From 860c39944f992efa7675485bd81bee1953d555ad Mon Sep 17 00:00:00 2001
From: Saria Hajjar <sariahajjar@gmail.com>
Date: Thu, 20 Feb 2020 21:26:53 +0000
Subject: [PATCH] Handle divide by zero power stats with very low values

---
 netbox/templates/dcim/device.html    | 15 ++++++++++-----
 netbox/templates/dcim/powerfeed.html |  2 +-
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/netbox/templates/dcim/device.html b/netbox/templates/dcim/device.html
index 8c457121f..ffa6d89f9 100644
--- a/netbox/templates/dcim/device.html
+++ b/netbox/templates/dcim/device.html
@@ -393,11 +393,16 @@
                                     <tr>
                                         <td style="padding-left: 20px">Leg {{ leg.name }}</td>
                                         <td>{{ leg.outlet_count }}</td>
-                                        <td>{{ leg.allocated }}</td>
-                                        <td>{{ powerfeed.available_power|divide:3 }}VA</td>
-                                        {% with phase_available=powerfeed.available_power|divide:3 %}
-                                            <td>{% utilization_graph leg.allocated|percentage:phase_available %}</td>
-                                        {% endwith %}
+                                        <td>{{ leg.allocated }}VA</td>
+                                        {% if powerfeed.available_power %}
+                                            <td>{{ powerfeed.available_power|divide:3 }}VA</td>
+                                            {% with phase_available=powerfeed.available_power|divide:3 %}
+                                                <td>{% utilization_graph leg.allocated|percentage:phase_available %}</td>
+                                            {% endwith %}
+                                        {% else %}
+                                            <td class="text-muted">&mdash;</td>
+                                            <td class="text-muted">&mdash;</td>
+                                        {% endif %}
                                     </tr>
                                 {% endfor %}
                             {% endwith %}
diff --git a/netbox/templates/dcim/powerfeed.html b/netbox/templates/dcim/powerfeed.html
index 316e0e5f0..96703792b 100644
--- a/netbox/templates/dcim/powerfeed.html
+++ b/netbox/templates/dcim/powerfeed.html
@@ -110,7 +110,7 @@
                         {% if utilization %}
                             <td>
                                 {{ utilization.allocated }}VA / {{ powerfeed.available_power }}VA
-                                {% if powerfeed.available_power > 0 %}
+                                {% if powerfeed.available_power %}
                                     {% utilization_graph utilization.allocated|percentage:powerfeed.available_power %}
                                 {% endif %}
                             </td>