99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
package service
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import (
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"strconv"
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"yitao/ecode"
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"yitao/model"
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)
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type ItemService struct{}
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func (s *ItemService) CreateItem(uid uint, itemname string, desc string, types []int, imgs []string, price int) (item *model.ItemModel, e *ecode.Ecode) {
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item = new(model.ItemModel)
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e = ecode.OK()
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item.Itemname = itemname
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item.Desc = desc
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item.Types = types
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item.Imgs = imgs
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item.Price = price
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item.State = model.ItemStateOnSale
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item.Uid = uid
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model.DB.Create(item)
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if item.ID == 0 {
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return nil, ecode.Item(ecode.ITEM_CREATE_ERR)
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}
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return
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}
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func (s *ItemService) DeleteItem(uid uint, item_id uint) *ecode.Ecode {
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item := new(model.ItemModel)
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model.DB.Where("id=?", item_id).First(item)
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if item.Uid != uid {
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return ecode.Item(ecode.ITEM_PERMISSION_DENIED)
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}
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// 将商品状态设置为删除
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item.State = model.ItemStateDelete
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model.DB.Save(item)
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return ecode.OK()
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}
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func (s *ItemService) GetItem(id uint) (item *model.ItemModel, e *ecode.Ecode) {
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item = new(model.ItemModel)
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e = ecode.OK()
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model.DB.Where("id=?", id).Where("state!=?", model.ItemStateDelete).First(item)
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if item.ID == 0 {
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return item, ecode.Item(ecode.ITEM_NOT_FOUND)
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}
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return
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}
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func (s *ItemService) GetItems(ttype int, page int, page_size int) (items []model.ItemModel, e *ecode.Ecode) {
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e = ecode.OK()
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model.DB.Where("state!=?", model.ItemStateDelete).Where("types like ?", "%"+strconv.Itoa(ttype)+"%").Offset((page - 1) * page_size).Limit(page_size).Find(&items)
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return
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}
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func (s *ItemService) Search(keyword string, page int, page_size int) (items []model.ItemModel, e *ecode.Ecode) {
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e = ecode.OK()
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model.DB.Where("state!=?", model.ItemStateDelete).Where("itemname like ?", "%"+keyword+"%").Offset((page - 1) * page_size).Limit(page_size).Find(&items)
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return
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}
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// 历史记录模块
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/*********************************************************************************/
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func (s *ItemService) PutHistory(uid uint, item_id uint) *ecode.Ecode {
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h := new(model.HistoryModel)
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// 查看以前共有几条纪录
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var c int64
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model.DB.Model(h).Where("user_id=? and item_id=?", uid, item_id).Count(&c)
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h.UserId = uid
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h.ItemId = item_id
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h.Count = int(c) + 1
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model.DB.Create(h)
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return ecode.OK()
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}
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// 类型服务模块
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/*********************************************************************************/
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func (s *ItemService) GetTypes() (types []model.TypeModel, e *ecode.Ecode) {
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e = ecode.OK()
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model.DB.Find(&types)
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return
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}
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func (s *ItemService) CreateType(name string) *ecode.Ecode {
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t := new(model.TypeModel)
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// 判断该名称是否已存在
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model.DB.Where("name=?", name).First(t)
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if t.ID != 0 {
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return ecode.Item(ecode.ITEM_TYPE_EXIST)
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}
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t.Name = name
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model.DB.Create(t)
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return ecode.OK()
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}
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