Models Refactoring: Move methods to roles

app/roles/ssh_key.rb

@@ -0,0 +1,18 @@
+module SshKey
+  def update_repository
+    Gitlab::GitHost.system.new.configure do |c|
+      c.update_keys(identifier, key)
+      c.update_projects(projects)
+    end
+  end
+
+  def repository_delete_key
+    Gitlab::GitHost.system.new.configure do |c|
+      #delete key file is there is no identically deploy keys
+      if !is_deploy_key || Key.where(:identifier => identifier).count() == 0
+        c.delete_key(identifier)
+      end
+      c.update_projects(projects)
+    end
+  end
+end