Thanks for your reply,

I've seen that cast, but when I add another form for another children the
HTML shows this

<input id="user_children_attributes_0_name" maxlength="255"
name="user[children_attributes][0][name]" type="text">

so it's not increasing and it will only save the first child

and now I'm trying what the cast says

_children.html.erb

<%= f.semantic_fields_for "user[children][]", user do |children| %>
.....
<% end %>

and I get this

undefined local variable or method `user'


It's maybe something I'm not seeing, I'm starting with rails and I hope
someone can help me

Thanks

On Wed, Oct 26, 2011 at 11:06 AM, Colin Law <[email protected]> wrote:

> On 26 October 2011 16:53, JavierQQ <[email protected]> wrote:
> > Hello,
> >
> > I'm having some trouble with forms, my app allows to enter data by
> > using a multi-step form that has 7 steps.
> > There are 3 steps that may let the user to add 1 form, for example
> > there's a step called "children"
> > and that children has the following fields:
> >  * name
> >  * age
> >  * gender
> > but one father may have more than 1 child and I'm adding another form
> > with ajax by following this
> >
> http://stackoverflow.com/questions/4812003/adding-fields-dynamically-in-a-nested-model-form-in-rails-3
> >
> > in the "invite" partial
> > _invite.html.erb
> > <%= fields_for "user[invites_attributes][]", invite do |i| %>
> >  <li>
> >    <%= link_to("Remove", "#delete", :class => "delete-invite") %>
> >    <%= i.label :full_name, "Full Name" %>
> >    <%= i.text_field :full_name %>
> >    <%= i.label :email, "Email Address" %>
> >    <%= i.text_field :email %>
> >  </li>
> > <% end %>
> >
> > I'm having some troubles with the first line: <%= fields_for
> > "user[invites_attributes][]", invite do |i| %>
> > What is the correct usage of that? I'm using formtastic and when I
> > made that line but with my fields
> >
> >     <%= f.semantic_fields_for ("user[children_attributes][]", user)
>
> You should not have a space between semantic_fields_for and (.  That
> is ruby syntax.  Whether it fixes you problem is another matter.
>
> Colin
>
> > do |fes| %>
> >
> > and I get this error
> >
> >  ...............  unexpected ',', expecting ')'
> >
> > I hope someone can help
> >
> > Thanks in advance
> >
> > --
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> >
>
>
>
> --
> gplus.to/clanlaw
>
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