From 032276b44d5b37be489980b51f9f9c4f615408ec Mon Sep 17 00:00:00 2001
From: Klaus Zerwes <zerwes@users.noreply.github.com>
Date: Mon, 15 Sep 2025 11:04:37 +0200
Subject: [PATCH 1/2] mail notifications : set undefined PREVIOUS*HARDSTATE to
 UNKNOWN for state_mapping

---
 notifications/templates/mail/bulk.html    | 2 +-
 notifications/templates/mail/summary.html | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/notifications/templates/mail/bulk.html b/notifications/templates/mail/bulk.html
index c8515ed361a..6d9ba6fcf52 100644
--- a/notifications/templates/mail/bulk.html
+++ b/notifications/templates/mail/bulk.html
@@ -29,7 +29,7 @@
                         <td style="padding: 0; vertical-align: middle;">
                             <div class="mobile_event_marker_bulk"
                                  style="{{ macros.event_marker_bulk_style() }};
-                                        {% if service_notification %} {{ state_mapping[entry.PREVIOUSSERVICEHARDSTATE] }} {% else %} {{ state_mapping[entry.PREVIOUSHOSTHARDSTATE] }} {% endif %};
+                                        {% if service_notification %} {{ state_mapping[(entry.PREVIOUSSERVICEHARDSTATE|default('UNKNOWN'))] }} {% else %} {{ state_mapping[(entry.PREVIOUSHOSTHARDSTATE|default('UNKNOWN'))] }} {% endif %};
                                         display: inline-block;
                                         /* Inline block to respect width */">
                                 {% if service_notification %}
diff --git a/notifications/templates/mail/summary.html b/notifications/templates/mail/summary.html
index 9947774677f..95ac7c678c5 100644
--- a/notifications/templates/mail/summary.html
+++ b/notifications/templates/mail/summary.html
@@ -33,7 +33,7 @@
                             <tr>
                                 <td style=" line-height: 45px; padding: 0; ">
                                     <div style="{{ macros.event_marker_style() }};
-                                                {% if service_notification %} {{ state_mapping[data.PREVIOUSSERVICEHARDSTATE] }} {% else %} {{ state_mapping[data.PREVIOUSHOSTHARDSTATE] }} {% endif %};
+                                                {% if service_notification %} {{ state_mapping[(data.PREVIOUSSERVICEHARDSTATE|default('UNKNOWN'))] }} {% else %} {{ state_mapping[(data.PREVIOUSHOSTHARDSTATE|default('UNKNOWN'))] }} {% endif %};
                                                 display: inline-block;
                                                 /* Inline block to respect width */">
                                         {% if service_notification %}

From 543ac6788111c8c12d107cf17d17e18ca1752325 Mon Sep 17 00:00:00 2001
From: Klaus Zerwes <zerwes@users.noreply.github.com>
Date: Mon, 15 Sep 2025 11:56:49 +0200
Subject: [PATCH 2/2] mail notifications : set undefined PREVIOUS*HARDSTATE to
 NULL for short name in order to reflect the undefined state

---
 notifications/templates/mail/bulk.html    | 4 ++--
 notifications/templates/mail/summary.html | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/notifications/templates/mail/bulk.html b/notifications/templates/mail/bulk.html
index 6d9ba6fcf52..a5c99a1da45 100644
--- a/notifications/templates/mail/bulk.html
+++ b/notifications/templates/mail/bulk.html
@@ -33,9 +33,9 @@
                                         display: inline-block;
                                         /* Inline block to respect width */">
                                 {% if service_notification %}
-                                    {{ entry.PREVIOUSSERVICEHARDSTATE[:4] }}
+                                    {{ (entry.PREVIOUSSERVICEHARDSTATE|default("NULL"))[:4] }}
                                 {% else %}
-                                    {{ entry.PREVIOUSHOSTHARDSTATE[:4] }}
+                                    {{ (entry.PREVIOUSHOSTHARDSTATE|default("NULL"))[:4] }}
                                 {% endif %}
                             </div>
                         </td>
diff --git a/notifications/templates/mail/summary.html b/notifications/templates/mail/summary.html
index 95ac7c678c5..49e23163192 100644
--- a/notifications/templates/mail/summary.html
+++ b/notifications/templates/mail/summary.html
@@ -37,9 +37,9 @@
                                                 display: inline-block;
                                                 /* Inline block to respect width */">
                                         {% if service_notification %}
-                                            {{ data.PREVIOUSSERVICEHARDSTATE[:4] }}
+                                            {{ (data.PREVIOUSSERVICEHARDSTATE|default("NULL"))[:4] }}
                                         {% else %}
-                                            {{ data.PREVIOUSHOSTHARDSHORTSTATE[:4] }}
+                                            {{ (data.PREVIOUSHOSTHARDSHORTSTATE|default("NULL"))[:4] }}
                                         {% endif %}
                                     </div>
                                 </td>