Attributes

Basic

attribute

Required

attribute :uuid, from: String, to: :id, as: String, format: :uuid

Optional

attribute :uuid, from: [String, NilClass], to: :id, as: [String, NilClass], format: :uuid, required: false

string

Required

string! :uuid, to: :id

Optional

string? :uuid, to: :id

integer

Required

integer! :rating, min: 1, max: 10

Optional

integer? :rating, min: 1, max: 10

float

Required

float! :rating

Optional

float? :rating

boolean

Required

boolean! :published

Optional

# not supported

Options

The following options are available for the attribute method:

• from;
• to;
• as;
• format;
• min;
• max.

For helpers these options are also available, with the exception of the from option.

You can find out about supported values for format here.

Helpers

uuid

Example

uuid! :id

Equivalent

string! :id, format: :uuid

Example

uuid? :id

Equivalent

string? :id, format: :uuid

money

Example

money! :box_office

Equivalent

integer! :box_office_cents
string! :box_office_currency

Example

money? :box_office

Equivalent

integer? :box_office_cents
string? :box_office_currency

duration

Example

duration! :episode_duration

Equivalent

attribute :episode_duration, from: String, as: ActiveSupport::Duration, format: { from: :duration }

Example

duration? :episode_duration

Equivalent

attribute :episode_duration, from: [String, NilClass], as: [ActiveSupport::Duration, NilClass], format: { from: :duration }, required: false

date

Example

date! :premiered_on

Equivalent

attribute :premiered_on, from: String, as: Date, format: { from: :date }

Example

date? :premiered_on

Equivalent

attribute :premiered_on, from: [String, NilClass], as: [Date, NilClass], format: { from: :date }, required: false

time

Example

time! :premiered_at

Equivalent

attribute :premiered_at, from: String, as: Time, format: { from: :time }

Example

time? :premiered_at

Equivalent

attribute :premiered_at, from: [String, NilClass], as: [Time, NilClass], format: { from: :time }, required: false

datetime

Example

datetime! :premiered_at

Equivalent

attribute :premiered_at, from: String, as: DateTime, format: { from: :datetime }

Example

datetime? :premiered_at

Equivalent

attribute :premiered_at, from: [String, NilClass], as: [DateTime, NilClass], format: { from: :datetime }, required: false