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<?php
/**
* Copyright 2014
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Accesses configuration settings from $GLOBALS
*
* @since 1.23
*/
class GlobalVarConfig implements Config {
/**
* Prefix to use for configuration variables
* @var string
*/
private $prefix;
/**
* Default builder function
* @return GlobalVarConfig
*/
public static function newInstance() {
return new GlobalVarConfig();
}
public function __construct( $prefix = 'wg' ) {
$this->prefix = $prefix;
}
/**
* @see Config::get
*/
public function get( $name ) {
if ( !$this->has( $name ) ) {
throw new ConfigException( __METHOD__ . ": undefined option: '$name'" );
}
return $this->getWithPrefix( $this->prefix, $name );
}
/**
* @see Config::has
*/
public function has( $name ) {
return $this->hasWithPrefix( $this->prefix, $name );
}
/**
* Get a variable with a given prefix, if not the defaults.
*
* @param string $prefix Prefix to use on the variable, if one.
* @param string $name Variable name without prefix
* @return mixed
*/
protected function getWithPrefix( $prefix, $name ) {
return $GLOBALS[$prefix . $name];
}
/**
* Check if a variable with a given prefix is set
*
* @param string $prefix Prefix to use on the variable
* @param string $name Variable name without prefix
* @return bool
*/
protected function hasWithPrefix( $prefix, $name ) {
$var = $prefix . $name;
return array_key_exists( $var, $GLOBALS );
}
}
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