150 lines
4.0 KiB
PHP
150 lines
4.0 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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/**
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* Doctrine_View
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*
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* this class represents a database view
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*
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @package Doctrine
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @category Object Relational Mapping
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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_View {
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/**
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* SQL DROP constant
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*/
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const DROP = 'DROP VIEW %s';
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/**
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* SQL CREATE constant
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*/
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const CREATE = 'CREATE VIEW %s AS %s';
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/**
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* SQL SELECT constant
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*/
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const SELECT = 'SELECT * FROM %s';
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/**
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* @var string $name the name of the view
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*/
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protected $name;
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/**
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* @var Doctrine_Query $query the DQL query object this view is hooked into
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*/
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protected $query;
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/**
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* @var Doctrine_Connection $conn the connection object
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*/
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protected $conn;
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/**
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* constructor
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*
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* @param Doctrine_Query $query
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*/
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public function __construct(Doctrine_Query $query, $viewName) {
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$this->name = $viewName;
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$this->query = $query;
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$this->query->setView($this);
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$this->conn = $query->getConnection();
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}
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/**
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* getQuery
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* returns the associated query object
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*
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* @return Doctrine_Query
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*/
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public function getQuery() {
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return $this->query;
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}
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/**
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* getName
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* returns the name of this view
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*
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* @return string
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*/
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public function getName() {
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return $this->name;
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}
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/**
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* getConnection
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* returns the connection object
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*
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* @return Doctrine_Connection
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*/
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public function getConnection() {
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return $this->conn;
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}
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/**
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* create
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* creates this view
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*
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* @throws Doctrine_View_Exception
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* @return void
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*/
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public function create() {
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$sql = sprintf(self::CREATE, $this->name, $this->query->getQuery());
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try {
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$this->conn->execute($sql);
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} catch(Doctrine_Exception $e) {
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throw new Doctrine_View_Exception($e->__toString());
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}
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}
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/**
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* drop
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* drops this view from the database
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*
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* @throws Doctrine_View_Exception
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* @return void
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*/
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public function drop() {
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try {
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$this->conn->execute(sprintf(self::DROP, $this->name));
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} catch(Doctrine_Exception $e) {
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throw new Doctrine_View_Exception($e->__toString());
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}
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}
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/**
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* execute
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* executes the view
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* returns a collection of Doctrine_Record objects
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*
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* @return Doctrine_Collection
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*/
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public function execute() {
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return $this->query->execute();
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}
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/**
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* getSelectSql
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* returns the select sql for this view
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*
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* @return string
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*/
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public function getSelectSql() {
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return sprintf(self::SELECT, $this->name);
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}
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}
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