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module ActiveRecord
# = Active Record Touch Later
module TouchLater
extend ActiveSupport::Concern
included do
before_commit_without_transaction_enrollment :touch_deferred_attributes
end
def touch_later(*names) # :nodoc:
unless persisted?
raise ActiveRecordError, <<-end_error.strip_heredoc
cannot touch on a new or destroyed record object. Consider using
persisted?, new_record?, or destroyed? before touching
end_error
end
@_defer_touch_attrs ||= timestamp_attributes_for_update_in_model
@_defer_touch_attrs |= names
@_touch_time = current_time_from_proper_timezone
surreptitiously_touch @_defer_touch_attrs
self.class.connection.add_transaction_record self
# touch the parents as we are not calling the after_save callbacks
self.class.reflect_on_all_associations(:belongs_to).each do |r|
if touch = r.options[:touch]
ActiveRecord::Associations::Builder::BelongsTo.touch_record(self, r.foreign_key, r.name, touch, :touch_later)
end
end
end
def touch(*names, time: nil) # :nodoc:
if has_defer_touch_attrs?
names |= @_defer_touch_attrs
end
super(*names, time: time)
end
private
def surreptitiously_touch(attrs)
attrs.each { |attr| write_attribute attr, @_touch_time }
clear_attribute_changes attrs
end
def touch_deferred_attributes
if has_defer_touch_attrs? && persisted?
touch(*@_defer_touch_attrs, time: @_touch_time)
@_defer_touch_attrs, @_touch_time = nil, nil
end
end
def has_defer_touch_attrs?
defined?(@_defer_touch_attrs) && @_defer_touch_attrs.present?
end
def belongs_to_touch_method
:touch_later
end
end
end
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