From 00fe726a764c3a935351999022d3eac5cc89aac5 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sun, 6 Mar 2005 13:57:16 +0000
Subject: Updated docs on auto-indexing #765 [Astinus]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@848 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/lib/action_view/helpers/form_helper.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb
index e4b90e42f2..32233d26d6 100644
--- a/actionpack/lib/action_view/helpers/form_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_helper.rb
@@ -45,6 +45,14 @@ module ActionView
     #     <input type="submit" value="Save">
     #   </form>
     #
+    # If the object name contains square brackets the id for the object will be inserted. Example:
+    #
+    #   <%= textfield "person[]", "name" %> 
+    # 
+    # ...becomes:
+    #
+    #   <input type="text" id="person_<%= @person.id %>_name" name="person[<%= @person.id %>][name]" value="<%= @person.name %>" />
+    #
     # If the helper is being used to generate a repetitive sequence of similar form elements, for example in a partial
     # used by render_collection_of_partials, the "index" option may come in handy. Example:
     #
-- 
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