Class: Shoulda::Matchers::ActiveRecord::AssociationMatchers::OptionalMatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attribute_name, optional) ⇒ OptionalMatcher

Returns a new instance of OptionalMatcher.



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# File 'lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb', line 9

def initialize(attribute_name, optional)
  @attribute_name = attribute_name
  @optional = optional
  @submatcher = ActiveModel::AllowValueMatcher.new(nil).
    for(attribute_name)
  @missing_option = ''
end

Instance Attribute Details

#missing_option ⇒ Object (readonly)

Returns the value of attribute missing_option.



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# File 'lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb', line 7

def missing_option
  @missing_option
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb', line 17

def description
  "optional: #{optional}"
end

#matches?(subject) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shoulda/matchers/active_record/association_matchers/optional_matcher.rb', line 21

def matches?(subject)
  if submatcher_passes?(subject)
    true
  else
    @missing_option = 'and for the record '

    missing_option <<
      if optional
        'not to '
      else
        'to '
      end

    missing_option << (
      'fail validation if '\
      ":#{attribute_name} is unset; i.e., either the association "\
      'should have been defined with `optional: '\
      "#{optional.inspect}`, or there "
    )

    missing_option <<
      if optional
        'should not '
      else
        'should '
      end

    missing_option << "be a presence validation on :#{attribute_name}"

    false
  end
end