pokemon-couture/lib/pokemon_couture_web/templates/clothes/index.html.eex

<h1>Listing Clothes</h1>
<%= for {shop, map_of_clothes_by_type} <- @clothes_map do %>
  <h2> <%= shop %></h2>
  <%= for {type, map_of_clothes_by_name} <- map_of_clothes_by_type do %>
    <h3> <%= type %></h3>
    <table>
      <thead>
        <tr>
          <th>Name</th>
          <th>Color</th>
          <th>Game</th>
          <th></th>
        </tr>
      </thead>
      <tbody>
    <%= for {_name, list_of_clothes} <- map_of_clothes_by_name do %>
      <%= for clothes <- list_of_clothes do %>
        <tr>
          <td><%= clothes.name %></td>
          <td><%= clothes.color %></td>
          <td><%= clothes.game %></td>

          <td>
            <span><%= link "Show", to: Routes.clothes_path(@conn, :show, clothes) %></span>
          </td>
        </tr>
      <% end %>
    <% end %>
      </tbody>
    </table>
  <% end %>
<% end %>