Rails validation - newbie

Rails
1

Hi,

Im getting the following error while attempting to apply valdiation to
email addresses on a form in my rails app:

You have a nil object when you didn’t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.each

Extracted source (around line #39):

36:
37: Feed subscriptions
38:


39: <% @feeds.each do |feed| %>
40: <option value="<%= feed.id %>" <% if
(@user.subscriptions.find(:all, :conditions => “FeedIdentity =
#{feed.id}”).length != 0) %>selected=“selected”<% end %>><%= feed.Title
%>
41: <% end %>
42:

The validation that im applying within my model is:

validates_format_of :Email,
:with =>
/^([^@\s]+)@((?:[-a-z0-9]+.)+[a-z]{2,})$/i,
:on => :update,
:message => ‘has an invalid format’

This is the first time ive tried to use validation on fields hence I may
well be missing something really simple here.

2

From the error, I would guess that the @feeds variable is nil. It would
be
helpful to see the corresponding controller, and know the url you
entered to
trigger the error. My guess is that in some scenario, the @feeds is not
being set in the controller.