130 lines
3.1 KiB
Go
130 lines
3.1 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/requests"
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"knowledge/global"
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"strconv"
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)
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type QuestionQaItemService struct {
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}
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// DeleteQuestionQaItem 删除问答题库明细
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func (r *QuestionQaItemService) DeleteQuestionQaItem(req requests.DeleteQuestionQaItem) (bool, error) {
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questionQaItemDao := dao.QuestionQaItemDao{}
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qaId, err := strconv.ParseInt(req.QaId, 10, 64)
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if err != nil {
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return false, errors.New("删除失败")
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}
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// 获取题库数据
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questionQaDao := dao.QuestionQaDao{}
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questionQa, err := questionQaDao.GetQuestionQaById(qaId)
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if err != nil {
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return false, errors.New("题库错误")
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}
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// 获取题库明细数据
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questionQaItems, err := questionQaItemDao.GetQuestionQaItemListByQaId(qaId)
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if err != nil {
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return false, errors.New("题库错误")
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}
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// 检测剩余题目数量是否满足使用
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if questionQa.QaQuantity > (len(questionQaItems) - len(req.ItemId)) {
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return false, errors.New("删除后剩余题目不满足题库使用")
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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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for _, itemId := range req.ItemId {
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// 将字符串转换为int64类型
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itemId, err := strconv.ParseInt(itemId, 10, 64)
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if err != nil {
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tx.Rollback()
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return false, errors.New("删除失败")
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}
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_, err = questionQaItemDao.GetQuestionQaItemById(itemId)
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if err != nil {
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tx.Rollback()
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return false, errors.New("明细不存在")
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}
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err = questionQaItemDao.DeleteQuestionQaItemById(tx, itemId)
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if err != nil {
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tx.Rollback()
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return false, errors.New("删除失败")
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}
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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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// PutQuestionQaItemMust 修改必选
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func (r *QuestionQaItemService) PutQuestionQaItemMust(itemId int64, req requests.PutQuestionQaItemMust) (bool, error) {
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questionQaItemDao := dao.QuestionQaItemDao{}
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questionQaItem, err := questionQaItemDao.GetQuestionQaItemById(itemId)
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if err != nil {
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return false, errors.New("题目不存在")
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}
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// 分享密码
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if req.IsMustSelect == questionQaItem.IsMustSelect {
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return true, nil
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}
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// 检测必选数量
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if req.IsMustSelect == 1 {
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// 获取题库数据
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questionQaDao := dao.QuestionQaDao{}
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questionQa, err := questionQaDao.GetQuestionQaById(questionQaItem.QaId)
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if err != nil {
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return false, errors.New("题库错误")
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}
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maps := make(map[string]interface{})
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maps["qa_id"] = questionQaItem.QaId
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maps["is_must_select"] = 1
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questionQaItems, err := questionQaItemDao.GetQuestionQaItemList(maps)
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if err != nil {
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return false, errors.New("内部错误")
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}
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if len(questionQaItems) >= questionQa.QaQuantity {
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return false, errors.New("必选题目已超出题库所需数量")
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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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questionQaItemData := make(map[string]interface{})
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questionQaItemData["is_must_select"] = req.IsMustSelect
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err = questionQaItemDao.EditQuestionQaItemById(tx, itemId, questionQaItemData)
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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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