Question

I’m trying to do the following in rails 3:

@groups_active = Group.active_groups(current_user)

active_groups is a scope. This query works fine. I then want to do the following:

if @groups_active.count > 9
   @groups_active[0..10]
end

Meaning if there are more than 10 items in the @groups_active, take just the TOP 10, which thanks to the scope ordering are the most active.

Suggestions? Thanks

Answer 1

I’m not sure what your problem is. You can limit the number of results from a query with Model.your_scope.limit(10), and if it is a query that doesn’t work with a SQL LIMIT then you can use Model.your_scope.first(10). That’s an Array#first, which accepts a fixnum argument to be used as expected…