Rails Sub-resources Routing

README.md

person has_many :jokes joke belongs_to :person

_form.html.erb

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

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

  <div class="field">
    <%= f.label :body %><br>
    <%= f.text_area :body %>
  </div>
  <%= f.hidden_field :person_id %>

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

index.html.erb

<h1>Listing jokes</h1>

<table>
  <thead>
    <tr>
      <th>Body</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @jokes.each do |joke| %>
      <tr>
        <td><%= joke.body %></td>
        <!-- Errors begin here -->
        <td><%= link_to 'Show', person_joke_path(joke) %></td> 
        <td><%= link_to 'Edit', edit_person_joke_path(joke) %></td>
        <td><%= link_to 'Destroy', joke, method: :delete, data: { confirm: 'Are you sure?' } %></td>
        <!-- Errors end here -->
      </tr>
    <% end %>
  </tbody>
</table>

<br>

<%= link_to 'New Joke', new_person_joke_path %>