68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
package mysqldao
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import (
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"context"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/global"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/mysqlmodel"
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"gorm.io/gorm"
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)
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// GoodsDao 商品数据访问
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type GoodsDao struct {
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db *gorm.DB
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}
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// NewGoodsDao 创建商品 DAO
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func NewGoodsDao() *GoodsDao {
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return &GoodsDao{db: global.MysqlEngine}
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}
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// GoodsGetByCode 按商品编码查询商品
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func (d *GoodsDao) GoodsGetByCode(ctx context.Context, code string) (*mysqlmodel.Goods, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.GoodsGetByCode")
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defer span.End()
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var goods mysqlmodel.Goods
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if err := d.db.WithContext(ctx).Where("goods_code = ?", code).First(&goods).Error; err != nil {
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span.RecordError(err)
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return nil, err
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}
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return &goods, nil
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}
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// GoodsGetByID 按主键 ID 查询商品
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func (d *GoodsDao) GoodsGetByID(ctx context.Context, id int64) (*mysqlmodel.Goods, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.GoodsGetByID")
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defer span.End()
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var goods mysqlmodel.Goods
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if err := d.db.WithContext(ctx).First(&goods, id).Error; err != nil {
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span.RecordError(err)
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return nil, err
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}
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return &goods, nil
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}
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// GoodsList 分页查询上架商品（goodsType 为 0 不筛选）
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func (d *GoodsDao) GoodsList(ctx context.Context, goodsType int8, page, pageSize int) ([]mysqlmodel.Goods, int64, error) {
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ctx, span := global.Tracer.Start(ctx, "mysqldao.GoodsList")
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defer span.End()
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var list []mysqlmodel.Goods
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var total int64
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q := d.db.WithContext(ctx).Model(&mysqlmodel.Goods{}).Where("status = ?", int8(1))
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if goodsType != 0 {
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q = q.Where("goods_type = ?", goodsType)
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}
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if err := q.Count(&total).Error; err != nil {
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span.RecordError(err)
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return nil, 0, err
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}
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if err := q.Offset((page - 1) * pageSize).Limit(pageSize).Order("id DESC").Find(&list).Error; err != nil {
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span.RecordError(err)
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return nil, 0, err
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}
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return list, total, nil
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}
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