Episode 236, when register with twitter or facebook about railscasts-episodes HOT 5 OPEN

This is because the encrypted_password field is empty. Seeding the password with a random string when people create users via Twitter/Facebook/etc. will avoid this problem.

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If you do that, won't it stop them from being able to add a password later?

Ideally, it would return saying that email/password is incorrect, right?

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Yes, it would, but if they are logging in with Facebook, they don't need a password on your site (right?).

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It's true, I just happen to let the user be able to login multiple ways. Idea is that authentication != identification, so why not let the user be able to login through multiple means?

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In that case, I would require users to set a password on your site when they login with Facebook for the first time.

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