From a07338d6ec14158b3ce4482c3b64213e600157db Mon Sep 17 00:00:00 2001
From: AntonioTerceiro <AntonioTerceiro@3f533792-8f58-4932-b0fe-aaf55b0a4547>
Date: Mon, 31 Dec 2007 13:51:49 +0000
Subject: [PATCH] ActionItem132: adding HABTM relationship between articles and categories. Declared only in articles by now, though.

---
 app/models/article.rb                     |  2 ++
 db/migrate/021_add_articles_categories.rb | 14 ++++++++++++++
 test/unit/article_test.rb                 | 18 ++++++++++++++++++
 3 files changed, 34 insertions(+), 0 deletions(-)
 create mode 100644 db/migrate/021_add_articles_categories.rb

diff --git a/app/models/article.rb b/app/models/article.rb
index b8d36e7..d049855 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -9,6 +9,8 @@ class Article < ActiveRecord::Base
 
   has_many :comments
 
+  has_and_belongs_to_many :categories
+
   acts_as_taggable  
   N_('Tag list')
 
diff --git a/db/migrate/021_add_articles_categories.rb b/db/migrate/021_add_articles_categories.rb
new file mode 100644
index 0000000..a8c99ec
--- /dev/null
+++ b/db/migrate/021_add_articles_categories.rb
@@ -0,0 +1,14 @@
+class AddArticlesCategories < ActiveRecord::Migration
+  def self.up
+    create_table :articles_categories do |t|
+      t.column :article_id, :integer
+      t.column :category_id, :integer
+    end
+    add_index(:articles_categories, :article_id)
+    add_index(:articles_categories, :category_id)
+  end
+
+  def self.down
+    drop_table :articles_categories
+  end
+end
diff --git a/test/unit/article_test.rb b/test/unit/article_test.rb
index d34cb3a..6162afe 100644
--- a/test/unit/article_test.rb
+++ b/test/unit/article_test.rb
@@ -171,4 +171,22 @@ class ArticleTest < Test::Unit::TestCase
     assert_equal(profile.url + "/myarticle", article.url)
   end
 
+  should 'associate with categories' do
+    env = Environment.default
+    c1 = env.categories.build(:name => "test category 1"); c1.save!
+    c2 = env.categories.build(:name => "test category 2"); c2.save!
+
+    article = profile.articles.build(:name => 'withcategories')
+    article.save!
+
+    assert_raise ActiveRecord::AssociationTypeMismatch do
+      article.categories << 1  
+    end
+
+    assert_nothing_raised do
+      article.categories << c1
+      article.categories << c2
+    end
+  end
+
 end
--
libgit2 0.21.2