74 lines
3.4 KiB
Python
74 lines
3.4 KiB
Python
"""基地与试验地管理 —— 数据模型
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两张无 `status` 列的域表，必须显式覆盖 `__table_args__`，
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只保留 `created_time` / `is_deleted` 索引（框架基类默认会加
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`ix_<表>_status` 索引，但本表无 status 列，不覆盖会建表失败）。
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"""
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from datetime import datetime
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from sqlalchemy import Float, ForeignKey, Index, Integer, String, Text, 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 BreedingSiteModel(ModelMixin, UserMixin, MappedBase):
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"""育种基地（试验站）主数据表。"""
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__tablename__ = "bre_site"
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site_name: Mapped[str] = mapped_column(
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String(100), nullable=False, unique=True, comment="基地名称"
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)
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address: Mapped[str | None] = mapped_column(String(255), nullable=True, comment="详细地址")
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area: Mapped[float | None] = mapped_column(Float, nullable=True, comment="基地面积(亩)")
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longitude: Mapped[float | None] = mapped_column(Float, nullable=True, comment="经度")
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latitude: Mapped[float | None] = mapped_column(Float, nullable=True, comment="纬度")
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eco_type: Mapped[str | None] = mapped_column(
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String(50), nullable=True, comment="生态区类型(如 华北/西北/华东/西南/东北/华南)"
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)
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soil_type: Mapped[str | None] = mapped_column(String(50), nullable=True, comment="土壤类型", default=None)
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elevation: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="海拔(m)", default=None)
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remark: Mapped[str | None] = mapped_column(Text, nullable=True, comment="备注")
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# 注：created_time / is_deleted 已由 ModelMixin 的 index=True 自动建索引
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# (ix_bre_site_created_time / ix_bre_site_is_deleted)，此处仅补一个
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# 复合索引用于数据权限过滤，且必须覆盖基类默认会建的 ix_<表>_status_deleted
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# （本表无 status 列，不覆盖会引用不存在的列而建表失败）。
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__table_args__ = (
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Index("ix_bre_site_created_deleted", "created_time", "is_deleted"),
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)
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class BreedingPlotModel(ModelMixin, UserMixin, MappedBase):
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"""试验地块 —— 隶属于某个基地。"""
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__tablename__ = "bre_plot"
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site_id: Mapped[int] = mapped_column(
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Integer,
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ForeignKey("bre_site.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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comment="所属基地ID",
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)
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plot_code: Mapped[str] = mapped_column(
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String(50), nullable=False, comment="地块编号/名称"
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)
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row_orientation: Mapped[str | None] = mapped_column(
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String(20), nullable=True, comment="行向(南北行/东西行)"
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)
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row_count: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="行数")
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col_count: Mapped[int | None] = mapped_column(Integer, nullable=True, comment="每行株数")
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grid_note: Mapped[str | None] = mapped_column(Text, nullable=True, comment="株行距/网格说明")
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area: Mapped[float | None] = mapped_column(Float, nullable=True, comment="地块面积(亩)")
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__table_args__ = (
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Index("ix_bre_plot_created_deleted", "created_time", "is_deleted"),
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# 基地内地块编号唯一（仅约束未软删记录，与 service 层查重语义一致）
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Index(
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"uniq_bre_plot_site_code", "site_id", "plot_code",
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unique=True, postgresql_where=text("is_deleted = false"),
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),
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)
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