gistfile1.rb

register_participant 'build_adherence_predicates' do |workitem|
  # We do this separately, since we only care about 
  # its presence, and not its value
  p = Patient.find workitem['patient_id']

  [:bp, :pulse, :symptom, :weight].each do |parameter|
    if (p.send("#{parameter}_readings").morning.during(Time.last(7.days)) == 0)
      workitem["#{parameter}_today"] = 'no'
    else
      workitem["#{parameter}_today"] = 'yes'
    end
  end

  if (p.ecg_readings.morning.during(Time.last(7.days)) == 0)
    workitem['ecg_in_last_7_days'] = 'no'
  else
    workitem['ecg_in_last_7_days'] = 'yes'
  end
      
end