jobs: include job duration and queue delay on /jobs page.

app/helpers/application_helper.rb

@@ -133,6 +133,19 @@ module ApplicationHelper
     end
   end
 
+  def duration_to_hhmmssms(seconds)
+    hh = seconds.div(1.hour).to_s
+    mm = seconds.div(1.minute).to_s
+    ss = "%.2d" % (seconds % 1.minute)
+    ms = ("%.3f" % (seconds % 1.second)).delete_prefix("0.")
+
+    if seconds >= 1.hour
+      "#{hh}:#{mm}:#{ss}.#{ms}"
+    else
+      "#{mm}:#{ss}.#{ms}"
+    end
+  end
+
   def humanized_number(number, million: "M", thousand: "k")
     if number >= 1_000_000
       format("%.1f#{million}", number / 1_000_000.0)

app/models/background_job.rb

@@ -62,5 +62,13 @@ class BackgroundJob < GoodJob::Job
     def pretty_name
       job_class.titleize.delete_suffix(" Job")
     end
+
+    def job_duration
+      finished_at - performed_at if finished_at
+    end
+
+    def queue_delay
+      performed_at - created_at if performed_at
+    end
   end
 end

app/policies/background_job_policy.rb

@@ -21,6 +21,6 @@ class BackgroundJobPolicy < ApplicationPolicy
   def api_attributes
     attributes = super
     attributes -= [:serialized_params] unless can_see_params?
-    attributes
+    attributes + [:job_duration, :queue_delay]
   end
 end

app/views/jobs/index.html.erb

@@ -32,6 +32,14 @@
 
       <% t.column :status %>
 
+      <% t.column "Duration" do |job| %>
+        <%= duration_to_hhmmssms(job.job_duration) if job.job_duration %>
+      <% end %>
+
+      <% t.column "Queue Delay" do |job| %>
+        <%= duration_to_hhmmssms(job.queue_delay) if job.queue_delay %>
+      <% end %>
+
       <% t.column "Created" do |job| %>
         <%= time_ago_in_words_tagged(job.created_at) %>
       <% end %>