Module: ActiveSupport::Rescuable

Relationships & Source Files
Namespace Children
Modules: `ClassMethods`
Extension / Inclusion / Inheritance Descendants
Included In: `::ActionCable::Channel::Base`, `::ActionCable::Connection::Base`, `::ActionController::API`, `::ActionController::Base`, `::ActionController::Rescue`, `::ActionMailbox::Base`, `::ActionMailer::Base`, `::ActionMailer::MailDeliveryJob`, `::ActionMailer::Rescuable`, `::ActionView::TestCase::TestController`, `::ActiveJob::Base`, `::ActiveJob::Execution`, `::ActiveRecord::DestroyAssociationAsyncJob`, `::Rails::ApplicationController`, `::Rails::HealthController`, `::Rails::InfoController`, `::Rails::MailersController`, `::Rails::PwaController`, `::Rails::WelcomeController`
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, `Concern`
Defined in:	activesupport/lib/active_support/rescuable.rb

Overview

Rescuable module adds support for easier exception handling.

class_methods	Define class methods from given block.
included	Evaluate given block in context of base class, so that you can write class macros here.
prepended	Evaluate given block in context of base class, so that you can write class macros here.
append_features, prepend_features

#rescue_with_handler(exception)

Delegates to the class method, but uses the instance as the subject for rescue_from handlers (method calls, instance_exec blocks).
#handler_for_rescue(exception) Internal use only

Internal handler lookup.

[ GitHub ]



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# File 'activesupport/lib/active_support/rescuable.rb', line 14


included do
  class_attribute :rescue_handlers, default: []
end

This method is for internal use only.

Internal handler lookup. Delegates to class method. Some libraries call this directly, so keeping it around for compatibility.

[ GitHub ]

# File 'activesupport/lib/active_support/rescuable.rb', line 172


def handler_for_rescue(exception) # :nodoc:
  self.class.handler_for_rescue exception, object: self
end

Delegates to the class method, but uses the instance as the subject for rescue_from handlers (method calls, instance_exec blocks).

[ GitHub ]

# File 'activesupport/lib/active_support/rescuable.rb', line 166


def rescue_with_handler(exception)
  self.class.rescue_with_handler exception, object: self
end