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Mindestbestand in jeder angelegten Einheit erfassbar (und gemerkt)

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- Produktformular: Auswahl aller verwalteten Einheiten passender Art (plus
  Packungen), inkl. Umrechnung beim Wechsel.
- Die gewaehlte Erfassungseinheit wird gespeichert (products.min_stock_unit_id /
  min_stock_in_packages) und exakt so wieder angezeigt - vorher wurde sie aus der
  Produkteinheit abgeleitet.
- ProductOut liefert min_stock_display + min_stock_unit_label; Produkttabelle
  zeigt den Mindestbestand damit in der erfassten Einheit mit Einheit dahinter.
- Migration: ADD COLUMN IF NOT EXISTS fuer die zwei neuen Spalten.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Scarriffle
2026-07-22 12:54:47 +02:00
parent 44e7c2ef90
commit 0d55d1f8d9
7 changed files with 70 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
backend/app/crud.py
View File

@@ -30,6 +30,18 @@ def product_to_out(db: Session, product: Product) -> ProductOut:
name, factor = display_unit_info(product)
out.unit_name = name
out.unit_factor = factor
# Mindestbestand in der Einheit anzeigen, in der er erfasst wurde.
if product.min_stock is not None:
if product.min_stock_in_packages and product.package_size:
out.min_stock_display = product.min_stock / product.package_size
out.min_stock_unit_label = "Pkg"
elif product.min_stock_unit is not None:
out.min_stock_display = product.min_stock / product.min_stock_unit.factor
out.min_stock_unit_label = product.min_stock_unit.name
else:
out.min_stock_display = product.min_stock / factor
out.min_stock_unit_label = name
return out

4
backend/app/main.py
View File

@@ -37,6 +37,10 @@ def _ensure_schema() -> None:
"REFERENCES units(id) ON DELETE SET NULL",
"ALTER TABLE groups ADD COLUMN IF NOT EXISTS min_stock_unit_id INTEGER "
"REFERENCES units(id) ON DELETE SET NULL",
"ALTER TABLE products ADD COLUMN IF NOT EXISTS min_stock_unit_id INTEGER "
"REFERENCES units(id) ON DELETE SET NULL",
"ALTER TABLE products ADD COLUMN IF NOT EXISTS min_stock_in_packages BOOLEAN "
"NOT NULL DEFAULT FALSE",
]
with engine.begin() as conn:
for stmt in stmts:

10
backend/app/models.py
View File

@@ -124,13 +124,21 @@ class Product(Base):
ForeignKey("groups.id", ondelete="SET NULL"), nullable=True
)
min_stock: Mapped[float | None] = mapped_column(Float, nullable=True) # in base units
# In welcher Einheit der Mindestbestand erfasst wurde (nur für die Anzeige).
min_stock_unit_id: Mapped[int | None] = mapped_column(
ForeignKey("units.id", ondelete="SET NULL"), nullable=True
)
min_stock_in_packages: Mapped[bool] = mapped_column(
Boolean, nullable=False, default=False
)
source: Mapped[str] = mapped_column(String(16), nullable=False, default="manual")
off_raw: Mapped[str | None] = mapped_column(Text, nullable=True) # JSON blob from OFF
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
group: Mapped[Group | None] = relationship(back_populates="products")
display_unit: Mapped[Unit | None] = relationship()
display_unit: Mapped[Unit | None] = relationship(foreign_keys=[display_unit_id])
min_stock_unit: Mapped[Unit | None] = relationship(foreign_keys=[min_stock_unit_id])
lots: Mapped[list[Lot]] = relationship(
back_populates="product", cascade="all, delete-orphan"
)

4
backend/app/routers/products.py
View File

@@ -84,6 +84,8 @@ def create_product(
package_size=payload.package_size,
group_id=payload.group_id,
min_stock=payload.min_stock,
min_stock_unit_id=payload.min_stock_unit_id,
min_stock_in_packages=bool(payload.min_stock_in_packages),
source="manual",
)
db.add(product)
@@ -125,6 +127,8 @@ def update_product(
product.base_unit, product.display_unit_id = resolve_product_unit(db, unit_id)
except ConversionError as exc:
raise HTTPException(status.HTTP_400_BAD_REQUEST, str(exc)) from exc
if data.get("min_stock_in_packages") is None:
data.pop("min_stock_in_packages", None) # Spalte ist NOT NULL
for field, value in data.items():
setattr(product, field, value)
db.commit()

12
backend/app/schemas.py
View File

@@ -100,7 +100,10 @@ class ProductBase(BaseModel):
unit_id: int | None = None
package_size: float | None = Field(default=None, gt=0)
group_id: int | None = None
min_stock: float | None = Field(default=None, ge=0)
min_stock: float | None = Field(default=None, ge=0) # immer in Basiseinheiten
# Nur für die Anzeige: in welcher Einheit der Mindestbestand erfasst wurde.
min_stock_unit_id: int | None = None
min_stock_in_packages: bool = False
class ProductCreate(ProductBase):
@@ -117,6 +120,8 @@ class ProductUpdate(BaseModel):
package_size: float | None = Field(default=None, gt=0)
group_id: int | None = None
min_stock: float | None = Field(default=None, ge=0)
min_stock_unit_id: int | None = None
min_stock_in_packages: bool | None = None
class ProductOut(BaseModel):
@@ -131,6 +136,8 @@ class ProductOut(BaseModel):
package_size: float | None
group_id: int | None
min_stock: float | None
min_stock_unit_id: int | None = None
min_stock_in_packages: bool = False
source: str
created_at: datetime
# angereichert:
@@ -139,6 +146,9 @@ class ProductOut(BaseModel):
kind: str = ""
unit_name: str = ""
unit_factor: float = 1.0
# Mindestbestand in der erfassten Einheit (für die Anzeige):
min_stock_display: float | None = None
min_stock_unit_label: str = ""
class LookupResult(BaseModel):