[eluser]ericbae[/eluser]
Hi @tanag,
If you look through the code, it isn't too difficult to figure out what is going on. I'll try to briefly summarize here.
1. A new column is added to "user_profiles" table called "facebook_id", which will store the facebook ID of the user, if he/she connects using Facebook OpenGraph API
2. Assuming you have your Facebook application ID registered, you can put the Facebook connect button code. In this code, you need to specify a controller & method to which the user will be redirected to after clicking the Facebook connect button.
3. The controller & method in XTA project is "auth_other" and "login_fb". I think you can safely copy this and put it into your project. You may need to slightly modify the method to make sure it works. Basically, it's checking whether user's facebook id is already in the DB or not. If it exists, we "simulate" tank_auth log-in process, otherwise, we direct users to a "fill in your detail" page.
I hope that helps. Give it a go and then ask questions if you run into problems.
Eric
