Question

I have created models in rails using

rails g model User uid:integer name:string

and

rails g model Post message:string user:references

The above lines generated models like following

class User < ActiveRecord::Base
  attr_accessible :name, :uid
end

and

class Post < ActiveRecord::Base
  belongs_to :user
  attr_accessible :message
end

Now do i need to explicitly add a has_many :posts in the User model ?

also how can i make user_id in Post model NOT NULL ?

Thanks.

Answer 1

Now do i need to explicitly add a has_many :posts in the User model ?

Yes if you want to find posts of user User.firs.posts

also how can i make user_id in Post model NOT NULL ?

Add migration

change_column :posts, :user, :integer, :null => false