89 lines
1.7 KiB
Go
89 lines
1.7 KiB
Go
package service
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import (
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"errors"
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"knowledge/api/dao"
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"knowledge/api/model"
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"knowledge/api/requests"
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"knowledge/global"
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"strconv"
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)
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type LabelService struct {
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}
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// AddLabel 新增标签
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func (r *LabelService) AddLabel(req requests.AddLabel) (bool, error) {
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labelDao := dao.LabelDao{}
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var parentId int64
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if req.LabelLevel != 1 {
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if req.ParentId == "" || req.ParentId == "0" {
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return false, errors.New("请填写父级标签")
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}
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parentId, err := strconv.ParseInt(req.ParentId, 10, 64)
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if err != nil {
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return false, err
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}
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_, err = labelDao.GetLabelFirstById(parentId)
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if err != nil {
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return false, errors.New("父级标签错误")
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}
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}
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// 开始事务
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tx := global.Db.Begin()
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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}
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}()
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// 新增题目
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label := &model.Label{
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LabelName: req.LabelName,
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ParentId: parentId,
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LabelLevel: req.LabelLevel,
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}
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label, err := labelDao.AddLabel(tx, label)
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if err != nil {
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tx.Rollback()
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return false, errors.New("新增失败")
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}
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tx.Commit()
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return true, nil
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}
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// PutLabel 修改标签
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func (r *LabelService) PutLabel(labelId int64, req requests.PutLabel) (bool, error) {
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labelDao := dao.LabelDao{}
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_, err := labelDao.GetLabelFirstById(labelId)
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if err != nil {
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return false, errors.New("标签不存在")
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}
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// 开始事务
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tx := global.Db.Begin()
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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}
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}()
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labelData := make(map[string]interface{})
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labelData["label_name"] = req.LabelName
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err = labelDao.EditLabelById(tx, labelId, labelData)
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if err != nil {
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tx.Rollback()
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return false, errors.New(err.Error())
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}
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tx.Commit()
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return true, nil
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}
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