Modified web ui to add a delete button to cancel jobs in queue

lib/sidekiq/web.rb

@@ -165,6 +165,13 @@ module Sidekiq
       redirect "#{root_path}queues"
     end
 
+    post "/queues/:name/delete" do
+      Sidekiq.redis do |conn|
+        conn.lrem("queue:#{params[:name]}", 0, params[:key_val])
+      end
+      redirect "#{root_path}queues/#{params[:name]}"
+    end
+
     get "/retries/:score" do
       halt 404 unless params[:score]
       @score = params[:score].to_f

test/test_web.rb

@@ -74,6 +74,24 @@ class TestWeb < MiniTest::Unit::TestCase
         refute conn.smembers('queues').include?('foo')
       end
     end
+    
+    it 'can delete a job' do
+      Sidekiq.redis do |conn|
+        conn.rpush('queue:foo', "{}")
+        conn.rpush('queue:foo', "{\"foo\":\"bar\"}")
+        conn.rpush('queue:foo', "{\"foo2\":\"bar2\"}")
+      end
+
+      get '/queues/foo'
+      assert_equal 200, last_response.status
+
+      post '/queues/foo/delete', key_val: "{\"foo\":\"bar\"}"
+      assert_equal 302, last_response.status
+
+      Sidekiq.redis do |conn|
+        refute conn.lrange('queue:foo', 0, -1).include?("{\"foo\":\"bar\"}")
+      end
+    end
 
     it 'can display scheduled' do
       get '/scheduled'

web/views/queue.slim

@@ -7,6 +7,7 @@ table class="table table-striped table-bordered"
   tr
     th Class
     th Arguments
+    th
   - @messages.each_with_index do |msg, index|
     tr
       td= msg['class']
@@ -17,5 +18,8 @@ table class="table table-striped table-bordered"
           .collapse[id="worker_#{index}"]= msg['args']
         - else
           = msg['args']
-
+      td 
+        form action="#{root_path}queues/#{@name}/delete" method="post" 
+          input name="key_val" value="#{msg.to_json}" type="hidden"
+          input.btn.btn-danger.btn-mini type="submit" name="delete" value="Delete" data-confirm="Are you sure you want to delete this job?"
 == slim :_paging, :locals => { :url => "#{root_path}queues/#{@name}" }