Not loading expected results on :index action

[kinsbrunner]

Hi guys,

I am facing a very weird problem as, for some reason, I am getting more results than expected ones. There are Schools. Each School has many Communications, each of them is related to a Family through a Recipient.

I am expecting to get ONLY those Communications where current_user's Family is a Recipient but, for some reason, I am getting ALL the Communications from that School.

It is really annoying that the written tests are all working as expected and that, through Console, I am simulating the rules ad they are also working.

Suggestions and solutions are very welcome!
Regards.
Alejandro.

Communications controller:

    before_action :authenticate_user!
    load_and_authorize_resource :school
    load_and_authorize_resource :communication, through: :school

    # GET /schools/:school_id/communications
    def index
      json_response_ser(@school.communications.order(:created_at), CommunicationFullSerializer)
    end

  def json_response_ser(object, serializer, status = :ok)
    # helper that responds with JSON and an HTTP status code (200 by default)
    render json: object, status: status, each_serializer: serializer
  end

Some of the abilities definition:

    # School: can only read the School where is assigned to
    can :read, School do |s|
      s.families.include?(user.origin.try(:family))
    end

    # Communication: can read all the Communications where the Family was recipient
    can :read, Communication do |c|
      user.origin.try(:family).communications.include?(c)
    end