# Full nested models errors listing

**URL:** <https://www.ruby-forum.com/t/full-nested-models-errors-listing/176270>\
**Category:** Rails\
**Created:** [September 28, 2009, 9:33am UTC](https://www.ruby-forum.com/t/full-nested-models-errors-listing/176270 "2009-09-28T09:33:05Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![bartocc](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/c68b51/32.png) [@bartocc](https://www.ruby-forum.com/u/bartocc)\
**Post date:** [September 28, 2009, 9:33am UTC](https://www.ruby-forum.com/t/full-nested-models-errors-listing/176270/1 "2009-09-28T09:33:05Z")

</div>

Hi,

I am using Rails 2.3 new nested model forms.  
Let’s say I want to create a book, and add 2 authors to this book.

Validation happens on the author name, and both the names I’ve filled  
in do no validate.

When I use the helper “full\_error\_messages”, I only get 1 of the  
authors validation error, not both …

Is there a way to have the full listing of the nested models errors ?

Thx  
Julien