I'm looking at the Kissmetrics (analytics app) JS API docs, and they have an "identify" method that lets you tell Kissmetrics about a user. Here's what their docs say:
We recommend you call identify in two scenarios:
When a user successfully signs up When a user successfully logs in, either through cookies or through a login page
What would be the best way to achieve that? How can I detect when a user has just signed up or signed in?
Lets divide the problem in two: register and log in.
You can detect when a new user has registered in you app just adding a after_create hook in you User model. Something like
class User < ActiveRecord::Base
after_create :register_hook
def register_hook
# your code here
end
end
Detecting when the user logs in is a little bit dirtier. Devise modify the user.current_sign_in_at attribute of the user when he/she logs in, so you could add a before_save hook in the user model and check if the current_sign_in_at attribute has changed. It should be something like:
class User < ActiveRecord::Base
before_save :login_hook, :if => current_sign_in_at_changed?
def login_hook
# your code here
end
end
Once you have the right callbacks for detecting sign in/sign up, you can just create a cookie with the info and read it from the javascript or write a helper method for the User model and write something like this in your layout:
<% if current_user.just_signed_in %>
<script type="text/javascript">
// Your sign in stats code here
</script>
<% end %>
<% if current_user.just_signed_up %>
<script type="text/javascript">
// Your sign up stats code here
</script>
<% end %>
Following this way, the complete model would be:
class User < ActiveRecord::Base
after_create :register_hook
before_save :login_hook, :if => current_sign_in_at_changed?
attr_accessor :just_singed_up, :just_signed_in
def register_hook
@just_signed_up = true
end
def login_hook
@just_signed_in = true
end
end