Backend:
- New model: WasteLog (waste_log table) — product, quantity (float), reason, reason_notes,
unit_cost_snapshot (copied at log time from product's effective cost), total_cost (stored),
logged_by, business_day_id
- Cost snapshot: same logic as Phase 2A — breakdown sum first, fallback to cost_simple, null if neither
- New router /api/waste/:
- GET / — list entries (?business_day_id= or ?from=&to=), ordered by logged_at desc
- POST / — log waste; snapshots cost; attaches to open business day automatically
- DELETE /{id} — manager only; only allowed within the same open business day
- GET /summary — totals by reason + by product for a period
- product_performance report: waste_qty + waste_cost added per product from the same period;
products with only waste (no sales) also included
- Migration: CREATE TABLE IF NOT EXISTS waste_log
Frontend:
- WastePage (/waste): fast log form (product picker, quantity, reason chips, notes);
today's entries list below (scoped to active business day); cost shown per entry;
delete button for today's entries; history section behind toggle with date-range picker
- ProductPerformance report: Απόβλητα column showing waste_qty + cost in amber
- Sidebar: Trash2 icon for Αποβλήτα (after Καρτέλες)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
27 lines
1.2 KiB
Python
27 lines
1.2 KiB
Python
from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Text
|
|
from sqlalchemy.orm import relationship
|
|
from datetime import datetime, timezone
|
|
from database import Base
|
|
|
|
|
|
def _utcnow():
|
|
return datetime.now(timezone.utc)
|
|
|
|
|
|
class WasteLog(Base):
|
|
__tablename__ = "waste_log"
|
|
|
|
id = Column(Integer, primary_key=True, index=True)
|
|
product_id = Column(Integer, ForeignKey("products.id"), nullable=False)
|
|
quantity = Column(Float, nullable=False) # supports decimals
|
|
unit_cost_snapshot = Column(Float, nullable=True) # product's effective cost at log time
|
|
total_cost = Column(Float, nullable=True) # unit_cost_snapshot * quantity
|
|
reason = Column(String, nullable=False) # kitchen_error|dropped|expired|other
|
|
reason_notes = Column(Text, nullable=True)
|
|
logged_by_id = Column(Integer, ForeignKey("users.id"), nullable=False)
|
|
business_day_id = Column(Integer, ForeignKey("business_days.id"), nullable=True)
|
|
logged_at = Column(DateTime(timezone=True), default=_utcnow)
|
|
|
|
product = relationship("Product", foreign_keys=[product_id])
|
|
logged_by = relationship("User", foreign_keys=[logged_by_id])
|