Module: ActiveRecord::Null::Mimic

Extended by:
ActiveSupport::Concern
Defined in:
lib/activerecord/null/mimic.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method) ⇒ Object 



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# File 'lib/activerecord/null/mimic.rb', line 65

def method_missing(method, ...)
  reflections = mimic_model_class.reflect_on_all_associations
  if (reflection = reflections.find { |r| r.name == method })
    case reflection.macro
    when :has_many
      define_memoized_association(method, reflection.klass.none)
    when :has_one, :belongs_to
      define_memoized_association(method, reflection.klass.null)
    else
      super
    end
  else
    super
  end
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/activerecord/null/mimic.rb', line 36

def id
  @id
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/activerecord/null/mimic.rb', line 38

def [](key)
  normalized_key = key.to_sym
  association_names = mimic_model_class.reflect_on_all_associations.map(&:name)

  return nil if association_names.include?(normalized_key)

  respond_to?(normalized_key) ? send(normalized_key) : nil
end

#_read_attribute(_) ⇒ Object 



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# File 'lib/activerecord/null/mimic.rb', line 63

def _read_attribute(_) = nil

#destroyed? ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 57

def destroyed? = false

#is_a?(klass) ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 47

def is_a?(klass)
  if klass == mimic_model_class
    true
  else
    super
  end
end

#mimic_model_class ⇒ Object 



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# File 'lib/activerecord/null/mimic.rb', line 34

def mimic_model_class = self.class.mimic_model_class

#new_record? ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 59

def new_record? = false

#null? ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 55

def null? = true

#persisted? ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 61

def persisted? = false

#respond_to_missing?(method, include_private = false) ⇒ Boolean 



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# File 'lib/activerecord/null/mimic.rb', line 81

def respond_to_missing?(method, include_private = false)
  mimic_model_class.reflect_on_all_associations.map(&:name).include?(method) || super
end