The internals of this method changed between Rails 3.x and 4.0. This method provides the glue to
ensure that cache entries created under the old version still work with the
new class
definition.
# File activesupport/lib/active_support/cache.rb, line 698
def convert_version_4beta1_entry!
if defined?(@v)
@value = @v
remove_instance_variable(:@v)
end
if defined?(@c)
@compressed = @c
remove_instance_variable(:@c)
end
if defined?(@x) && @x
@created_at ||= Time.now.to_f
@expires_in = @x - @created_at
remove_instance_variable(:@x)
end
end
