From: Ravi Dtv <venkataravi.tdomarouthu@...>
Date: 2010-05-19T21:24:07+09:00
Subject: Re: passing values from partial to controller

Gregor Panek wrote:
> yeah that's because you pass only one parameter to the hidden_field_tag 
> so you got this:
> <input id="tags_list" name="tags_list" type="hidden" />
> 
> and your value is still nil, so you have to pass a second parameter to 
> the hidden_field_tag to set the value:
> 
>  <%=hidden_field_tag :group_name, "yourgroupname"%>
> then you got this in html
> 
> <input id="token" name="token" type="hidden" value="yourgroupname" />
> now you should get with params[:group_name] the value that you set
> 
> hope this works :)

Thanks Gregor Panek. I am able to pass the values but plz check my 
action in the controller.
 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"=>"testinggroup2",
 "commit"=>"Add to group",
 "authenticity_token"=>"MHB8Ys8vccsGwbgnsb9r5T68oqirPpW6YUscfDojZhY=",
 "id"=>"testing",
 "user"=>{"login"=>"santosh"}}


I need to get the id from login( santosh) and id from Group 
(testinggroup2)
and insert the both ids into another table.


Please help. Thank you.

def addfriendtogroups
 @f=User.find_by_login(params[:login]).id
   @g=Group.find_by_group_name(params[:group_name]).id

   @addfriend=GroupFriend.create(:user_id => current_user.id ,
   :group_id => @g,:friend_id => @f)

   respond_to do |format|

   if @addfriend.save

   flash[:notice] = "Friend added to group successfully."
  format.html {redirect_to :back}

   end

   end
 end


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