refactor in preparation to handle multiple database connections with doctrine

Author: mladoux

CHANGELOG.md

@@ -4,3 +4,4 @@
     * Implement logger.
     * Add Twig template system.
     * Session management.
+    * DBAL.

README.md

@@ -11,6 +11,7 @@ Slim 4 template repository to base my Slim 4 applications on.
 * Session management via [Symfony's HttpFoundation](https://symfony.com/doc/current/components/http_foundation.html).
 * PSR-7 provided via [Tobias Nyholm](https://github.com/Nyholm/psr7).
 * Dependency injection via [PHP-DI](https://php-di.org/).
+* DBAL via [Doctrine](https://www.doctrine-project.org/projects/dbal.html).
 
 ## Thanks
 

composer.json

@@ -10,6 +10,7 @@
         }
     ],
     "require": {
+        "doctrine/dbal": "^2.10",
         "monolog/monolog": "^2.1",
         "nyholm/psr7": "^1.3",
         "nyholm/psr7-server": "^1.0",