school-platform/app/views/assignments/_assignment.html.erb

<div class="panel panel-danger">
  <div class="panel-heading">
    <%= assignment.name %>
  </div>
  <div class="panel-body">
    <p>
      Course: <%= link_to assignment.course.name, assignment.course %>
    </p>
    <p>
      Due at: <%= assignment.due_at %>
    </p>
    <p>
      <%= format_content(assignment.description) %>
    </p>
  </div>
  <div class="panel-footer">
    <% if current_user.assignments.include?(assignment) %>
      <%= link_to new_assignment_submission_url(assignment), class: 'btn btn-primary' do %>
        <%= fa_icon 'file', text: "New Submission" %>
      <% end %>
    <% elsif assignment.course.users.merge(CourseParticipation.teachers).include?(current_user) %>
      <%= link_to assignment_submissions_url(assignment), class: 'btn btn-primary' do %>
        <%= fa_icon 'list', text: "View Submissions" %>
      <% end %>
    <% end %>
  </div>
</div>