From 1529687cc19cb032001d926a48ecf41bce0a0337 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Wed, 23 Sep 2026 13:31:16 +0000
Subject: [PATCH] fix(directus): ticket invoice schema follow-up

- Add the missing ticket_invoices.user_created -> directus_users FK and
  relation (ON DELETE NO ACTION, like every other user_created relation
  in the snapshot), so the acting admin on corrections/cancellations is
  a real, referentially intact relation.
- Make the ticket_orders.invoices O2M read-only in the App: documents
  must never be detached from their order (the order FK is NOT NULL, so
  a "nullify" deselect could only fail) or re-linked to another order.
- Mark the ticket_orders.invoice_number / invoice_file pointers as
  read-only with a note: they are still written and read by the bundle
  (current-document pointer, numbering, backfill) and must not be edited
  by hand. No fields or data are removed.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G9qwzY9WrCDrT5NX7zNP1E
---
 directus-cms/schema.json | 41 ++++++++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/directus-cms/schema.json b/directus-cms/schema.json
index faf0677..823aae7 100644
--- a/directus-cms/schema.json
+++ b/directus-cms/schema.json
@@ -37449,8 +37449,8 @@
         "is_generated": false,
         "generation_expression": null,
         "has_auto_increment": false,
-        "foreign_key_table": null,
-        "foreign_key_column": null
+        "foreign_key_table": "directus_users",
+        "foreign_key_column": "id"
       }
     },
     {
@@ -38875,9 +38875,9 @@
         "group": null,
         "hidden": false,
         "interface": "input",
-        "note": null,
+        "note": "Maintained automatically: number of the current invoice document (see Invoices)",
         "options": null,
-        "readonly": false,
+        "readonly": true,
         "required": false,
         "searchable": true,
         "sort": 4,
@@ -38919,11 +38919,11 @@
         "group": null,
         "hidden": false,
         "interface": "file",
-        "note": null,
+        "note": "Maintained automatically: PDF of the current invoice document (see Invoices)",
         "options": {
           "enableCreate": false
         },
-        "readonly": false,
+        "readonly": true,
         "required": false,
         "searchable": true,
         "sort": 5,
@@ -39044,12 +39044,12 @@
         "group": null,
         "hidden": false,
         "interface": "list-o2m",
-        "note": "Invoice documents issued for this order",
+        "note": "Invoice documents issued for this order — read-only: documents are never detached or deleted; use the invoice actions for corrections and cancellations",
         "options": {
           "enableCreate": false,
           "template": "{{invoice_number}} ({{type}})"
         },
-        "readonly": false,
+        "readonly": true,
         "required": false,
         "searchable": true,
         "sort": 34,
@@ -44622,6 +44622,31 @@
         "on_delete": "NO ACTION"
       }
     },
+    {
+      "collection": "ticket_invoices",
+      "field": "user_created",
+      "related_collection": "directus_users",
+      "meta": {
+        "junction_field": null,
+        "many_collection": "ticket_invoices",
+        "many_field": "user_created",
+        "one_allowed_collections": null,
+        "one_collection": "directus_users",
+        "one_collection_field": null,
+        "one_deselect_action": "nullify",
+        "one_field": null,
+        "sort_field": null
+      },
+      "schema": {
+        "table": "ticket_invoices",
+        "column": "user_created",
+        "foreign_key_table": "directus_users",
+        "foreign_key_column": "id",
+        "constraint_name": "ticket_invoices_user_created_foreign",
+        "on_update": "NO ACTION",
+        "on_delete": "NO ACTION"
+      }
+    },
     {
       "collection": "ticket_orders",
       "field": "conference",