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

require 'differ'

class ModerationsController < ApplicationController
  before_filter :authenticate_user!
  before_action :set_event, only: [:show, :edit, :update, :destroy]
  before_filter :set_mailer_host, only: [:update, :destroy]

  def index
    @events = Event.where moderated: 0
  end

  # PATCH/PUT /moderations/1
  # PATCH/PUT /moderations/1.json
  def update
    # This is a special case, required to handle the region attribute with same foreign key name
    @event.region = Region.find(params[:event][:region])

    if params[:visu]
      @event.attributes = event_params
      render action: 'edit'
      return
    end

    respond_to do |format|
      if @event.update(event_params)
        # Send an update mail to its author
        ModerationMailer.update(@event, current_user).deliver

        format.html { redirect_to moderations_path, notice: 'Event was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @event.errors, status: :unprocessable_entity }
      end
    end
  end

  private
    def permitted_params
      params.require(:event).permit(:title, :start_time, :end_time, :description, :city, :locality, :url, :contact, :submitter, :tags)
    end

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

    # Never trust parameters from the scary internet, only allow the white list through.
    def event_params
      params.require(:event)
        .permit :title, :start_time, :end_time, :description, :city, :locality, :url, :contact, :submitter, :tags
    end

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