GitLab re-implement room setting

gitlab-reimplement-room-setting.patch

diff --git a/app/models/project_services/slack_service.rb b/app/models/project_services/slack_service.rb
index 963f544..6f235fd 100644
--- a/app/models/project_services/slack_service.rb
+++ b/app/models/project_services/slack_service.rb
@@ -13,8 +13,9 @@
 #

 class SlackService < Service
-  prop_accessor :webhook
+  prop_accessor :webhook, :room
   validates :webhook, presence: true, if: :activated?
+  validates :room, presence: true, if: :activated?

   def title
     'Slack'
@@ -30,7 +31,8 @@ class SlackService < Service

   def fields
     [
-      { type: 'text', name: 'webhook', placeholder: 'https://hooks.slack.com/services/...' }
+      { type: 'text', name: 'webhook', placeholder: 'https://hooks.slack.com/services/...' },
+      { type: 'text', name: 'room',    placeholder: 'Ex. #general' },
     ]
   end

@@ -43,6 +45,8 @@ class SlackService < Service
     ))

     notifier = Slack::Notifier.new(webhook)
+    notifier.channel = room
+    notifier.username = 'GitLab'
     notifier.ping(message.pretext, attachments: message.attachments)
   end

diff --git a/features/steps/project/services.rb b/features/steps/project/services.rb
index d5d5807..b7c0960 100644
--- a/features/steps/project/services.rb
+++ b/features/steps/project/services.rb
@@ -110,11 +110,13 @@ class Spinach::Features::ProjectServices < Spinach::FeatureSteps
   step 'I fill Slack settings' do
     check 'Active'
     fill_in 'Webhook', with: 'https://hooks.slack.com/services/SVRWFV0VVAR97N/B02R25XN3/ZBqu7xMupaEEICInN685'
+    fill_in 'Room', with: '#gitlab'
     click_button 'Save'
   end

   step 'I should see Slack service settings saved' do
     find_field('Webhook').value.should == 'https://hooks.slack.com/services/SVRWFV0VVAR97N/B02R25XN3/ZBqu7xMupaEEICInN685'
+    find_field('Room').value.should == '#gitlab'
   end

   step 'I click Pushover service link' do