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141 lines
3.9 KiB
PHP
141 lines
3.9 KiB
PHP
<?php namespace CodeIgniter\Database;
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014-2018 British Columbia Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author CodeIgniter Dev Team
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* @copyright 2014-2018 British Columbia Institute of Technology (https://bcit.ca/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 3.0.0
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* @filesource
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*/
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/**
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* Database Connection Factory
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*
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* Creates and returns an instance of the appropriate DatabaseConnection
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*
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* @package CodeIgniter\Database
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*/
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class Database
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{
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/**
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* Maintains an array of the instances of all connections
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* that have been created. Helps to keep track of all open
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* connections for performance monitoring, logging, etc.
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*
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* @var array
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*/
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protected $connections = [];
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//--------------------------------------------------------------------
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/**
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* Parses the connection binds and returns an instance of
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* the driver ready to go.
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*
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* @param array $params
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* @param string $alias
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*
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* @return mixed
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* @internal param bool $useBuilder
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*
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*/
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public function load(array $params = [], string $alias)
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{
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// No DB specified? Beat them senseless...
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if (empty($params['DBDriver']))
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{
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throw new \InvalidArgumentException('You have not selected a database type to connect to.');
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}
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$className = strpos($params['DBDriver'], '\\') === false
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? '\CodeIgniter\Database\\' . $params['DBDriver'] . '\\Connection'
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: $params['DBDriver'] . '\\Connection';
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$class = new $className($params);
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// Store the connection
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$this->connections[$alias] = $class;
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return $this->connections[$alias];
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}
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//--------------------------------------------------------------------
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/**
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* Creates a new Forge instance for the current database type.
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*
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* @param ConnectionInterface|BaseConnection $db
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*
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* @return mixed
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*/
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public function loadForge(ConnectionInterface $db)
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{
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$className = strpos($db->DBDriver, '\\') === false ? '\CodeIgniter\Database\\' . $db->DBDriver . '\\Forge' : $db->DBDriver . '\\Connection';
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// Make sure a connection exists
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if ( ! $db->connID)
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{
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$db->initialize();
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}
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$class = new $className($db);
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return $class;
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}
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//--------------------------------------------------------------------
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/**
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* Loads the Database Utilities class.
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*
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* @param ConnectionInterface|BaseConnection $db
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*
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* @return mixed
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*/
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public function loadUtils(ConnectionInterface $db)
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{
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$className = strpos($db->DBDriver, '\\') === false ? '\CodeIgniter\Database\\' . $db->DBDriver . '\\Utils' : $db->DBDriver . '\\Utils';
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// Make sure a connection exists
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if ( ! $db->connID)
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{
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$db->initialize();
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}
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$class = new $className($db);
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return $class;
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}
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//--------------------------------------------------------------------
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}
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