class method `self.add_event_subscriber`

Ruby on Rails 4.2.9

Since v4.1.16

Available in: v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

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self.add_event_subscriber(event)

No documentation comment.

Parameters

event req

Source

# File activesupport/lib/active_support/subscriber.rb, line 64
      def add_event_subscriber(event)
        return if %w{ start finish }.include?(event.to_s)

        pattern = "#{event}.#{namespace}"

        # don't add multiple subscribers (eg. if methods are redefined)
        return if subscriber.patterns.include?(pattern)

        subscriber.patterns << pattern
        notifier.subscribe(pattern, subscriber)
      end

Defined in activesupport/lib/active_support/subscriber.rb line 64 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Subscriber

Signature

Parameters