agenda-libre-ruby/app/controllers/notes_controller.rb

class NotesController < ApplicationController
  before_action :set_event, only: [:new, :create]
  before_filter :set_mailer_host, only: [:create]

  # GET /moderations/id/new
  def new
    @note = @moderation.notes.new
  end

  def create
    @note = @moderation.notes.new(note_params)
    @note.author = current_user

    respond_to do |format|
      if @note.save
        if params[:envoiParMail] == 'oui'
          # Send an update mail to its author
          NoteMailer.create(@note).deliver
          @note.contents = t '.sendByMailWrap', contents: @note.contents
          @note.save
        end

        format.html { redirect_to moderations_url, notice: t('.ok') }
        format.json { render action: 'show', status: :created, location: @event }
      else
        format.html { render action: 'new' }
        format.json { render json: @note.errors, status: :unprocessable_entity }
      end
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_event
      @event = Event.find params[:moderation_id]
      @moderation = @event
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def note_params
      params.require(:note).permit :contents
    end

    # Useful to manage absolute url in mails
    def set_mailer_host
      ActionMailer::Base.default_url_options[:host] = request.host_with_port
    end
end