Rails 3 Limiting Included Objects

Question

For example I have a blog object, and that blog has many posts. I want to do eager loading of say the first blog object and include say the first 10 posts of it. Currently I

Answer 1

You need to limit the number of posts in your blog model like this:

class Blog < ActiveRecord::Base
    has_many :included_posts, :class_name => 'Post', :limit => 10
    has_many :posts
end

So then you can do:

$ Blog.first.included_posts.count
=> 10
$ Blog.first.posts.count 
=> 999