Empty attributes

In some cases, you might want to skip attributes if values were not provided For example, here if value was not provided then supplier will be saved as null for Configuration instance:

class Supplier
  include StoreModel::Model

  attribute :title, :string
end

class Configuration
  include StoreModel::Model

  attribute :supplier, Supplier.to_type
end

Serialization of empty attributes

By default StoreModel will serialize empty attributes when you call as_json on an instance. You can change that behavior globally by turning off serialization for empty attributes.

StoreModel.config.serialize_empty_attributes = false

This option is propagated to array items and nested structures as well.