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module HQMF2
# Represents an HQMF population criteria, also supports all the same methods as
# HQMF2::Precondition
class PopulationCriteria
include HQMF2::Utilities
attr_reader :preconditions, :id, :hqmf_id, :title, :type
# Create a new population criteria from the supplied HQMF entry
# @param [Nokogiri::XML::Element] the HQMF entry
def initialize(entry, doc)
@doc = doc
@entry = entry
@hqmf_id = attr_val('./*/cda:id/@extension')
@title = attr_val('./*/cda:code/cda:displayName/@value')
@type = attr_val('./*/cda:code/@code')
@preconditions = @entry.xpath('./*/cda:precondition[not(@nullFlavor)]', HQMF2::Document::NAMESPACES).collect do |precondition|
Precondition.new(precondition, @doc)
end
end
def create_human_readable_id(id)
@id = id
end
# Return true of this precondition represents a conjunction with nested preconditions
# or false of this precondition is a reference to a data criteria
def conjunction?
true
end
# Get the conjunction code, e.g. allTrue, allFalse
# @return [String] conjunction code
def conjunction_code
case @type
when HQMF::PopulationCriteria::IPP, HQMF::PopulationCriteria::DENOM, HQMF::PopulationCriteria::NUMER
HQMF::Precondition::ALL_TRUE
when HQMF::PopulationCriteria::DENEXCEP, HQMF::PopulationCriteria::DENEX
HQMF::Precondition::AT_LEAST_ONE_TRUE
else
raise "Unknown population type [#{@type}]"
end
end
def to_model
mps = preconditions.collect {|p| p.to_model}
HQMF::PopulationCriteria.new(id, hqmf_id, type, mps, title)
end
end
end
Version data entries
30 entries across 30 versions & 2 rubygems