/usr/lib/ruby/vendor_ruby/active_record/associations/belongs_to_polymorphic_association.rb is in ruby-activerecord-3.2 3.2.16-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | module ActiveRecord
# = Active Record Belongs To Polymorphic Association
module Associations
class BelongsToPolymorphicAssociation < BelongsToAssociation #:nodoc:
def klass
type = owner[reflection.foreign_type]
type.presence && type.constantize
end
private
def replace_keys(record)
super
owner[reflection.foreign_type] = record && record.class.base_class.name
end
def different_target?(record)
super || record.class != klass
end
def inverse_reflection_for(record)
reflection.polymorphic_inverse_of(record.class)
end
def raise_on_type_mismatch(record)
# A polymorphic association cannot have a type mismatch, by definition
end
def stale_state
foreign_key = super
foreign_key && [foreign_key.to_s, owner[reflection.foreign_type].to_s]
end
end
end
end
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