1 files changed, 5 insertions, 6 deletions
diff --git a/app/models/milestone.rb b/app/models/milestone.rb
index e85d5709624..c06bfe0ccdd 100644
--- a/app/models/milestone.rb
+++ b/app/models/milestone.rb
@@ -21,7 +21,6 @@ class Milestone < ActiveRecord::Base
   has_many :issues
   has_many :labels, -> { distinct.reorder('labels.title') },  through: :issues
   has_many :merge_requests
-  has_many :participants, -> { distinct.reorder('users.name') }, through: :issues, source: :assignee
   has_many :events, as: :target, dependent: :destroy
 
   scope :active, -> { with_state(:active) }
@@ -30,7 +29,7 @@ class Milestone < ActiveRecord::Base
 
   validates :title, presence: true, uniqueness: { scope: :project_id }
   validates :project, presence: true
-  validate :start_date_should_be_less_than_due_date, if: Proc.new { |m| m.start_date.present? && m.due_date.present? }
+  validate :start_date_should_be_less_than_due_date, if: proc { |m| m.start_date.present? && m.due_date.present? }
 
   strip_attributes :title
 
@@ -107,6 +106,10 @@ class Milestone < ActiveRecord::Base
     end
   end
 
+  def participants
+    User.joins(assigned_issues: :milestone).where("milestones.id = ?", id)
+  end
+
   def self.sort(method)
     case method.to_s
     when 'due_date_asc'
@@ -153,10 +156,6 @@ class Milestone < ActiveRecord::Base
     active? && issues.opened.count.zero?
   end
 
-  def is_empty?(user = nil)
-    total_items_count(user).zero?
-  end
-
   def author_id
     nil
   end