Fix RelatedLink uuid errors on save/change

apps/iiif/manifests/admin.py

@@ -1,6 +1,7 @@
 """Django admin module for maninfests"""
 from django.contrib import admin
 from django.http import HttpResponseRedirect
+from django.http.request import HttpRequest
 from django.urls.conf import path
 from import_export import resources, fields
 from import_export.admin import ImportExportModelAdmin
@@ -35,6 +36,7 @@ class Meta: # pylint: disable=too-few-public-methods, missing-class-docstring
 
 class RelatedLinksInline(admin.TabularInline):
     model = RelatedLink
+    exclude = ("id",)
     fields = (
         "link",
         "data_type",

apps/iiif/manifests/migrations/0059_alter_relatedlink_id.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.12 on 2023-12-05 19:41
+
+from django.db import migrations, models
+import uuid
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("manifests", "0058_alter_relatedlink_format_and_data_type"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="relatedlink",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4, editable=False, primary_key=True, serialize=False
+            ),
+        ),
+    ]

apps/iiif/manifests/models.py

@@ -368,7 +368,7 @@ class Note(models.Model):
 
 class RelatedLink(models.Model):
     """ Links to related resources """
-    id = models.UUIDField(primary_key=True, default=uuid4)
+    id = models.UUIDField(primary_key=True, default=uuid4, editable=False)
     link = models.CharField(max_length=255)
     data_type = models.CharField(
         max_length=255,