v0.1.0: CRM/ERP 系统内测版本 - 安全加固完成

- Docker bridge 网络隔离（8000 端口封死） - Gunicorn 4 Worker 多进程 - Alembic 数据库迁移基线 - 日志轮转 20m×3 - JWT 密钥 + DB 密码 + CORS 收紧 - 3-2-1 备份链路（NAS + R740-B 冷备） - 连接池 pool_pre_ping + pool_recycle=3600
2026-03-16 07:31:37 +00:00
commit 423baff73b
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+"""
+ERP 供应链域 ORM 模型
+映射: erp_product_categories / erp_product_skus / erp_inventory_flows
+"""
+
+from __future__ import annotations
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import (
+    Boolean,
+    DateTime,
+    ForeignKey,
+    Integer,
+    Numeric,
+    SmallInteger,
+    String,
+    Text,
+    func,
+)
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import Base
+
+
+class ProductCategory(Base):
+    __tablename__ = "erp_product_categories"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
+    )
+    parent_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("erp_product_categories.id"), nullable=True
+    )
+    name: Mapped[str] = mapped_column(String(100), nullable=False)
+    sort_order: Mapped[int] = mapped_column(Integer, default=0)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime, server_default=func.now(), onupdate=func.now()
+    )
+    is_deleted: Mapped[bool] = mapped_column(Boolean, default=False)
+
+
+class ProductSku(Base):
+    __tablename__ = "erp_product_skus"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
+    )
+    category_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("erp_product_categories.id"), nullable=True
+    )
+    sku_code: Mapped[str] = mapped_column(String(50), unique=True, nullable=False)
+    name: Mapped[str] = mapped_column(String(200), nullable=False)
+    spec: Mapped[str | None] = mapped_column(String(100), nullable=True)
+    standard_price: Mapped[float] = mapped_column(Numeric(12, 2), default=0)
+    stock_qty: Mapped[float] = mapped_column(Numeric(12, 2), default=0)
+    warning_threshold: Mapped[float] = mapped_column(Numeric(12, 2), default=0)
+    unit: Mapped[str] = mapped_column(String(20), default="桶")
+    status: Mapped[int] = mapped_column(SmallInteger, default=1)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime, server_default=func.now(), onupdate=func.now()
+    )
+    is_deleted: Mapped[bool] = mapped_column(Boolean, default=False)
+
+    category: Mapped[ProductCategory | None] = relationship(
+        "ProductCategory", lazy="selectin"
+    )
+
+
+class InventoryFlow(Base):
+    __tablename__ = "erp_inventory_flows"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
+    )
+    sku_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("erp_product_skus.id"), nullable=False
+    )
+    change_qty: Mapped[float] = mapped_column(Numeric(12, 2), nullable=False)
+    reason: Mapped[str] = mapped_column(String(50), nullable=False)
+    remark: Mapped[str | None] = mapped_column(Text, nullable=True)
+    operator_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("sys_users.id"), nullable=True
+    )
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime, server_default=func.now(), onupdate=func.now()
+    )
+    is_deleted: Mapped[bool] = mapped_column(Boolean, default=False)
+
+    sku: Mapped[ProductSku | None] = relationship("ProductSku", lazy="selectin")
+    operator: Mapped["SysUser | None"] = relationship("SysUser", lazy="selectin")  # noqa: F821