Question

Hi i have a table where i list different values. Now i want to add a total values to my table that counts the values from each column and adds it to a column with the total value. How do I do this? And is it possible to do this in a simple way in the view, or am I bound to do it in the model? Thanks for any help!

<div class="chart-data">
  <table>
    <caption>Data</caption>
    <thead>
      <tr>
        <% statistic.column_titles.each do |column| %>
          <th><%= column %></th>
        <% end %>
        <th>Total</th>
      </tr>
    </thead>
    <tbody>      
      <% statistic.rows.each do |row| %>
        <tr>
          <th scope="row"><%= row.title %></th>
          <% row.data.each do |column| %>
            <td><%= column %></td>
            <% end %>
        </tr>
          <------- Here i want to have the code that sums the values from the columns above to form the 'Total'
      <% end %>
    </tbody>
  </table>  
</div>

Answer 1

The simple solution would be to maintain a variable that sums up the column, then use it for the total at the end.