Rails - Jul 2009 - link_to_unless_current fails when processing forms with error messages in it with restful routes

Hello,

does anyone know how to prevent the failing mechanism of
link_to_unless_current?

f.e.: I have my page navigation with

link_to_unless_current "new task", new_task_path

When I click on the link, i come to the new taks path form... And no
link is created -> ok. Then I put incorrect values in the form and
submit.

The TasksController processes the "create" action, the validation for
the ActiveRecord-model fails because of the incorrect data and the
controller renders the "new" action (and includes the error messages
for the model).

class TasksController < ApplicationController
    def create
        @task = Task.new(params[:task])

        if @task.save
            flash[:notice] = ''task was successfully created.''
            redirect_to(tasks_url)
          else
            render :action => "new"
        end
    end
end

But here the link gets created! -> Because of the difference between
the urls:

  link path = new_task_path

but

  posted path = tasks_path with :method => :post

Does anybody know how to cleanly solve this problem?

Thanks

ou can do it with link_to_unless instead of link_to_unless_current:

link_to_unless(controller_name == ''tasks'' &&
                 (action_name == ''new'' || action_name ==
''create''),
               new_task_path)


On 9 Jul., 16:24, Lp
<lampesberger.pe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hello,
>
> does anyone know how to prevent the failing mechanism of
> link_to_unless_current?
>
> f.e.: I have my page navigation with
>
> link_to_unless_current "new task", new_task_path
>
> When I click on the link, i come to the new taks path form... And no
> link is created -> ok. Then I put incorrect values in the form and
> submit.
>
> The TasksController processes the "create" action, the validation
for
> the ActiveRecord-model fails because of the incorrect data and the
> controller renders the "new" action (and includes the error
messages
> for the model).
>
> class TasksController < ApplicationController
>     def create
>         @task = Task.new(params[:task])
>
>         if @task.save
>             flash[:notice] = ''task was successfully
created.''
>             redirect_to(tasks_url)
>           else
>             render :action => "new"
>         end
>     end
> end
>
> But here the link gets created! -> Because of the difference between
> the urls:
>
>   link path = new_task_path
>
> but
>
>   posted path = tasks_path with :method => :post
>
> Does anybody know how to cleanly solve this problem?
>
> Thanks