49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
"""老师表（需求 2.5）。"""
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from __future__ import annotations
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from datetime import date
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from sqlalchemy import Date, String
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.model.assoc import class_teachers
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from app.model.base import Base, SoftDeleteMixin, TimestampMixin
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from app.model.constants import GENDER_TEXT
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class Teacher(Base, TimestampMixin, SoftDeleteMixin):
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__tablename__ = "teacher"
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__table_args__ = {"comment": "授课老师表"}
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id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
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teacher_no: Mapped[str] = mapped_column(String(20), unique=True, nullable=False, comment="工号")
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name: Mapped[str] = mapped_column(String(30), nullable=False, index=True, comment="姓名")
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gender: Mapped[int] = mapped_column(default=1, nullable=False, comment="性别 1=男 2=女")
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phone: Mapped[str | None] = mapped_column(String(20), comment="手机号")
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email: Mapped[str | None] = mapped_column(String(60), comment="邮箱")
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title: Mapped[str | None] = mapped_column(String(30), comment="职称，如 讲师/高级讲师")
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subject: Mapped[str | None] = mapped_column(String(50), comment="授课方向，如 Java/前端/大数据")
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hire_date: Mapped[date | None] = mapped_column(Date, comment="入职时间")
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remark: Mapped[str | None] = mapped_column(String(255), comment="备注")
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# 带班信息：多对多
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classes: Mapped[list["Clazz"]] = relationship( # noqa: F821
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secondary=class_teachers,
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back_populates="teachers",
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lazy="selectin",
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)
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# ---------------- 出参派生字段 ----------------
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@property
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def gender_text(self) -> str | None:
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return GENDER_TEXT.get(self.gender)
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@property
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def class_names(self) -> list[str]:
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return [c.name for c in self.classes if c.is_del == 0]
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@property
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def class_count(self) -> int:
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return len(self.class_names)
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