Get an array from a Rails form

Question

I need to design a form for a account resource. In that form, i need to collect some set of ids as an array in the params hash in attribute called

Answer 1

You still need a fields_for in your view, just use :relationships as the record_name then provide an object.

<%= form_for @account do |f| %>
    <%= f.text_field :name %>

    <% fields_for :relationships, @eligible_parents do |p| %>
        <%= p.check_box "relationships", nil, :value => p.object.id  %>
        <%= p.object.name %>

    <% end %>

    <%= f.submit "Submit" %>
<% end %>

Documentation here: ActionView::Helpers::FormHelper