Class: Serega::AttributeValueResolvers::HashAccessDelegateAllowNil

Inherits:
Object
  • Object
show all
Defined in:
lib/serega/attribute_value_resolvers/hash_access.rb

Overview

Value resolver for attributes with :hash_access and :delegate (with :allow_nil) options

Instance Method Summary collapse

Constructor Details

#initialize(to_step, final_step) ⇒ HashAccessDelegateAllowNil

Returns a new instance of HashAccessDelegateAllowNil.



102
103
104
105
 
# File 'lib/serega/attribute_value_resolvers/hash_access.rb', line 102

def initialize(to_step, final_step)
  @to_step = to_step
  @final_step = final_step
end

Instance Method Details

#call(object) ⇒ Object?

Delegates the value reading through the intermediate object, resolving a nil intermediate to nil

Parameters:

  • object (Object) —

    serialized object

Returns:

  • (Object, nil) —

    the value found



114
115
116
117
118
119
 
# File 'lib/serega/attribute_value_resolvers/hash_access.rb', line 114

def call(object)
  intermediate = @to_step.call(object)
  return if intermediate.nil?

  @final_step.call(intermediate)
end