Make the 'Enqueue all' button for Pending jobs optional

README.markdown

@@ -75,6 +75,19 @@ Rails' will need to be configured to `config.action_dispatch.x_sendfile_header =
 
 Lighty is more `X-Sendfile`, like [outlined](http://redmine.lighttpd.net/projects/1/wiki/X-LIGHTTPD-send-file) in their wiki.
 
+Configuration
+-------------
+
+The following settings can be changed using the `.set` method in your configu.ru. For example:
+
+```ruby
+DelayedJobWeb.set(:allow_requeue_pending, false)
+```
+
+* **`allow_requeue_pending`** (default: `true`)
+
+  Controls whether the 'Enqueue all immediately' button is available on the list of Pending jobs. Hiding this button can be useful if you have jobs set to run in the future and you don't want to accidentally run them immediately.
+
 
 Contributing
 ------------

lib/delayed_job_web/application/app.rb

@@ -9,6 +9,8 @@ class DelayedJobWeb < Sinatra::Base
   set :public_folder, File.expand_path('../public', __FILE__)
   set :views, File.expand_path('../views', __FILE__)
 
+  set :allow_requeue_pending, true
+
   # Enable sessions so we can use CSRF protection
   enable :sessions
 
@@ -106,6 +108,7 @@ def csrf_token_tag
     get "/#{page}" do
       @jobs     = delayed_jobs(page.to_sym, @queues).order('created_at desc, id desc').offset(start).limit(per_page)
       @all_jobs = delayed_jobs(page.to_sym, @queues)
+      @allow_requeue_pending = settings.allow_requeue_pending
       erb page.to_sym
     end
   end
@@ -115,11 +118,16 @@ def csrf_token_tag
     redirect back
   end
 
-  %w(pending failed).each do |page|
-    post "/requeue/#{page}" do
-      delayed_jobs(page.to_sym, @queues).update_all(:run_at => Time.now, :failed_at => nil)
-      redirect back
+  post "/requeue/pending" do
+    if settings.allow_requeue_pending
+      delayed_jobs(:pending, @queues).update_all(:run_at => Time.now, :failed_at => nil)
     end
+    redirect back
+  end
+
+  post "/requeue/failed" do
+    delayed_jobs(:failed, @queues).update_all(:run_at => Time.now, :failed_at => nil)
+    redirect back
   end
 
   post "/requeue/:id" do

lib/delayed_job_web/application/views/pending.erb

@@ -1,9 +1,11 @@
 <h1>Pending</h1>
 <% if @jobs.any? %>
-  <form action="<%= u('requeue/pending') %>" method="POST">
-    <%= csrf_token_tag %>
-    <input type="submit" value="Enqueue All Immediately"></input>
-  </form>
+  <% if @allow_requeue_pending -%>
+    <form action="<%= u('requeue/pending') %>" method="POST">
+      <%= csrf_token_tag %>
+      <input type="submit" value="Enqueue All Immediately"></input>
+    </form>
+  <% end -%>
 <% end %>
 <p class="sub">
   The list below contains jobs currently being processed.

test/lib/delayed_job_web/application/test_app.rb

@@ -52,6 +52,27 @@ def test_requeue_pending
 
   end
 
+  def test_requeue_pending_with_requeue_pending_disallowed
+
+    app.set(:allow_requeue_pending, false)
+
+    dataset = Minitest::Mock.new
+    where = lambda { |criteria|
+      dataset
+    }
+
+    Time.stub(:now, time) do
+      Delayed::Job.stub(:where, where) do
+        post "/requeue/pending", request_data, rack_env
+        last_response.status.must_equal 302
+      end
+    end
+
+    # Expect dataset to not have received any method calls.
+    dataset.verify
+
+  end
+
   def test_requeue_id
     job = Minitest::Mock.new
     job.expect(:update_attributes, nil, [:run_at => time, :failed_at => nil])