49 lines
2.3 KiB
Python
49 lines
2.3 KiB
Python
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"""种子批(库存) 数据模型"""
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from datetime import date
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from sqlalchemy import Date, ForeignKey, Index, Integer, Numeric, String, Text
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from sqlalchemy.orm import Mapped, mapped_column
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from app.core.base_model import MappedBase, ModelMixin, UserMixin
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class SeedLotModel(ModelMixin, UserMixin, MappedBase):
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"""种子批·库存（规格 §3.13；used_count 派生 remaining，选择强度链源头）。"""
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__tablename__ = "bre_seed_lot"
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combination_id: Mapped[int] = mapped_column(
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Integer, ForeignKey("bre_cross_combination.id", ondelete="CASCADE"),
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index=True, nullable=False, comment="杂交组合"
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)
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pollination_id: Mapped[int | None] = mapped_column(
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Integer, ForeignKey("bre_pollination.id", ondelete="SET NULL"),
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index=True, nullable=True, comment="授粉记录(关联补链)", default=None
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)
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lot_code: Mapped[str] = mapped_column(String(64), nullable=False, index=True, comment="种子批号")
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harvest_year: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="收获年份", default=None)
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seed_count: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="收获粒数(选择强度源头)", default=None)
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used_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, comment="已取用粒数(seedling 按出苗数累加)")
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germination_rate: Mapped[float | None] = mapped_column(Numeric(5, 2), nullable=True, comment="发芽率%(活力)", default=None)
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storage_type: Mapped[str | None] = mapped_column(String(16), nullable=True, comment="存储类型(种子库/离体/DNA)", default=None)
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storage_location: Mapped[str | None] = mapped_column(String(128), nullable=True, comment="存放位置", default=None)
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test_date: Mapped[date | None] = mapped_column(Date, nullable=True, comment="活力检测日期", default=None)
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remark: Mapped[str | None] = mapped_column(Text, nullable=True, comment="备注", default=None)
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# 无 status 列：覆盖基类默认 ix_<表>_status_deleted 索引，
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# 仅保留 (created_time, is_deleted) 复合索引用于数据权限过滤。
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__table_args__ = (
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Index("ix_bre_seed_lot_created_deleted", "created_time", "is_deleted"),
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Index("uq_bre_seed_lot_code", "lot_code", unique=True),
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)
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