refactor(backend/api): extract DSFA schemas + services (Step 4 — file 14 of 18)

- Create compliance/schemas/dsfa.py (161 LOC) — extract DSFACreate,
  DSFAUpdate, DSFAStatusUpdate, DSFASectionUpdate, DSFAApproveRequest
- Create compliance/services/dsfa_service.py (386 LOC) — CRUD + helpers
  + stats + audit-log + CSV export; uses domain errors
- Create compliance/services/dsfa_workflow_service.py (347 LOC) — status
  update, section update, submit-for-review, approve, export JSON, versions
- Rewrite compliance/api/dsfa_routes.py (339 LOC) as thin handlers with
  Depends + translate_domain_errors(); re-export legacy symbols via __all__
- Add [mypy-compliance.api.dsfa_routes] ignore_errors = False to mypy.ini
- Update tests: 422 -> 400 for domain ValidationError (6 assertions)
- Regenerate OpenAPI baseline (360 paths / 484 operations — unchanged)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Sharang Parnerkar
2026-04-09 19:20:48 +02:00
parent 6658776610
commit ae008d7d25
7 changed files with 1359 additions and 999 deletions

View File

@@ -0,0 +1,386 @@
# mypy: disable-error-code="arg-type,assignment,union-attr,no-any-return,call-overload,index,no-untyped-call"
"""
DSFA service — CRUD + helpers + stats + audit + CSV export.
Phase 1 Step 4: extracted from ``compliance.api.dsfa_routes``. The workflow
side (status update, section update, submit, approve, export, versions) lives
in ``compliance.services.dsfa_workflow_service``.
Module-level helpers (_dsfa_to_response, _get_tenant_id, _log_audit) are
shared by both service modules and re-exported from
``compliance.api.dsfa_routes`` for legacy test imports.
"""
import csv
import io
import json
import logging
from typing import Any, Optional
from sqlalchemy import text
from sqlalchemy.orm import Session
from compliance.domain import NotFoundError, ValidationError
from compliance.schemas.dsfa import DSFACreate, DSFAUpdate
logger = logging.getLogger(__name__)
DEFAULT_TENANT_ID = "9282a473-5c95-4b3a-bf78-0ecc0ec71d3e"
VALID_STATUSES = {"draft", "in-review", "approved", "needs-update"}
VALID_RISK_LEVELS = {"low", "medium", "high", "critical"}
JSONB_FIELDS = {
"data_categories", "recipients", "measures", "data_subjects",
"affected_rights", "triggered_rule_codes", "ai_trigger_ids",
"wp248_criteria_met", "art35_abs3_triggered", "tom_references",
"risks", "mitigations", "stakeholder_consultations", "review_triggers",
"review_comments", "ai_use_case_modules", "threshold_analysis",
"consultation_requirement", "review_schedule", "section_progress",
"metadata",
}
# ---- Module-level helpers (re-exported by compliance.api.dsfa_routes) -----
def _get_tenant_id(tenant_id: Optional[str]) -> str:
return tenant_id or DEFAULT_TENANT_ID
def _parse_arr(val: Any) -> Any:
"""Parse a JSONB array field -> list."""
if val is None:
return []
if isinstance(val, list):
return val
if isinstance(val, str):
try:
parsed = json.loads(val)
return parsed if isinstance(parsed, list) else []
except Exception:
return []
return val
def _parse_obj(val: Any) -> Any:
"""Parse a JSONB object field -> dict."""
if val is None:
return {}
if isinstance(val, dict):
return val
if isinstance(val, str):
try:
parsed = json.loads(val)
return parsed if isinstance(parsed, dict) else {}
except Exception:
return {}
return val
def _ts(val: Any) -> Any:
"""Timestamp -> ISO string or None."""
if not val:
return None
return val if isinstance(val, str) else val.isoformat()
def _get(row: Any, key: str, default: Any = None) -> Any:
"""Safe row access — returns default if key missing."""
try:
v = row[key]
return default if v is None and default is not None else v
except (KeyError, IndexError):
return default
def _dsfa_to_response(row: Any) -> dict[str, Any]:
"""Convert a DB row to a JSON-serializable dict."""
g = lambda k, d=None: _get(row, k, d) # noqa: E731
prev = g("previous_version_id")
return {
"id": str(row["id"]),
"tenant_id": row["tenant_id"],
"title": row["title"],
"description": row["description"] or "",
"status": row["status"] or "draft",
"risk_level": row["risk_level"] or "low",
"processing_activity": row["processing_activity"] or "",
"data_categories": _parse_arr(row["data_categories"]),
"recipients": _parse_arr(row["recipients"]),
"measures": _parse_arr(row["measures"]),
"approved_by": row["approved_by"],
"approved_at": _ts(row["approved_at"]),
"created_by": row["created_by"] or "system",
"created_at": _ts(row["created_at"]),
"updated_at": _ts(row["updated_at"]),
"processing_description": g("processing_description"),
"processing_purpose": g("processing_purpose"),
"legal_basis": g("legal_basis"),
"legal_basis_details": g("legal_basis_details"),
"necessity_assessment": g("necessity_assessment"),
"proportionality_assessment": g("proportionality_assessment"),
"data_minimization": g("data_minimization"),
"alternatives_considered": g("alternatives_considered"),
"retention_justification": g("retention_justification"),
"involves_ai": g("involves_ai", False),
"overall_risk_level": g("overall_risk_level"),
"risk_score": g("risk_score", 0),
"dpo_consulted": g("dpo_consulted", False),
"dpo_consulted_at": _ts(g("dpo_consulted_at")),
"dpo_name": g("dpo_name"),
"dpo_opinion": g("dpo_opinion"),
"dpo_approved": g("dpo_approved"),
"authority_consulted": g("authority_consulted", False),
"authority_consulted_at": _ts(g("authority_consulted_at")),
"authority_reference": g("authority_reference"),
"authority_decision": g("authority_decision"),
"version": g("version", 1),
"previous_version_id": str(prev) if prev else None,
"conclusion": g("conclusion"),
"federal_state": g("federal_state"),
"authority_resource_id": g("authority_resource_id"),
"submitted_for_review_at": _ts(g("submitted_for_review_at")),
"submitted_by": g("submitted_by"),
"data_subjects": _parse_arr(g("data_subjects")),
"affected_rights": _parse_arr(g("affected_rights")),
"triggered_rule_codes": _parse_arr(g("triggered_rule_codes")),
"ai_trigger_ids": _parse_arr(g("ai_trigger_ids")),
"wp248_criteria_met": _parse_arr(g("wp248_criteria_met")),
"art35_abs3_triggered": _parse_arr(g("art35_abs3_triggered")),
"tom_references": _parse_arr(g("tom_references")),
"risks": _parse_arr(g("risks")),
"mitigations": _parse_arr(g("mitigations")),
"stakeholder_consultations": _parse_arr(g("stakeholder_consultations")),
"review_triggers": _parse_arr(g("review_triggers")),
"review_comments": _parse_arr(g("review_comments")),
"ai_use_case_modules": _parse_arr(g("ai_use_case_modules")),
"section_8_complete": g("section_8_complete", False),
"threshold_analysis": _parse_obj(g("threshold_analysis")),
"consultation_requirement": _parse_obj(g("consultation_requirement")),
"review_schedule": _parse_obj(g("review_schedule")),
"section_progress": _parse_obj(g("section_progress")),
"metadata": _parse_obj(g("metadata")),
}
def _log_audit(
db: Session, tenant_id: str, dsfa_id: Any, action: str,
changed_by: str = "system", old_values: Any = None,
new_values: Any = None,
) -> None:
db.execute(
text("""
INSERT INTO compliance_dsfa_audit_log
(tenant_id, dsfa_id, action, changed_by, old_values, new_values)
VALUES
(:tenant_id, :dsfa_id, :action, :changed_by,
CAST(:old_values AS jsonb), CAST(:new_values AS jsonb))
"""),
{
"tenant_id": tenant_id,
"dsfa_id": str(dsfa_id) if dsfa_id else None,
"action": action, "changed_by": changed_by,
"old_values": json.dumps(old_values) if old_values else None,
"new_values": json.dumps(new_values) if new_values else None,
},
)
# ---- Service ---------------------------------------------------------------
class DSFAService:
"""CRUD + stats + audit-log + CSV export."""
def __init__(self, db: Session) -> None:
self.db = db
def list_dsfas(
self, tenant_id: Optional[str], status: Optional[str],
risk_level: Optional[str], skip: int, limit: int,
) -> list[dict[str, Any]]:
tid = _get_tenant_id(tenant_id)
sql = "SELECT * FROM compliance_dsfas WHERE tenant_id = :tid"
params: dict[str, Any] = {"tid": tid}
if status:
sql += " AND status = :status"; params["status"] = status
if risk_level:
sql += " AND risk_level = :risk_level"; params["risk_level"] = risk_level
sql += " ORDER BY created_at DESC LIMIT :limit OFFSET :skip"
params["limit"] = limit; params["skip"] = skip
rows = self.db.execute(text(sql), params).fetchall()
return [_dsfa_to_response(r) for r in rows]
def create(
self, tenant_id: Optional[str], body: DSFACreate,
) -> dict[str, Any]:
if body.status not in VALID_STATUSES:
raise ValidationError(f"Ungültiger Status: {body.status}")
if body.risk_level not in VALID_RISK_LEVELS:
raise ValidationError(f"Ungültiges Risiko-Level: {body.risk_level}")
tid = _get_tenant_id(tenant_id)
row = self.db.execute(
text("""
INSERT INTO compliance_dsfas
(tenant_id, title, description, status, risk_level,
processing_activity, data_categories, recipients,
measures, created_by)
VALUES
(:tenant_id, :title, :description, :status, :risk_level,
:processing_activity,
CAST(:data_categories AS jsonb),
CAST(:recipients AS jsonb),
CAST(:measures AS jsonb),
:created_by)
RETURNING *
"""),
{
"tenant_id": tid, "title": body.title,
"description": body.description, "status": body.status,
"risk_level": body.risk_level,
"processing_activity": body.processing_activity,
"data_categories": json.dumps(body.data_categories),
"recipients": json.dumps(body.recipients),
"measures": json.dumps(body.measures),
"created_by": body.created_by,
},
).fetchone()
self.db.flush()
_log_audit(
self.db, tid, row["id"], "CREATE", body.created_by,
new_values={"title": body.title, "status": body.status},
)
self.db.commit()
return _dsfa_to_response(row)
def get(self, dsfa_id: str, tenant_id: Optional[str]) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
row = self.db.execute(
text("SELECT * FROM compliance_dsfas WHERE id = :id AND tenant_id = :tid"),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not row:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
return _dsfa_to_response(row)
def update(
self, dsfa_id: str, tenant_id: Optional[str], body: DSFAUpdate,
) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text("SELECT * FROM compliance_dsfas WHERE id = :id AND tenant_id = :tid"),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
updates = body.model_dump(exclude_none=True)
if "status" in updates and updates["status"] not in VALID_STATUSES:
raise ValidationError(f"Ungültiger Status: {updates['status']}")
if "risk_level" in updates and updates["risk_level"] not in VALID_RISK_LEVELS:
raise ValidationError(f"Ungültiges Risiko-Level: {updates['risk_level']}")
if not updates:
return _dsfa_to_response(existing)
set_clauses: list[str] = []
params: dict[str, Any] = {"id": dsfa_id, "tid": tid}
for field, value in updates.items():
if field in JSONB_FIELDS:
set_clauses.append(f"{field} = CAST(:{field} AS jsonb)")
params[field] = json.dumps(value)
else:
set_clauses.append(f"{field} = :{field}")
params[field] = value
set_clauses.append("updated_at = NOW()")
sql = (
f"UPDATE compliance_dsfas SET {', '.join(set_clauses)} "
f"WHERE id = :id AND tenant_id = :tid RETURNING *"
)
old_values = {"title": existing["title"], "status": existing["status"]}
row = self.db.execute(text(sql), params).fetchone()
_log_audit(self.db, tid, dsfa_id, "UPDATE",
new_values=updates, old_values=old_values)
self.db.commit()
return _dsfa_to_response(row)
def delete(self, dsfa_id: str, tenant_id: Optional[str]) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text("SELECT id, title FROM compliance_dsfas WHERE id = :id AND tenant_id = :tid"),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
_log_audit(self.db, tid, dsfa_id, "DELETE",
old_values={"title": existing["title"]})
self.db.execute(
text("DELETE FROM compliance_dsfas WHERE id = :id AND tenant_id = :tid"),
{"id": dsfa_id, "tid": tid},
)
self.db.commit()
return {"success": True, "message": f"DSFA {dsfa_id} gelöscht"}
def stats(self, tenant_id: Optional[str]) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
rows = self.db.execute(
text("SELECT status, risk_level FROM compliance_dsfas WHERE tenant_id = :tid"),
{"tid": tid},
).fetchall()
by_status: dict[str, int] = {}
by_risk: dict[str, int] = {}
for row in rows:
s = row["status"] or "draft"
r = row["risk_level"] or "low"
by_status[s] = by_status.get(s, 0) + 1
by_risk[r] = by_risk.get(r, 0) + 1
return {
"total": len(rows), "by_status": by_status, "by_risk_level": by_risk,
"draft_count": by_status.get("draft", 0),
"in_review_count": by_status.get("in-review", 0),
"approved_count": by_status.get("approved", 0),
"needs_update_count": by_status.get("needs-update", 0),
}
def audit_log(
self, tenant_id: Optional[str], limit: int, offset: int,
) -> list[dict[str, Any]]:
tid = _get_tenant_id(tenant_id)
rows = self.db.execute(
text("""
SELECT id, tenant_id, dsfa_id, action, changed_by,
old_values, new_values, created_at
FROM compliance_dsfa_audit_log
WHERE tenant_id = :tid
ORDER BY created_at DESC LIMIT :limit OFFSET :offset
"""),
{"tid": tid, "limit": limit, "offset": offset},
).fetchall()
result: list[dict[str, Any]] = []
for r in rows:
ca = r["created_at"]
result.append({
"id": str(r["id"]),
"tenant_id": r["tenant_id"],
"dsfa_id": str(r["dsfa_id"]) if r["dsfa_id"] else None,
"action": r["action"],
"changed_by": r["changed_by"],
"old_values": r["old_values"],
"new_values": r["new_values"],
"created_at": ca if isinstance(ca, str) else (ca.isoformat() if ca else None),
})
return result
def export_csv(self, tenant_id: Optional[str]) -> str:
tid = _get_tenant_id(tenant_id)
rows = self.db.execute(
text("SELECT * FROM compliance_dsfas WHERE tenant_id = :tid ORDER BY created_at DESC"),
{"tid": tid},
).fetchall()
output = io.StringIO()
writer = csv.writer(output, delimiter=";")
writer.writerow(["ID", "Titel", "Status", "Risiko-Level", "Erstellt", "Aktualisiert"])
for r in rows:
ca = r["created_at"]
ua = r["updated_at"]
writer.writerow([
str(r["id"]), r["title"], r["status"] or "draft", r["risk_level"] or "low",
ca if isinstance(ca, str) else (ca.isoformat() if ca else ""),
ua if isinstance(ua, str) else (ua.isoformat() if ua else ""),
])
return output.getvalue()

View File

@@ -0,0 +1,347 @@
# mypy: disable-error-code="arg-type,assignment,union-attr,no-any-return,call-overload,index"
"""
DSFA workflow service — status, section update, submit, approve, export, versions.
Phase 1 Step 4: extracted from ``compliance.api.dsfa_routes``. CRUD + helpers
live in ``compliance.services.dsfa_service``.
"""
import json
import logging
from datetime import datetime, timezone
from typing import Any, Optional
from sqlalchemy import text
from sqlalchemy.orm import Session
from compliance.api.versioning_utils import get_version, list_versions
from compliance.domain import NotFoundError, ValidationError
from compliance.schemas.dsfa import (
DSFAApproveRequest,
DSFASectionUpdate,
DSFAStatusUpdate,
)
from compliance.services.dsfa_service import (
VALID_STATUSES,
_dsfa_to_response,
_get_tenant_id,
_log_audit,
)
logger = logging.getLogger(__name__)
SECTION_FIELD_MAP: dict[int, str] = {
1: "processing_description",
2: "necessity_assessment",
3: "risk_assessment",
4: "stakeholder_consultations",
5: "measures",
6: "dpo_opinion",
7: "conclusion",
8: "ai_use_case_modules",
}
class DSFAWorkflowService:
"""Status update, section update, submit, approve, export, versions."""
def __init__(self, db: Session) -> None:
self.db = db
# ------------------------------------------------------------------
# Status update
# ------------------------------------------------------------------
def update_status(
self,
dsfa_id: str,
tenant_id: Optional[str],
body: DSFAStatusUpdate,
) -> dict[str, Any]:
if body.status not in VALID_STATUSES:
raise ValidationError(f"Ungültiger Status: {body.status}")
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text(
"SELECT id, status FROM compliance_dsfas "
"WHERE id = :id AND tenant_id = :tid"
),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
params: dict[str, Any] = {
"id": dsfa_id,
"tid": tid,
"status": body.status,
"approved_at": (
datetime.now(timezone.utc)
if body.status == "approved"
else None
),
"approved_by": body.approved_by,
}
row = self.db.execute(
text("""
UPDATE compliance_dsfas
SET status = :status, approved_at = :approved_at,
approved_by = :approved_by, updated_at = NOW()
WHERE id = :id AND tenant_id = :tid
RETURNING *
"""),
params,
).fetchone()
_log_audit(
self.db, tid, dsfa_id, "STATUS_CHANGE",
old_values={"status": existing["status"]},
new_values={"status": body.status},
)
self.db.commit()
return _dsfa_to_response(row)
# ------------------------------------------------------------------
# Section update
# ------------------------------------------------------------------
def update_section(
self,
dsfa_id: str,
section_number: int,
tenant_id: Optional[str],
body: DSFASectionUpdate,
) -> dict[str, Any]:
if section_number < 1 or section_number > 8:
raise ValidationError(
f"Section must be 1-8, got {section_number}"
)
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text(
"SELECT * FROM compliance_dsfas "
"WHERE id = :id AND tenant_id = :tid"
),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
field = SECTION_FIELD_MAP[section_number]
jsonb_sections = {4, 5, 8}
params: dict[str, Any] = {"id": dsfa_id, "tid": tid}
if section_number in jsonb_sections:
value = (
body.extra
if body.extra is not None
else ([] if section_number != 4 else [])
)
params["val"] = json.dumps(value)
set_clause = f"{field} = CAST(:val AS jsonb)"
else:
params["val"] = body.content or ""
set_clause = f"{field} = :val"
# Update section_progress
progress = (
existing["section_progress"]
if existing["section_progress"]
else {}
)
if isinstance(progress, str):
progress = json.loads(progress)
progress[f"section_{section_number}"] = True
params["progress"] = json.dumps(progress)
row = self.db.execute(
text(f"""
UPDATE compliance_dsfas
SET {set_clause},
section_progress = CAST(:progress AS jsonb),
updated_at = NOW()
WHERE id = :id AND tenant_id = :tid
RETURNING *
"""),
params,
).fetchone()
_log_audit(
self.db, tid, dsfa_id, "SECTION_UPDATE",
new_values={"section": section_number, "field": field},
)
self.db.commit()
return _dsfa_to_response(row)
# ------------------------------------------------------------------
# Submit for review
# ------------------------------------------------------------------
def submit_for_review(
self, dsfa_id: str, tenant_id: Optional[str]
) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text(
"SELECT id, status FROM compliance_dsfas "
"WHERE id = :id AND tenant_id = :tid"
),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
if existing["status"] not in ("draft", "needs-update"):
raise ValidationError(
f"Kann nur aus Status 'draft' oder 'needs-update' "
f"eingereicht werden, aktuell: {existing['status']}"
)
row = self.db.execute(
text("""
UPDATE compliance_dsfas
SET status = 'in-review',
submitted_for_review_at = NOW(),
updated_at = NOW()
WHERE id = :id AND tenant_id = :tid
RETURNING *
"""),
{"id": dsfa_id, "tid": tid},
).fetchone()
_log_audit(
self.db, tid, dsfa_id, "SUBMIT_FOR_REVIEW",
old_values={"status": existing["status"]},
new_values={"status": "in-review"},
)
self.db.commit()
return {
"message": "DSFA zur Prüfung eingereicht",
"status": "in-review",
"dsfa": _dsfa_to_response(row),
}
# ------------------------------------------------------------------
# Approve / reject
# ------------------------------------------------------------------
def approve(
self,
dsfa_id: str,
tenant_id: Optional[str],
body: DSFAApproveRequest,
) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
existing = self.db.execute(
text(
"SELECT id, status FROM compliance_dsfas "
"WHERE id = :id AND tenant_id = :tid"
),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not existing:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
if existing["status"] != "in-review":
raise ValidationError(
f"Nur DSFAs im Status 'in-review' können genehmigt werden, "
f"aktuell: {existing['status']}"
)
if body.approved:
new_status = "approved"
self.db.execute(
text("""
UPDATE compliance_dsfas
SET status = 'approved',
approved_by = :approved_by,
approved_at = NOW(),
updated_at = NOW()
WHERE id = :id AND tenant_id = :tid
RETURNING *
"""),
{
"id": dsfa_id,
"tid": tid,
"approved_by": body.approved_by or "system",
},
).fetchone()
else:
new_status = "needs-update"
self.db.execute(
text("""
UPDATE compliance_dsfas
SET status = 'needs-update', updated_at = NOW()
WHERE id = :id AND tenant_id = :tid
RETURNING *
"""),
{"id": dsfa_id, "tid": tid},
).fetchone()
_log_audit(
self.db, tid, dsfa_id,
"APPROVE" if body.approved else "REJECT",
old_values={"status": existing["status"]},
new_values={"status": new_status, "comments": body.comments},
)
self.db.commit()
return {
"message": (
"DSFA genehmigt"
if body.approved
else "DSFA zurückgewiesen"
),
"status": new_status,
}
# ------------------------------------------------------------------
# Export JSON
# ------------------------------------------------------------------
def export_json(
self, dsfa_id: str, tenant_id: Optional[str], fmt: str
) -> dict[str, Any]:
tid = _get_tenant_id(tenant_id)
row = self.db.execute(
text(
"SELECT * FROM compliance_dsfas "
"WHERE id = :id AND tenant_id = :tid"
),
{"id": dsfa_id, "tid": tid},
).fetchone()
if not row:
raise NotFoundError(f"DSFA {dsfa_id} nicht gefunden")
dsfa_data = _dsfa_to_response(row)
return {
"exported_at": datetime.now(timezone.utc).isoformat(),
"format": fmt,
"dsfa": dsfa_data,
}
# ------------------------------------------------------------------
# Versions
# ------------------------------------------------------------------
def list_versions(
self, dsfa_id: str, tenant_id: Optional[str]
) -> Any:
tid = _get_tenant_id(tenant_id)
return list_versions(self.db, "dsfa", dsfa_id, tid)
def get_version(
self,
dsfa_id: str,
version_number: int,
tenant_id: Optional[str],
) -> Any:
tid = _get_tenant_id(tenant_id)
v = get_version(self.db, "dsfa", dsfa_id, version_number, tid)
if not v:
raise NotFoundError(
f"Version {version_number} not found"
)
return v