12117 remove clone button if no params

netbox/templates/dcim/cable.html

@@ -4,9 +4,6 @@
 {% load perms %}
 {% load plugins %}
 
-{# cable does not support the default clone control #}
-{% block clone_button %}{% endblock clone_button %}
-
 {% block content %}
   <div class="row">
     <div class="col col-md-6">

netbox/templates/generic/object.html

@@ -60,23 +60,15 @@ Context:
       {# Extra buttons #}
       {% block extra_controls %}{% endblock %}
 
-      {% block clone_button %}
       {% if request.user|can_add:object %}
         {% clone_button object %}
       {% endif %}
-      {% endblock clone_button %}
-
-      {% block edit_button %}
       {% if request.user|can_change:object %}
         {% edit_button object %}
       {% endif %}
-      {% endblock edit_button %}
-
-      {% block delete_button %}
       {% if request.user|can_delete:object %}
         {% delete_button object %}
       {% endif %}
-      {% endblock delete_button %}
 
     </div>
     <div class="control-group">

netbox/utilities/templates/buttons/clone.html

@@ -1,3 +1,5 @@
+{% if url %}
 <a href="{{ url }}" class="btn btn-sm btn-success" role="button">
     <i class="mdi mdi-content-copy" aria-hidden="true"></i>&nbsp;Clone
 </a>
+{% endif %}

netbox/utilities/templatetags/buttons.py

@@ -20,6 +20,8 @@ def clone_button(instance):
     param_string = prepare_cloned_fields(instance).urlencode()
     if param_string:
         url = f'{url}?{param_string}'
+    else:
+        url = None
 
     return {
         'url': url,