Insert a divider between still-out dry hires and actually upcoming events on rigboard

RIGS/templates/event_table.html

@@ -1,3 +1,4 @@
+{% load next from filters %}
 {% comment %}<div class="d-none d-md-block">{% endcomment %}
 <div class="table-responsive">
     <table class="table mb-0">
@@ -90,9 +91,13 @@
                 {% endif %}
             </td>
         </tr>
+        {# Insert a divider between still-out dry hires and actually upcoming events #}
+        {% with next_element=events|next:forloop.counter0 %}
+            {% if event.dry_hire == True and next_element.dry_hire == False %}<tr><td colspan="4"><hr></td><tr>{%endif%}
+        {% endwith %}
         {% empty %}
         <tr class="bg-warning">
-            <td colspan="6">No events found</td>
+            <td colspan="4">No events found</td>
         </tr>
         {% endfor %}
         </tbody>

RIGS/templatetags/filters.py

@@ -149,3 +149,14 @@ def get_json_element(value, element):
 def get_item(dictionary, key):
     if(type(dictionary) is dict):
         return dictionary.get(key)
+
+@register.filter
+def next(alist, current_index):
+    """
+    Returns the next element of the list using the current index if it exists.
+    Otherwise returns an empty string.
+    """
+    try:
+        return alist[int(current_index) + 1] # access the next element
+    except:
+        return '' # return empty string in case of exception