chillerlan\Database\Drivers\PDO\PDOSQLiteDriver

Complexity

Total Complexity

8

Size/Duplication

Total Lines	61
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	getDSN()	0	3	1
A	getServerInfo()	0	3	1
B	connect()	0	24	6

<?php
/**
 * @filesource   PDOSQLiteDriver.php
 * @created      05.01.2016
 * @package      chillerlan\Database\Drivers\PDO
 * @author       Smiley <smiley@chillerlan.net>
 * @copyright    2016 Smiley
 * @license      MIT
 */

namespace chillerlan\Database\Drivers\PDO;

use chillerlan\Database\DBException;
use chillerlan\Database\Drivers\DBDriverInterface;
use PDO;

/**
 * Class PDOSQLiteDriver
 */
class PDOSQLiteDriver extends PDODriverAbstract{

	/**
	 * The PDO drivername which is being used in the DSN
	 *
	 * @var string
	 */
	protected $drivername = 'sqlite';

	/**
	 * Returns a DSN string using the given options
	 * @see http://php.net/manual/ref.pdo-sqlite.connection.php
	 *
	 * @return string DSN
	 */
	protected function getDSN():string {
		return $this->drivername.':'.$this->options->database;
	}

	/**
	 * Returns info about the database server
	 *
	 * @return string database's serverinfo string
	 */
	public function getServerInfo():string {
		return $this->drivername.' (PDO::ATTR_SERVER_INFO not available)';
	}

	/**
	 * Establishes a database connection and returns the connection object
	 *
	 * @return \chillerlan\Database\Drivers\DBDriverInterface
	 * @throws \chillerlan\Database\DBException
	 */
	public function connect():DBDriverInterface{

		if($this->db instanceof PDO){
			return $this;
		}

		try{

			if($this->options->database !== ':memory:' && !is_file($this->options->database)){
				trigger_error('file not found');
			}

			if($this->options->database === ':memory:'){
				$this->pdo_options += [PDO::ATTR_PERSISTENT => true];
			}

			$this->db = new PDO($this->getDSN(), null, null, $this->pdo_options);

			return $this;
		}
		catch(\Exception $e){
			throw new DBException('db error: [PDOSQLiteDriver]: '.$e->getMessage());
		}
	}


}