Feature toggle library for the Lithium framework.

Feature toggling lets you turn features on and off by changing a configuration setting. This library allows simple Boolean feature toggles, feature toggles based on the result of a function, and feature toggles based on the current environment.

Installation

Checkout the code to your library directory:

cd libraries
git clone https://github.com/michaeltwofish/li3_features.git

Include the library in in your /app/config/bootstrap/libraries.php

Libraries::add('li3_features');

Add feature detectors to your app in config/bootstrap/features.php (or somewhere that makes sense for you).

Usage

Named features are added using Features::add() along with their detector, which decides whether the feature should be active for the current request. Features can be turned on or off with a simple Boolean detector, calculated in some way with a closure detector, or be sensitive to the current environment by passing an array of environment and detector pairs.

Basic usage with Boolean detector

	// `config/bootstrap/features.php`
	Features::add('new_ui', true);

	// `controllers/Main.php`
	if (Features::check('new_ui')) {
		$template = 'add_new_ui';
	} else {
		$template = 'add';
	}
	$this->render(compact('template'));

Closure detector

	// `config/bootstrap/features.php`
	Features::add('new_ui', function() {
			// Logic here to decide if the feature should be enabled.
			// Return true to enable and false to disable.
		}
	);

Environment-specific detectors

	// `config/bootstrap/features.php`
	Features::add('new_ui', array(
		'production' => false,
		'development' => true,
		'staging' => function() {
			// Logic here to decide if the feature should be enabled.
		}
	));

Credits

Michael C. Harris

The original author of this library.

Github: michaeltwofish

Website: Twofish Creative