filter empty values

app/views/entries/index.html.erb

@@ -35,15 +35,17 @@
           </tr>
           </thead>
           <tbody>
-          <% ["propädeutikum", "fachspezifikum"].each do |typ| %>
-            <% ["Praktikum", "Selbsterfahrung", "Supervision"].each do |art| %>
+          <% Entry::PRAKTIKUMSTYPEN.each do |typ| %>
+            <%  Entry::ENTRY_ARTEN.each do |art| %>
               <% remaining = @remaining_minutes_matrix.dig(typ, art) %>
               <% spent = @spent_minutes_matrix.dig(typ, art) %>
+              <% next if spent.blank? %>
               <% soll = current_user.required_hours_matrix.dig(typ, art) %>
               <% weekly = current_user.weekly_target_matrix.dig(typ, art) %>
               <% ende = @estimated_end_by_typ_art.dig(typ, art) %>
 
-              <% if remaining.present? || soll.present? || weekly.present? %>
+
+              <% if (remaining.present? || soll.present? || weekly.present?)  %>
                 <tr>
                   <td><%= typ.capitalize %></td>
                   <td><%= art.capitalize %></td>