unknown
78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
"""Per-subject limit policy overrides used by the admin whitelist page."""
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from __future__ import annotations
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from datetime import datetime
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from sqlalchemy import (
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Boolean,
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DateTime,
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Index,
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Integer,
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String,
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UniqueConstraint,
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func,
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true,
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)
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from sqlalchemy.orm import Mapped, mapped_column
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from app.db.base import Base
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class LimitPolicyOverride(Base):
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"""One rule override for one phone or device.
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``reset_at`` is a non-destructive usage baseline. Business records and
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security events remain intact; quota readers only count rows at or after
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this timestamp.
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"""
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__tablename__ = "limit_policy_override"
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__table_args__ = (
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UniqueConstraint(
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"subject_type",
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"subject_value",
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"rule_code",
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name="uq_limit_policy_subject_rule",
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),
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Index(
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"ix_limit_policy_lookup",
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"subject_type",
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"subject_value",
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"rule_code",
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"enabled",
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),
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Index("ix_limit_policy_expires", "expires_at"),
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)
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id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
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subject_type: Mapped[str] = mapped_column(String(16), nullable=False)
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subject_value: Mapped[str] = mapped_column(String(128), nullable=False)
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rule_code: Mapped[str] = mapped_column(String(64), nullable=False)
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# 产品只保留“临时不限/免告警”。即使有内部脚本绕过 API 直接建 ORM
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# 对象，也不能再悄悄落成已经下线的 override 模式。
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mode: Mapped[str] = mapped_column(String(24), nullable=False, default="unlimited")
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limit_value: Mapped[int | None] = mapped_column(Integer, nullable=True)
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enabled: Mapped[bool] = mapped_column(
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Boolean, nullable=False, default=True, server_default=true()
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)
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starts_at: Mapped[datetime | None] = mapped_column(
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DateTime(timezone=True), nullable=True
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)
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expires_at: Mapped[datetime | None] = mapped_column(
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DateTime(timezone=True), nullable=True
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)
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reset_at: Mapped[datetime | None] = mapped_column(
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DateTime(timezone=True), nullable=True
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)
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reason: Mapped[str | None] = mapped_column(String(256), nullable=True)
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created_by_admin_id: Mapped[int | None] = mapped_column(Integer, nullable=True)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), server_default=func.now(), nullable=False
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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onupdate=func.now(),
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nullable=False,
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)
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