Merge pull request #97 from datacite/fix_kernel-3-problem

Fix  content negotiate for schema 3.x dois

lib/bolognese/datacite_utils.rb

@@ -11,7 +11,13 @@ def datacite_xml
     end
 
     def datacite_errors(xml: nil, schema_version: nil)
-      schema_version = schema_version.to_s.start_with?("http://datacite.org/schema/kernel") ? schema_version : "http://datacite.org/schema/kernel-4"
+      if xml.present?
+        namespaces = Nokogiri::XML(xml, nil, 'UTF-8').root.namespaces
+        schema_version = namespaces.fetch('xmlns',nil).presence || namespaces.fetch('xmlns:ns0',nil).presence
+      else
+        schema_version = schema_version.to_s.start_with?("http://datacite.org/schema/kernel") ? schema_version : "http://datacite.org/schema/kernel-4"
+      end
+
       kernel = schema_version.to_s.split("/").last
       filepath = File.expand_path("../../../resources/#{kernel}/metadata.xsd", __FILE__)
       schema = Nokogiri::XML::Schema(open(filepath))

spec/writers/bibtex_writer_spec.rb

@@ -19,6 +19,18 @@
       expect(bibtex[:copyright]).to eq("Creative Commons Attribution 3.0 Unported")
     end
 
+    it "with schema_3" do
+      # input = fixture_path + "datacite_kernel_3.json"
+      input = fixture_path + "datacite_schema_3.xml"
+      json = Bolognese::Metadata.new(input: input, from: "datacite")
+      subject = Bolognese::Metadata.new(input: json.meta.to_json, from: "datacite_json")
+      bibtex = BibTeX.parse(subject.bibtex).to_a(quotes: '').first
+      expect(bibtex[:bibtex_type].to_s).to eq("misc")
+      expect(bibtex[:bibtex_key]).to eq("https://doi.org/10.5061/dryad.8515")
+      expect(bibtex[:doi]).to eq("10.5061/dryad.8515")
+      expect(bibtex[:year]).to eq("2011")
+    end
+
     it "with pages" do
       input = "https://doi.org/10.1155/2012/291294"
       subject = Bolognese::Metadata.new(input: input, from: "crossref")