Added subject field to glossarist

lib/termium/core.rb

@@ -42,9 +42,12 @@ def uuid(str = identification_number)
       UUIDTools::UUID.md5_create(UUIDTools::UUID_DNS_NAMESPACE, str).to_s
     end
 
-    # TODO: Utilize "subject" in the Glossarist object:
-    # <subject abbreviation="YBB"
-    # details="Compartment - ISO/IEC JTC 1 Information Technology Vocabulary" />
+    def subject_field
+      return nil unless subject
+
+      "#{subject.details} (#{subject.abbreviation})"
+    end
+
     def to_concept(options = {})
       Glossarist::ManagedConcept.new.tap do |concept|
         # The way to set the universal concept's identifier: data.identifier
@@ -73,6 +76,7 @@ def to_concept(options = {})
             localized_concept.notes << Glossarist::DetailedDefinition.new(content: entry.value)
           end
           localized_concept.sources = concept_sources
+          localized_concept.subject = subject_field
           concept.add_localization(localized_concept)
         end
       end

spec/termium/core_spec.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+RSpec.describe Termium::Core do
+  describe "#subject_field" do
+    context "with subject" do
+      let(:core) { described_class.new(subject: Termium::Subject.new(abbreviation: "YBB", details: "Compartment - ISO/IEC JTC 1")) }
+
+      it "returns details with abbreviation" do
+        expect(core.subject_field).to eq("Compartment - ISO/IEC JTC 1 (YBB)")
+      end
+    end
+
+    context "without subject" do
+      let(:core) { described_class.new }
+
+      it "returns nil" do
+        expect(core.subject_field).to be_nil
+      end
+    end
+  end
+end