2009/9/25 Dudebot <[email protected]>:
>
> 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"], ...}}
This looks a bit odd, why is it passing the id as a single element
array I wonder?
See below
> [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 <[email protected]> wrote:
>> 2009/9/25 Dudebot <[email protected]>:
>>
>>
>>
>>
>>
>>
>>
>> > 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 %>
I don't see anything wrong with this.
>>
>> > 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
There is the problemI think, the extra set of [] for item[category_id].
Are you sure you have item belongs_to :category? It is as if it
thinks there should be an array of id values.
Colin
>> > 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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