fusenapi/model/gmodel/fs_product_recommend_logic.go

package gmodel

import (
	"context"
	"errors"
	"gorm.io/gorm"
)

type GetRecommendProductListReq struct {
	Ctx   context.Context
	Page  int
	Limit int
}

func (r *FsProductRecommendModel) GetRecommendProductList(req GetRecommendProductListReq) (resp []FsProduct, total int64, err error) {
	db := r.db.WithContext(req.Ctx).
		Table("fs_product_recommend as r").
		Joins("inner join fs_product as p on r.product_id = p.id").
		Where("r.status = ? ", 1).
		Where("p.is_shelf = ? and p.is_del = ? and p.status = ?", 1, 0, 1)
	if err = db.Limit(1).Count(&total).Error; err != nil {
		return nil, 0, err
	}
	db = db.Select("p.*")
	offset := (req.Page - 1) * req.Limit
	err = db.Offset(offset).Limit(req.Limit).Find(&resp).Error
	return resp, total, err
}
func (r *FsProductRecommendModel) CreateOrUpdate(ctx context.Context, productId int64, data *FsProductRecommend) error {
	var info FsProductRecommend
	err := r.db.WithContext(ctx).Model(&FsProductRecommend{}).Where("`product_id` = ?", productId).Take(&info).Error
	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
		return err
	}
	if info.Id == 0 {
		return r.db.WithContext(ctx).Model(&FsProductRecommend{}).Create(data).Error
	}
	return r.db.WithContext(ctx).Model(&FsProductRecommend{}).Where("`product_id` = ?", productId).Updates(data).Error
}