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<?php
/**
* Database CREATE VIEW query
*
* This file is part of Zoph.
*
* Zoph is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Zoph is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Zoph; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @package Zoph
* @author Jeroen Roos
*/
namespace db;
/**
* Database CREATE VIEW query
*
* @package Zoph
* @author Jeroen Roos
*/
class view extends query {
/** @var string name of the table */
private $name;
/** @var select query to use for view */
private $query=array();
/** @var bool create view with IF NOT EXISTS statement */
private $ifNotExists=false;
/**
* Create a new view
* @param string name
*/
public function __construct(string $name) {
$this->name=$name;
}
public function setQuery(select $qry) {
$this->query=$qry;
}
public function ifNotExists($if = true) : void {
if (db::getServerType() != db::MYSQL) {
// MySQL does not support IF NOT EXIST on CREATE VIEW
// For now, we silently ignore.
$this->ifNotExists = $if;
}
}
/**
* Build the query
* @return string create view query
*/
public function __toString() {
return "CREATE VIEW " . ($this->ifNotExists ? "IF NOT EXISTS " : "") .
db::getPrefix() . $this->name . " AS\n" . (string) $this->query;
}
}
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