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from sqlalchemy import Boolean, Integer, String, Text
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from sqlalchemy.orm import Mapped, mapped_column
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from app.core.base_model import ModelMixin, TenantMixin, UserMixin
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class ParamsModel(ModelMixin, TenantMixin, UserMixin):
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"""
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系统参数表
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用于存储全局系统配置（如 retention_days、smtp 主机等）。
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平台参数（tenant_id=1）对所有租户共享；租户级参数仅本租户可见。
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"""
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__tablename__: str = "sys_param"
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__table_args__: dict[str, str] = {"comment": "系统参数表"}
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__loader_options__: list[str] = [
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"created_by",
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"updated_by",
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"deleted_by",
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"tenant_by",
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]
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config_name: Mapped[str] = mapped_column(String(64), nullable=False, comment="参数名称")
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config_key: Mapped[str] = mapped_column(String(500), nullable=False, comment="参数键名")
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config_value: Mapped[str | None] = mapped_column(String(500), comment="参数键值")
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config_type: Mapped[bool] = mapped_column(Boolean, default=False, nullable=True, comment="系统内置(True:是 False:否)", index=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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