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Contents
require_dependency "renalware/medications"
module Renalware
module Medications
class RevisePrescription
attr_reader :prescription, :params
NEW_PRESCRIPTION_ATTRS = %w(dose_amount dose_unit frequency).freeze
def initialize(prescription)
@prescription = prescription
end
def call(params)
@prescription.assign_attributes(params)
return false unless @prescription.valid?
if new_prescription_required?
@prescription.reload
TerminateExistingAndCreateNewPescription.new(@prescription, params).call
else
@prescription.save
end
end
private
def new_prescription_required?
attr_intersection = @prescription.changed_attributes.keys & NEW_PRESCRIPTION_ATTRS
attr_intersection.count > 0
end
end
class TerminateExistingAndCreateNewPescription
def initialize(prescription, params)
@prescription = prescription
@params = params
end
def call
Prescription.transaction do
terminate_existing_prescription
create_new_prescription
end
end
private
def terminate_existing_prescription
return if @prescription.termination.present?
@prescription.terminate(by: @params[:by]).save!
end
def create_new_prescription
new_prescription = Prescription.new(terminated_prescription_attributes)
new_prescription.assign_attributes(@params)
new_prescription.prescribed_on = Date.current
new_prescription.save!
end
def terminated_prescription_attributes
@prescription.attributes.slice(*included_attributes)
end
def included_attributes
%w(
patient_id drug_id
treatable_id
treatable_type
dose_amount
dose_unit
medication_route_id
route_description
frequency
notes
provider
)
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems