Retrain a classifier head from verified identifications, and start the run from the job form

ami/base/pagination.py

@@ -29,3 +29,15 @@ def _get_project(self):
         if hasattr(view, "get_active_project"):
             return view.get_active_project()
         return None
+
+
+class TrainingDataPagination(LimitOffsetPagination):
+    """
+    Paging for embedding rows, which are far bigger than a normal API row.
+
+    A 1024-dimension vector serialises to roughly 20 KB of JSON, so the platform default of
+    10 is uselessly small and an unbounded limit would return hundreds of megabytes.
+    """
+
+    default_limit = 200
+    max_limit = 1000

ami/base/permissions.py

@@ -198,6 +198,35 @@ def has_permission(self, request, view):
         return super().has_permission(request, view)
 
 
+class OccurrenceSetPermission(ObjectPermission):
+    """
+    Permission for the occurrence-set route, where list and create have no object yet.
+
+    Listing follows the project: anyone who may see the project may see which sets it has,
+    since only a set's name and size are exposed. Creating one is gated on the project's
+    ``create_occurrenceset`` permission. Everything else falls through to the object check,
+    which refuses a global set because it has no project to check against.
+    """
+
+    def has_permission(self, request, view):
+        from ami.main.models import Project
+
+        if view.action == "list":
+            # The project id is required for this action, so reaching here means it was
+            # given and the caller may see it.
+            return view.get_active_project() is not None
+
+        if view.action == "create":
+            # Read from the payload rather than the query string: the set names the project
+            # it will belong to, and that is the project whose permission must allow it.
+            project = Project.objects.filter(pk=request.data.get("project_id")).first()
+            if not project:
+                return False
+            return request.user.has_perm(Project.Permissions.CREATE_OCCURRENCE_SET, project)
+
+        return super().has_permission(request, view)
+
+
 class UserMembershipPermission(ObjectPermission):
     """
     Custom permission for UserProjectMembershipViewSet.

ami/jobs/migrations/0024_train_classifier_job_type.py

@@ -0,0 +1,31 @@
+# Generated by Django 4.2.10 on 2026-10-08 15:53
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("jobs", "0023_alter_job_job_type_key"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="job",
+            name="job_type_key",
+            field=models.CharField(
+                choices=[
+                    ("ml", "ML pipeline"),
+                    ("populate_captures_collection", "Populate capture set"),
+                    ("data_storage_sync", "Data storage sync"),
+                    ("regroup_events", "Regroup sessions"),
+                    ("unknown", "Unknown"),
+                    ("data_export", "Data Export"),
+                    ("post_processing", "Post Processing"),
+                    ("train_classifier", "Train classifier"),
+                ],
+                default="unknown",
+                max_length=255,
+                verbose_name="Job Type",
+            ),
+        ),
+    ]