From 652d181cc5ad8664b26503068937613b3f9a5a33 Mon Sep 17 00:00:00 2001
From: AntonioTerceiro <AntonioTerceiro@3f533792-8f58-4932-b0fe-aaf55b0a4547>
Date: Tue, 25 Sep 2007 19:21:24 +0000
Subject: [PATCH] ActionItem70: referring to top ancestor of a category

---
 app/models/category.rb     |  4 ++++
 test/unit/category_test.rb | 10 ++++++++++
 2 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/app/models/category.rb b/app/models/category.rb
index 01bd36b..939e888 100644
--- a/app/models/category.rb
+++ b/app/models/category.rb
@@ -77,4 +77,8 @@ class Category < ActiveRecord::Base
     cat.recalculate_path = false
   end
 
+  def top_ancestor
+    self.top_level? ? self : self.parent.top_ancestor
+  end
+
 end
diff --git a/test/unit/category_test.rb b/test/unit/category_test.rb
index a2bd987..d4216c1 100644
--- a/test/unit/category_test.rb
+++ b/test/unit/category_test.rb
@@ -185,4 +185,14 @@ class CategoryTest < Test::Unit::TestCase
     
   end
 
+  should 'be able to get top ancestor' do
+    c1 = Category.create!(:name => 'test category', :environment_id => @env.id)
+    c2 = Category.create!(:name => 'test category', :environment_id => @env.id, :parent_id => c1.id)
+    c3 = Category.create!(:name => 'test category', :environment_id => @env.id, :parent_id => c2.id)
+
+    assert_equal c1, c1.top_ancestor
+    assert_equal c1, c2.top_ancestor
+    assert_equal c1, c3.top_ancestor
+  end
+
 end
--
libgit2 0.21.2