Arvados

schema_controller.rb:87:

        object_properties = {}
        k.columns.
          select { |col| col.name != 'id' }.
          collect do |col|
          if k.serialized_attributes.has_key? col.name
            object_properties[col.name] = {
              type: k.serialized_attributes[col.name].object_class.to_s
            }
          else
            object_properties[col.name] = {
              type: col.type
            }
          end
        end

This is introspecting over the internal SQL columns known to ActiveRecord, rather than the public data model declared in the 'api_accessible' stanzas of each subclass of ArvadosModel. This results in bugs such as Workbench recognizing fields on the internal SQL schema that are not intended for external consumption.

Fixing this is probably a prerequisite to #3818