jiu/backend/internal/model/stock.go

package model

import "time"

// -------- 入库单 --------

type StockInOrder struct {
	TenantBase
	OrderNo      string     `gorm:"size:50;uniqueIndex:uk_shop_order_no" json:"order_no"`
	Type         string     `gorm:"size:30;default:'purchase'" json:"type"`
	WarehouseID  uint64     `gorm:"not null" json:"warehouse_id" binding:"required,min=1"`
	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    Date       `gorm:"type:date" json:"order_date"`
	TotalAmount  float64    `gorm:"type:decimal(16,2);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"`
	ShopID       uint64  `gorm:"not null" json:"shop_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(16,2);default:0" json:"unit_price"`
	TotalPrice   float64 `gorm:"type:decimal(16,2);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_shop_order_no" json:"order_no"`
	Type         string     `gorm:"size:30;default:'sale'" json:"type"`
	WarehouseID  uint64     `gorm:"not null" json:"warehouse_id" binding:"required,min=1"`
	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    Date       `gorm:"type:date" json:"order_date"`
	TotalAmount  float64    `gorm:"type:decimal(16,2);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"`
	ShopID       uint64  `gorm:"not null" json:"shop_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(16,2);default:0" json:"unit_price"`
	TotalPrice   float64 `gorm:"type:decimal(16,2);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"`
	ShopID      uint64    `gorm:"not null;uniqueIndex:uk_shop_wh_product" json:"shop_id"`
	WarehouseID uint64    `gorm:"not null;uniqueIndex:uk_shop_wh_product" json:"warehouse_id"`
	ProductID   uint64    `gorm:"not null;uniqueIndex:uk_shop_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"`
	ShopID      uint64    `gorm:"not null;index:idx_shop_product" json:"shop_id"`
	WarehouseID uint64    `gorm:"not null" json:"warehouse_id"`
	ProductID   uint64    `gorm:"not null;index:idx_shop_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_shop_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   Date      `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"`
	ShopID    uint64  `gorm:"not null" json:"shop_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"`
}