Facebook and Standard Codeigniter Login

Facebook and Standard Codeigniter Login - Printable Version

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Facebook and Standard Codeigniter Login - El Forum - 04-24-2012

[eluser]Keylocker[/eluser]
Here's the deal:
I have my CI 2 application that has its user table with pretty much standard data:

Code:
user_id

fb_uid (Facebook User ID)

fb_username (Facebook user name i.e. http://facebook.com/username)

first_name

last_name

gender

email

password

As you can see, a user can login with the standard login form (email/password) or connecting with Facebook.

My problem is that,
1) If a user has got a standard account on the site and the next time he logins with Facebook, I need to complete his information adding

Code:
fb_uid

and

Code:
fb_username

to his row in the user table.

2) If a user arrives to the site for the first time and logins with Facebook, I need to add his Facebook information to the table and take him to a page that allows him to set his password.

How could I do that avoiding duplicates? I mean.. preventing a user to have two table rows (one with user_id, first_name, email, etc) and another row just with Facebook information?

I know this is really poorly explained so please don't refrain to ask questions.
Thanks.
Mike

Facebook and Standard Codeigniter Login - El Forum - 04-24-2012

[eluser]boltsabre[/eluser]
http://developers.facebook.com/docs/user_registration/flows/

Facebook and Standard Codeigniter Login - El Forum - 04-24-2012

[eluser]Keylocker[/eluser]
Awesome. I'll have a look!

Facebook and Standard Codeigniter Login - El Forum - 04-24-2012

[eluser]boltsabre[/eluser]
no worries!

If you're interested there is also a CI library/module called a3m (marshmallow for CI2) which helps to integrate FB, Twitter, Google, Yahoo and OpenID login/registration. It takes a bit of hacking and research to suit your needs, but I got mine up and going in about 3 weeks (that's pt though, so perhaps 4 - 5 full 8hr days it took me).

Facebook and Standard Codeigniter Login - El Forum - 04-24-2012

[eluser]Demilium[/eluser]
What I did, was request the users email as a permission when they're logging in with the Facebook SDK. Then I checked to see if the user had already registered by checking the Facebook e-mail against the rows in the database -- and if so update the row with the fb_uid, etc. Also, I stored the access_token (but an extended one, since the 'offline_access' permission has been depreciated).

Hope this helps.

Facebook and Standard Codeigniter Login - El Forum - 04-25-2012

[eluser]Keylocker[/eluser]
Yes that might work but only if your email is the same that you used to register to Facebook

Facebook and Standard Codeigniter Login - El Forum - 04-25-2012

[eluser]Demilium[/eluser]
It's the only feasible way I can see to be honest.