Class: HealthDataStandards::SVS::ValueSet

Inherits:
Object
  • Object
show all
Includes:
Mongoid::Document
Defined in:
lib/health-data-standards/models/svs/value_set.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extract_categories(vs_element) ⇒ Object 



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# File 'lib/health-data-standards/models/svs/value_set.rb', line 59

def self.extract_categories(vs_element)
  category_hash = Hash.new {|h,k| h[k]=[]}
  groups_with_categories = vs_element.xpath("//vs:Group/@ID[../@displayName='CATEGORY']")
  groups_with_categories.each do |group_number|
    measure = vs_element.xpath("//vs:Group[@displayName='CMS eMeasure ID' and @ID='#{group_number}']/vs:Keyword").text
    categories_for_group = vs_element.xpath("//vs:Group[@displayName='CATEGORY' and @ID='#{group_number}']/vs:Keyword")
    categories_for_group.each do |category|
      category_hash[measure] << category.text
    end
  end
  category_hash.size > 0 ? category_hash : nil
end

.extract_concepts(vs_element) ⇒ Object 



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# File 'lib/health-data-standards/models/svs/value_set.rb', line 49

def self.extract_concepts(vs_element)
  concepts = vs_element.xpath("//vs:Concept").collect do |con|
  code_system_name = HealthDataStandards::Util::CodeSystemHelper::CODE_SYSTEMS[con["codeSystem"]] || con["codeSystemName"]
  Concept.new(code: con["code"], 
              code_system_name: code_system_name,
              code_system_version: con["codeSystemVersion"],
              display_name: con["displayName"], code_system: con["codeSystem"])
  end
end

.load_from_xml(doc) ⇒ Object 



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# File 'lib/health-data-standards/models/svs/value_set.rb', line 38

def self.load_from_xml(doc)
  doc.root.add_namespace_definition("vs","urn:ihe:iti:svs:2008")
  vs_element = doc.at_xpath("/vs:RetrieveValueSetResponse/vs:ValueSet|/vs:RetrieveMultipleValueSetsResponse/vs:DescribedValueSet")
  if vs_element
    vs = ValueSet.new(oid: vs_element["ID"], display_name: vs_element["displayName"], version: vs_element["version"])
    vs.concepts = extract_concepts(vs_element)
    vs.categories = extract_categories(vs_element)
    return vs
  end
end

Instance Method Details

#code_set_map ⇒ Object

Provides an Array of Hashes. Each code system gets its own Hash The hash has a key of “set” for the code system name and “values” for the actual code list



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# File 'lib/health-data-standards/models/svs/value_set.rb', line 25

def code_set_map
  codes = []
  self.concepts.inject({}) do |memo, concept|
    memo[concept.code_system_name] ||= []
    memo[concept.code_system_name] << concept.code
    memo
  end.each_pair do |code_set, code_list|
    codes << {"set" => code_set, "values" => code_list}
  end

  codes
end