refactoring for dependency injection and testability.

laravel/database/connector/callback.php

@@ -0,0 +1,18 @@
+<?php namespace Laravel\DB\Connector;
+
+use Laravel\DB\Connector;
+
+class Callback extends Connector {
+
+	/**
+	 * Establish a PDO database connection.
+	 *
+	 * @param  array  $config
+	 * @return PDO
+	 */
+	public function connect($config)
+	{
+		return call_user_func($config['connector']);
+	}
+
+}

laravel/database/connector/factory.php

@@ -0,0 +1,30 @@
+<?php namespace Laravel\DB\Connector;
+
+class Factory {
+
+	/**
+	 * Create a new database connector instance for a given driver.
+	 *
+	 * @param  array      $config
+	 * @return Connector
+	 */
+	public static function make($config)
+	{
+		if (isset($config['connector'])) return new Callback;
+
+		switch ($config['driver'])
+		{
+			case 'sqlite':
+				return new SQLite;
+
+			case 'mysql':
+				return new MySQL;
+
+			case 'pgsql':
+				return new Postgres;
+		}
+
+		throw new \Exception("Database configuration is invalid. Please verify your configuration.");
+	}
+
+}

laravel/database/connector/mysql.php

@@ -0,0 +1,37 @@
+<?php namespace Laravel\DB\Connector;
+
+use Laravel\DB\Connector;
+
+class MySQL extends Connector {
+
+	/**
+	 * Establish a PDO database connection.
+	 *
+	 * @param  array  $config
+	 * @return PDO
+	 */
+	public function connect($config)
+	{
+		$dsn = $config['driver'].':host='.$config['host'].';dbname='.$config['database'];
+
+		if (isset($config['port']))
+		{
+			$dsn .= ';port='.$config['port'];
+		}
+
+		if (isset($config['socket']))
+		{
+			$dsn .= ';unix_socket='.$config['socket'];
+		}
+
+		$connection = new \PDO($dsn, $config['username'], $config['password'], $this->options);
+
+		if (isset($config['charset']))
+		{
+			$connection->prepare("SET NAMES '".$config['charset']."'")->execute();
+		}
+
+		return $connection;
+	}
+
+}

laravel/database/connector/postgres.php

@@ -0,0 +1,32 @@
+<?php namespace Laravel\DB\Connector;
+
+use Laravel\DB\Connector;
+
+class Postgres extends Connector {
+
+	/**
+	 * Establish a PDO database connection.
+	 *
+	 * @param  array  $config
+	 * @return PDO
+	 */
+	public function connect($config)
+	{
+		$dsn = $config['driver'].':host='.$config['host'].';dbname='.$config['database'];
+
+		if (isset($config['port']))
+		{
+			$dsn .= ';port='.$config['port'];
+		}
+
+		$connection = new \PDO($dsn, $config['username'], $config['password'], $this->options);
+
+		if (isset($config['charset']))
+		{
+			$connection->prepare("SET NAMES '".$config['charset']."'")->execute();
+		}
+
+		return $connection;
+	}
+
+}

laravel/database/connector/sqlite.php

@@ -0,0 +1,31 @@
+<?php namespace Laravel\DB\Connector;
+
+use Laravel\DB\Connector;
+
+class SQLite extends Connector {
+
+	/**
+	 * Establish a PDO database connection.
+	 *
+	 * @param  array  $config
+	 * @return PDO
+	 */
+	public function connect($config)
+	{
+		if ($config['database'] == ':memory:')
+		{
+			return new \PDO('sqlite::memory:', null, null, $this->options);
+		}
+		elseif (file_exists($path = DATABASE_PATH.$config['database'].'.sqlite'))
+		{
+			return new \PDO('sqlite:'.$path, null, null, $this->options);
+		}
+		elseif (file_exists($config['database']))
+		{
+			return new \PDO('sqlite:'.$config['database'], null, null, $this->options);
+		}
+
+		throw new \Exception("SQLite database [".$config['database']."] could not be found.");
+	}
+
+}