// 点赞/取消赞
func (this *BlogService) LikeComment(commentId, userId string) (ok bool, isILike bool, num int) {
ok = false
isILike = false
num = 0
comment := info.BlogComment{}
db.Get(db.BlogComments, commentId, &comment)
var n int
if comment.LikeUserIds != nil && len(comment.LikeUserIds) > 0 && InArray(comment.LikeUserIds, userId) {
n = -1
// 从点赞名单删除
db.Update(db.BlogComments, bson.M{"_id": bson.ObjectIdHex(commentId)},
bson.M{"$pull": bson.M{"LikeUserIds": userId}})
isILike = false
} else {
n = 1
// 添加之
db.Update(db.BlogComments, bson.M{"_id": bson.ObjectIdHex(commentId)},
bson.M{"$push": bson.M{"LikeUserIds": userId}})
isILike = true
}
if comment.LikeUserIds == nil {
num = 0
} else {
num = len(comment.LikeUserIds) + n
}
ok = db.Update(db.BlogComments, bson.M{"_id": bson.ObjectIdHex(commentId)},
bson.M{"$set": bson.M{"LikeNum": num}})
return
}
// 点赞
// retun ok , isLike
func (this *BlogService) LikeBlog(noteId, userId string) (ok bool, isLike bool) {
ok = false
isLike = false
if noteId == "" || userId == "" {
return
}
// 判断是否点过赞, 如果点过那么取消点赞
note := noteService.GetNoteById(noteId)
if !note.IsBlog /*|| note.UserId.Hex() == userId */ {
return
}
noteIdO := bson.ObjectIdHex(noteId)
userIdO := bson.ObjectIdHex(userId)
var n int
if !db.Has(db.BlogLikes, bson.M{"NoteId": noteIdO, "UserId": userIdO}) {
n = 1
// 添加之
db.Insert(db.BlogLikes, info.BlogLike{LikeId: bson.NewObjectId(), NoteId: noteIdO, UserId: userIdO, CreatedTime: time.Now()})
isLike = true
} else {
// 已点过, 那么删除之
n = -1
db.Delete(db.BlogLikes, bson.M{"NoteId": noteIdO, "UserId": userIdO})
isLike = false
}
ok = db.Update(db.Notes, bson.M{"_id": noteIdO}, bson.M{"$inc": bson.M{"LikeNum": n}})
return
}
// 阅读次数统计+1
func (this *BlogService) IncReadNum(noteId string) bool {
note := noteService.GetNoteById(noteId)
if note.IsBlog {
return db.Update(db.Notes, bson.M{"_id": bson.ObjectIdHex(noteId)}, bson.M{"$inc": bson.M{"ReadNum": 1}})
}
return false
}
// 评论
// 在noteId博客下userId 给toUserId评论content
// commentId可为空(针对某条评论评论)
func (this *BlogService) Comment(noteId, toCommentId, userId, content string) (bool, info.BlogComment) {
var comment info.BlogComment
if content == "" {
return false, comment
}
note := noteService.GetNoteById(noteId)
if !note.IsBlog {
return false, comment
}
comment = info.BlogComment{CommentId: bson.NewObjectId(),
NoteId: bson.ObjectIdHex(noteId),
UserId: bson.ObjectIdHex(userId),
Content: content,
CreatedTime: time.Now(),
}
var comment2 = info.BlogComment{}
if toCommentId != "" {
comment2 = info.BlogComment{}
db.Get(db.BlogComments, toCommentId, &comment2)
if comment2.CommentId != "" {
comment.ToCommentId = comment2.CommentId
comment.ToUserId = comment2.UserId
}
} else {
// comment.ToUserId = note.UserId
}
ok := db.Insert(db.BlogComments, comment)
if ok {
// 评论+1
db.Update(db.Notes, bson.M{"_id": bson.ObjectIdHex(noteId)}, bson.M{"$inc": bson.M{"CommentNum": 1}})
}
if userId != note.UserId.Hex() || toCommentId != "" {
go func() {
this.sendEmail(note, comment2, userId, content)
}()
}
return ok, comment
}
// 作者(或管理员)可以删除所有评论
// 自己可以删除评论
func (this *BlogService) DeleteComment(noteId, commentId, userId string) bool {
note := noteService.GetNoteById(noteId)
if !note.IsBlog {
return false
}
comment := info.BlogComment{}
db.Get(db.BlogComments, commentId, &comment)
if comment.CommentId == "" {
return false
}
if userId == configService.GetAdminUserId() || note.UserId.Hex() == userId || comment.UserId.Hex() == userId {
if db.Delete(db.BlogComments, bson.M{"_id": bson.ObjectIdHex(commentId)}) {
// 评论-1
db.Update(db.Notes, bson.M{"_id": bson.ObjectIdHex(noteId)}, bson.M{"$inc": bson.M{"CommentNum": -1}})
return true
}
}
return false
}