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Contents
require_dependency "renalware/pathology"
module Renalware
module Pathology
class ObservationsForCodesPresenter
# Example usage
# ObservationsForCodesPresenter.new(patient: patient, codes: %w(HBA FER PHT))
def initialize(patient:, codes:)
@patient = Pathology.cast_patient(patient)
@codes = Array(codes).map(&:upcase)
end
# Returns an array of observations reformatted to be easy to consume.
def observations
codes.map do |code|
observation = observation_for(code) || NullObject.instance
OpenStruct.new(code: code,
description: description_for(code).name,
result: observation.result,
observed_at: observation.observed_at)
end
end
private
attr_reader :patient, :codes
def descriptions
@descriptions ||= Renalware::Pathology::ObservationDescription.where(code: codes).to_a
end
def matching_observations
@matching_observations ||= patient.current_observations.where(description_code: codes).to_a
end
def description_for(code)
descriptions.find{ |desc| desc.code.upcase == code } || NullObject.instance
end
def observation_for(code)
matching_observations.find{ |observation| observation.description_code.upcase == code }
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems