imoss

class Gatekeeper
  def self.has_access?(user: user, context: context)
    perms_1 = self.find_by_sql("
      select p.*
      from user_permissions p
      where p.context_id = #{context}
        and p.user_id = #{user.id}
      union
      select p.*
      from group_permissions g

imoss

class Gatekeeper
  attr_accessor :user, :contexts

  def initialize(user, contexts)
    self.user = user
    self.contexts = Array.wrap(contexts)
  end

  def self.access?(user: user, contexts: contexts)
    new(user, contexts).access?

imoss

class Array
  def each
    for i in 0...length
      yield(self.[](i))
    end
    self
  end
  
  def map
    ar = []