class SessionsController

def create
  if authenticate(resource_name)
    set_flash_message :success, :signed_in
    redirect_back_or_to home_or_root_path
  else
    unauthenticated!
    build_resource
    render :new
  end
end

def destroy
  set_flash_message :success, :signed_out if signed_in?(resource_name)
  sign_out(resource_name)
  redirect_to root_path
end

def new
  unauthenticated! if params[:unauthenticated]
  unconfirmed!     if params[:unconfirmed]
  build_resource
end

def unauthenticated!
  set_now_flash_message :failure, :unauthenticated
end

def unconfirmed!
  set_now_flash_message :failure, :unconfirmed
end