instance method `subscribe`

Ruby on Rails 7.2.3

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 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

Compare with:

subscribe(pattern = nil, callable = nil, monotonic: false, &block)

No documentation comment.

Parameters

pattern opt = nil
callable opt = nil
monotonic key = false
block block

Source

# File activesupport/lib/active_support/notifications/fanout.rb, line 65
      def subscribe(pattern = nil, callable = nil, monotonic: false, &block)
        subscriber = Subscribers.new(pattern, callable || block, monotonic)
        @mutex.synchronize do
          case pattern
          when String
            @string_subscribers[pattern] << subscriber
            clear_cache(pattern)
          when NilClass, Regexp
            @other_subscribers << subscriber
            clear_cache
          else
            raise ArgumentError,  "pattern must be specified as a String, Regexp or empty"
          end
        end
        subscriber
      end

Defined in activesupport/lib/active_support/notifications/fanout.rb line 65 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Notifications::Fanout

Signature

Parameters