# Undefined method \`category\_id'

**URL:** <https://www.ruby-forum.com/t/undefined-method-category-id/94334>\
**Category:** Rails\
**Created:** [April 29, 2006, 2:28am UTC](https://www.ruby-forum.com/t/undefined-method-category-id/94334 "2006-04-29T02:28:32Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![LurlayS\_Patrick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ee7513/32.png) [@LurlayS\_Patrick](https://www.ruby-forum.com/u/LurlayS_Patrick)\
**Post date:** [April 29, 2006, 2:28am UTC](https://www.ruby-forum.com/t/undefined-method-category-id/94334/1 "2006-04-29T02:28:32Z")

</div>

3:  
4: **Category:**   
5:   
6: \<%= options\_from\_collection\_for\_select @categories, “id”,  
“category”, @product.category\_id %\>  
7:   
8:

  
9:

---

<div class="post-metadata">

**Author:** ![LurlayS\_Patrick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ee7513/32.png) [@LurlayS\_Patrick](https://www.ruby-forum.com/u/LurlayS_Patrick)\
**Post date:** [April 29, 2006, 9:07am UTC](https://www.ruby-forum.com/t/undefined-method-category-id/94334/2 "2006-04-29T09:07:01Z")

</div>

Lurlay, Patrick wrote:

> 3:  
> 4: **Category:**   
> 5:   
> 6: \<%= options\_from\_collection\_for\_select @categories, “id”,  
> “category”, @product.category\_id %\>  
> 7:   
> 8:
> 
>   
> 9:

Try @product.category.

-Adam