Rails - Jul 2006 - HELP - Save drop down list using "collection_select"

Each post has a single category, which I''m filling a drop down list by 
using this:

#view
<p><label for="post_type_id">Category</label><br
/>
<%= collection_select(:id, :type_id, Type.find(:all), :id, :category) %>
</p>

In my Post model I have a field called "type_id" which is to be filled
by the id in the Type table upon selection.  When I click "create" on
my
Post, I want it to get whichever category is selected, and save it in 
the "type_id" field.  I don''t know if I''m going
about this wrong or not.
I''ve never done this before, and can''t get it to work.  I get
the drop
down list to populate from the Type table, but that''s it.

Also, what about editing?  When I edit, will it load the selected type?

Thanks a lot for any thoughts on this!

-- 
Posted via http://www.ruby-forum.com/.

ryan heath wrote:
> Each post has a single category, which I''m filling a drop down
list by
> using this:
> 
> #view
> <p><label
for="post_type_id">Category</label><br />
> <%= collection_select(:id, :type_id, Type.find(:all), :id, :category)
%>
> </p>
> 
> In my Post model I have a field called "type_id" which is to be
filled
> by the id in the Type table upon selection.  When I click
"create" on my
> Post, I want it to get whichever category is selected, and save it in 
> the "type_id" field.  I don''t know if I''m going
about this wrong or not.
> I''ve never done this before, and can''t get it to work.  I
get the drop
> down list to populate from the Type table, but that''s it.
> 
> Also, what about editing?  When I edit, will it load the selected type?
> 
> Thanks a lot for any thoughts on this!
Read through this thread and I think it will help you. I struggled with 
this several days ago and some good folk on the board helped me out.
I''m
new to this myself and I''m not confident I can explain it well enough
in
the right terminology yet to be accurate as I should be, and I don''t 
want to confuse you, but what you want to do, I wanted to do - and have 
done now and it works very well.

http://www.ruby-forum.com/topic/72227#new

Try that thread. Of course you will have to map my fields to your own. 
Read the whole thread as I was not interested in returning an id; I 
wanted just the cateory field value itself.

And yes, it will load the one from the record when editing! That was 
something I had to have happen.

I hope this helps.

Scott

-- 
Posted via http://www.ruby-forum.com/.

On Sunday, July 16, 2006, at 5:52 AM, ryan heath wrote:
>Each post has a single category, which I''m filling a drop down list
by
>using this:
>
>#view
><p><label
for="post_type_id">Category</label><br />
><%= collection_select(:id, :type_id, Type.find(:all), :id, :category)
%>
></p>
>
>In my Post model I have a field called "type_id" which is to be
filled
>by the id in the Type table upon selection.  When I click "create"
on my
>Post, I want it to get whichever category is selected, and save it in
>the "type_id" field.  I don''t know if I''m going
about this wrong or not.
>I''ve never done this before, and can''t get it to work.  I
get the drop
>down list to populate from the Type table, but that''s it.
>
>Also, what about editing?  When I edit, will it load the selected type?
>
>Thanks a lot for any thoughts on this!
>
>--
>Posted via http://www.ruby-forum.com/.
>_______________________________________________
>Rails mailing list
>Rails@lists.rubyonrails.org
>http://lists.rubyonrails.org/mailman/listinfo/rails
This usually works

<%= select ''post'', ''type_id'',
Type.find(:all).map {|x| [x.name, x.id]} %>

I would avoid using ''Type'', ''type'', or any
variation of this if you can.
 ''type'' is a magic column name used for single table
inheritance and
will probably cause all sorts of weird bugs.  It''s also a ruby keyword.


_Kevin
www.sciwerks.com

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