85 lines
2.4 KiB
PHP
85 lines
2.4 KiB
PHP
<?php
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/*
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* $Id: PgSQLIdGenerator.php,v 1.5 2004/03/19 14:19:50 hlellelid Exp $
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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 please see
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* <http://creole.phpdb.org>.
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*/
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require_once 'creole/IdGenerator.php';
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/**
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* PostgreSQL IdGenerator implemenation.
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*
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* @author Hans Lellelid <hans@xmpl.org>
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* @version $Revision: 1.5 $
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* @package creole.drivers.pgsql
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*/
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class PgSQLIdGenerator implements IdGenerator {
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/** Connection object that instantiated this class */
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private $conn;
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/**
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* Creates a new IdGenerator class, saves passed connection for use
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* later by getId() method.
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* @param Connection $conn
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*/
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public function __construct(Connection $conn)
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{
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$this->conn = $conn;
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}
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/**
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* @see IdGenerator::isBeforeInsert()
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*/
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public function isBeforeInsert()
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{
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return true;
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}
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/**
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* @see IdGenerator::isAfterInsert()
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*/
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public function isAfterInsert()
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{
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return false;
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}
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/**
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* @see IdGenerator::getIdMethod()
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*/
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public function getIdMethod()
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{
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return self::SEQUENCE;
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}
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/**
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* @see IdGenerator::getId()
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*/
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public function getId($name = null)
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{
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if ($name === null) {
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throw new SQLException("You must specify the sequence name when calling getId() method.");
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}
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$rs = $this->conn->executeQuery("SELECT nextval('" . pg_escape_string ( $name ) . "')", ResultSet::FETCHMODE_NUM);
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$rs->next();
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return $rs->getInt(1);
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}
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}
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