Merge pull request #538 from metanorma/fix/metadata-recursive-hash

Fix/metadata recursive hash

lib/isodoc/function/utils.rb

@@ -3,6 +3,9 @@
 module IsoDoc
   module Function
     module Utils
+      Hash.include Metanorma::Utils::Hash
+      Array.include Metanorma::Utils::Array
+
       def to_xml(node)
         self.class.to_xml(node)
       end
@@ -166,8 +169,8 @@ def populate_template(docxml, _format = nil)
           .merge(@labels ? { labels: @labels } : {})
           .merge(@meta.labels ? { labels: @meta.labels } : {})
           .merge(fonts_options || {})
-        template = liquid(docxml)
-        template.render(meta.map { |k, v| [k.to_s, empty2nil(v)] }.to_h)
+        liquid(docxml).render(meta.stringify_all_keys
+          .transform_values { |v| empty2nil(v) })
           .gsub("<", "<").gsub(">", ">").gsub("&", "&")
       end
 

lib/isodoc/metadata.rb

@@ -3,7 +3,7 @@
 
 module IsoDoc
   class Metadata
-    attr_accessor :fonts_options
+    attr_accessor :fonts_options, :labels
 
     def ns(xpath)
       Common::ns(xpath)

spec/isodoc/metadata_spec.rb

@@ -473,4 +473,27 @@
     expect(metadata(c.info(Nokogiri::XML(input), nil)))
       .to be_equivalent_to output
   end
+
+  it "processes metadata with embedded objects" do
+    c = IsoDoc::Convert.new({})
+    c.convert_init(<<~INPUT, "test", false)
+      <iso-standard xmlns="http://riboseinc.com/isoxml">
+    INPUT
+    c.meta.labels = { hash: { key: [{ key1: 1 }, { key2: 2 }] } }
+    template = <<~OUTPUT
+      <xml> {{ labels["hash"] }} </xml>
+    OUTPUT
+    input = <<~INPUT
+      <iso-standard xmlns="http://riboseinc.com/isoxml">
+      <bibdata type="standard">
+      </bibdata>
+      </iso-standard>
+    INPUT
+    output = <<~OUTPUT
+      <xml> {"key"=>[{"key1"=>1}, {"key2"=>2}]} </xml>
+    OUTPUT
+    c.info(Nokogiri::XML(input), nil)
+    expect(c.populate_template(template))
+      .to be_equivalent_to output
+  end
 end