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>
This commit is contained in:
wangjia
2026-04-04 01:24:53 +08:00
commit 0e42f0e417
39 changed files with 2989 additions and 0 deletions
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package model
import (
"database/sql/driver"
"encoding/json"
"fmt"
"time"
)
// JSON 类型,用于 custom_fields
type JSON map[string]interface{}
func (j JSON) Value() (driver.Value, error) {
if j == nil {
return nil, nil
}
b, err := json.Marshal(j)
return string(b), err
}
func (j *JSON) Scan(value interface{}) error {
if value == nil {
*j = nil
return nil
}
var bytes []byte
switch v := value.(type) {
case string:
bytes = []byte(v)
case []byte:
bytes = v
default:
return fmt.Errorf("cannot scan type %T into JSON", value)
}
return json.Unmarshal(bytes, j)
}
// Base 公共字段
type Base struct {
ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
DeletedAt *time.Time `gorm:"index" json:"-"`
}
// TenantBase 含租户隔离的公共字段
type TenantBase struct {
Base
HotelID uint64 `gorm:"not null;index" json:"hotel_id"`
}
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package model
import "time"
type FinanceRecord struct {
Base
HotelID uint64 `gorm:"not null;index" json:"hotel_id"`
PartnerID *uint64 `json:"partner_id"`
Type string `gorm:"type:enum('receivable','payable','receipt','payment')" json:"type"`
Amount float64 `gorm:"type:decimal(14,2)" json:"amount"`
Balance float64 `gorm:"type:decimal(14,2)" json:"balance"`
RefType string `gorm:"size:30" json:"ref_type"`
RefID *uint64 `json:"ref_id"`
OperatorID uint64 `gorm:"not null" json:"operator_id"`
RecordDate time.Time `gorm:"type:date" json:"record_date"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:500" json:"remark"`
Partner *Partner `gorm:"foreignKey:PartnerID" json:"partner,omitempty"`
}
type NumberRule struct {
ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
HotelID uint64 `gorm:"not null;uniqueIndex:uk_hotel_type" json:"hotel_id"`
Type string `gorm:"size:30;uniqueIndex:uk_hotel_type" json:"type"`
Prefix string `gorm:"size:20;default:''" json:"prefix"`
CurrentNo int `gorm:"default:0" json:"current_no"`
DateFormat string `gorm:"size:20;default:'YYYYMMDD'" json:"date_format"`
UpdatedAt time.Time `json:"updated_at"`
}
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package model
type Hotel struct {
Base
Name string `gorm:"size:100;not null" json:"name"`
Code string `gorm:"size:50;uniqueIndex" json:"code"`
Address string `gorm:"size:255" json:"address"`
Phone string `gorm:"size:30" json:"phone"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
}
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package model
import "time"
type License struct {
Base
HotelID uint64 `gorm:"not null;index" json:"hotel_id"`
LicenseKey string `gorm:"size:255;uniqueIndex" json:"license_key"`
DeviceID string `gorm:"size:255" json:"device_id"`
Type string `gorm:"type:enum('trial','annual','lifetime');default:'trial'" json:"type"`
ExpiresAt *time.Time `json:"expires_at"`
IsActive bool `gorm:"default:true" json:"is_active"`
Features JSON `gorm:"type:json" json:"features,omitempty"`
ActivatedAt *time.Time `json:"activated_at"`
}
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package model
type Partner struct {
TenantBase
Code string `gorm:"size:50" json:"code"`
Name string `gorm:"size:200;not null" json:"name"`
Type string `gorm:"type:set('supplier','customer');default:'supplier'" json:"type"`
Contact string `gorm:"size:50" json:"contact"`
Phone string `gorm:"size:30" json:"phone"`
Address string `gorm:"size:255" json:"address"`
BankAccount string `gorm:"size:100" json:"bank_account"`
CreditLimit float64 `gorm:"type:decimal(12,2)" json:"credit_limit"`
Balance float64 `gorm:"type:decimal(12,2);default:0" json:"balance"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:500" json:"remark"`
}
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package model
type ProductCategory struct {
TenantBase
Name string `gorm:"size:100;not null" json:"name"`
ParentID *uint64 `json:"parent_id"`
SortOrder int `gorm:"default:0" json:"sort_order"`
}
type Product struct {
TenantBase
Code string `gorm:"size:50" json:"code"`
Barcode string `gorm:"size:100" json:"barcode"`
Name string `gorm:"size:200;not null" json:"name"`
Series string `gorm:"size:100" json:"series"`
Spec string `gorm:"size:100" json:"spec"`
Unit string `gorm:"size:20" json:"unit"`
CategoryID *uint64 `json:"category_id"`
Brand string `gorm:"size:100" json:"brand"`
PurchasePrice float64 `gorm:"type:decimal(12,2)" json:"purchase_price"`
SalePrice float64 `gorm:"type:decimal(12,2)" json:"sale_price"`
MinStock int `gorm:"default:0" json:"min_stock"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:500" json:"remark"`
Category *ProductCategory `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
}
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package model
import "time"
// -------- 入库单 --------
type StockInOrder struct {
TenantBase
OrderNo string `gorm:"size:50;uniqueIndex:uk_hotel_order_no" json:"order_no"`
Type string `gorm:"size:30;default:'purchase'" json:"type"`
WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
PartnerID *uint64 `json:"partner_id"`
OperatorID uint64 `gorm:"not null" json:"operator_id"`
ReviewerID *uint64 `json:"reviewer_id"`
Status string `gorm:"type:enum('draft','pending','approved','rejected');default:'draft'" json:"status"`
OrderDate time.Time `gorm:"type:date" json:"order_date"`
TotalAmount float64 `gorm:"type:decimal(14,2);default:0" json:"total_amount"`
ReviewedAt *time.Time `json:"reviewed_at"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:500" json:"remark"`
Items []StockInItem `gorm:"foreignKey:OrderID" json:"items,omitempty"`
Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
Partner *Partner `gorm:"foreignKey:PartnerID" json:"partner,omitempty"`
Operator *User `gorm:"foreignKey:OperatorID" json:"operator,omitempty"`
}
type StockInItem struct {
Base
OrderID uint64 `gorm:"not null;index" json:"order_id"`
HotelID uint64 `gorm:"not null" json:"hotel_id"`
ProductID uint64 `gorm:"not null" json:"product_id"`
Quantity float64 `gorm:"type:decimal(12,3);not null" json:"quantity"`
UnitPrice float64 `gorm:"type:decimal(12,2);default:0" json:"unit_price"`
TotalPrice float64 `gorm:"type:decimal(14,2);default:0" json:"total_price"`
BatchNo string `gorm:"size:50" json:"batch_no"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:255" json:"remark"`
Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
}
// -------- 出库单 --------
type StockOutOrder struct {
TenantBase
OrderNo string `gorm:"size:50;uniqueIndex:uk_hotel_order_no" json:"order_no"`
Type string `gorm:"size:30;default:'sale'" json:"type"`
WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
PartnerID *uint64 `json:"partner_id"`
OperatorID uint64 `gorm:"not null" json:"operator_id"`
ReviewerID *uint64 `json:"reviewer_id"`
Status string `gorm:"type:enum('draft','pending','approved','rejected');default:'draft'" json:"status"`
OrderDate time.Time `gorm:"type:date" json:"order_date"`
TotalAmount float64 `gorm:"type:decimal(14,2);default:0" json:"total_amount"`
ReviewedAt *time.Time `json:"reviewed_at"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:500" json:"remark"`
Items []StockOutItem `gorm:"foreignKey:OrderID" json:"items,omitempty"`
Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
Partner *Partner `gorm:"foreignKey:PartnerID" json:"partner,omitempty"`
Operator *User `gorm:"foreignKey:OperatorID" json:"operator,omitempty"`
}
type StockOutItem struct {
Base
OrderID uint64 `gorm:"not null;index" json:"order_id"`
HotelID uint64 `gorm:"not null" json:"hotel_id"`
ProductID uint64 `gorm:"not null" json:"product_id"`
Quantity float64 `gorm:"type:decimal(12,3);not null" json:"quantity"`
UnitPrice float64 `gorm:"type:decimal(12,2);default:0" json:"unit_price"`
TotalPrice float64 `gorm:"type:decimal(14,2);default:0" json:"total_price"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
Remark string `gorm:"size:255" json:"remark"`
Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
}
// -------- 实时库存 --------
type Inventory struct {
ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
HotelID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"hotel_id"`
WarehouseID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"warehouse_id"`
ProductID uint64 `gorm:"not null;uniqueIndex:uk_hotel_wh_product" json:"product_id"`
Quantity float64 `gorm:"type:decimal(12,3);default:0" json:"quantity"`
UpdatedAt time.Time `json:"updated_at"`
Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
Warehouse *Warehouse `gorm:"foreignKey:WarehouseID" json:"warehouse,omitempty"`
}
// -------- 库存流水 --------
type InventoryLog struct {
ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
HotelID uint64 `gorm:"not null;index:idx_hotel_product" json:"hotel_id"`
WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
ProductID uint64 `gorm:"not null;index:idx_hotel_product" json:"product_id"`
Direction string `gorm:"type:enum('in','out')" json:"direction"`
Quantity float64 `gorm:"type:decimal(12,3)" json:"quantity"`
QtyBefore float64 `gorm:"type:decimal(12,3)" json:"qty_before"`
QtyAfter float64 `gorm:"type:decimal(12,3)" json:"qty_after"`
RefType string `gorm:"size:30" json:"ref_type"`
RefID uint64 `json:"ref_id"`
OperatorID *uint64 `json:"operator_id"`
CreatedAt time.Time `json:"created_at"`
}
// -------- 库存盘点 --------
type InventoryCheck struct {
TenantBase
CheckNo string `gorm:"size:50;uniqueIndex:uk_hotel_check_no" json:"check_no"`
WarehouseID uint64 `gorm:"not null" json:"warehouse_id"`
OperatorID uint64 `gorm:"not null" json:"operator_id"`
Status string `gorm:"type:enum('draft','completed');default:'draft'" json:"status"`
CheckDate time.Time `gorm:"type:date" json:"check_date"`
Remark string `gorm:"size:500" json:"remark"`
Items []InventoryCheckItem `gorm:"foreignKey:CheckID" json:"items,omitempty"`
}
type InventoryCheckItem struct {
Base
CheckID uint64 `gorm:"not null;index" json:"check_id"`
HotelID uint64 `gorm:"not null" json:"hotel_id"`
ProductID uint64 `gorm:"not null" json:"product_id"`
SystemQty float64 `gorm:"type:decimal(12,3)" json:"system_qty"`
ActualQty float64 `gorm:"type:decimal(12,3)" json:"actual_qty"`
DiffQty float64 `gorm:"->" json:"diff_qty"` // generated column,只读
Remark string `gorm:"size:255" json:"remark"`
Product *Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
}
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package model
type User struct {
TenantBase
Username string `gorm:"size:50;uniqueIndex:uk_hotel_username" json:"username"`
PasswordHash string `gorm:"size:255" json:"-"`
RealName string `gorm:"size:50" json:"real_name"`
Phone string `gorm:"size:30" json:"phone"`
Role string `gorm:"type:enum('admin','operator');default:'operator'" json:"role"`
IsActive bool `gorm:"default:true" json:"is_active"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
}
type OAuthProvider struct {
Base
UserID uint64 `gorm:"not null;index" json:"user_id"`
Provider string `gorm:"type:enum('wechat','google','apple')" json:"provider"`
ProviderUserID string `gorm:"size:255" json:"provider_user_id"`
AccessToken string `gorm:"type:text" json:"-"`
RefreshToken string `gorm:"type:text" json:"-"`
}
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package model
type Warehouse struct {
TenantBase
Name string `gorm:"size:100;not null" json:"name"`
Location string `gorm:"size:200" json:"location"`
IsDefault bool `gorm:"default:false" json:"is_default"`
CustomFields JSON `gorm:"type:json" json:"custom_fields,omitempty"`
}