Question

Generally if we can create only 1 record, say 1 user at a time from the form. But what if I want to create multiple users from a single form? There are no associations with other models. How can i do that?

Answer 1

You have to make a form with an array of users params .e.g

<%= from_tag '/users/create_multiple' do %>
 <%= text_field_tag "users[][name]" %>
 <%= text_field_tag "users[][name]" %>
<% end %>

In UsersController:

def create_multiple
 params[:users].each do |user|
  user = User.create(user)
 end
end

You can add validation code as per your wishes,
visit here how to pass form params for multiple records http://guides.rubyonrails.org/form_helpers.html#basic-structures