What I’d like to be able to do is obtain the posts for a given Group. But I only want to be able to obtain the last post (most recent) for each user in that group.
For example, I want to be able to do something like: Group.find(6).recent_posts
and have it return an array that would equal
posts = [ ] Group.find(6).users.each do |user| posts << user.posts.last end
Posted are the models in my app
class Group < ActiveRecord::Base attr_accessible :name, :share_link has_many :memberships has_many :users, :through => :memberships validates :name, presence: :true end class Membership < ActiveRecord::Base belongs_to :user belongs_to :group attr_accessible :group_id, :user_id, :admin end class Post < ActiveRecord::Base belongs_to :user attr_accessible :title, :url, :user_id validates :title, presence: :true end class User < ActiveRecord::Base attr_accessible :name, :provider, :uid has_many :memberships has_many :groups, :through => :memberships has_many :posts end