Method: Teckel::Chain::Config#result_constructor

Defined in:
lib/teckel/chain/config.rb

#result_constructor ⇒ Proc #result_constructor(sym_or_proc) ⇒ #call

Overloads:

  • #result_constructor ⇒ Proc

    The callable constructor to build an instance of the result class. Defaults to DEFAULT_CONSTRUCTOR

    Returns:

    • (Proc) —

      A callable that will return an instance of result class.

  • #result_constructor(sym_or_proc) ⇒ #call

    Define how to build the result.

    Examples:

    class MyOperation
  include Teckel::Operation

  class Result < Teckel::Operation::Result
    def initialize(value, success, step, options = {}); end
  end

  # If you need more control over how to build a new +Settings+ instance
  result_constructor ->(value, success, step) { result.new(value, success, step, {foo: :bar}) }
end

    Parameters:

    • sym_or_proc (Symbol, #call) —

      • Either a Symbol representing the public method to call on the result class.

      • Or anything that response to #call (like a Proc).

    Returns:

    • (#call) —

      The callable constructor



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# File 'lib/teckel/chain/config.rb', line 114

def result_constructor(sym_or_proc = nil)
  constructor = build_constructor(result, sym_or_proc) unless sym_or_proc.nil?

  @config.for(:result_constructor, constructor) {
    build_constructor(result, Teckel::DEFAULT_CONSTRUCTOR)
  } || raise(MissingConfigError, "Missing result_constructor config for #{self}")
end