Module: Measures::ValueSetHelpers

Defined in:
lib/measure-loader/value_set_helpers.rb

Class Method Summary collapse

Class Method Details

.make_fake_valuesets_from_single_code_references(elms, vs_model_cache) ⇒ Object

Add single code references by finding the codes from the elm and creating new ValueSet objects With a generated GUID as a fake oid.



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# File 'lib/measure-loader/value_set_helpers.rb', line 37

def make_fake_valuesets_from_single_code_references(elms, vs_model_cache)
  value_sets_from_single_code_references = []

  elms.each do |elm|
    # Loops over all single codes and saves them as fake valuesets.
    (elm.dig('library','codes','def') || []).each do |code_reference|
      # look up the referenced code system
      code_system_def = elm['library']['codeSystems']['def'].find { |code_sys| code_sys['name'] == code_reference['codeSystem']['name'] }
      # Generate a unique number as our fake "oid" based on parameters that identify the DRC
      code_hash = "drc-" + Digest::SHA2.hexdigest("#{code_system_def['id']}#{code_system_def['version']}#{code_reference['id']}")

      cache_key = [code_hash, '']
      if vs_model_cache[cache_key].nil?
        concept = CQM::Concept.new(code: code_reference['id'],
                                   code_system_name: code_system_def['name'],
                                   code_system_version: code_system_def['version'],
                                   code_system_oid: code_system_def['id'],
                                   display_name: code_reference['name'])
        vs_model_cache[cache_key] = CQM::ValueSet.new(oid: code_hash,
                                                      display_name: code_reference['name'],
                                                      version: '',
                                                      concepts: [concept])
      end
      value_sets_from_single_code_references << vs_model_cache[cache_key]
    end
  end
  return value_sets_from_single_code_references
end

.modify_value_set_versions(elm) ⇒ Object

Adjusting value set version data. If version is profile, set the version to nil



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# File 'lib/measure-loader/value_set_helpers.rb', line 6

def modify_value_set_versions(elm)
  (elm.dig('library','valueSets','def') || []).each do |value_set|
    # If value set has a version and it starts with 'urn:hl7:profile:' then set to nil
    if value_set['version']&.include?('urn:hl7:profile:')
      value_set['profile'] = URI.decode_www_form_component(value_set['version'].split('urn:hl7:profile:').last)
      value_set['version'] = nil
    # If value has a version and it starts with 'urn:hl7:version:' then strip that and keep the actual version value.
    elsif value_set['version']&.include?('urn:hl7:version:')
      value_set['version'] = URI.decode_www_form_component(value_set['version'].split('urn:hl7:version:').last)
    end
  end
end

.remove_urnoid(json) ⇒ Object

Removes ‘urn:oid:’ from ELM



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# File 'lib/measure-loader/value_set_helpers.rb', line 20

def remove_urnoid(json)
  Utilities.deep_traverse_hash(json) { |hash, k, v| hash[k] = v.gsub('urn:oid:', '') if v.is_a?(String) }
end

.unique_list_of_valuesets_referenced_by_elms(elms) ⇒ Object 



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# File 'lib/measure-loader/value_set_helpers.rb', line 24

def unique_list_of_valuesets_referenced_by_elms(elms)
  elm_value_sets = []
  elms.each do |elm|
    elm.dig('library','valueSets','def')&.each do |value_set|
      elm_value_sets << {oid: value_set['id'], version: value_set['version'], profile: value_set['profile']}
    end
  end
  elm_value_sets.uniq!
  return elm_value_sets
end