From 4cc8a4e2696fdf2d4743fbe9bb83c41465987f82 Mon Sep 17 00:00:00 2001
From: Arkadiusz Kwasigroch <arkadiusz.kwasigroch@rhesis.ai>
Date: Tue, 25 Aug 2026 17:29:10 +0200
Subject: [PATCH] refactor(backend): extract experiment crud module

Continues the incremental split of the crud monolith. Experiment moves to
its own module; the router switches to a direct submodule import. Pure
move -- no logic changes.
---
 .../src/rhesis/backend/app/crud/__init__.py   | 23 ------------
 .../src/rhesis/backend/app/crud/experiment.py | 35 +++++++++++++++++++
 .../rhesis/backend/app/routers/experiments.py |  3 +-
 3 files changed, 37 insertions(+), 24 deletions(-)
 create mode 100644 apps/backend/src/rhesis/backend/app/crud/experiment.py

diff --git a/apps/backend/src/rhesis/backend/app/crud/__init__.py b/apps/backend/src/rhesis/backend/app/crud/__init__.py
index ddee4a03f7..8dc541d37c 100644
--- a/apps/backend/src/rhesis/backend/app/crud/__init__.py
+++ b/apps/backend/src/rhesis/backend/app/crud/__init__.py
@@ -103,29 +103,6 @@ def delete_endpoint(
     )
 
 
-# Experiment CRUD
-def get_experiments(
-    db: Session,
-    skip: int = 0,
-    limit: int = 10,
-    sort_by: str = "created_at",
-    sort_order: str = "desc",
-    filter: str | None = None,
-    organization_id: str = None,
-    user_id: str = None,
-) -> List[models.Experiment]:
-    return (
-        QueryBuilder(db, models.Experiment)
-        .with_related(include(models.Experiment.project))
-        .with_organization_filter(organization_id)
-        .with_visibility_filter(user_id)
-        .with_odata_filter(filter)
-        .with_sorting(sort_by, sort_order)
-        .with_pagination(skip, limit)
-        .all()
-    )
-
-
 # TestSet CRUD
 def get_test_set(
     db: Session, test_set_id: uuid.UUID, organization_id: str = None, user_id: str = None
diff --git a/apps/backend/src/rhesis/backend/app/crud/experiment.py b/apps/backend/src/rhesis/backend/app/crud/experiment.py
new file mode 100644
index 0000000000..22ac10e73f
--- /dev/null
+++ b/apps/backend/src/rhesis/backend/app/crud/experiment.py
@@ -0,0 +1,35 @@
+"""CRUD operations for experiments.
+
+Part of the incremental split of the ``crud`` monolith: ``crud/__init__.py`` still holds
+the bulk of the functions, and per-entity modules like this one take over as the code
+around them is touched -- see ``apps/backend/AGENTS.md``'s crud-layout rule.
+"""
+
+from typing import List
+
+from sqlalchemy.orm import Session
+
+from rhesis.backend.app import models
+from rhesis.backend.app.utils.query_utils import QueryBuilder, include
+
+
+def get_experiments(
+    db: Session,
+    skip: int = 0,
+    limit: int = 10,
+    sort_by: str = "created_at",
+    sort_order: str = "desc",
+    filter: str | None = None,
+    organization_id: str = None,
+    user_id: str = None,
+) -> List[models.Experiment]:
+    return (
+        QueryBuilder(db, models.Experiment)
+        .with_related(include(models.Experiment.project))
+        .with_organization_filter(organization_id)
+        .with_visibility_filter(user_id)
+        .with_odata_filter(filter)
+        .with_sorting(sort_by, sort_order)
+        .with_pagination(skip, limit)
+        .all()
+    )
diff --git a/apps/backend/src/rhesis/backend/app/routers/experiments.py b/apps/backend/src/rhesis/backend/app/routers/experiments.py
index b0c640f1d0..d5d9cde569 100644
--- a/apps/backend/src/rhesis/backend/app/routers/experiments.py
+++ b/apps/backend/src/rhesis/backend/app/routers/experiments.py
@@ -24,6 +24,7 @@
 from rhesis.backend.app.auth.principal import resolve_principal_from_request
 from rhesis.backend.app.auth.rbac import authorize_object, project_id_from_scope
 from rhesis.backend.app.auth.user_utils import require_current_user_or_token
+from rhesis.backend.app.crud import experiment as experiment_crud
 from rhesis.backend.app.crud.project import get_project
 from rhesis.backend.app.crud.test_run import get_test_runs
 from rhesis.backend.app.dependencies import (
@@ -81,7 +82,7 @@ def list_experiments(
     belonging to other users are excluded.
     """
     organization_id, user_id = tenant_context
-    rows = crud.get_experiments(
+    rows = experiment_crud.get_experiments(
         db,
         skip=skip,
         limit=limit,