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from sqlalchemy import Boolean, ForeignKey, Integer, String, Text, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.core.base_model import ModelMixin, TenantMixin
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class DictTypeModel(ModelMixin, TenantMixin):
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"""
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字典类型表
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__platform_data_shared__ = True 表示 tenant_id=1 的平台字典对
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所有租户可读，但只有平台管理员可写。
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"""
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__tablename__: str = "sys_dict_type"
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__table_args__ = (UniqueConstraint("tenant_id", "dict_type"), {"comment": "字典类型表"})
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__loader_options__: list[str] = ["dict_data_list"]
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__platform_data_shared__: bool = True
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dict_name: Mapped[str] = mapped_column(String(64), nullable=False, comment="字典名称")
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dict_type: Mapped[str] = mapped_column(String(255), nullable=False, comment="字典类型")
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status: Mapped[int] = mapped_column(Integer, default=0, nullable=False, comment="状态(0:启动 1:停用)", index=True)
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description: Mapped[str | None] = mapped_column(Text, default=None, nullable=True, comment="备注")
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dict_data_list: Mapped[list["DictDataModel"]] = relationship(
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"DictDataModel",
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back_populates="dict_type_obj",
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cascade="all, delete-orphan",
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)
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class DictDataModel(ModelMixin, TenantMixin):
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"""
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字典数据表
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与 DictTypeModel 相同：tenant_id=1 的平台字典数据对
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所有租户可读，但只有平台管理员可写。
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"""
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__tablename__: str = "sys_dict_data"
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__table_args__ = (
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UniqueConstraint("tenant_id", "dict_type_id", "dict_value", name="uq_dict_data_value"),
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{"comment": "字典数据表"},
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)
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__loader_options__: list[str] = ["dict_type_obj"]
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__platform_data_shared__: bool = True
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status: Mapped[int] = mapped_column(Integer, default=0, nullable=False, comment="状态(0:启动 1:停用)", index=True)
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description: Mapped[str | None] = mapped_column(Text, default=None, nullable=True, comment="备注")
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dict_sort: Mapped[int] = mapped_column(Integer, nullable=False, default=0, comment="字典排序")
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dict_label: Mapped[str] = mapped_column(String(255), nullable=False, comment="字典标签")
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dict_value: Mapped[str] = mapped_column(String(255), nullable=False, comment="字典键值")
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css_class: Mapped[str | None] = mapped_column(String(255), nullable=True, comment="样式属性（其他样式扩展）")
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list_class: Mapped[str | None] = mapped_column(String(255), nullable=True, comment="表格回显样式")
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is_default: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, comment="是否默认(True是 False否)")
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dict_type: Mapped[str] = mapped_column(String(255), nullable=False, comment="字典类型")
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# 添加外键关系，同时保留dict_type字段用于业务查询
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dict_type_id: Mapped[int] = mapped_column(
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Integer,
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ForeignKey("sys_dict_type.id", ondelete="CASCADE"),
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nullable=False,
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comment="字典类型ID",
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)
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# 关系定义
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dict_type_obj: Mapped[DictTypeModel] = relationship("DictTypeModel", back_populates="dict_data_list")
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