Collectively
A simple gem for adding methods to ActiveRecord relations and collections.
Great for quickly adding statistical methods to subsets of results from ActiveRecord.
Support for Rails 3.2+ and 4.0+
Usage
Generate a collection:
rails g collectively:collection postsAdd some code to app/collections/posts_collection.rb:
class PostsCollection < Collectively::Base
def page_views_by_day
collection.inject({}){|memo, post|
post.page_views.each do |page_view|
date = page_view.created_at.to_date.to_s
memo[date] ||= 0
memo[date] += 1
end
memo
}
end
endAdd 'acts_collectively' to app/models/post.rb:
class Post < ActiveRecord::Base
acts_collectively
# optionally override the collection name:
# acts_collectively as: :blogs #=> BlogsCollection
has_many :page_views
endAccess your collection methods:
# Page views by day this month
Post.where(created_at: (Time.beginning_of_month..Time.now)).collection.page_views_by_day
# Page views since first post
Post.all.collection.page_views_by_dayAuthors
- Cory ODaniel