Question

I’m using rails 3.1 with Devise for user authentication…

I’m having trouble either getting the associations between two scaffold generated models working or I’m not accessing it correctly.

I have two models: User (Devise), and Post

I’ve added the belongs_to :user tag in the Post model and has_many :posts in the User model.

When I open a rails console, rails c from terminal in the app directory, I thought I should be able to reference the Post model through the user model. Such as User.post.count but I keep getting a NoMethodError: undefined method "post" error.

I’ve been through all the guide.rails.org and back through the railstutorial.org book and I’m definitely missing something somewhere.

Any help would be much appreciated.

Answer 1

Have you added your migrations that adds user_id to the posts table? Without that foreign key, Rails can’t figure out which users are associated with which posts.