Class: LightServiceObject::Base

Inherits:
Object
  • Object
show all
Extended by:
Dry::Initializer
Includes:
Dry::Monads::Result::Mixin
Defined in:
lib/light_service_object.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.call(**options) ⇒ Object 



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# File 'lib/light_service_object.rb', line 61

def self.call(**options)
  obj = self.new(**options)

  # Identify incoming params that weren't specified
  # set_params = obj.instance_variables.map{|e| e.to_s.tr("@","").to_sym }
  # unknown_params = (options.keys - set_params)
  # ap("#{self.name} > Unknown Parameters #{unknown_params}") if unknown_params.present?

  result = obj.call
end

.expected_result_class(klass) ⇒ Object 



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# File 'lib/light_service_object.rb', line 56

def self.expected_result_class(klass)
  @result_class = klass
  @result_class = klass.constantize if klass.is_a?(String)
end

.optional(key, **options) ⇒ Object 



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# File 'lib/light_service_object.rb', line 51

def self.optional(key, **options)
  options[:optional] = true
  option(key, **options)
end

.param(key, **options) ⇒ Object

Raises:

  • (Error) 


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# File 'lib/light_service_object.rb', line 43

def self.param(key, **options)
  raise Error.new("Do not use param in a service object")
end

.required(key, **options) ⇒ Object 



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# File 'lib/light_service_object.rb', line 47

def self.required(key, **options)
  option key, **options
end

.result_class ⇒ Object

— CLASS METHODS



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# File 'lib/light_service_object.rb', line 39

def self.result_class
  @result_class
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/light_service_object.rb', line 77

def call
  result = self.perform
  if self.result_class.present?
    if !result.is_a?(self.result_class)
      a_name = "#{self.result_class}"
      a_name = %w[a e i o u y].include?(a_name.first.downcase) ? "an #{a_name}" : "a #{a_name}"

      fail!("#{self.name} is not returning #{a_name}")
    end
  end
  Dry::Monads.Success(result)
rescue StandardError => error
  reason = self.error_reason(error)
  Dry::Monads.Failure(reason)
end

#error_reason(error) ⇒ Object 



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# File 'lib/light_service_object.rb', line 98

def error_reason(error)
  # Give subclasses a chance to see errors first
  "#{self}: #{error}"
end

#fail!(error) ⇒ Object 



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# File 'lib/light_service_object.rb', line 93

def fail!(error)
  error = ::StandardError.new(error.to_s) if !error.is_a?(::StandardError)
  raise error
end

#result_class ⇒ Object

— INSTANCE METHODS



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# File 'lib/light_service_object.rb', line 73

def result_class
  self.class.result_class
end