select_tag values from model?

rubyonrails-talk
1

Hello,

I have a form [using start_form_tag] with a select_tag. I need to populate the values [id and name] from a model. So far all the examples for populating values of select box from database uses form_for and form.collection_select method.

Is there a similar way to do that for from_tag and select_tag?

I am happy atleast if I get a method to pass a name and id to the select_tag, so that the display is name and id is posted.

regards,

raj

2

See following for detailed doc:

Here is an example:

<%= select("object","selection",[option1, option2,...], {}, {:class => "class"}) %>

Should give you a drop-down with the current value of @object.selection selected.

Help that helps

3

Thanks a lot for your reply, Kim.

<%= select("object","selection",[option1, option2,...], {}, {:class => "class"}) %>

I want the dropdown for a model less form. So I do not have an "object". I did solve this by a an ugly way.

my form is:

<%= form_tag :action => :agent_call_list%>   <%= @agent = Agent.find (:all, :order => "name")         collection_select("blah", :agent_id, @agent, :id, :name) -%>    <%= submit_tag -%> <%= end_form_tag %>

in my controller, I give:

   params['agent_id'] = params['blah']['agent_id'] if params.has_key?("blah")

params['agent_id'] is used by other forms and that's the place I expect the value to be. So I check if params['blah']['agent_id'] is defined and if so, I copy it's value to params['agent_id']

Ugly, but works. Though I would have preferred the value from the form in params['agent_id']

Now if only I can select a particular value in my drop down list.

raj