SimpleController

Use the Ruby on Rails Controller pattern outside of the Rails request stack.

Installation

Add this line to your application's Gemfile:

gem 'simple_controller'

And then execute:

$ bundle

Or install it yourself as:

$ gem install simple_controller

Usage

class UserController < SimpleController::Base
    before_action do
        @user = User.find(params[:user_id])
    end

    def touch
        @user.touch
        @user
    end
end

UserController.call(:touch, user_id: 1) # => returns User object
UserController.new.call(:touch, user_id: 1) # => same as above

It works like a Rails Controller, but has only has the following features:

• Callbacks
• params
• action_name

Router

A router is provided to decouple controller classes from identifiers.

class Router < SimpleController::Router
end

# Router.instance is a singleton for ease of use
Router.instance.draw do
  match "threes/multiply"
  match "threes/dividing" => "threes#divide"

  controller :threes do
    match :add
    match subtracting: "subtract"
  end
  # custom syntax
  controller :threes, actions: i[power]

  namespace :some_namespace do
    match :magic
  end

  # no other Rails-like syntax is available
end

Router.call("threes/multiply", number: 6) # calls ThreesController.call(:multiply, number: 6)
Router.instance.call("threes/multiply", number: 6) # same as above

To custom namespace the controller:

Router.instance.parse_controller_name {|controller_name| "#{controller_name}_suffix_controller".classify.constantize }

Router.call("threes/multiply", number: 6) # calls ThreesSuffixController.call(:multiply, number: 6)