Method deprecated or moved
This method is deprecated or moved on the latest stable version.
The last existing version (v5.0.0.1) is shown here.
skip_callback(name, *filter_list, &block)
public
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 < Person
skip_callback :validate, :before, :check_membership, if: -> { self.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 632
def skip_callback(name, *filter_list, &block)
type, filters, options = normalize_callback_params(filter_list, block)
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
1Note
Basic usage example:
class User < ActiveRecord::Base
#...
skip_callback :create, :after, :send_welcome_email
#...
end
