Validation issues

Rails
1

I have a form. Everything submits into the database if I don’t have any
validation rules. When I put these rules:

validates_uniqueness_of :title, :message => “already exists in
database”

validates_presence_of :title

I get this error (which seems weird because I am not validating against
that):

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 #18):

15:

Focus

16:
17:
18: <% for @focus in @focuses %>
19: <%= @focus.name %>
20: <% end %>
21:

Seth B.

Web Resources Coordinator

Kentucky Academy of Technology Education

Murray State University

2

On Tue, 2006-02-21 at 13:59 -0600, Buntin, Seth - KATE wrote:

I’m working on a very similar thing - I can’t get the validations to
work (separate thread)

In your case, if you add ! to your controller…

if focus.save! # I’m guessing that it’s a ‘focus’ you are
trying to save

Then you will get an active record error instead of the meaningless view
code error

Craig

3

Its because you are redisplaying your form with out reloading the
options for your form. The render method does just that, it simply
renders the view, it doesn’t call any other methods in your
controller.

Try adding this before you render the form again:
@focuses = Focus.find :all

4

Buntin, Seth - KATE wrote:

|21: |

You should probably confirm what is in focuses with something like

I think you will find focuses is a ‘nil’

I think this should be using a local variable

<% for focus in @focuses %>|

<%= focus.name %>| <% end %>|

Murray State University

Regards Neil.