67 lines
1.6 KiB
PHP
67 lines
1.6 KiB
PHP
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<?php defined('SYSPATH') OR die('No direct script access.');
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/**
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* Database reader for the kohana config system
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*
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* @package Kohana/Database
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* @category Configuration
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* @author Kohana Team
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* @copyright (c) 2012 Kohana Team
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* @license http://kohanaframework.org/license
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*/
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class Kohana_Config_Database_Reader implements Kohana_Config_Reader
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{
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protected $_db_instance;
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protected $_table_name = 'config';
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/**
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* Constructs the database reader object
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*
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* @param array Configuration for the reader
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*/
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public function __construct(array $config = NULL)
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{
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if (isset($config['instance']))
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{
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$this->_db_instance = $config['instance'];
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}
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elseif ($this->_db_instance === NULL)
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{
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$this->_db_instance = Database::$default;
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}
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if (isset($config['table_name']))
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{
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$this->_table_name = $config['table_name'];
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}
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}
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/**
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* Tries to load the specificed configuration group
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*
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* Returns FALSE if group does not exist or an array if it does
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*
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* @param string $group Configuration group
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* @return boolean|array
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*/
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public function load($group)
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{
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/**
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* Prevents the catch-22 scenario where the database config reader attempts to load the
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* database connections details from the database.
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*
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* @link http://dev.kohanaframework.org/issues/4316
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*/
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if ($group === 'database')
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return FALSE;
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$query = DB::select('config_key', 'config_value')
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->from($this->_table_name)
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->where('group_name', '=', $group)
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->execute($this->_db_instance);
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return count($query) ? array_map('unserialize', $query->as_array('config_key', 'config_value')) : FALSE;
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}
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}
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