_submissions_table_sorting_links.html.erb

  <tr>
    <th>
    </th>
    <th class="<%="ap_sorting_by" if (sort_by == 'group_name')%>
                <%="ap_sorting_by_desc" if (sort_by == 'group_name' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.group_name"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'group_name',
              :desc => (sort_by == 'group_name' && desc.blank?) %>
    </th>

    <th class="<%="ap_sorting_by" if (sort_by == 'repo_name')%>
                <%="ap_sorting_by_desc" if (sort_by == 'repo_name' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.repository"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'repo_name',
              :desc => (sort_by == 'repo_name' && desc.blank?) %>
    </th>

    <th class="<%="ap_sorting_by" if (sort_by == 'revision_timestamp')%>
                <%="ap_sorting_by_desc" if (sort_by == 'revision_timestamp' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.commit_date"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'revision_timestamp',
              :desc => (sort_by == 'revision_timestamp' && desc.blank?) %>
    </th>

    <th class="<%="ap_sorting_by" if (sort_by == 'marking_state')%>
                <%="ap_sorting_by_desc" if (sort_by == 'marking_state' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.marking_state"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'marking_state',
              :desc => (sort_by == 'marking_state' && desc.blank?) %>
    </th>

    <th class="<%="ap_sorting_by" if (sort_by == 'grace_credits_used')%>
                <%="ap_sorting_by_desc" if (sort_by == 'grace_credits_used' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.grace_credits_used"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'grace_credits_used',
              :desc => (sort_by == 'grace_credits_used' && desc.blank?) %>
    </th>

    <th class="<%="ap_sorting_by" if (sort_by == 'total_mark')%>
                <%="ap_sorting_by_desc" if (sort_by == 'total_mark' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.final_grade"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'total_mark',
              :desc => (sort_by == 'total_mark' && desc.blank?) %>
    </th>
    <th class="<%="ap_sorting_by" if (sort_by == 'section')%>
    	        <%="ap_sorting_by_desc" if (sort_by == 'section' && !desc.blank?)%>">
      <%= link_to I18n.t("browse_submissions.section"),
              :id => assignment.id,
              :filter => filter,
              :page => page,
              :per_page => per_page,
              :sort_by => 'section',
              :desc => (sort_by == 'section' && desc.blank?) %>
    </th>
    <th>
      <%= I18n.t("browse_submissions.can_begin_grading") %>
    </th>
  </tr>