Closes #415: Added an expand/collapse toggle button to the prefix list

netbox/templates/ipam/prefix_list.html

@@ -6,6 +6,15 @@
 
 {% block content %}
 <div class="pull-right">
+    <a href="{% url 'ipam:prefix_list' %}{% querystring_toggle request expand='on' %}" class="btn btn-default">
+        {% if 'expand' in request.GET %}
+            <span class="fa fa-chevron-right" aria-hidden="true"></span>
+            Collapse all
+        {% else %}
+            <span class="fa fa-chevron-down" aria-hidden="true"></span>
+            Expand all
+        {% endif %}
+    </a>
     {% if perms.ipam.add_prefix %}
 		<a href="{% url 'ipam:prefix_add' %}" class="btn btn-primary">
 			<span class="fa fa-plus" aria-hidden="true"></span>