Limit in include?

Rails
1

I have a page where i go through all categories, and show the latest 3
games for each one. Right now i include those games when i fetch the
categories in the controller:

@categories = Category.find :all, :include => [:online_games]

Is there a way to limit those games here to the amount that i want? It
seems a bit inefficient to get all games per category here, and limit
those in the view.

2

Peter wrote:

I have a page where i go through all categories, and show the latest 3
games for each one. Right now i include those games when i fetch the
categories in the controller:

@categories = Category.find :all, :include => [:online_games]

Is there a way to limit those games here to the amount that i want? It
seems a bit inefficient to get all games per category here, and limit
those in the view.

Why would not :limit => 3 work?

3

because that would limit the categories to 3, not the games.

On Mar 17, 4:08 pm, James B. [email protected]

4

Peter wrote:

because that would limit the categories to 3, not the games.

On Mar 17, 4:08 pm, James B. [email protected]

more than what you are asking, you can make it the default :limit option
when eager loading associations.

i searched for ‘eager loading associations ruby rails’ in google:
http://api.rubyonrails.com/classes/ActiveRecord/Associations/ClassMethods.html
in this page, search for ‘limit’.

you can add a :limit => n
number to the declaration in the model (has_many … :limit => ) or
whatever as the default limitation for the association you want to
query.

hope it helps out :slight_smile:

shai