From 26181f1d2f6896fcb9160b0b7965316ca66a9f3a Mon Sep 17 00:00:00 2001
From: Jan Range <range.jan@web.de>
Date: Fri, 14 Jun 2024 10:40:28 +0200
Subject: [PATCH] add `id` for unit

---
 docs/types/unit-definition.md                    |  5 +++++
 .../unit-definition-internal.json                | 16 ++++++++++++++++
 types/unit-definition/unit-definition.json       |  5 +++++
 types/unit-definition/unit-definition.md         |  4 ++++
 types/unit-definition/unit-definition.xsd        |  7 +++++++
 5 files changed, 37 insertions(+)

diff --git a/docs/types/unit-definition.md b/docs/types/unit-definition.md
index 2162d75..83dc4ae 100644
--- a/docs/types/unit-definition.md
+++ b/docs/types/unit-definition.md
@@ -23,6 +23,11 @@ This page provides comprehensive information about the structure and components
 ### UnitDefinition
 Represents a unit definition that is based on the SI unit system.
 
+__id__ `string`
+
+- Unique identifier of the unit definition.
+
+
 __name__ `string`
 
 - Common name of the unit definition.
diff --git a/types/unit-definition/unit-definition-internal.json b/types/unit-definition/unit-definition-internal.json
index f167495..c36b046 100644
--- a/types/unit-definition/unit-definition-internal.json
+++ b/types/unit-definition/unit-definition-internal.json
@@ -4,6 +4,22 @@
     {
       "name": "UnitDefinition",
       "attributes": [
+        {
+          "name": "id",
+          "multiple": false,
+          "is_id": false,
+          "dtypes": [
+            "string"
+          ],
+          "docstring": "Unique identifier of the unit definition.",
+          "options": [],
+          "term": null,
+          "required": false,
+          "xml": {
+            "is_attr": true,
+            "name": "id"
+          }
+        },
         {
           "name": "name",
           "multiple": false,
diff --git a/types/unit-definition/unit-definition.json b/types/unit-definition/unit-definition.json
index cad46b6..0110236 100644
--- a/types/unit-definition/unit-definition.json
+++ b/types/unit-definition/unit-definition.json
@@ -3,6 +3,11 @@
   "title": "UnitDefinition",
   "type": "object",
   "properties": {
+    "id": {
+      "title": "id",
+      "description": "Unique identifier of the unit definition.",
+      "type": "string"
+    },
     "name": {
       "title": "name",
       "description": "Common name of the unit definition.",
diff --git a/types/unit-definition/unit-definition.md b/types/unit-definition/unit-definition.md
index c464f0d..5e34f54 100644
--- a/types/unit-definition/unit-definition.md
+++ b/types/unit-definition/unit-definition.md
@@ -12,6 +12,10 @@ This data model implements a set of SI units for the representation of physical
 
 Represents a unit definition that is based on the SI unit system.
 
+- id
+  - Type: string
+  - Description: Unique identifier of the unit definition.
+  - XML: @id
 - name
   - Type: string
   - Description: Common name of the unit definition.
diff --git a/types/unit-definition/unit-definition.xsd b/types/unit-definition/unit-definition.xsd
index 4a48f62..38715e2 100644
--- a/types/unit-definition/unit-definition.xsd
+++ b/types/unit-definition/unit-definition.xsd
@@ -21,6 +21,13 @@
                 </xs:complexType>
             </xs:element>
         </xs:sequence>
+        <xs:attribute name="id" type="xs:string">
+            <xs:annotation>
+                <xs:documentation>
+                    Unique identifier of the unit definition.
+                </xs:documentation>
+            </xs:annotation>
+        </xs:attribute>
         <xs:attribute name="name" type="xs:string">
             <xs:annotation>
                 <xs:documentation>