DVGM/app/views/grades/index_student.html.erb

<p data-search-info></p>

<table class="w3-table w3-striped w3-bordered" style="margin: auto">
  <tr>
    <th>Lecturer</th>
    <th>Lecture</th>
    <th>Grade</th>
    <th>Comment</th>
  </tr>
 
  <% @grades.each do |grade| %>
    <tr>
      <td><%= grade.lecture.lecturer.login %></td>
      <td><%= grade.lecture.name %></td>
      <td><%= grade.grade %></td>
      <td>
      <% if grade.comment %>
        <%= grade.comment.html_safe %>
      <% end %>
      </td>
      <td><%= link_to 'Comment', edit_grade_path(grade), :class => "w3-button w3-light-blue" %></td>
    </tr>
  <% end %>
</table>
<%= form_tag(grades_url, method: "get", class: "w3-margin") do %>
  <div class="w3-right" style="width: 10%">
  <%= submit_tag("Filter", class: "w3-button w3-light-blue") %>
  </div>
  <%= text_field_tag(:lecturer, "", class: "w3-input w3-border w3-round", placeholder: "Filter by lecturer...", style: "width: 90%") %>
<% end %>