lib/dato/json_api_serializer.rb in dato-0.7.16 vs lib/dato/json_api_serializer.rb in dato-0.7.17

@@ -21,12 +21,14 @@
       end
 
       data[:type] = type
       data[:attributes] = serialized_attributes(resource)
 
-      if relationships.any?
-        data[:relationships] = serialized_relationships(resource)
+      serialized_relationships = serialized_relationships(resource)
+
+      if serialized_relationships
+        data[:relationships] = serialized_relationships
       end
 
       { data: data }
     end
 
@@ -80,11 +82,11 @@
         elsif required_relationships.include?(relationship)
           throw "Required attribute: #{relationship}"
         end
       end
 
-      result
+      result.empty? ? nil : result
     end
 
     def attributes(resource)
       if type == 'item'
         return resource.keys.map(&:to_sym) - %i[
@@ -108,10 +110,14 @@
     def relationships
       @relationships ||= JsonSchemaRelationships.new(link.schema).relationships
     end
 
     def required_relationships
-      (link_relationships.required || []).map(&:to_sym)
+      if link.schema.properties['data'].required.include?("relationships")
+        (link_relationships.required || []).map(&:to_sym)
+      else
+        []
+      end
     end
 
     def link_attributes
       link.schema.properties['data'].properties['attributes']
     end