Add group milestones to dashboard milestone page

3 files changed, 38 insertions, 2 deletions

diff --git a/app/models/dashboard_group_milestone.rb b/app/models/dashboard_group_milestone.rb
new file mode 100644
index 00000000000..13807d43265
--- /dev/null
+++ b/app/models/dashboard_group_milestone.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+# Dashboard Group Milestones are milestones that allow us to pull more info out for the UI that the Milestone object doesn't allow for
+class DashboardGroupMilestone < GlobalMilestone
+  extend ::Gitlab::Utils::Override
+
+  attr_reader :group_name
+
+  override :initialize
+  def initialize(milestone)
+    super(milestone.title, Array(milestone))
+
+    @group_name = milestone.group.full_name
+  end
+
+  def self.build_collection(groups)
+    MilestonesFinder.new(group_ids: groups.pluck(:id)).execute.map { |m| new(m) }
+  end
+
+  override :group_milestone?
+  def group_milestone?
+    @first_milestone.group_milestone?
+  end
+
+  override :milestoneish_ids
+  def milestoneish_ids
+    milestones.map(&:id)
+  end
+
+  def group
+    @first_milestone.group
+  end
+
+  def iid
+    @first_milestone.iid
+  end
+end
diff --git a/app/models/global_milestone.rb b/app/models/global_milestone.rb
index 2ddad9b6b0b..6e23e811b0e 100644
--- a/app/models/global_milestone.rb
+++ b/app/models/global_milestone.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
-
+# Global Milestones are milestones that can be shared across multiple projects
 class GlobalMilestone
   include Milestoneish
 
diff --git a/app/models/group_milestone.rb b/app/models/group_milestone.rb
index d6ab32ea7c8..9dfaebacc83 100644
--- a/app/models/group_milestone.rb
+++ b/app/models/group_milestone.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
-
+# Group Milestones are milestones that can be shared among many projects within the same group
 class GroupMilestone < GlobalMilestone
   attr_accessor :group