<%= form_for(@mat) do |f| %>
  <% if @mat.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@mat.errors.count, "error") %> prohibited this mat from being saved:</h2>

      <ul>
      <% @mat.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :name %><br>
    <%= f.text_field :name %>
  </div>

<% if @tournament_field %>
      <%= f.hidden_field :tournament_id, :value => @tournament_field %>
<% else %>
    <div class="field">
      <%= f.label 'Tournament' %><br>
      <%= f.collection_select :tournament_id, Tournament.all, :id, :name %>
    </div>
<% end %>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>
