Module: ActiveRecord::NestedAttributes::ClassMethods

Defined in:
lib/active_record/nested_attributes/class_methods.rb

Instance Method Summary collapse

Instance Method Details

#_rails_accepts_nested_attributes_for ⇒ Object 



10
 
# File 'lib/active_record/nested_attributes/class_methods.rb', line 10

alias _rails_accepts_nested_attributes_for accepts_nested_attributes_for

#accepts_nested_attributes_for(*attr_names) ⇒ Object

rubocop:disable Metrics/AbcSize



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# File 'lib/active_record/nested_attributes/class_methods.rb', line 13

def accepts_nested_attributes_for(*attr_names)
  _rails_accepts_nested_attributes_for(*attr_names)

  # remove any options from the end of the array
  attr_names.extract_options!

  unless respond_to?(:nested_attribute_destruction_watch_associations)
    self.class.define_method(:nested_attribute_destruction_watch_associations) do
      @nested_attribute_destruction_watch_associations || {}
    end
  end

  unless respond_to?(:nested_attribute_destruction_watch_association)
    self.class.define_method(:nested_attribute_destruction_watch_association) do |assoc, type|
      @nested_attribute_destruction_watch_associations ||= {}
      @nested_attribute_destruction_watch_associations[assoc.to_sym] = type
    end
  end

  NestedAttributeDestruction::Monitor.define_hooks(self) if attr_names.any?

  attr_names.each do |association_name|
    reflection = _reflect_on_association(association_name)
    next unless reflection

    type = (reflection.collection? ? :many : :one)

    nested_attribute_destruction_watch_association(association_name, type)
    NestedAttributeDestruction::Monitor.define_predicate(self, association_name)
  end
end