Internal attributes

Internal private attributes can be added via the internal method.

Usage

The assignment and use of internal service attributes is done through the internals=/internals methods.

class UsersService::Create < ApplicationService::Base
  input :first_name, type: String
  input :middle_name, type: String
  input :last_name, type: String

  internal :full_name, type: String

  output :user, type: User

  make :assign_full_name
  make :create!

  def assign_full_name
    internals.full_name = [
      inputs.first_name,
      inputs.middle_name,
      inputs.last_name
    ].join(" ")
  end

  def create!
    outputs.user = User.create!(full_name: internals.full_name)
  end
end

Options

You can find out more about options in the using options section.

Predicate methods

Any internal attribute can be accessed as a predicate method.

# ...

internal :full_name, type: String

# ...

def something
  return unless internals.full_name? # instead of `internals.full_name.present?`

  # ...
end