gobackend-qingma/entity/fcode.go

package entity

import (
	"time"

	"gopkg.in/guregu/null.v3"

	"xiaoniaokuaiyan.com/xiaoniao/cerror"
	"xiaoniaokuaiyan.com/xiaoniao/constants"
)

type Fcode struct {
	Id              int         `db:"id"`
	TypeId          int         `db:"type_id"`
	CodeStr         string      `db:"code_str"`
	TicketValue     int         `db:"ticket_value"`
	UseMaxValue     int         `db:"use_max_value"`
	UseNum          int         `db:"use_num"`
	AlreadyUseNum   int         `db:"already_use_num"`
	Deadline        string      `db:"deadline"`
	TicketDeadline  string      `db:"ticket_deadline"`
	CreatedAt       string      `db:"createdAt"`
	Remark          null.String `db:"remark" json:"remark"`
	BindProducts    null.String `db:"bind_products"`
	Usefor          null.String `db:"usefor" json:"usefor"`
	TicketValidDays null.Int    `db:"ticket_valid_days" json:"ticket_valid_days"`
}

func (codeItem *Fcode) Valid() cerror.CError {
	deadline, _ := time.Parse("2006-01-02", codeItem.Deadline)
	if deadline.Before(time.Now().AddDate(0, 0, -1)) {
		return cerror.New(constants.ERRORCODE_FCODE_EXPIRED, "code has expired|"+codeItem.Deadline)
	}
	if codeItem.AlreadyUseNum >= codeItem.UseNum {
		return cerror.New(constants.ERRORCODE_FCODE_UPEXCEED, "码的使用次数已达到上限")
	}
	return nil
}