Dry up method for code climate

app/services/concerns/update_visibility_level.rb

+module UpdateVisibilityLevel
+  def visibility_level_allowed?(target, new_visibility)
+    # check that user is allowed to set specified visibility_level
+    if new_visibility && new_visibility.to_i != target.visibility_level
+      unless can?(current_user, :change_visibility_level, target) &&
+          Gitlab::VisibilityLevel.allowed_for?(current_user, new_visibility)
+
+        deny_visibility_level(target, new_visibility)
+        return false
+      end
+    end
+
+    true
+  end
+end

app/services/groups/update_service.rb

 module Groups
   class UpdateService < Groups::BaseService
+    include UpdateVisibilityLevel
+
     def execute
       reject_parent_id!
 
-      # check that user is allowed to set specified visibility_level
-      new_visibility = params[:visibility_level]
-      if new_visibility && new_visibility.to_i != group.visibility_level
-        unless can?(current_user, :change_visibility_level, group) &&
-            Gitlab::VisibilityLevel.allowed_for?(current_user, new_visibility)
-
-          deny_visibility_level(group, new_visibility)
-          return false
-        end
-      end
+      return false unless visibility_level_allowed?(group, params[:visibility_level])
 
       return false unless valid_share_with_group_lock_change?
 

app/services/projects/update_service.rb

 module Projects
   class UpdateService < BaseService
+    include UpdateVisibilityLevel
+
     def execute
-      unless visibility_level_allowed?
+      unless visibility_level_allowed?(project, params[:visibility_level])
         return error('New visibility level not allowed!')
       end
 
@@ -28,22 +30,6 @@ module Projects
 
     private
 
-    def visibility_level_allowed?
-      # check that user is allowed to set specified visibility_level
-      new_visibility = params[:visibility_level]
-
-      if new_visibility && new_visibility.to_i != project.visibility_level
-        unless can?(current_user, :change_visibility_level, project) &&
-            Gitlab::VisibilityLevel.allowed_for?(current_user, new_visibility)
-
-          deny_visibility_level(project, new_visibility)
-          return false
-        end
-      end
-
-      true
-    end
-
     def renaming_project_with_container_registry_tags?
       new_path = params[:path]