92 lines
1.9 KiB
PHP
92 lines
1.9 KiB
PHP
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<?php
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/**
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* OpenSQLManager
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*
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* Free Database manager for Open Source Databases
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*
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* @package OpenSQLManager
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012
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* @link https://github.com/aviat4ion/OpenSQLManager
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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namespace OpenSQLManager;
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/**
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* Connection registry
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*
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* Decouples the Settings class from the query builder
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* and organizes database connections
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*
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* @package Query
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* @subpackage Helper Classes
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*/
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class DB_Reg {
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/**
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* Static array of connections
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*/
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private static $instance=array();
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/**
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* Registry access method
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*
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* @param string $key
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* @return object
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*/
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public static function &get_db($key)
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{
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if ( ! isset(self::$instance[$key]))
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{
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// The constructor sets the instance
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new DB_Reg($key);
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}
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return self::$instance[$key];
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}
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// --------------------------------------------------------------------------
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/**
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* Private constructor
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*
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* @param string $key
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*/
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private function __construct($key)
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{
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// Get the db connection parameters for the current database
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$db_params = Settings::get_instance()->get_db($key);
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// Set the current key in the registry
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self::$instance[$key] = new Query_Builder($db_params);
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}
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// --------------------------------------------------------------------------
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/**
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* Return exiting connections
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*
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* @return array
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*/
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public static function get_connections()
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{
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return array_keys(self::$instance);
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}
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// --------------------------------------------------------------------------
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/**
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* Remove a database connection
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*
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* @param string $key
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* @return void
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*/
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public static function remove_db($key)
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{
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unset(self::$instance[$key]);
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}
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}
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// End of dbreg.php
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