GO/app/model/contractPurchase.go

package model

import (
	"database/sql"
	"github.com/shopspring/decimal"
	"time"
)

const (
	ContractPurchaseChannelBusiness = 1 // 收购渠道入驻商
	ContractPurchaseChannelDealer   = 2 // 收购渠道车商
)

type ContractPurchase struct {
	Id         uint `gorm:"primaryKey"`
	BrokerId   uint
	Channel    uint                // 收购渠道 1=入驻商 2=车商
	Broker     Broker              `gorm:"foreignKey:BrokerId"`
	DealerId   uint                // 车商id
	Dealer     BrokerBusinessStore `gorm:"foreignKey:DealerId"`
	CustomerId uint                // 客户id
	Customer   Customer            `gorm:"foreignKey:CustomerId"`

	ContractSn              string              // 合同编码
	EssFlow                 ThirdTencentEssFlow `gorm:"foreignKey:ContractId"`
	Vin                     string              // 车架号
	ModelId                 uint                // 车型id
	Model                   CarModel            `gorm:"foreignKey:ModelId;references:ModelId"`
	LicensingDate           sql.NullTime        // 上牌日期
	LicensePlate            string              // 车牌
	Color                   string              // 车身颜色
	EngineNo                string              // 发动机号
	UseCharacter            uint                // 使用性质
	Mileage                 decimal.Decimal     // 里程
	CompulsoryInsuranceDate sql.NullTime        // 交强险到期日期
	Condition               string              // 车况

	DealPrice          decimal.Decimal // 成交金额
	DownPayment        decimal.Decimal //  首付
	BalancePayment     decimal.Decimal // 尾款
	DownPaymentRate    decimal.Decimal // 首付占比
	BalancePaymentRate decimal.Decimal // 尾款占比
	DeliverDate        sql.NullTime    // 交付日期

	Photos []ContractPurchasePhoto `gorm:"foreignKey:OrderId;References:Id"`

	DealerAuditId uint           // 车商审核
	DealerAudit   DealerAuditing `gorm:"foreignKey:DealerAuditId"`
	Status        uint           // 状态
	MasterId      uint
	Master        ContractMaster `gorm:"foreignKey:MasterId"`
	SignAt        sql.NullTime   // 签订时间
	CancelAt      sql.NullTime   // 取消时间
	CreatedAt     time.Time
	UpdatedAt     time.Time
}

func (*ContractPurchase) GetChannelName(ch uint) (result string) {
	switch ch {
	case ContractPurchaseChannelBusiness:
		return "入驻商"
	case ContractPurchaseChannelDealer:
		return "车商"
	default:
		return "未知"
	}
}