init: 后端框架脚手架 (Go + Gin + GORM + MySQL)
- 项目目录结构：backend/ deploy/ schema/ migrations/ - 数据库 Schema：所有建表 SQL，含 hotel_id 多租户隔离 - Go 后端：config、model、handler、service、middleware、router - 认证：账号密码登录 + JWT（Access + Refresh Token） - 许可证：HMAC-SHA256 激活码生成 + 设备绑定验证 - 业务模块：商品、仓库、往来单位、入库、出库、库存、盘点 - 库存事务：入库/出库审核时原子更新库存 + 流水记录 - 数据导入：Excel/CSV 批量导入商品、往来单位 - Docker Compose：本地 MySQL + Adminer Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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wangjia
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package model
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import "time"
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// -------- 入库单 --------
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type StockInOrder struct {
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TenantBase
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OrderNo string `gorm:"size:50;uniqueIndex:uk_hotel_order_no" json:"order_no"`
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Type string `gorm:"size:30;default:'purchase'" json:"type"`
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WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
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PartnerID *uint64 `json:"partner_id"`
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OperatorID uint64 `gorm:"not null" json:"operator_id"`
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ReviewerID *uint64 `json:"reviewer_id"`
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Status string `gorm:"type:enum('draft','pending','approved','rejected');default:'draft'" json:"status"`
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OrderDate time.Time `gorm:"type:date" json:"order_date"`
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TotalAmount float64 `gorm:"type:decimal(14,2);default:0" json:"total_amount"`
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ReviewedAt *time.Time `json:"reviewed_at"`
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CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
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Remark string `gorm:"size:500" json:"remark"`
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Items []StockInItem `gorm:"foreignKey:OrderID" json:"items,omitempty"`
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Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
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Partner *Partner `gorm:"foreignKey:PartnerID" json:"partner,omitempty"`
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Operator *User `gorm:"foreignKey:OperatorID" json:"operator,omitempty"`
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}
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type StockInItem struct {
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Base
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OrderID uint64 `gorm:"not null;index" json:"order_id"`
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HotelID uint64 `gorm:"not null" json:"hotel_id"`
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ProductID uint64 `gorm:"not null" json:"product_id"`
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Quantity float64 `gorm:"type:decimal(12,3);not null" json:"quantity"`
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UnitPrice float64 `gorm:"type:decimal(12,2);default:0" json:"unit_price"`
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TotalPrice float64 `gorm:"type:decimal(14,2);default:0" json:"total_price"`
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BatchNo string `gorm:"size:50" json:"batch_no"`
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CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
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Remark string `gorm:"size:255" json:"remark"`
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Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
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}
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// -------- 出库单 --------
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type StockOutOrder struct {
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TenantBase
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OrderNo string `gorm:"size:50;uniqueIndex:uk_hotel_order_no" json:"order_no"`
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Type string `gorm:"size:30;default:'sale'" json:"type"`
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WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
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PartnerID *uint64 `json:"partner_id"`
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OperatorID uint64 `gorm:"not null" json:"operator_id"`
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ReviewerID *uint64 `json:"reviewer_id"`
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Status string `gorm:"type:enum('draft','pending','approved','rejected');default:'draft'" json:"status"`
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OrderDate time.Time `gorm:"type:date" json:"order_date"`
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TotalAmount float64 `gorm:"type:decimal(14,2);default:0" json:"total_amount"`
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ReviewedAt *time.Time `json:"reviewed_at"`
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CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
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Remark string `gorm:"size:500" json:"remark"`
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Items []StockOutItem `gorm:"foreignKey:OrderID" json:"items,omitempty"`
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Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
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Partner *Partner `gorm:"foreignKey:PartnerID" json:"partner,omitempty"`
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Operator *User `gorm:"foreignKey:OperatorID" json:"operator,omitempty"`
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}
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type StockOutItem struct {
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Base
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OrderID uint64 `gorm:"not null;index" json:"order_id"`
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HotelID uint64 `gorm:"not null" json:"hotel_id"`
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ProductID uint64 `gorm:"not null" json:"product_id"`
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Quantity float64 `gorm:"type:decimal(12,3);not null" json:"quantity"`
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UnitPrice float64 `gorm:"type:decimal(12,2);default:0" json:"unit_price"`
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TotalPrice float64 `gorm:"type:decimal(14,2);default:0" json:"total_price"`
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CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
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Remark string `gorm:"size:255" json:"remark"`
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Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
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}
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// -------- 实时库存 --------
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type Inventory struct {
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ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
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HotelID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"hotel_id"`
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WarehouseID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"warehouse_id"`
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ProductID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"product_id"`
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Quantity float64 `gorm:"type:decimal(12,3);default:0" json:"quantity"`
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UpdatedAt time.Time `json:"updated_at"`
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Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
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Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
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}
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// -------- 库存流水 --------
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type InventoryLog struct {
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ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
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HotelID uint64 `gorm:"not null;index:idx_hotel_product" json:"hotel_id"`
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WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
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ProductID uint64 `gorm:"not null;index:idx_hotel_product" json:"product_id"`
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Direction string `gorm:"type:enum('in','out')" json:"direction"`
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Quantity float64 `gorm:"type:decimal(12,3)" json:"quantity"`
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QtyBefore float64 `gorm:"type:decimal(12,3)" json:"qty_before"`
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QtyAfter float64 `gorm:"type:decimal(12,3)" json:"qty_after"`
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RefType string `gorm:"size:30" json:"ref_type"`
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RefID uint64 `json:"ref_id"`
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OperatorID *uint64 `json:"operator_id"`
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CreatedAt time.Time `json:"created_at"`
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}
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// -------- 库存盘点 --------
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type InventoryCheck struct {
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TenantBase
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CheckNo string `gorm:"size:50;uniqueIndex:uk_hotel_check_no" json:"check_no"`
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WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
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OperatorID uint64 `gorm:"not null" json:"operator_id"`
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Status string `gorm:"type:enum('draft','completed');default:'draft'" json:"status"`
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CheckDate time.Time `gorm:"type:date" json:"check_date"`
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Remark string `gorm:"size:500" json:"remark"`
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Items []InventoryCheckItem `gorm:"foreignKey:CheckID" json:"items,omitempty"`
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}
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type InventoryCheckItem struct {
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Base
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CheckID uint64 `gorm:"not null;index" json:"check_id"`
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HotelID uint64 `gorm:"not null" json:"hotel_id"`
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ProductID uint64 `gorm:"not null" json:"product_id"`
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SystemQty float64 `gorm:"type:decimal(12,3)" json:"system_qty"`
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ActualQty float64 `gorm:"type:decimal(12,3)" json:"actual_qty"`
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DiffQty float64 `gorm:"->" json:"diff_qty"` // generated column，只读
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Remark string `gorm:"size:255" json:"remark"`
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Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
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}
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