Make check boxes accept :multiple as option so they can handle collections (such as HABTM).

2 files changed, 14 insertions, 1 deletions

diff --git a/actionpack/test/lib/controller/fake_models.rb b/actionpack/test/lib/controller/fake_models.rb
index b0e5d7a94c..7346cb22bc 100644
--- a/actionpack/test/lib/controller/fake_models.rb
+++ b/actionpack/test/lib/controller/fake_models.rb
@@ -69,7 +69,7 @@ class Post < Struct.new(:title, :author_name, :body, :secret, :written_on, :cost
   attr_accessor :author
   def author_attributes=(attributes); end
 
-  attr_accessor :comments
+  attr_accessor :comments, :comment_ids
   def comments_attributes=(attributes); end
 
   attr_accessor :tags
diff --git a/actionpack/test/template/form_helper_test.rb b/actionpack/test/template/form_helper_test.rb
index 2f6d97de3d..7712883e9c 100644
--- a/actionpack/test/template/form_helper_test.rb
+++ b/actionpack/test/template/form_helper_test.rb
@@ -245,6 +245,19 @@ class FormHelperTest < ActionView::TestCase
     )
   end
 
+  def test_check_box_with_multiple_behavior
+    @post.comment_ids = [2,3]
+    assert_dom_equal(
+      '<input name="post[comment_ids][]" type="hidden" value="0" /><input id="post_comment_ids_1" name="post[comment_ids][]" type="checkbox" value="1" />',
+      check_box("post", "comment_ids", { :multiple => true }, 1)
+    )
+    assert_dom_equal(
+      '<input name="post[comment_ids][]" type="hidden" value="0" /><input checked="checked" id="post_comment_ids_3" name="post[comment_ids][]" type="checkbox" value="3" />',
+      check_box("post", "comment_ids", { :multiple => true }, 3)
+    )
+  end
+
+
   def test_checkbox_disabled_still_submits_checked_value
     assert_dom_equal(
       '<input name="post[secret]" type="hidden" value="1" /><input checked="checked" disabled="disabled" id="post_secret" name="post[secret]" type="checkbox" value="1" />',