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Configuration ​

Configure services via the configuration method, typically placed in the base class.

Configuration examples ​

For exceptions ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      input_exception_class ApplicationService::Exceptions::Input
      internal_exception_class ApplicationService::Exceptions::Internal
      output_exception_class ApplicationService::Exceptions::Output

      failure_class ApplicationService::Exceptions::Failure
    end
  end
end
ruby
module ApplicationService
  module Exceptions
    class Input < Servactory::Exceptions::Input; end
    class Output < Servactory::Exceptions::Output; end
    class Internal < Servactory::Exceptions::Internal; end

    class Failure < Servactory::Exceptions::Failure; end
  end
end

For result Since 2.5.0 ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      # ...

      result_class ApplicationService::Result
    end
  end
end
ruby
module ApplicationService
  class Result < Servactory::Result; end
end

Collection mode ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      collection_mode_class_names([ActiveRecord::Relation])
    end
  end
end

Hash mode ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      hash_mode_class_names([CustomHash])
    end
  end
end

Helpers for input ​

Base custom helpers for input on the must and prepare options.

Example with must ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      input_option_helpers(
        [
          Servactory::Maintenance::Attributes::OptionHelper.new(
            name: :must_be_6_characters,
            equivalent: {
              must: {
                be_6_characters: {
                  is: ->(value:, input:) { value.all? { |id| id.size == 6 } },
                  message: lambda do |input:, **|
                    "Wrong IDs in `#{input.name}`"
                  end
                }
              }
            }
          )
        ]
      )
    end
  end
end

Example with prepare ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      input_option_helpers(
        [
          Servactory::Maintenance::Attributes::OptionHelper.new(
            name: :to_money,
            equivalent: {
              prepare: ->(value:) { Money.from_cents(value, :USD) }
            }
          )
        ]
      )
    end
  end
end

Helpers for internal ​

Base custom helpers for internal on the must option.

Example with must ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      internal_option_helpers(
        [
          Servactory::Maintenance::Attributes::OptionHelper.new(
            name: :must_be_6_characters,
            equivalent: {
              must: {
                be_6_characters: {
                  is: ->(value:, internal:) { value.all? { |id| id.size == 6 } },
                  message: lambda do |internal:, **|
                    "Wrong IDs in `#{internal.name}`"
                  end
                }
              }
            }
          )
        ]
      )
    end
  end
end

Helpers for output ​

Base custom helpers for output on the must option.

Example with must ​

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      output_option_helpers(
        [
          Servactory::Maintenance::Attributes::OptionHelper.new(
            name: :must_be_6_characters,
            equivalent: {
              must: {
                be_6_characters: {
                  is: ->(value:, output:) { value.all? { |id| id.size == 6 } },
                  message: lambda do |output:, **|
                    "Wrong IDs in `#{output.name}`"
                  end
                }
              }
            }
          )
        ]
      )
    end
  end
end

Aliases for make ​

Add alternatives to make via action_aliases configuration.

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      action_aliases %i[execute]
    end
  end
end

Customization for make ​

Implement shortcuts for make via action_shortcuts configuration.

Values replace make and serve as prefix to the instance method.

Simple mode ​

In simple mode, values are passed as an array of symbols.

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      action_shortcuts(
        %i[assign perform]
      )
    end
  end
end
Example of use
ruby
class CMS::API::Posts::Create < CMS::API::Base
  # ...
  
  assign :model

  perform :request

  private

  def assign_model
    # Build model for API request
  end

  def perform_request
    # Perform API request
  end
  
  # ...
end

Advanced mode Since 2.14.0 ​

In advanced mode, values are passed as a hash.

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      action_shortcuts(
        %i[assign],
        {
          restrict: {             # replacement for make
            prefix: :create,      # method name prefix
            suffix: :restriction  # method name suffix
          }
        }
      )
    end
  end
end
Example of use
ruby
class Payments::Restrictions::Create < ApplicationService::Base
  input :payment, type: Payment

  # The exclamation mark will be moved to the end of the method name
  restrict :payment!

  private

  def create_payment_restriction!
    inputs.payment.restrictions.create!(
      reason: "Suspicion of fraud"
    )
  end
end

Predicate methods Since 2.5.0 ​

Predicate methods for all attributes are enabled by default. Disable them if necessary.

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      predicate_methods_enabled false
    end
  end
end

Root key for I18n Since 2.6.0 ​

Override the default root key for translations (servactory).

ruby
module ApplicationService
  class Base < Servactory::Base
    configuration do
      i18n_root_key :my_app
    end
  end
end

This changes the translation lookup from servactory.* to my_app.*.

See also Internationalization (I18n).