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<?php
/*
* $Id: View.php 6162 2009-07-24 19:39:27Z jwage $
*
* 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.phpdoctrine.org>.
*/
/**
* Doctrine_View
*
* this class represents a database view
*
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @package Doctrine
* @subpackage View
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision: 6162 $
*/
class Doctrine_View
{
/**
* SQL DROP constant
*/
const DROP = 'DROP VIEW %s';
/**
* SQL CREATE constant
*/
const CREATE = 'CREATE VIEW %s AS %s';
/**
* SQL SELECT constant
*/
const SELECT = 'SELECT * FROM %s';
/**
* @var string $name the name of the view
*/
protected $_name;
/**
* @var Doctrine_Query $query the DQL query object this view is hooked into
*/
protected $_query;
/**
* @var Doctrine_Connection $conn the connection object
*/
protected $_conn;
/**
* @var string $_dql The view dql string
*/
protected $_dql;
/**
* @var string $_sql The view sql string
*/
protected $_sql;
/**
* constructor
*
* @param Doctrine_Query $query
*/
public function __construct(Doctrine_Query $query, $viewName)
{
$this->_name = $viewName;
$this->_query = $query;
$this->_query->setView($this);
$this->_conn = $query->getConnection();
$this->_dql = $query->getDql();
$this->_sql = $query->getSqlQuery();
}
/**
* returns the associated query object
*
* @return Doctrine_Query
*/
public function getQuery()
{
return $this->_query;
}
/**
* returns the name of this view
*
* @return string
*/
public function getName()
{
return $this->_name;
}
/**
* returns the connection object
*
* @return Doctrine_Connection
*/
public function getConnection()
{
return $this->_conn;
}
/**
* creates this view
*
* @throws Doctrine_View_Exception
* @return void
*/
public function create()
{
$sql = sprintf(self::CREATE, $this->_name, $this->_query->getSqlQuery());
try {
$this->_conn->execute($sql, $this->_query->getFlattenedParams());
} catch(Doctrine_Exception $e) {
throw new Doctrine_View_Exception($e->__toString());
}
}
/**
* drops this view from the database
*
* @throws Doctrine_View_Exception
* @return void
*/
public function drop()
{
try {
$this->_conn->execute(sprintf(self::DROP, $this->_name));
} catch(Doctrine_Exception $e) {
throw new Doctrine_View_Exception($e->__toString());
}
}
/**
* returns a collection of Doctrine_Record objects
*
* @return Doctrine_Collection
*/
public function execute()
{
return $this->_query->execute();
}
/**
* returns the select sql for this view
*
* @return string
*/
public function getSelectSql()
{
return sprintf(self::SELECT, $this->_name);
}
/**
* Get the view sql string
*
* @return string $sql
*/
public function getViewSql()
{
return $this->_sql;
}
/**
* Get the view dql string
*
* @return string $dql
*/
public function getViewDql()
{
return $this->_dql;
}
}
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