Simplification for reporting an 'any' type in OpenApi

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Attributor Changelog
 
 ## next
-- added support for enum's out of values in json_schema generation
+- Correctly report an Object type as a schema without a :type in open api output
 
 ## 6.1 (1/7/2022)
 - added support for enum's out of values in json_schema generation

lib/attributor/type.rb

@@ -130,10 +130,14 @@ def json_schema_string_format
 
       def as_json_schema( shallow: false, example: nil, attribute_options: {} )
         type_name = self.ancestors.find { |k| k.name && !k.name.empty? }.name
-        hash = { type: json_schema_type, 'x-type_name': type_name.gsub( Attributor::MODULE_PREFIX_REGEX, '' )}
-        # Add a format, if the type has defined
-        if hash[:type] == :string && the_format = json_schema_string_format
-          hash[:format] = the_format
+        hash = { 'x-type_name': type_name.gsub( Attributor::MODULE_PREFIX_REGEX, '' )}
+        if json_schema_type
+          # A type key does not exist for 'any' (i.e., a nil value for json_schema_type)
+          hash[:type] = json_schema_type   
+          # Add a format, if the type has defined
+          if hash[:type] == :string && the_format = json_schema_string_format
+            hash[:format] = the_format
+          end
         end
         # Common options
         hash[:enum] = attribute_options[:values] if attribute_options[:values]

lib/attributor/types/object.rb

@@ -14,19 +14,12 @@ def self.example(_context = nil, options: {})
       'An Object'
     end
 
-    # Not really used (we override as_json_schema to represent this as an Any Type),
-    # but if it _were_ used, this would be accurate.
-    def self.json_schema_type
-      :object
-    end
-
     # Represents Object as an OpenAPI Any Type.
+    # Which means there is no type key for an Object (i.e., 'any'), so we'll report it as nil
     #
     # @see https://swagger.io/docs/specification/data-models/data-types/#any
-    def self.as_json_schema(**kwargs)
-      schema = super(**kwargs)
-      schema.delete(:type)
-      schema
+    def self.json_schema_type
+      nil
     end
   end
 end