osem-fcy/app/controllers/admin/contacts_controller.rb

module Admin
  class ContactsController < ApplicationController
    load_and_authorize_resource :conference, find_by: :short_title
    load_and_authorize_resource through: :conference, singleton: true

    # GET /:conference/contact
    def show; end

    # GET /:conference/contact/edit
    def edit; end

    # PATCH/PUT /:conference/contact
    def update
      if @contact.update(contact_params)
        redirect_to admin_conference_contact_path, notice: 'Contact details were successfully updated.'
      else
        render :edit
      end
    end

    # DELETE /:conference/contact
    def destroy
      @contact.destroy
      redirect_to admin_conference_contacts_url, notice: 'Contact details were successfully destroyed.'
    end

    private
    # Only allow a trusted parameter "white list" through.
    def contact_params
      # params.require(:contact).permit(:social_tag, :email, :facebook, :googleplus, :twitter, :instagram, :public)
      params[:contact]
    end
  end
end