[Rails] Variable not evaluating, returning nil object

Pete Yandell
Tue, 11 Apr 2006 23:44:20 -0000

That doesn''t tell you that b is nil; that tells you that items[b] is
nil. Are you absolutely sure that the value of b is an integer zero?
It could, for example, be the string "0"? What if you change items[b]
to items[b.to_i]?

Pete Yandell
http://9cays.com

On 12/04/2006, at 8:43 AM, Nestor Marchante wrote:
> There is probably a simple answer to this, but I?m fairly new to
> rails.
>
>
> Any idea why the variable ?b? won?t evaluate on this line?
>
>
> <%=image_tag(thumbnail(items[b].catalognum, 192),:alt=>items
> [b].view_description,:border=>0)%>
>
>
> If I change it to:
>
>
> <%=image_tag(thumbnail(items[0].catalognum, 192),:alt=>items
> [0].view_description,:border=>0)%>
>
>
> It works fine, and if I append the value of b at the end it prints
> on the screen as the correct value (0). But, it?s insisting that
> there is a nil object.
>
>
>
> ?You have a nil object when you didn''t expect it!The error occured
> while evaluating nil.catalognum?