One model, two registrations, one form

Hi, how can i register two rows of the same model in one form?

What, exactly, do you mean by "register" ?

The most direct way is to forget Rails and use HTML with or without ActionView::Helpers::FormTagHelper.

There is also the nested form setup, but your objects will need a common parent. Can you sketch out your use-case, including any related models? There may be a simple solution that your question doesn't trigger in those of us who have read it.

Walter

Try to describe it more clearly.
Let me give you an example scenario:
Model is user. Where you want to register multiple users in same form. Simple RHTML/HTML to display form and button to clone the form below. You can regenerate same html with javascript and name the text_field with index like this
HTML

<%= text_field_tag "user[0][name]" %>.
Each time you clone the form increase index+1 in your javascript function. When you submit a form you will receive hash with all users details. **js function would be like** function clone_form(){ var count = parseInt($('count').value); count = count+1; $('count').value = count; var fields = '
<input type="text" id= "user_'+count+'_name" name="user['+count+'][name]"
' $('user_wrapper').insert(fields); }

Hope this will help?