a monumentally dumb rails plugin
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README.md

IfStatement

a colossally stupid Rails feature flipper plugin

IfStatement executes code based on whether it meets some condition. A condition evaluates to false by default. The evaluation can be done in models, controllers, helpers, or anywhere that includes IfStatement::Features.

Why

Because none of the existing ones worked exactly like I wanted. Also, I hadn't written a Rails plugin before.

Usage

in a view

<%= feature :nuts do %>
<ul>
    <li>Almonds</li>
    <li>Walnuts</li>
    <li>Hazelnuts</li>
</ul>
<% end %>

everywhere else

feature :nuke do
    kill_everyone!
end

Installation

In a Rails 3 project, add this to your Gemfile:

gem 'if_statement'

and then run bundle install

Setting what these thing evalute to

Global settings should be in config/features.rb:

IfStatement.setup do
    set(:nuts) { current_person.has_no :allergies }
    set :wipe_db, false
end

Environment specific settings can be in config/features/environment.rb:

# config/features/development.rb
IfStatement.setup do
    set(:nuts) { current_person.has_no :allergies }
    set :wipe_db, true
end

Probably better bets

Copyright (c) 2011 Andrew Lunny, released under the MIT license