First, the comparison between params[:new_member] and nil should use
"=="
if nil == params[:new_member]
On Mar 26, 1:20 pm, Hiro <[email protected]> wrote:
> Hi everybody,
>
> Maybe this is a sort of newbie question but I've been trying to solve
> it for several days without a solution.
>
> Basically what I want to do is to pass a collection from the view to
> my controller. I paste here the relevant part of both.
>
> Controller:
>
> @member=Member.find(:all)
>
> if params[:new_member]=nil
> @list=[]
> @list.push(Member.new)
> else
> @list=params['list']
> @list.push(Member.find(params[:new_member]))
> end
>
> View:
>
> Inside a form that redirects to the controller
>
> <select name="new_member">
> <%[email protected] do |member|%>
> <option value="<%=member.id%>" ><%=member.name></option>
> <%end%>
> </select>
>
> <%=submit_tag("Add")%>
>
> <%= hidden_field "list", @list %> # [1]
>
> [1] Here's the problem. The error I got is
>
> "undefined method `push' for {"#<User:
> 0xb7086210>"=>""}:HashWithIndifferentAccess"
>
> But more important in parameters[error log]:
>
> ""list"=>{"#<User:0xb7086210>"=>""}}"
>
> It means that the params['list'] value is taken as @list.name [that is
> just garbage]
>
> I Hope someone can help me! Thanks!
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