Module: ActiveRecord::Associations::ForeignAssociation

Included in:
HasManyAssociation, HasOneAssociation
Defined in:
activerecord/lib/active_record/associations/foreign_association.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#foreign_key_present? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/associations/foreign_association.rb', line 5

def foreign_key_present?
  if reflection.klass.primary_key
    owner.attribute_present?(reflection.active_record_primary_key)
  else
    false
  end
end

#nullified_owner_attributes ⇒ Object 



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# File 'activerecord/lib/active_record/associations/foreign_association.rb', line 13

def nullified_owner_attributes
  Hash.new.tap do |attrs|
    Array(reflection.foreign_key).each { |foreign_key| attrs[foreign_key] = nil }
    attrs[reflection.type] = nil if reflection.type.present?
  end
end