Fetching active campaigns by iTunes ID, using Kongo :).

milene.rb

# configure Kongo :)

Kongo::Collection.add_extension(:apps, Module.new do
  def find_by_itunes_id(id)
    find_many(itunes: id, live_notified: true)
  end
self; end)

Apps = Kongo::Collection.new(:apps)

Kongo::Collection.add_extension(:campaigns, Module.new do
  def find_by_app(app)
    find_many('$or': [{app_id: app._id.to_s}, {promote_in: app._id.to_s}])
  end
  def find_by_itunes_id(id)
    Apps.find_by_itunes_id(id).to_enum.map do |a|
      find_by_app(a).to_a
    end.flatten
  end
self; end)

Kongo::Model.add_extension(:campaigns, Module.new do
  def switched_on?
    self.switches && self.switches.map {|k,v| v.to_i }.reduce(&:*) == 1
  end
  def expired?
    !((!self.date_min || self.date_min < Time.now.to_i) &&
      (!self.date_max || self.date_max > Time.now.to_i))
  end
  def active?
    switched_on? && !expired?
  end
  def advertiser?
    self.market_type == 'advertiser'
  end
  def publisher?
    self.market_type == 'publisher'
  end
self; end)

Campaigns = Kongo::Collection.new(:campaigns)


# use it

# for example:
# Campaigns.find_by_itunes_id('...').select(&:advertiser?).select(&:active?)