58 lines
2.8 KiB
Python
58 lines
2.8 KiB
Python
from __future__ import annotations
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from datetime import date, datetime
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from sqlalchemy import Date, DateTime, Float, ForeignKey, Integer, String, Text, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.db.session import Base
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class MixCalculatorSession(Base):
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__tablename__ = "mix_calculator_sessions"
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__table_args__ = (UniqueConstraint("tenant_id", "session_number", name="uq_mix_calculator_session_number"),)
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id: Mapped[int] = mapped_column(primary_key=True)
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tenant_id: Mapped[str] = mapped_column(String(64), default="default", index=True)
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session_number: Mapped[str] = mapped_column(String(32), index=True)
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client_name: Mapped[str] = mapped_column(String(255), index=True)
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product_id: Mapped[int] = mapped_column(ForeignKey("products.id"), index=True)
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product_name: Mapped[str] = mapped_column(String(255))
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mix_id: Mapped[int] = mapped_column(ForeignKey("mixes.id"), index=True)
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mix_name: Mapped[str] = mapped_column(String(255))
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mix_date: Mapped[date] = mapped_column(Date, index=True)
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batch_size_kg: Mapped[float] = mapped_column(Float)
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total_bags: Mapped[float] = mapped_column(Float)
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total_kg: Mapped[float] = mapped_column(Float)
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product_unit_of_measure: Mapped[str] = mapped_column(String(64))
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product_unit_size_kg: Mapped[float] = mapped_column(Float)
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prepared_by_user_id: Mapped[int | None] = mapped_column(ForeignKey("client_users.id"), nullable=True, index=True)
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prepared_by_name: Mapped[str] = mapped_column(String(255))
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created_by: Mapped[str] = mapped_column(String(255))
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status: Mapped[str] = mapped_column(String(32), default="saved")
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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lines: Mapped[list["MixCalculatorSessionLine"]] = relationship(
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back_populates="session",
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cascade="all, delete-orphan",
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order_by="MixCalculatorSessionLine.sort_order",
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)
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class MixCalculatorSessionLine(Base):
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__tablename__ = "mix_calculator_session_lines"
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id: Mapped[int] = mapped_column(primary_key=True)
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tenant_id: Mapped[str] = mapped_column(String(64), default="default", index=True)
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session_id: Mapped[int] = mapped_column(ForeignKey("mix_calculator_sessions.id"), index=True)
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raw_material_id: Mapped[int | None] = mapped_column(nullable=True)
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raw_material_name: Mapped[str] = mapped_column(String(255))
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required_kg: Mapped[float] = mapped_column(Float)
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mix_percentage: Mapped[float] = mapped_column(Float)
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unit: Mapped[str] = mapped_column(String(64))
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sort_order: Mapped[int] = mapped_column(Integer, default=0)
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session: Mapped[MixCalculatorSession] = relationship(back_populates="lines")
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