Kercode/tutti_gruppi

class AuthenticationsController < ApplicationController
  before_action :authenticate_authentication!

  def index; end

  def show; end

  def destroy
    @authentication = Authentication.find(params[:id])
    auth_order = Order.where(authentication_id: params[:id])
    auth_order.update authentication_id: 2
    @authentication.destroy
    redirect_to request.referrer || root_path
  end

  def edit
    @authentication = Authentication.find(params[:id])
    auth_gpmt = GroupmentAuthentication.find_by_authentication_id(@authentication.id)
    auth_gpmt ? @groupment = Groupment.find(auth_gpmt.groupment_id) : @groupment = Groupment.find(1) 
  end

  def update
    auth_gpmt = GroupmentAuthentication.find_by_authentication_id(params[:id])
    if auth_gpmt.update groupment_id: params[:Groupment][:groupment_id]
      flash[:notice] = "Vous appartenez désormais au groupement #{auth_gpmt.groupment.name}."
      redirect_to request.referrer || root_path
    else
      flash[:notice] = 'Une erreur est survenue.'
      redirect_to root_path
    end
  end

  # meta programming, update the authentication role
  [Admin, Manager, Member].each do |role|
    define_method("up#{role}") {
      remove_role(params[:id])
      user = role.create
      auth = Authentication.find(params[:id])
      auth.userable_type
      auth.update userable_id: user.id, userable_type: role.to_s
      redirect_to request.referrer
    }
  end
end