From d806230f9f95a2d08253f6c534ba69d1b9a498ea Mon Sep 17 00:00:00 2001
From: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Date: Tue, 13 Dec 2016 16:59:49 +0200
Subject: Add parents method to Namespace

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
---
 app/models/namespace.rb       | 25 ++++++++++++++++++++-----
 spec/models/namespace_spec.rb |  8 ++++++++
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 464be910f5a..b3cefc01b99 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -163,11 +163,26 @@ class Namespace < ActiveRecord::Base
   end
 
   def full_name
-    if parent
-      parent.full_name + ' / ' + name
-    else
-      name
-    end
+    @full_name ||=
+      if parent
+        parent.full_name + ' / ' + name
+      else
+        name
+      end
+  end
+
+  def parents
+    @parents ||=
+      begin
+        parents = []
+
+        if parent
+          parents << parent
+          parents += parent.parents
+        end
+
+        parents
+      end
   end
 
   private
diff --git a/spec/models/namespace_spec.rb b/spec/models/namespace_spec.rb
index 7f82e85563b..265ffc330e3 100644
--- a/spec/models/namespace_spec.rb
+++ b/spec/models/namespace_spec.rb
@@ -132,4 +132,12 @@ describe Namespace, models: true do
     it { expect(group.full_path).to eq(group.path) }
     it { expect(nested_group.full_path).to eq("#{group.path}/#{nested_group.path}") }
   end
+
+  describe '#parents' do
+    let(:group) { create(:group) }
+    let(:nested_group) { create(:group, parent: group) }
+    let(:deep_nested_group) { create(:group, parent: nested_group) }
+
+    it { expect(deep_nested_group.parents).to eq([nested_group, group]) }
+  end
 end
-- 
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