back/internal/api/manage/goods/photo_update.go

package goods

import (
	"github.com/gin-gonic/gin"
	"recook/internal/back"
	"recook/internal/dbc"
	"recook/internal/model/goods"
	"recook/tools"
)

type savePhotoParam struct {
	GoodsId uint    `json:"goodsId" validate:"required"`
	Photos  []photo `json:"photos" validate:"required"`
}

type photo struct {
	Path   string `json:"path" validate:"required"`
	Width  uint   `json:"width" validate:"required"`
	Height uint   `json:"height" validate:"required"`
	Name   string `json:"name"`
}

/*
保存主图
*/
func SaveGoodsMainPhoto(c *gin.Context) {
	var p savePhotoParam
	if err := tools.Params(&p, c); err != nil {
		back.Fail(c, err.Error())
		return
	}

	if len(p.Photos) == 0 {
		back.Fail(c, "商品至少有一张主图")
		return
	}

	var photos []goods.MainPhoto
	dbc.DB.Find(&photos, "goods_id = ?", p.GoodsId)

	tx := dbc.DB.Begin()
	{
		for _, v := range photos {
			if err := tx.Delete(&v).Error; err != nil {
				tx.Rollback()
				back.Err(c, err.Error())
				return
			}
		}

		for i, v := range p.Photos {
			isMaster := 0
			if i == 0 {
				isMaster = 1
			}

			one := goods.MainPhoto{
				GoodsID:  p.GoodsId,
				URL:      v.Path,
				IsMaster: uint(isMaster),
				OrderNo:  uint(i),
				Width:    v.Width,
				Height:   v.Height,
				Name:     v.Name,
			}

			if err := tx.Create(&one).Error; err != nil {
				tx.Rollback()
				back.Err(c, err.Error())
				return
			}
		}
	}
	tx.Commit()

	back.Suc(c, "", nil)
}

func SaveGoodsDetailPhotos(c *gin.Context) {
	var p savePhotoParam
	if err := tools.Params(&p, c); err != nil {
		back.Fail(c, err.Error())
		return
	}

	if len(p.Photos) == 0 {
		back.Fail(c, "商品至少有一张详情图片")
		return
	}

	var photos []goods.DetailPhoto
	dbc.DB.Find(&photos, "goods_id = ?", p.GoodsId)

	tx := dbc.DB.Begin()
	{
		for _, v := range photos {
			if err := tx.Delete(&v).Error; err != nil {
				tx.Rollback()
				back.Err(c, err.Error())
				return
			}
		}

		for i, v := range p.Photos {
			one := goods.DetailPhoto{
				GoodsID: p.GoodsId,
				URL:     v.Path,
				OrderNo: uint(i),
				Width:   v.Width,
				Height:  v.Height,
				Name:    v.Name,
			}

			if err := tx.Create(&one).Error; err != nil {
				tx.Rollback()
				back.Err(c, err.Error())
				return
			}
		}
	}
	tx.Commit()

	back.Suc(c, "", nil)
}