Scott Kulik wrote:> so heres some of my code:
>
> class Item < ActiveRecord::Base
> belongs_to :item_type
> validates_uniqueness_of :name
> ...
>
> the issue i think i''m having is that I have another table which
also has
> a column ''name'' which i am using a collection select
from in a form for
> Items:
>
> <% form_for(@item) do |f| %>
> <%= f.text_field :name %>
> <%= f.collection_select(:item_type_id, @item_types, :id, :name) %>
> ...
> <% end %>
>
> whenever i try to create a new object i get:
>
> error in Items#create
> You have a nil object when you didn''t expect it!
>
> at <%= f.collection_select(:item_type_id, @item_types, :id, :name) %>
>
> i''m not really sure what is going on here or why it is getting an
error
> for a form on new.html.erb but it mentions Items#create at the top.
>
> the form works fine if i take out validates_uniqueness_of
>
> anyone have a clue what is going on here?
>
> do i need to explicitly state that the :name in the collection select is
> from ''item_type.name''?
well after commenting out the collection select for @item_types it gets
an error on the next collection select:
<%= f.select(:manufacturable, { "Yes" => "Yes",
"No" => "No"}) %>
after some more testing it look like the validates uniqueness works
properly if i have all my collection select boxes commented out.
So..the issue is why are my collection select boxes coming back with nil
values after it fails on validation and returns to new Item form?
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