激光材料数据平台 1.3.0
公开数据看板、四位 Key 录入面板、管理后台与三级权限、动态字段配置、 PostgreSQL/SQLite 双支持、数据库备份，以及本版新增的成品图上传与预览。 图片相关： - 录入表单支持相册选图与手机端直接拍照，每条记录最多 6 张 - 浏览器内压缩到最长边 1600 并剥离 EXIF，入库统一为 JPG/PNG - 二进制直接入库，现有备份自动覆盖图片，部署无需新增卷 - 详情页缩略图宫格与全屏 lightbox，公开看板同样可见 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Claude Fable 5
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from __future__ import annotations
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from datetime import date, datetime
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from typing import Optional
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from sqlalchemy import BigInteger, Boolean, Date, DateTime, Float, ForeignKey, Index, Integer, LargeBinary, String, Text, UniqueConstraint
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from sqlalchemy.orm import Mapped, deferred, mapped_column, relationship
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from .db import Base
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def now() -> datetime:
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return datetime.now().astimezone()
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class User(Base):
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__tablename__ = "users"
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id: Mapped[int] = mapped_column(primary_key=True)
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username: Mapped[str] = mapped_column(String(64), unique=True, index=True)
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display_name: Mapped[str] = mapped_column(String(100))
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password_hash: Mapped[str] = mapped_column(String(300))
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role: Mapped[str] = mapped_column(String(20), default="uploader", index=True)
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is_active: Mapped[bool] = mapped_column(Boolean, default=True)
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must_change_password: Mapped[bool] = mapped_column(Boolean, default=True)
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entry_key_hash: Mapped[Optional[str]] = mapped_column(String(64), unique=True, nullable=True, index=True)
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entry_key_updated_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, onupdate=now)
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class LoginSession(Base):
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__tablename__ = "login_sessions"
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id: Mapped[int] = mapped_column(primary_key=True)
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token_hash: Mapped[str] = mapped_column(String(64), unique=True, index=True)
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user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True)
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expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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ip_address: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
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user_agent: Mapped[Optional[str]] = mapped_column(String(300), nullable=True)
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user: Mapped[User] = relationship()
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class EntrySession(Base):
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__tablename__ = "entry_sessions"
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id: Mapped[int] = mapped_column(primary_key=True)
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token_hash: Mapped[str] = mapped_column(String(64), unique=True, index=True)
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user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True)
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expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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ip_address: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
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user: Mapped[User] = relationship()
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class EntryBatch(Base):
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__tablename__ = "entry_batches"
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id: Mapped[int] = mapped_column(primary_key=True)
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entry_no: Mapped[str] = mapped_column(String(40), unique=True, index=True)
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record_count: Mapped[int] = mapped_column(Integer, default=1)
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status: Mapped[str] = mapped_column(String(20), default="success", index=True)
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created_by: Mapped[int] = mapped_column(ForeignKey("users.id"), index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, index=True)
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creator: Mapped[User] = relationship()
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class MaterialRecord(Base):
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__tablename__ = "material_records"
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__table_args__ = (
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UniqueConstraint("entry_batch_id", "experiment_id", name="uq_entry_experiment"),
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Index("ix_record_material_date", "material_category", "test_date"),
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)
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id: Mapped[int] = mapped_column(primary_key=True)
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entry_batch_id: Mapped[int] = mapped_column(ForeignKey("entry_batches.id", ondelete="CASCADE"), index=True)
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experiment_id: Mapped[str] = mapped_column(String(100), unique=True, index=True)
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test_date: Mapped[date] = mapped_column(Date, index=True)
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material_category: Mapped[str] = mapped_column(String(100), index=True)
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material_name: Mapped[str] = mapped_column(String(200), index=True)
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apparent_density: Mapped[Optional[float]] = mapped_column(Float)
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uv_absorption_355nm: Mapped[Optional[float]] = mapped_column(Float)
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material_thickness: Mapped[float] = mapped_column(Float)
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moisture_content: Mapped[Optional[float]] = mapped_column(Float)
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thermal_conductivity: Mapped[Optional[float]] = mapped_column(Float)
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initial_decomposition_temp: Mapped[Optional[float]] = mapped_column(Float)
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melting_vaporization_temp: Mapped[Optional[float]] = mapped_column(Float)
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specific_heat_capacity: Mapped[Optional[float]] = mapped_column(Float)
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carbon_residue_rate: Mapped[Optional[float]] = mapped_column(Float)
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surface_roughness: Mapped[Optional[float]] = mapped_column(Float)
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hardness: Mapped[Optional[float]] = mapped_column(Float)
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actual_output_power: Mapped[float] = mapped_column(Float)
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display_current: Mapped[float] = mapped_column(Float)
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scanning_speed: Mapped[float] = mapped_column(Float)
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pulse_frequency: Mapped[float] = mapped_column(Float)
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pulse_width: Mapped[float] = mapped_column(Float)
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defocus_amount: Mapped[float] = mapped_column(Float)
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scan_line_spacing: Mapped[float] = mapped_column(Float)
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filling_method: Mapped[str] = mapped_column(String(100))
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processing_size: Mapped[str] = mapped_column(String(100))
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is_cut_through: Mapped[bool] = mapped_column(Boolean)
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carbonized_edge_width: Mapped[float] = mapped_column(Float)
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etching_depth: Mapped[float] = mapped_column(Float)
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is_fire_smolder: Mapped[bool] = mapped_column(Boolean)
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pattern_clarity_score: Mapped[float] = mapped_column(Float)
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presentation_balance_score: Mapped[float] = mapped_column(Float)
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finished_image_filename: Mapped[str] = mapped_column(String(255))
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remarks: Mapped[str] = mapped_column(Text)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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entry_batch: Mapped[EntryBatch] = relationship()
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custom_values: Mapped[list["CustomFieldValue"]] = relationship(back_populates="record", cascade="all, delete-orphan")
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images: Mapped[list["RecordImage"]] = relationship(back_populates="record", cascade="all, delete-orphan", passive_deletes=True, order_by="RecordImage.sort_order, RecordImage.id")
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class RecordImage(Base):
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"""实验成品图。二进制直接入库，现有数据库备份即可覆盖图片，无需额外挂载卷。"""
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__tablename__ = "record_images"
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id: Mapped[int] = mapped_column(primary_key=True)
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record_id: Mapped[Optional[int]] = mapped_column(ForeignKey("material_records.id", ondelete="CASCADE"), nullable=True, index=True)
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token: Mapped[str] = mapped_column(String(64), unique=True, index=True)
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content_type: Mapped[str] = mapped_column(String(40))
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original_name: Mapped[str] = mapped_column(String(255))
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size_bytes: Mapped[int] = mapped_column(Integer)
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width: Mapped[int] = mapped_column(Integer)
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height: Mapped[int] = mapped_column(Integer)
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sha256: Mapped[str] = mapped_column(String(64), index=True)
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# deferred：详情接口只需要元信息，默认加载会把每条记录的几 MB 图片全读进内存，
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# 而公开详情是匿名可访问的，等于把看板变成内存放大器。
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data: Mapped[bytes] = deferred(mapped_column(LargeBinary))
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thumbnail: Mapped[Optional[bytes]] = deferred(mapped_column(LargeBinary, nullable=True))
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thumbnail_type: Mapped[Optional[str]] = mapped_column(String(40), nullable=True)
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sort_order: Mapped[int] = mapped_column(Integer, default=0)
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created_by: Mapped[int] = mapped_column(ForeignKey("users.id"), index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, index=True)
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record: Mapped[Optional[MaterialRecord]] = relationship(back_populates="images")
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creator: Mapped[User] = relationship()
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class CustomFieldDefinition(Base):
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__tablename__ = "custom_field_definitions"
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id: Mapped[int] = mapped_column(primary_key=True)
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field_key: Mapped[str] = mapped_column(String(50), unique=True, index=True)
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label: Mapped[str] = mapped_column(String(100))
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input_type: Mapped[str] = mapped_column(String(20), index=True)
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is_required: Mapped[bool] = mapped_column(Boolean, default=False)
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is_active: Mapped[bool] = mapped_column(Boolean, default=True, index=True)
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is_public: Mapped[bool] = mapped_column(Boolean, default=True)
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unit: Mapped[Optional[str]] = mapped_column(String(50), nullable=True)
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options_json: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
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sort_order: Mapped[int] = mapped_column(Integer, default=0, index=True)
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created_by: Mapped[int] = mapped_column(ForeignKey("users.id"), index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, onupdate=now)
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creator: Mapped[User] = relationship()
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values: Mapped[list["CustomFieldValue"]] = relationship(back_populates="definition")
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class CustomFieldValue(Base):
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__tablename__ = "custom_field_values"
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__table_args__ = (UniqueConstraint("record_id", "field_id", name="uq_record_custom_field"),)
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id: Mapped[int] = mapped_column(primary_key=True)
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record_id: Mapped[int] = mapped_column(ForeignKey("material_records.id", ondelete="CASCADE"), index=True)
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field_id: Mapped[int] = mapped_column(ForeignKey("custom_field_definitions.id", ondelete="RESTRICT"), index=True)
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raw_value: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now)
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, onupdate=now)
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record: Mapped[MaterialRecord] = relationship(back_populates="custom_values")
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definition: Mapped[CustomFieldDefinition] = relationship(back_populates="values")
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class AuditLog(Base):
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__tablename__ = "audit_logs"
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id: Mapped[int] = mapped_column(primary_key=True)
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user_id: Mapped[Optional[int]] = mapped_column(ForeignKey("users.id"), nullable=True, index=True)
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action: Mapped[str] = mapped_column(String(80), index=True)
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resource_type: Mapped[str] = mapped_column(String(80), index=True)
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resource_id: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)
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detail: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
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ip_address: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, index=True)
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user: Mapped[Optional[User]] = relationship()
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class BackupRecord(Base):
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__tablename__ = "backup_records"
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id: Mapped[int] = mapped_column(primary_key=True)
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filename: Mapped[str] = mapped_column(String(255), unique=True)
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database_type: Mapped[str] = mapped_column(String(30))
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# BigInteger：图片入库后备份很容易超过 2 GiB，PostgreSQL 的 integer 到那里就溢出了
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size_bytes: Mapped[int] = mapped_column(BigInteger)
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sha256: Mapped[str] = mapped_column(String(64))
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created_by: Mapped[Optional[int]] = mapped_column(ForeignKey("users.id"), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=now, index=True)
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creator: Mapped[Optional[User]] = relationship()
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