
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*
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* name
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*
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* New name for the table.
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*
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* add
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*
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* Associative array with the names of fields to be added as
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* indexes of the array. The value of each entry of the array
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* should be set to another associative array with the properties
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* of the fields to be added. The properties of the fields should
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* be the same as defined by the Metabase parser.
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*
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*
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* remove
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*
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* Associative array with the names of fields to be removed as indexes
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* of the array. Currently the values assigned to each entry are ignored.
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* An empty array should be used for future compatibility.
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*
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* rename
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*
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* Associative array with the names of fields to be renamed as indexes
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* of the array. The value of each entry of the array should be set to
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* another associative array with the entry named name with the new
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* field name and the entry named Declaration that is expected to contain
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* the portion of the field declaration already in DBMS specific SQL code
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* as it is used in the CREATE TABLE statement.
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*
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* change
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*
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* Associative array with the names of the fields to be changed as indexes
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* of the array. Keep in mind that if it is intended to change either the
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* name of a field and any other properties, the change array entries
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* should have the new names of the fields as array indexes.
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*
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* The value of each entry of the array should be set to another associative
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* array with the properties of the fields to that are meant to be changed as
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* array entries. These entries should be assigned to the new values of the
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* respective properties. The properties of the fields should be the same
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* as defined by the Metabase parser.
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*
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* Example
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* array(
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* 'name' => 'userlist',
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* 'add' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* )
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* ),
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* 'remove' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'change' => array(
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* 'name' => array(
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* 'length' => '20',
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* 'definition' => array(
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* 'type' => 'text',
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* 'length' => 20,
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* ),
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* )
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* ),
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* 'rename' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* 'definition' => array(
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* 'type' => 'text',
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* 'length' => 1,
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* 'default' => 'M',
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* ),
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* )
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* )
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* )
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*
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @return void
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*/
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public function alterTable($name, array $changes, $check = false)
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{
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foreach ($changes as $changeName => $change) {
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switch ($changeName) {
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case 'add':
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case 'remove':
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case 'rename':
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break;
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case 'change':
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foreach ($changes['change'] as $field) {
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$this->checkSupportedChanges($field);
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}
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break;
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default:
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throw new Doctrine_DataDict_Exception('change type ' . $changeName . ' not yet supported');
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}
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}
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if ($check) {
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return true;
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}
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$query = '';
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if ( ! empty($changes['add']) && is_array($changes['add'])) {
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foreach ($changes['add'] as $fieldName => $field) {
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if ($query) {
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$query.= ', ';
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}
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$query.= 'ADD ' . $this->getDeclaration($fieldName, $field);
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}
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}
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if ( ! empty($changes['remove']) && is_array($changes['remove'])) {
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foreach ($changes['remove'] as $field_name => $field) {
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if ($query) {
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$query.= ', ';
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}
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$field_name = $this->conn->quoteIdentifier($field_name, true);
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$query.= 'DROP ' . $field_name;
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}
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}
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if ( ! empty($changes['rename']) && is_array($changes['rename'])) {
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foreach ($changes['rename'] as $field_name => $field) {
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if ($query) {
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$query.= ', ';
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}
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$field_name = $this->conn->quoteIdentifier($field_name, true);
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$query.= 'ALTER ' . $field_name . ' TO ' . $this->conn->quoteIdentifier($field['name'], true);
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}
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}
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if ( ! empty($changes['change']) && is_array($changes['change'])) {
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// missing support to change DEFAULT and NULLability
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foreach ($changes['change'] as $fieldName => $field) {
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$this->checkSupportedChanges($field);
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if ($query) {
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$query.= ', ';
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}
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$this->conn->loadModule('Datatype', null, true);
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$field_name = $this->conn->quoteIdentifier($fieldName, true);
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$query.= 'ALTER ' . $field_name.' TYPE ' . $this->getTypeDeclaration($field['definition']);
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}
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}
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if ( ! strlen($query)) {
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return false;
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}
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$name = $this->conn->quoteIdentifier($name, true);
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$result = $this->conn->exec('ALTER TABLE ' . $name . ' ' . $query);
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$this->_silentCommit();
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return $result;
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}
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/**
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* Get the stucture of a field into an array
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*
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* @param string $table name of the table on which the index is to be created
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* @param string $name name of the index to be created
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* @param array $definition associative array that defines properties of the index to be created.
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* Currently, only one property named FIELDS is supported. This property
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* is also an associative with the names of the index fields as array
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* indexes. Each entry of this array is set to another type of associative
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* array that specifies properties of the index that are specific to
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* each field.
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*
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* Currently, only the sorting property is supported. It should be used
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* to define the sorting direction of the index. It may be set to either
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* ascending or descending.
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*
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* Not all DBMS support index sorting direction configuration. The DBMS
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* drivers of those that do not support it ignore this property. Use the
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* function support() to determine whether the DBMS driver can manage indexes.
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* Example
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* array(
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* 'fields' => array(
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* 'user_name' => array(
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* 'sorting' => 'ascending'
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* ),
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* 'last_login' => array()
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* )
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* )
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* @return void
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*/
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public function createIndexSql($table, $name, array $definition)
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{
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$query = 'CREATE';
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$query_sort = '';
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foreach ($definition['fields'] as $field) {
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if ( ! strcmp($query_sort, '') && isset($field['sorting'])) {
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switch ($field['sorting']) {
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case 'ascending':
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$query_sort = ' ASC';
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break;
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case 'descending':
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$query_sort = ' DESC';
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break;
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}
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}
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}
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$table = $this->conn->quoteIdentifier($table, true);
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$name = $this->conn->quoteIdentifier($this->conn->formatter->getIndexName($name), true);
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$query .= $query_sort. ' INDEX ' . $name . ' ON ' . $table;
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$fields = array();
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foreach (array_keys($definition['fields']) as $field) {
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$fields[] = $this->conn->quoteIdentifier($field, true);
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}
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$query .= ' ('.implode(', ', $fields) . ')';
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return $query;
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}
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/**
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* create a constraint on a table
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*
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* @param string $table name of the table on which the constraint is to be created
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* @param string $name name of the constraint to be created
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* @param array $definition associative array that defines properties of the constraint to be created.
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* Currently, only one property named FIELDS is supported. This property
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* is also an associative with the names of the constraint fields as array
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* constraints. Each entry of this array is set to another type of associative
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* array that specifies properties of the constraint that are specific to
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* each field.
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*
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* Example
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* array(
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* 'fields' => array(
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* 'user_name' => array(),
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* 'last_login' => array(),
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* )
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* )
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* @return void
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*/
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public function createConstraint($table, $name, $definition)
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{
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$table = $this->conn->quoteIdentifier($table, true);
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if ( ! empty($name)) {
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$name = $this->conn->quoteIdentifier($this->conn->formatter->getIndexName($name), true);
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}
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$query = "ALTER TABLE $table ADD";
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if ( ! empty($definition['primary'])) {
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if ( ! empty($name)) {
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$query.= ' CONSTRAINT '.$name;
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}
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$query.= ' PRIMARY KEY';
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} else {
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$query.= ' CONSTRAINT '. $name;
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if ( ! empty($definition['unique'])) {
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$query.= ' UNIQUE';
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}
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}
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$fields = array();
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foreach (array_keys($definition['fields']) as $field) {
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$fields[] = $this->conn->quoteIdentifier($field, true);
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}
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$query .= ' ('. implode(', ', $fields) . ')';
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$result = $this->conn->exec($query);
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// TODO ? $this->_silentCommit();
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return $result;
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}
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/**
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* A method to return the required SQL string that fits between CREATE ... TABLE
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* to create the table as a temporary table.
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*
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* @return string The string required to be placed between "CREATE" and "TABLE"
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* to generate a temporary table, if possible.
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*/
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public function getTemporaryTableQuery()
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{
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return 'GLOBAL TEMPORARY';
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}
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/**
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* create sequence
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*
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* @param string $seqName name of the sequence to be created
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* @param string $start start value of the sequence; default is 1
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* @param array $options An associative array of table options:
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* array(
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* 'comment' => 'Foo',
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* 'charset' => 'utf8',
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* 'collate' => 'utf8_unicode_ci',
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* );
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* @return boolean
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*/
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public function createSequence($seqName, $start = 1, array $options = array())
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{
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$sequenceName = $this->conn->formatter->getSequenceName($seqName);
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$this->conn->exec('CREATE GENERATOR ' . $sequenceName);
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try {
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$this->conn->exec('SET GENERATOR ' . $sequenceName . ' TO ' . ($start-1));
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return true;
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} catch (Doctrine_Connection_Exception $e) {
|
|
try {
|
|
$this->dropSequence($seqName);
|
|
} catch(Doctrine_Connection_Exception $e) {
|
|
throw new Doctrine_Export_Exception('Could not drop inconsistent sequence table');
|
|
}
|
|
}
|
|
throw new Doctrine_Export_Exception('could not create sequence table');
|
|
}
|
|
|
|
/**
|
|
* drop existing sequence
|
|
*
|
|
* @param string $seqName name of the sequence to be dropped
|
|
* @return void
|
|
*/
|
|
public function dropSequenceSql($seqName)
|
|
{
|
|
$sequenceName = $this->conn->formatter->getSequenceName($seqName);
|
|
$sequenceName = $this->conn->quote($sequenceName);
|
|
$query = "DELETE FROM RDB\$GENERATORS WHERE UPPER(RDB\$GENERATOR_NAME)=" . $sequenceName;
|
|
|
|
return $query;
|
|
}
|
|
} |