fix:合并

model/gmodel/fs_shopping_cart_logic.go

@@ -1,2 +1,88 @@
 package gmodel
-// TODO: 使用model的属性做你想做的
+
+import "context"
+
+// 获取单个
+func (s *FsShoppingCartModel) FindOne(ctx context.Context, id int64, fields ...string) (resp *FsShoppingCart, err error) {
+	db := s.db.WithContext(ctx).Where("id = ?", id)
+	if len(fields) > 0 {
+		db = db.Select(fields[0])
+	}
+	err = db.Take(&resp).Error
+	return resp, err
+}
+
+// 获取用户购物车指定item
+func (s *FsShoppingCartModel) FineOneUserCart(ctx context.Context, id, userId int64, fields ...string) (resp *FsShoppingCart, err error) {
+	db := s.db.WithContext(ctx).Where("user_id = ? and id = ?", userId, id)
+	if len(fields) > 0 {
+		db = db.Select(fields[0])
+	}
+	err = db.Take(&resp).Error
+	return resp, err
+}
+
+// 创建
+func (s *FsShoppingCartModel) Create(ctx context.Context, data *FsShoppingCart) error {
+	return s.db.WithContext(ctx).Create(&data).Error
+}
+
+// 更新
+func (s *FsShoppingCartModel) Update(ctx context.Context, id, userId int64, data *FsShoppingCart) error {
+	return s.db.WithContext(ctx).Where("user_id = ? and id = ?", userId, id).Updates(&data).Error
+}
+
+// 获取用户购物车数量
+func (s *FsShoppingCartModel) CountUserCart(ctx context.Context, userId int64) (total int64, err error) {
+	err = s.db.WithContext(ctx).Where("user_id = ?", userId).Limit(1).Count(&total).Error
+	return total, err
+}
+
+// 获取多个
+func (s *FsShoppingCartModel) GetAllByIds(ctx context.Context, ids []int64, sort string, fields ...string) (resp []FsShoppingCart, err error) {
+	if len(ids) == 0 {
+		return
+	}
+	db := s.db.WithContext(ctx).Where("id in (?)", ids)
+	if len(fields) > 0 {
+		db = db.Select(fields[0])
+	}
+	if sort != "" {
+		db = db.Order(sort)
+	}
+	err = db.Find(&resp).Error
+	return resp, err
+}
+
+// 获取用户所有的购物车
+type GetAllCartsByParamReq struct {
+	Ids    []int64 //id集合
+	UserId int64   //用户id
+	Fields string  //筛选的字段
+	Sort   string  //排序
+	Page   int     //当前页
+	Limit  int     //每页数量
+}
+
+func (s *FsShoppingCartModel) GetAllCartsByParam(ctx context.Context, req GetAllCartsByParamReq) (resp []FsShoppingCart, total int64, err error) {
+	db := s.db.WithContext(ctx)
+	if req.UserId > 0 {
+		db = db.Where("user_id = ?", req.UserId)
+	}
+	if len(req.Ids) > 0 {
+		db = db.Where("id in (?)", req.Ids)
+	}
+	if req.Fields != "" {
+		db = db.Select(req.Fields)
+	}
+	if req.Sort != "" {
+		db = db.Order(req.Sort)
+	}
+	//查询数量
+	if err = db.Limit(1).Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+	offset := (req.Page - 1) * req.Limit
+	err = db.Offset(offset).Limit(req.Limit).Find(&resp).Error
+	return resp, total, err
+}