1 files changed, 20 insertions, 3 deletions
diff --git a/activejob/lib/active_job/queue_name.rb b/activejob/lib/active_job/queue_name.rb
index 9698835b6e..45acb71605 100644
--- a/activejob/lib/active_job/queue_name.rb
+++ b/activejob/lib/active_job/queue_name.rb
@@ -6,16 +6,33 @@ module ActiveJob
       mattr_accessor(:queue_name_prefix)
       mattr_accessor(:default_queue_name) { "default" }
 
-      def queue_as(part_name)
+      def queue_as(part_name=nil, &block)
+        if block_given?
+          self.queue_name = block
+        else
+          self.queue_name = queue_name_from_part(part_name)
+        end
+      end
+
+      def queue_name_from_part(part_name) #:nodoc:
         queue_name = part_name.to_s.presence || default_queue_name
         name_parts = [queue_name_prefix.presence, queue_name]
-        self.queue_name = name_parts.compact.join('_')
+        name_parts.compact.join('_')
       end
     end
 
     included do
-      class_attribute :queue_name
+      class_attribute :queue_name, instance_accessor: false
       self.queue_name = default_queue_name
     end
+
+    # Returns the name of the queue the job will be run on
+    def queue_name
+      if @queue_name.is_a?(Proc)
+        @queue_name = self.class.queue_name_from_part(instance_exec(&@queue_name))
+      end
+      @queue_name
+    end
+
   end
 end