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<?php |
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/** |
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* This class is involve in connection to the database. |
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* |
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* @author Raimi Ademola <[email protected]> |
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* @copyright: 2016 Andela |
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*/ |
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namespace Demo; |
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use Dotenv\Dotenv; |
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use PDO; |
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class DataBaseConnection extends PDO |
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{ |
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private $servername; |
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private $username; |
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private $password; |
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private $driver; |
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private $dbname; |
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/** |
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* This is a constructor; a default method that will be called automatically during class instantiation. |
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*/ |
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public function __construct() |
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{ |
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$this->loadEnv(); |
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$this->servername = getenv('DB_HOST'); |
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$this->username = getenv('DB_USERNAME'); |
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$this->password = getenv('DB_PASSWORD'); |
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$this->driver = getenv('DB_DRIVER'); |
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$this->dbname = getenv('DB_NAME'); |
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$options = [ |
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PDO::ATTR_PERSISTENT => true, |
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, |
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]; |
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parent::__construct($this->getDataBaseDriver(), $this->username, $this->password, $options); |
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} |
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/** |
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* This method determines the driver to be used for appropriate database server. |
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* |
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* |
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* @return string dsn |
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*/ |
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public function getDataBaseDriver() |
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{ |
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if ($this->driver === 'mysql') { |
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$dns = 'mysql:host='.$this->servername.';dbname='.$this->dbname; |
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return $dns; |
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} elseif ($this->driver === 'sqlite') { |
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$dns = 'sqlite:host='.$this->servername.';dbname='.$this->dbname; |
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return $dns; |
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} elseif ($this->driver === 'pgsqlsql') { |
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$dns = 'pgsqlsql:host='.$this->servername.';dbname='.$this->dbname; |
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return $dns; |
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} |
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} |
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/** |
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* Load Dotenv to grant getenv() access to environment variables in .env file. |
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*/ |
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private function loadEnv() |
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{ |
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$dotenv = new Dotenv(__DIR__.'/../../'); |
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$dotenv->load(); |
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} |
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} |
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andela-araimi /
potato-orm
