Skip a previously set callback. Like set_callback,:if or
:unless options may be passed in order to control when the
callback is skipped.
class Writer<Personskip_callback:validate,:before,:check_membership,if:->{age>18}end
An ArgumentError will be raised if the callback has not already
been set (unless the :raise option is set to false).
# File activesupport/lib/active_support/callbacks.rb, line 695
def skip_callback(name, *filter_list, &block)
type, filters, options = normalize_callback_params(filter_list, block)
if options[:if].is_a?(String) || options[:unless].is_a?(String)
ActiveSupport::Deprecation.warn( Passing string to :if and :unless conditional options is deprecated and will be removed in Rails 5.2 without replacement..squish)
end
options[:raise] = true unless options.key?(:raise)
__update_callbacks(name) do |target, chain|
filters.each do |filter|
callback = chain.find { |c| c.matches?(type, filter) }
if !callback && options[:raise]
raise ArgumentError, "#{type.to_s.capitalize} #{name} callback #{filter.inspect} has not been defined"
end
if callback && (options.key?(:if) || options.key?(:unless))
new_callback = callback.merge_conditional_options(chain, if_option: options[:if], unless_option: options[:unless])
chain.insert(chain.index(callback), new_callback)
end
chain.delete(callback)
end
target.set_callbacks name, chain
end
end
