Here is a snippet of the code from one of my projects.
This same code is in both my new and edit forms.
<% form_for(@field) do |f| %>
...
<p>
<%= f.label :lookup_category_id %><br />
<%=
@lookup_categories = LookupCategory.find(:all, :order =>
"lookup_category_name")
f.collection_select(:lookup_category_id,
@lookup_categories, :id, :lookup_category_name, :prompt=>"Select a
Lookup category (optional)")
%>
</p>
...
<% end %>
On May 28, 7:09 am, Mike75 <[email protected]> wrote:
> well..
> Litwin, i've tried it..
> and it shows the drop down list..
> but not with the saved data in the selected option, instead, it shows
> the default value, the one on top of the list.
>
> it supposed to work just like that?
> is there something i've done wrong, then?
>
> On May 28, 1:11 am, "E. Litwin" <[email protected]> wrote:
>
> > Have you tried using the same collection_select statement on the edit
> > page? It works for me.
>
> > On May 27, 6:24 am, Mike75 <[email protected]> wrote:
>
> > > hi..
> > > I'm having a problem with an editing view to show a dropdown list
> > > withselectedvalue.
>
> > > my tables are as followed
> > > product table : id | Name | Price | Country_id
> > > country table : id | CountryName
>
> > > on the product new.htm.erb, I've got the list like this
> > > <%= collection_select ("product", "Country_id",
> > > @country, :id, :CountryName) %>
> > > and it generates <select> html tags and saves good too.
>
> > > now, I'd like to edit the product on the edit.html.erb with the same
> > > dropdown list with
> > > collected product.Country_id.
>
> > > <option value = "{product.Country_id}"selected> CountryName</option>
>
> > > anyone knows how to to this? I've tried the rails.api way of doing
> > > it.. such as
>
> > > select(:product, :Country_id, country.find(:all).collect {|c|
> > > [ c.CountryName, c.id ] }, {:include_blank => 'None'})
> > > and it didn't work..
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