port to new django, AI automated

simpleforum/admin.py

@@ -1,4 +1,31 @@
 from django.contrib import admin
-from simpleforum.models import Message
 
-admin.site.register(Message)
+from .models import Message
+
+
+@admin.register(Message)
+class MessageAdmin(admin.ModelAdmin):
+    """Admin configuration for Message model."""
+
+    list_display = ("titel", "author", "creation_time")
+    list_filter = ("creation_time", "author")
+    search_fields = ("titel", "text", "author__username")
+    date_hierarchy = "creation_time"
+    ordering = ("-creation_time",)
+    readonly_fields = ("creation_time",)
+
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": ("titel", "text", "author"),
+            },
+        ),
+        (
+            "Metadata",
+            {
+                "fields": ("creation_time",),
+                "classes": ("collapse",),
+            },
+        ),
+    )