# File lib/tapkit/access/attribute.rb, line 52 def validate_required_attributes msg = "Attribute requires attributes: 'name', 'column_name', " + "'external_type', 'class_name'" if @name.nil? or @column_name.nil? or @external_type.nil? or \ @class_name.nil? then key = @name || :attribute error = ValidationError.new(msg, key) raise error end end