wrestlingdev.com/app/views/wrestlers/_form.html.erb

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

      <ul>
      <% @wrestler.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 can? :manage, @wrestler.tournament %> 
        <div class="field">
          <%= f.label 'School' %><br>
          <%= f.collection_select :school_id, @school.tournament.schools, :id, :name %>
        </div>
  <% else %>
    <%= f.hidden_field :school_id, :value => @school.id %>
  <% end %>
  <div class="field">
    <%= f.label 'Weight Class' %><br>
    <%= f.collection_select :weight_id, @weights, :id, :max %>

  </div>
  <div class="field">
    <%= f.label "Season Wins" %><br>
    <%= f.number_field :season_win %>
  </div>
  <div class="field">
    <%= f.label "Season Losses" %><br>
    <%= f.number_field :season_loss %>
  </div>

  <div class="field">
    <%= f.label "Seed Criteria" %><br>
    <%= f.text_field :criteria %>
  </div>
  <div class="field">
    <%= f.label "Check box if extra" %> <%= f.check_box :extra %>
  </div>
</br>
</br>
  <div class="actions">
    <%= f.submit :class=>"btn btn-success"%>
  </div>
<% end %>

<% if can? :manage, @wrestler.tournament %> 
<br><br>
<h3>Swap Bracket Position</h3>
  <%= form_for(Wrestler.new, url: swap_wrestlers_path(@wrestler.tournament)) do |f| %>
      <%= f.hidden_field :originalId, :value => @wrestler.id %>
      <div class="field">
        <%= f.label 'Swap With' %><br>
        <%= f.collection_select :swapId, @wrestler.weight.wrestlers, :id, :name %>
      </div>
      <br>
      <%= submit_tag "Swap", :class=>"btn btn-success"%>
  <% end %>  
<% end %>