Devise Who's Here

Devise extension for logging current active users using only the fast Rails cache. This gem is for if you don't want long-term storage of this information and don't want to write to your database all the time.

Install

# Gemfile

gem 'devise_whos_here'

Usage

# app/models/user.rb

devise :database_authenticatable, :confirmable, :whos_here

This will keep track of your logged in users with a variable in the Rails cache. Note all below times are returned as Time objects, not strings.

User.last_active_since(30.minutes.ago) # returns an array of User objects

user = User.first

user.last_here_at # returns last known request time

Whenever you want to clear the cache simply run

User.clear_whos_here!

Credits

Created by Weston Ganger - @westonganger