JuarezLustosa

module Abilities
  def self.ability_for(user)
    if user.admin?
      AdminAbility.new(user)
    else user
      MemberAbility.new(user)
    else
      GuestAbility.new
    end
  end

JuarezLustosa

class Payment < ActiveRecord::Base
  def self.filtered(restrictions)
    PaymentFilter.new(self.scoped).restrict(restrictions)
  end

  def self.year(year)
    where(:year => year)
  end

  def self.person_id(person_id)