Thanks super, Colin--that really helps. I believe category_id is
being passed, as in the development.log
Processing ItemsController#update (for ::1 at 2009-09-25 06:34:23)
[PUT]
Parameters: {"commit"=>"Update", ... "id"=>"228", "item"=>
{..."category_id"=>["2"], ...}}
[4;35;1mPage Load (1.1ms) [0m [0mSELECT * FROM "pages" ORDER BY
position [0m
[4;36;1mUser Load (0.6ms) [0m [0;1mSELECT * FROM "users" WHERE
("users"."id" = 1) LIMIT 1 [0m
[4;35;1mItem Load (0.7ms) [0m [0mSELECT * FROM "items" WHERE
("items"."id" = 228) [0m
Redirected to http://localhost:3000/items/228
Completed in 102ms (DB: 2) | 302 Found [http://localhost/items/228]
and for different updates, the number in category_id [ ] is changing.
In my controller, I have the provided boilerplate for update:
def update
@item = Item.find( params[ :id ] )
respond_to do |format|
if @item.update_attributes(params[:item])
...
Am I missing something in the controller? Does a collection need to
be handled separately?
Many TIA,
Craig
On Sep 25, 2:36 am, Colin Law <clan...@googlemail.com> wrote:
> 2009/9/25 Dudebot <craign...@gmail.com>:
>
>
>
>
>
>
>
> > Hi Gurus, I'm trying to tackle a drop down list. I have category and
> > item dbs, and they're wired up with category has_many :items and item
> > belongs_to :category, and an item has a category_id. I have this code
> > in my new/edit.html.erb for item:
>
> > <%= f.collection_select :category_id,
> > Category.find_main, :id, :header, {}, :multiple => false %>
>
> > And a pretty drop down list comes up, but no matter what I do, I can't
> > save an item with a different category--it always stubbornly records
> > the same one (or doesn't change it at all). The source html code
> > generated is:
>
> > <select id="item_category_id" name="item[category_id][]"><option
> > value="3">Awesome Things</option>
> > <option value="1" selected="selected">Good Things</option>
> > <option value="2">Better Things</option></select>
>
> > ...and although I can "choose" a different category for an item than
> > 'Good Things', it only records 'Good Things' (category_id 1) for all
> > items.
>
> The first thing to do is to look in your log file (log/developent.log)
> to check that the selection is being passed in params. If it is then
> consider whether what the controller action that you are passing it to
> is doing with it.
>
> Colin
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