lib/bolognese/schema_org.rb in bolognese-0.8 vs lib/bolognese/schema_org.rb in bolognese-0.8.1

@@ -29,11 +29,11 @@
     def exists?
       metadata.present?
     end
 
     def valid?
-      true
+      schema_org.present?
     end
 
     def doi
       doi_from_url(id)
     end
@@ -112,17 +112,22 @@
       Array.wrap(is_identical_to) +
       Array.wrap(is_part_of) +
       Array.wrap(has_part) +
       Array.wrap(is_previous_version_of) +
       Array.wrap(is_new_version_of) +
-      Array.wrap(references)
+      Array.wrap(references) +
+      Array.wrap(is_supplemented_by)
     end
 
     def get_related_identifier(relation_type: nil)
       normalize_ids(metadata.fetch(relation_type, nil), SO_TO_DC_RELATION_TYPES[relation_type])
     end
 
+    def get_reverse_related_identifier(relation_type: nil)
+      normalize_ids(metadata.dig("@reverse", relation_type), SO_TO_DC_RELATION_TYPES[relation_type])
+    end
+
     def is_identical_to
       get_related_identifier(relation_type: "sameAs")
     end
 
     def is_part_of
@@ -141,9 +146,21 @@
       get_related_identifier(relation_type: "isSuccessor")
     end
 
     def references
       get_related_identifier(relation_type: "citation")
+    end
+
+    def is_referenced_by
+      get_reverse_related_identifier(relation_type: "citation")
+    end
+
+    def is_supplement_to
+      get_reverse_related_identifier(relation_type: "isBasedOn")
+    end
+
+    def is_supplemented_by
+      get_related_identifier(relation_type: "isBasedOn")
     end
 
     def publisher
       metadata.dig("publisher", "name")
     end