Lagerorte umhängen (Backend + Web)
Bestehende Lagerorte lassen sich jetzt nachträglich einem anderen Elternort zuordnen oder auf die oberste Ebene holen. - Backend: LocationUpdate um parent_id (Name jetzt optional); update_location haengt um, mit Schutz gegen Ringe (weder auf sich selbst noch auf einen eigenen Unterort) und Existenzpruefung des Ziels. 6 Tests. - Web: Lagerorte-Seite bekommt je Ort Bearbeiten (Name + Elternort ueber den CategorySelect-Baum, eigene Unterorte ausgeschlossen); api.updateLocation. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@@ -10,6 +10,20 @@ from ..schemas import LocationCreate, LocationOut, LocationUpdate
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router = APIRouter(prefix="/locations", tags=["locations"])
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def _descendant_ids(db: Session, location_id: int) -> set[int]:
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"""Alle Unterorte (rekursiv) – als Ziel beim Umhängen ausgeschlossen, sonst
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entstünde ein Ring."""
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result: set[int] = set()
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stack = [location_id]
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while stack:
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cur = stack.pop()
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for kid in db.query(Location).filter(Location.parent_id == cur).all():
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if kid.id not in result:
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result.add(kid.id)
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stack.append(kid.id)
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return result
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@router.get("", response_model=list[LocationOut])
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def list_locations(
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db: Session = Depends(get_db), _: User = Depends(get_current_user)
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@@ -37,21 +51,41 @@ def update_location(
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db: Session = Depends(get_db),
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_: User = Depends(require_admin),
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) -> Location:
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"""Umbenennen. Chargen haengen an der ID, behalten ihren Lagerort also."""
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"""Umbenennen und/oder umhängen. Chargen haengen an der ID, behalten ihren
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Lagerort also."""
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loc = db.get(Location, location_id)
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if loc is None:
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raise HTTPException(status.HTTP_404_NOT_FOUND, "Lagerort nicht gefunden")
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name = payload.name.strip()
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doppelt = (
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db.query(Location)
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.filter(func.lower(Location.name) == name.lower(), Location.id != location_id)
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.first()
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)
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if doppelt is not None:
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raise HTTPException(status.HTTP_409_CONFLICT, "Diesen Lagerort gibt es bereits")
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data = payload.model_dump(exclude_unset=True)
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if "name" in data and data["name"]:
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name = data["name"].strip()
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doppelt = (
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db.query(Location)
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.filter(func.lower(Location.name) == name.lower(), Location.id != location_id)
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.first()
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)
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if doppelt is not None:
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raise HTTPException(status.HTTP_409_CONFLICT, "Diesen Lagerort gibt es bereits")
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loc.name = name
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# parent_id nur anfassen, wenn ausdrücklich mitgeschickt (None = oberste Ebene).
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if "parent_id" in data:
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neu = data["parent_id"]
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if neu is not None:
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if db.get(Location, neu) is None:
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raise HTTPException(
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status.HTTP_404_NOT_FOUND, "Übergeordneter Lagerort nicht gefunden"
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)
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if neu == location_id or neu in _descendant_ids(db, location_id):
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raise HTTPException(
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status.HTTP_400_BAD_REQUEST,
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"Ein Lagerort kann nicht sich selbst oder einem seiner Unterorte "
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"untergeordnet werden.",
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)
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loc.parent_id = neu
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loc.name = name
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db.commit()
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db.refresh(loc)
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return loc
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@@ -235,7 +235,8 @@ class LocationCreate(BaseModel):
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class LocationUpdate(BaseModel):
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name: str = Field(min_length=1, max_length=120)
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name: str | None = Field(default=None, min_length=1, max_length=120)
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parent_id: int | None = None
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# ---- Gebinde (Packung, Glas, …) ----
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71
backend/tests/test_locations.py
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71
backend/tests/test_locations.py
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@@ -0,0 +1,71 @@
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"""Lagerorte: Umbenennen und Umhängen (mit Schutz vor Ringen)."""
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import pytest
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from fastapi import HTTPException
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from app.models import Location, Role, User
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from app.routers.locations import update_location
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from app.schemas import LocationUpdate
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@pytest.fixture()
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def admin(db):
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person = User(username="admin", password_hash="x", role=Role.admin)
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db.add(person)
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db.commit()
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db.refresh(person)
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return person
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def _orte(db):
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"""Keller → Regal → Fach."""
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keller = Location(name="Keller")
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db.add(keller)
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db.flush()
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regal = Location(name="Regal", parent_id=keller.id)
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db.add(regal)
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db.flush()
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fach = Location(name="Fach", parent_id=regal.id)
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db.add(fach)
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db.commit()
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return keller, regal, fach
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def test_umbenennen_ohne_parent_bleibt_hierarchie(db, admin):
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keller, regal, _ = _orte(db)
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out = update_location(regal.id, LocationUpdate(name="Regal links"), db=db, _=admin)
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assert out.name == "Regal links"
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assert out.parent_id == keller.id # Umhängen war nicht gemeint
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def test_umhaengen_setzt_neuen_parent(db, admin):
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keller, _, fach = _orte(db)
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out = update_location(fach.id, LocationUpdate(parent_id=keller.id), db=db, _=admin)
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assert out.parent_id == keller.id
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def test_umhaengen_auf_oberste_ebene(db, admin):
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_, regal, _ = _orte(db)
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out = update_location(regal.id, LocationUpdate(parent_id=None), db=db, _=admin)
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assert out.parent_id is None
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def test_umhaengen_auf_sich_selbst_wird_abgelehnt(db, admin):
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keller, _, _ = _orte(db)
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with pytest.raises(HTTPException) as ex:
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update_location(keller.id, LocationUpdate(parent_id=keller.id), db=db, _=admin)
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assert ex.value.status_code == 400
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def test_umhaengen_in_eigenen_unterort_wird_abgelehnt(db, admin):
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keller, _, fach = _orte(db)
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with pytest.raises(HTTPException) as ex:
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update_location(keller.id, LocationUpdate(parent_id=fach.id), db=db, _=admin)
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assert ex.value.status_code == 400
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def test_umhaengen_auf_unbekannten_ort_ist_404(db, admin):
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_, _, fach = _orte(db)
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with pytest.raises(HTTPException) as ex:
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update_location(fach.id, LocationUpdate(parent_id=99999), db=db, _=admin)
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assert ex.value.status_code == 404
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