user_session.rb

class UserSession < Authlogic::Session::Base
  def remember_me_for
		3.months
	end
end

user_sessions_controller.rb

class UserSessionsController < ApplicationController
  def new
		@user_session = UserSession.new
	end

	def create
		@user_session = UserSession.new(params[:user_session])
		if @user_session.save
			flash[:success] = "You have been successfully logged in!"
			redirect_to profiles_url
		else
			render :action => "new"
		end
	end

	def destroy
		@user_session = UserSession.find
		if @user_session.destroy
			flash[:notice] = "You have been signed out successfully. Come back soon :)"
			redirect_to profiles_url
		else
			flash[:error] = "Oops, something went wrong! You weren't signed out properly, please try again."
			redirect_to profiles_url
		end
	end
end