// 添加或更新标签, 先查下是否存在, 不存在则添加, 存在则更新
// 都要统计下tag的note数
// 什么时候调用? 笔记添加Tag, 删除Tag时
// 删除note时, 都可以调用
// 万能
func (this *TagService) AddOrUpdateTag(userId string, tag string) info.NoteTag {
userIdO := bson.ObjectIdHex(userId)
noteTag := info.NoteTag{}
db.GetByQ(db.NoteTags, bson.M{"UserId": userIdO, "Tag": tag}, ¬eTag)
// 存在, 则更新之
if noteTag.TagId != "" {
// 统计note数
count := noteService.CountNoteByTag(userId, tag)
noteTag.Count = count
noteTag.UpdatedTime = time.Now()
// noteTag.Usn = userService.IncrUsn(userId), 更新count而已
db.UpdateByIdAndUserId(db.NoteTags, noteTag.TagId.Hex(), userId, noteTag)
return noteTag
}
// 不存在, 则创建之
noteTag.TagId = bson.NewObjectId()
noteTag.Count = 1
noteTag.Tag = tag
noteTag.UserId = bson.ObjectIdHex(userId)
noteTag.CreatedTime = time.Now()
noteTag.UpdatedTime = noteTag.CreatedTime
noteTag.Usn = userService.IncrUsn(userId)
noteTag.IsDeleted = false
db.Insert(db.NoteTags, noteTag)
return noteTag
}
func (this *UpgradeService) moveTag() {
usnI := 1
tags := []info.Tag{}
db.ListByQ(db.Tags, bson.M{}, &tags)
for _, eachTag := range tags {
tagTitles := eachTag.Tags
now := time.Now()
if tagTitles != nil && len(tagTitles) > 0 {
for _, tagTitle := range tagTitles {
noteTag := info.NoteTag{}
noteTag.TagId = bson.NewObjectId()
noteTag.Count = 1
noteTag.Tag = tagTitle
noteTag.UserId = eachTag.UserId
noteTag.CreatedTime = now
noteTag.UpdatedTime = now
noteTag.Usn = usnI
noteTag.IsDeleted = false
db.Insert(db.NoteTags, noteTag)
usnI++
}
}
}
}