Class: Shoulda::Matchers::ActiveRecord::AssociationMatchers::ThroughMatcher

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(through, name) ⇒ ThroughMatcher

Returns a new instance of ThroughMatcher.



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

def initialize(through, name)
  @through = through
  @name = name
  @missing_option = ''
end

Instance Attribute Details

#missing_option ⇒ Object

Returns the value of attribute missing_option.



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

def missing_option
  @missing_option
end

Instance Method Details

#association_set_properly? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 24

def association_set_properly?
  through_association_exists? && through_association_correct?
end

#description ⇒ Object 



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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 15

def description
  "through #{through}"
end

#matches?(subject) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 19

def matches?(subject)
  self.subject = ModelReflector.new(subject, name)
  through.nil? || association_set_properly?
end

#through_association_correct? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 42

def through_association_correct?
  if option_verifier.correct_for_string?(:through, through)
    true
  else
    self.missing_option =
      "Expected #{name} to have #{name} through #{through}, "\
      'but got it through ' +
      option_verifier.actual_value_for(:through).to_s
    false
  end
end

#through_association_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 28

def through_association_exists?
  if through_reflection.present?
    true
  else
    self.missing_option =
      "#{name} does not have any relationship to #{through}"
    false
  end
end

#through_reflection ⇒ Object 



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# File 'lib/shoulda/matchers/active_record/association_matchers/through_matcher.rb', line 38

def through_reflection
  @_through_reflection ||= subject.reflect_on_association(through)
end