From: Ravi Dtv <venkataravi.tdomarouthu@...>
Date: 2010-05-19T20:42:26+09:00
Subject: Re: passing values from partial to controller

Gregor Panek wrote:
> Hi,
> 
> I think your problem is this line:
> @g=Group.find_by_group_name(params[:group_name]).id
> 
> you want to pass the params :group_name which are nil because in your 
> form you don't pass the :group_name to your controller:
> 
> <% form_tag (:controller => "users" , :action => "addfriendtogroups")
> do %>
> 
>        Add friend:
>         <%= text_field_with_auto_complete :user, 'login', {:size =>
> 20}, {:tokens => ','} %>
> 
>            <%= submit_tag "Add to group", :class =>
> "submit_input_button rounded_corner" %>
> <% end %>
> 
> So pass your :group_name trough a hidden field to your controller
> 
> hidden_field
> 
> 
> Am 19.05.2010 um 13:07 schrieb Ravi Dtv:




I tried with a hidden field
<% form_tag (:controller => "users" , :action => "addfriendtogroups") do 
%>

    Add friend:
       <%= text_field_with_auto_complete :user, 'login', {:size => 20}, 
{:tokens => ','} %>
    <%= hidden_field_tag :group_name %>
            <%= submit_tag "Add to group", :class => 
"submit_input_button rounded_corner" %>
<% end %>

but it still  a nil value.

The error :



 RuntimeError in UsersController#addfriendtogroups

Called id for nil, which would mistakenly be 4 -- if you really wanted 
the id of nil, use object_id


Request

Parameters:

{"group_name"=>"",
 "commit"=>"Add to group",
 "authenticity_token"=>"MHB8Ys8vccsGwbgnsb9r5T68oqirPpW6YUscfDojZhY=",
 "id"=>"testing",
 "user"=>{"login"=>"santosh"}}

where 'testing' is current user login, santosh is friend, and my 
group_name is passing null value.

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