fix(itim): dont render link if no device

!43 #69

app/itim/models/services.py

@@ -223,10 +223,13 @@ class Service(TenancyObject):
 
     def save(self, force_insert=False, force_update=False, using=None, update_fields=None):
 
-        self.config_key_variable = self.config_key_variable.lower()
+        if self.config_key_variable:
+
+            self.config_key_variable = self.config_key_variable.lower()
 
         super().save(force_insert=force_insert, force_update=force_update, using=using, update_fields=update_fields)
 
+
     def __str__(self):
 
         return self.name

app/itim/templates/itim/service.html.j2

@@ -136,8 +136,10 @@
                         {% if item.cluster %}
                         {{ item.cluster }}
                         {% else %}
+                        {% if item.device.id %}
                         <a href="{% url 'ITAM:_device_view' item.device.id %}">{{ item.device }}</a>
                         {% endif %}
+                        {% endif %}
                     </span>
                 </div>