From 9aec608601b0291c1bdb7347afc6e74c391793bb Mon Sep 17 00:00:00 2001
From: Richard Schreiber <schreiber@rami.io>
Date: Tue, 12 May 2026 08:34:22 +0200
Subject: [PATCH] Fix checkinrules js errors

---
 .../pretixcontrol/checkin/list_edit.html      |  4 +++-
 .../js/ui/checkinrules/viz-node.vue           | 20 +++++++++----------
 2 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/pretix/control/templates/pretixcontrol/checkin/list_edit.html b/src/pretix/control/templates/pretixcontrol/checkin/list_edit.html
index dd332ac353..464bfe7012 100644
--- a/src/pretix/control/templates/pretixcontrol/checkin/list_edit.html
+++ b/src/pretix/control/templates/pretixcontrol/checkin/list_edit.html
@@ -89,7 +89,9 @@
             </button>
         </div>
     </form>
-    {{ items|json_script:"items" }}
+    {% if items %}
+        {{ items|json_script:"items" }}
+    {% endif %}
 
     {% compress js %}
         <script type="text/javascript" src="{% static "d3/d3.v6.js" %}"></script>
diff --git a/src/pretix/static/pretixcontrol/js/ui/checkinrules/viz-node.vue b/src/pretix/static/pretixcontrol/js/ui/checkinrules/viz-node.vue
index f9030aca61..dd65f0ff28 100644
--- a/src/pretix/static/pretixcontrol/js/ui/checkinrules/viz-node.vue
+++ b/src/pretix/static/pretixcontrol/js/ui/checkinrules/viz-node.vue
@@ -180,7 +180,7 @@ g
 				br
 				span(v-if="varresult !== null") {{ varresult }}
 				strong
-					| {{ op.label }} {{ rightoperand }}
+					| {{ op?.label}} {{ rightoperand }}
 			span(v-else-if="vardata && vardata.type === 'int_by_datetime'")
 				span.fa.fa-sign-in(v-if="variable.startsWith('entries_')")
 				| {{ vardata.label }}
@@ -193,21 +193,21 @@ g
 				br
 				span(v-if="varresult !== null") {{ varresult }}
 				strong
-					| {{ op.label }} {{ rightoperand }}
+					| {{ op?.label }} {{ rightoperand }}
 			span(v-else-if="vardata && variable === 'now'")
 				span.fa.fa-clock-o
 				|  {{ vardata.label }}
 				br
 				span(v-if="varresult !== null") {{ varresult }}
 				strong
-					| {{ op.label }}
+					| {{ op?.label }}
 					br
-					span(v-if="rightoperand.buildTime[0] === 'custom'")
-						| {{ df(rightoperand.buildTime[1]) }}
-					span(v-else-if="rightoperand.buildTime[0] === 'customtime'")
-						| {{ tf(rightoperand.buildTime[1]) }}
+					span(v-if="rightoperand?.buildTime[0] === 'custom'")
+						| {{ df(rightoperand?.buildTime[1]) }}
+					span(v-else-if="rightoperand?.buildTime[0] === 'customtime'")
+						| {{ tf(rightoperand?.buildTime[1]) }}
 					span(v-else)
-						| {{ TEXTS[rightoperand.buildTime[0]] }}
+						| {{ TEXTS[rightoperand?.buildTime[0]] }}
 					span(v-if="operands[2]")
 						span(v-if="operator === 'isBefore'") +
 						span(v-else) -
@@ -220,14 +220,14 @@ g
 				span(v-if="varresult !== null")  ({{ varresult }})
 				br
 				strong
-					| {{ rightoperand.objectList.map((o: any) => o.lookup[2]).join(", ") }}
+					| {{ rightoperand?.objectList.map((o: any) => o.lookup[2]).join(", ") }}
 			span(v-else-if="vardata && vardata.type === 'enum_entry_status'")
 				span.fa.fa-check-circle-o
 				| {{ vardata.label }}
 				span(v-if="varresult !== null")  ({{ varresult }})
 				br
 				strong
-					| {{ op.label }} {{ rightoperand }}
+					| {{ op?.label }} {{ rightoperand }}
 
 	g(v-if="result === false", :transform="`translate(${x + boxWidth - 15}, ${y - 10})`")
 		ellipse(fill="#fff", cx="14.685823", cy="14.318233", rx="12.140151", ry="11.55523")