Rails 3 find all associated records has_many :through
- by Sergey
I would like to list all posts that are connected with some specific category.
I have:
class Post < ActiveRecord::Base
has_many :category_posts
has_many :categories, :through => :category_posts
end
class Category < ActiveRecord::Base
has_many :category_posts
has_many :posts, :through => :category_posts
end
class CategoryPost < ActiveRecord::Base
belongs_to :category
belongs_to :post
end
And I wanna do something like this
Post.where(["category.id = ?", params[:category_id]])
It indeed is very simple task, but I don't know what I should be looking for (keywords).
It's the same problem like this, but in rails.
