Question

I have an empty table called users. I create a new user via:

User.create :fb_id => fb_id

It successfully creates an entry.

Then I query it via:

User.first(:include => :cookies, :conditions => {:cookies => {:opened => false} , :fb_id => fb_id})

returns nil!!

I check the table and the user is there.
So I create a new, duplicate user via:

User.create :fb_id => fb_id

Now there’s exact two row with same fb_id. If I query now just like before:

User.first(:include => :cookies, :conditions => {:cookies => {:opened => false} , :fb_id => fb_id})

it returns the new user now with id 2!

What’s going on? I’ve been trying to debug it for 3-4 hours but can’t figure it out.
Thanks

My Models:

class User < ActiveRecord::Base
    has_many :cookies
    has_many :fortunes, :through => :cookies
end

class Cookie < ActiveRecord::Base
    belongs_to :user
    belongs_to :fortune
end

class Fortune < ActiveRecord::Base
    has_many :cookies
    has_many :users, :through => :cookies
end

Answer 1

I believe that Rails will use a left outer join when using include. However, when joining, the associated row, all values will be null. Therefore, you should use something like:

User.first(:include => :cookies, 
           :conditions => ["cookies.opened <> ? AND fb_id = ?", true, fb_id])