103 lines
3.3 KiB
Go
103 lines
3.3 KiB
Go
package gmodel
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import (
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"context"
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)
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type RelaFsShoppingCart struct {
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FsShoppingCart
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ShoppingCartProduct *RelaFsProduct `json:"shopping_cart_product" gorm:"foreignkey:product_id;references:id"`
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ShoppingCartProductPriceList []*FsProductPrice `json:"shopping_cart_product_price_list" gorm:"foreignkey:product_id;references:product_id"`
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ShoppingCartProductModel3dList []*FsProductModel3d `json:"shopping_cart_product_model3d_list" gorm:"foreignkey:product_id;references:product_id"`
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}
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// 获取单个
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func (s *FsShoppingCartModel) FindOne(ctx context.Context, id int64, fields ...string) (resp *FsShoppingCart, err error) {
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db := s.db.WithContext(ctx).Where("id = ?", id)
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if len(fields) > 0 {
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db = db.Select(fields[0])
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}
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err = db.Take(&resp).Error
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return resp, err
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}
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// 获取用户购物车指定item
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func (s *FsShoppingCartModel) FineOneUserCart(ctx context.Context, id, userId int64, fields ...string) (resp *FsShoppingCart, err error) {
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db := s.db.WithContext(ctx).Where("user_id = ? and id = ?", userId, id)
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if len(fields) > 0 {
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db = db.Select(fields[0])
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}
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err = db.Take(&resp).Error
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return resp, err
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}
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// 创建
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func (s *FsShoppingCartModel) Create(ctx context.Context, data *FsShoppingCart) error {
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return s.db.WithContext(ctx).Model(&FsShoppingCart{}).Create(&data).Error
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}
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// 删除
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func (s *FsShoppingCartModel) Delete(ctx context.Context, id, userId int64) error {
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return s.db.WithContext(ctx).Model(&FsShoppingCart{}).Where("user_id = ? and id = ?", userId, id).Delete(&FsShoppingCart{}).Error
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}
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// 更新
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func (s *FsShoppingCartModel) Update(ctx context.Context, id, userId int64, data *FsShoppingCart) error {
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return s.db.WithContext(ctx).Model(&FsShoppingCart{}).Where("user_id = ? and id = ?", userId, id).Updates(&data).Error
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}
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// 获取用户购物车数量
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func (s *FsShoppingCartModel) CountUserCart(ctx context.Context, userId int64) (total int64, err error) {
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err = s.db.WithContext(ctx).Model(&FsShoppingCart{}).Where("user_id = ?", userId).Limit(1).Count(&total).Error
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return total, err
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}
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// 获取多个
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func (s *FsShoppingCartModel) GetAllByIds(ctx context.Context, ids []int64, sort string, fields ...string) (resp []FsShoppingCart, err error) {
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if len(ids) == 0 {
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return
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}
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db := s.db.WithContext(ctx).Model(&FsShoppingCart{}).Where("id in (?)", ids)
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if len(fields) > 0 {
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db = db.Select(fields[0])
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}
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if sort != "" {
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db = db.Order(sort)
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}
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err = db.Find(&resp).Error
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return resp, err
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}
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// 获取用户所有的购物车
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type GetAllCartsByParamReq struct {
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Ids []int64 //id集合
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UserId int64 //用户id
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Fields string //筛选的字段
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Sort string //排序
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Page int //当前页
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Limit int //每页数量
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}
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func (s *FsShoppingCartModel) GetAllCartsByParam(ctx context.Context, req GetAllCartsByParamReq) (resp []FsShoppingCart, total int64, err error) {
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db := s.db.WithContext(ctx).Model(&FsShoppingCart{})
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if req.UserId > 0 {
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db = db.Where("user_id = ?", req.UserId)
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}
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if len(req.Ids) > 0 {
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db = db.Where("id in (?)", req.Ids)
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}
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if req.Fields != "" {
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db = db.Select(req.Fields)
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}
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if req.Sort != "" {
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db = db.Order(req.Sort)
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}
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//查询数量
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if err = db.Limit(1).Count(&total).Error; err != nil {
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return nil, 0, err
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}
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offset := (req.Page - 1) * req.Limit
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err = db.Offset(offset).Limit(req.Limit).Find(&resp).Error
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return resp, total, err
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}
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