Add :readonly option to HasManyThrough associations. Closes #11156 [miloops]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8989 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

2 files changed, 7 insertions, 1 deletions

diff --git a/activerecord/test/cases/associations_test.rb b/activerecord/test/cases/associations_test.rb
index 89b978ad06..50643066b9 100755
--- a/activerecord/test/cases/associations_test.rb
+++ b/activerecord/test/cases/associations_test.rb
@@ -554,6 +554,11 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
     companies(:first_firm).readonly_clients.find(:all).each { |c| assert c.readonly? }
   end
 
+  def test_cant_save_has_many_readonly_association
+    authors(:david).readonly_comments.each { |c| assert_raise(ActiveRecord::ReadOnlyRecord) { c.save! } }
+    authors(:david).readonly_comments.each { |c| assert c.readonly? }
+  end
+
   def test_triple_equality
     assert !(Array === Firm.find(:first).clients)
     assert Firm.find(:first).clients === Array
diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index 593d77342e..523d794fb3 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -20,7 +20,8 @@ class Author < ActiveRecord::Base
   has_many :funky_comments, :through => :posts, :source => :comments
   has_many :ordered_uniq_comments, :through => :posts, :source => :comments, :uniq => true, :order => 'comments.id'
   has_many :ordered_uniq_comments_desc, :through => :posts, :source => :comments, :uniq => true, :order => 'comments.id DESC'
-
+  has_many :readonly_comments, :through => :posts, :source => :comments, :readonly => true
+  
   has_many :special_posts
   has_many :special_post_comments, :through => :special_posts, :source => :comments