Rails - May 2005 - Noob - ActionView::Helpers::FormOptionsHelper::select

Hi,

I''m just starting with Rails and i''m trying to do something
like this:

<%= start_form_tag :action => ''add_user'', :id =>
@social_event_group %>
<%= select ''user'', ''id'' ,
User.find_all.collect {|u| [ u.login, u.id ]
}%></p>
  <%= submit_tag "Add User" %>
<%= end_form_tag %>

and i''m doing this in the "add_user" action :

user = @params[:user]
@social_event_group.users<<User.find(user[:id])

I guess i cannot simply pass the object and have to get it from the DB 
in my controller right?!

But isn''t there a way to simply pass @params[:user_id]?! Instead of 
(@params[:user])[:id] ?!


By the way, how can i create a list with multiple selection and how can 
i see the logs for ActionMailer?

Regards,

    Nelson

Isn''t there any helper for table associations?!

One could define an attribute selecting the column to be used for 
listing purposes and code could be generated.

inEvo wrote:
> Hi,
>
> I''m just starting with Rails and i''m trying to do
something like this:
>
> <%= start_form_tag :action => ''add_user'', :id =>
@social_event_group %>
> <%= select ''user'', ''id'' ,
User.find_all.collect {|u| [ u.login, u.id ]
> }%></p>
>  <%= submit_tag "Add User" %>
> <%= end_form_tag %>
>
> and i''m doing this in the "add_user" action :
>
> user = @params[:user]
> @social_event_group.users<<User.find(user[:id])
>
> I guess i cannot simply pass the object and have to get it from the DB 
> in my controller right?!
>
> But isn''t there a way to simply pass @params[:user_id]?! Instead
of
> (@params[:user])[:id] ?!
>
>
> By the way, how can i create a list with multiple selection and how 
> can i see the logs for ActionMailer?
>
> Regards,
>
>    Nelson
>
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> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
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>

On 17-mei-2005, at 13:43, inEvo wrote:
> Isn''t there any helper for table associations?!
>
> One could define an attribute selecting the column to be used for  
> listing purposes and code could be generated.
>
I recently wrote a couple of helpers for this - checkbox_array and  
multiselect (that allow me to comfortably build habtm relationship  
edtitors - Rails handles simple selects on it''sown pretty nicely).  
They work the same as Rails built-in helpers:

checkbox_array (model_name, model_field, members_array, id_field,  
name_field, existing_collection = [], options=[])

multiselect (model_name, model_field, members_array, id_field,  
name_field, existing_collection = [], options = [])

They work the same way but I find checkobx arrays more intuitive for  
users (they usually don''t realise how a multiselect works)

However, I had to add an ActiveRecord#related_collection= method for  
all of the relationships that I have, which collects the related  
objects by ID and shifts them one by one into the collection. Which  
was kinda dissapointing, because I don''t get why we can shift into  
the collection but cannot do a simple batch assignment? The methods I  
had to define are really boilerplate and about 10 lines long - I  
expected Rails can handle that for me but no avail.
>
-- 
Julian "Julik" Tarkhanov