398 lines
12 KiB
Go
398 lines
12 KiB
Go
/*
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*
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* Gosora Topic File
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* Copyright Azareal 2017 - 2018
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*
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*/
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package common
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import (
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"database/sql"
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"html"
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"html/template"
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"strconv"
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"time"
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"../query_gen/lib"
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)
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// This is also in reply.go
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//var ErrAlreadyLiked = errors.New("This item was already liked by this user")
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// ? - Add a TopicMeta struct for *Forums?
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type Topic struct {
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ID int
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Link string
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Title string
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Content string
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CreatedBy int
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IsClosed bool
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Sticky bool
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CreatedAt time.Time
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RelativeCreatedAt string
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LastReplyAt time.Time
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RelativeLastReplyAt string
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//LastReplyBy int
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ParentID int
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Status string // Deprecated. Marked for removal.
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IPAddress string
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PostCount int
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LikeCount int
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ClassName string // CSS Class Name
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Poll int
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Data string // Used for report metadata
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}
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type TopicUser struct {
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ID int
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Link string
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Title string
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Content string
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CreatedBy int
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IsClosed bool
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Sticky bool
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CreatedAt time.Time
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RelativeCreatedAt string
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LastReplyAt time.Time
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RelativeLastReplyAt string
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//LastReplyBy int
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ParentID int
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Status string // Deprecated. Marked for removal.
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IPAddress string
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PostCount int
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LikeCount int
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ClassName string
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Poll int
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Data string // Used for report metadata
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UserLink string
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CreatedByName string
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Group int
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Avatar string
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ContentLines int
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ContentHTML string
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Tag string
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URL string
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URLPrefix string
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URLName string
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Level int
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Liked bool
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}
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type TopicsRow struct {
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ID int
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Link string
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Title string
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Content string
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CreatedBy int
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IsClosed bool
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Sticky bool
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CreatedAt string
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LastReplyAt time.Time
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RelativeLastReplyAt string
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LastReplyBy int
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ParentID int
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Status string // Deprecated. Marked for removal. -Is there anything we could use it for?
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IPAddress string
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PostCount int
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LikeCount int
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ClassName string
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Data string // Used for report metadata
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Creator *User
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CSS template.CSS
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ContentLines int
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LastUser *User
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ForumName string //TopicsRow
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ForumLink string
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}
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type TopicStmts struct {
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addRepliesToTopic *sql.Stmt
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lock *sql.Stmt
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unlock *sql.Stmt
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moveTo *sql.Stmt
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stick *sql.Stmt
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unstick *sql.Stmt
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hasLikedTopic *sql.Stmt
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createLike *sql.Stmt
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addLikesToTopic *sql.Stmt
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delete *sql.Stmt
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edit *sql.Stmt
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setPoll *sql.Stmt
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createActionReply *sql.Stmt
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getTopicUser *sql.Stmt // TODO: Can we get rid of this?
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getByReplyID *sql.Stmt
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}
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var topicStmts TopicStmts
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func init() {
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DbInits.Add(func(acc *qgen.Accumulator) error {
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topicStmts = TopicStmts{
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addRepliesToTopic: acc.Update("topics").Set("postCount = postCount + ?, lastReplyBy = ?, lastReplyAt = UTC_TIMESTAMP()").Where("tid = ?").Prepare(),
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lock: acc.Update("topics").Set("is_closed = 1").Where("tid = ?").Prepare(),
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unlock: acc.Update("topics").Set("is_closed = 0").Where("tid = ?").Prepare(),
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moveTo: acc.Update("topics").Set("parentID = ?").Where("tid = ?").Prepare(),
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stick: acc.Update("topics").Set("sticky = 1").Where("tid = ?").Prepare(),
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unstick: acc.Update("topics").Set("sticky = 0").Where("tid = ?").Prepare(),
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hasLikedTopic: acc.Select("likes").Columns("targetItem").Where("sentBy = ? and targetItem = ? and targetType = 'topics'").Prepare(),
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createLike: acc.Insert("likes").Columns("weight, targetItem, targetType, sentBy, createdAt").Fields("?,?,?,?,UTC_TIMESTAMP()").Prepare(),
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addLikesToTopic: acc.Update("topics").Set("likeCount = likeCount + ?").Where("tid = ?").Prepare(),
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delete: acc.Delete("topics").Where("tid = ?").Prepare(),
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edit: acc.Update("topics").Set("title = ?, content = ?, parsed_content = ?").Where("tid = ?").Prepare(), // TODO: Only run the content update bits on non-polls, does this matter?
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setPoll: acc.Update("topics").Set("content = '', parsed_content = '', poll = ?").Where("tid = ? AND poll = 0").Prepare(),
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createActionReply: acc.Insert("replies").Columns("tid, actionType, ipaddress, createdBy, createdAt, lastUpdated, content, parsed_content").Fields("?,?,?,?,UTC_TIMESTAMP(),UTC_TIMESTAMP(),'',''").Prepare(),
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getTopicUser: acc.SimpleLeftJoin("topics", "users", "topics.title, topics.content, topics.createdBy, topics.createdAt, topics.is_closed, topics.sticky, topics.parentID, topics.ipaddress, topics.postCount, topics.likeCount, topics.poll, users.name, users.avatar, users.group, users.url_prefix, users.url_name, users.level", "topics.createdBy = users.uid", "tid = ?", "", ""),
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getByReplyID: acc.SimpleLeftJoin("replies", "topics", "topics.tid, topics.title, topics.content, topics.createdBy, topics.createdAt, topics.is_closed, topics.sticky, topics.parentID, topics.ipaddress, topics.postCount, topics.likeCount, topics.poll, topics.data", "replies.tid = topics.tid", "rid = ?", "", ""),
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}
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return acc.FirstError()
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})
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}
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// Flush the topic out of the cache
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// ? - We do a CacheRemove() here instead of mutating the pointer to avoid creating a race condition
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func (topic *Topic) cacheRemove() {
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tcache := Topics.GetCache()
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if tcache != nil {
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tcache.Remove(topic.ID)
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}
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}
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// TODO: Write a test for this
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func (topic *Topic) AddReply(uid int) (err error) {
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_, err = topicStmts.addRepliesToTopic.Exec(1, uid, topic.ID)
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topic.cacheRemove()
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return err
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}
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func (topic *Topic) Lock() (err error) {
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_, err = topicStmts.lock.Exec(topic.ID)
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topic.cacheRemove()
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return err
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}
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func (topic *Topic) Unlock() (err error) {
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_, err = topicStmts.unlock.Exec(topic.ID)
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topic.cacheRemove()
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return err
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}
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func (topic *Topic) MoveTo(destForum int) (err error) {
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_, err = topicStmts.moveTo.Exec(destForum, topic.ID)
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topic.cacheRemove()
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return err
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}
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// TODO: We might want more consistent terminology rather than using stick in some places and pin in others. If you don't understand the difference, there is none, they are one and the same.
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func (topic *Topic) Stick() (err error) {
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_, err = topicStmts.stick.Exec(topic.ID)
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topic.cacheRemove()
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return err
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}
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func (topic *Topic) Unstick() (err error) {
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_, err = topicStmts.unstick.Exec(topic.ID)
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topic.cacheRemove()
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return err
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}
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// TODO: Test this
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// TODO: Use a transaction for this
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func (topic *Topic) Like(score int, uid int) (err error) {
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var disp int // Unused
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err = topicStmts.hasLikedTopic.QueryRow(uid, topic.ID).Scan(&disp)
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if err != nil && err != ErrNoRows {
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return err
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} else if err != ErrNoRows {
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return ErrAlreadyLiked
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}
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_, err = topicStmts.createLike.Exec(score, topic.ID, "topics", uid)
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if err != nil {
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return err
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}
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_, err = topicStmts.addLikesToTopic.Exec(1, topic.ID)
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if err != nil {
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return err
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}
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_, err = userStmts.incrementLiked.Exec(1, uid)
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topic.cacheRemove()
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return err
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}
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// TODO: Implement this
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func (topic *Topic) Unlike(uid int) error {
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return nil
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}
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// TODO: Use a transaction here
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func (topic *Topic) Delete() error {
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topicCreator, err := Users.Get(topic.CreatedBy)
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if err == nil {
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wcount := WordCount(topic.Content)
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err = topicCreator.DecreasePostStats(wcount, true)
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if err != nil {
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return err
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}
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} else if err != ErrNoRows {
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return err
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}
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err = Forums.RemoveTopic(topic.ParentID)
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if err != nil && err != ErrNoRows {
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return err
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}
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_, err = topicStmts.delete.Exec(topic.ID)
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topic.cacheRemove()
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return err
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}
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// TODO: Write tests for this
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func (topic *Topic) Update(name string, content string) error {
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name = SanitiseSingleLine(html.UnescapeString(name))
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if name == "" {
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return ErrNoTitle
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}
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// ? This number might be a little screwy with Unicode, but it's the only consistent thing we have, as Unicode characters can be any number of bytes in theory?
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if len(name) > Config.MaxTopicTitleLength {
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return ErrLongTitle
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}
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content = PreparseMessage(html.UnescapeString(content))
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parsedContent := ParseMessage(content, topic.ParentID, "forums")
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_, err := topicStmts.edit.Exec(name, content, parsedContent, topic.ID)
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topic.cacheRemove()
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return err
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}
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func (topic *Topic) SetPoll(pollID int) error {
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_, err := topicStmts.setPoll.Exec(pollID, topic.ID) // TODO: Sniff if this changed anything to see if we hit an existing poll
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topic.cacheRemove()
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return err
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}
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// TODO: Have this go through the ReplyStore?
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func (topic *Topic) CreateActionReply(action string, ipaddress string, user User) (err error) {
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_, err = topicStmts.createActionReply.Exec(topic.ID, action, ipaddress, user.ID)
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if err != nil {
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return err
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}
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_, err = topicStmts.addRepliesToTopic.Exec(1, user.ID, topic.ID)
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topic.cacheRemove()
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// ? - Update the last topic cache for the parent forum?
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return err
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}
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func (topic *Topic) GetID() int {
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return topic.ID
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}
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func (topic *Topic) GetTable() string {
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return "topics"
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}
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// Copy gives you a non-pointer concurrency safe copy of the topic
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func (topic *Topic) Copy() Topic {
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return *topic
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}
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func TopicByReplyID(rid int) (*Topic, error) {
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topic := Topic{ID: 0}
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err := topicStmts.getByReplyID.QueryRow(rid).Scan(&topic.ID, &topic.Title, &topic.Content, &topic.CreatedBy, &topic.CreatedAt, &topic.IsClosed, &topic.Sticky, &topic.ParentID, &topic.IPAddress, &topic.PostCount, &topic.LikeCount, &topic.Poll, &topic.Data)
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topic.Link = BuildTopicURL(NameToSlug(topic.Title), topic.ID)
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return &topic, err
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}
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// TODO: Refactor the caller to take a Topic and a User rather than a combined TopicUser
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func GetTopicUser(tid int) (TopicUser, error) {
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tcache := Topics.GetCache()
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ucache := Users.GetCache()
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if tcache != nil && ucache != nil {
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topic, err := tcache.Get(tid)
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if err == nil {
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user, err := Users.Get(topic.CreatedBy)
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if err != nil {
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return TopicUser{ID: tid}, err
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}
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// We might be better off just passing separate topic and user structs to the caller?
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return copyTopicToTopicUser(topic, user), nil
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} else if ucache.Length() < ucache.GetCapacity() {
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topic, err = Topics.Get(tid)
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if err != nil {
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return TopicUser{ID: tid}, err
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}
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user, err := Users.Get(topic.CreatedBy)
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if err != nil {
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return TopicUser{ID: tid}, err
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}
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return copyTopicToTopicUser(topic, user), nil
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}
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}
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tu := TopicUser{ID: tid}
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err := topicStmts.getTopicUser.QueryRow(tid).Scan(&tu.Title, &tu.Content, &tu.CreatedBy, &tu.CreatedAt, &tu.IsClosed, &tu.Sticky, &tu.ParentID, &tu.IPAddress, &tu.PostCount, &tu.LikeCount, &tu.Poll, &tu.CreatedByName, &tu.Avatar, &tu.Group, &tu.URLPrefix, &tu.URLName, &tu.Level)
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tu.Link = BuildTopicURL(NameToSlug(tu.Title), tu.ID)
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tu.UserLink = BuildProfileURL(NameToSlug(tu.CreatedByName), tu.CreatedBy)
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tu.Tag = Groups.DirtyGet(tu.Group).Tag
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if tcache != nil {
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theTopic := Topic{ID: tu.ID, Link: tu.Link, Title: tu.Title, Content: tu.Content, CreatedBy: tu.CreatedBy, IsClosed: tu.IsClosed, Sticky: tu.Sticky, CreatedAt: tu.CreatedAt, LastReplyAt: tu.LastReplyAt, ParentID: tu.ParentID, IPAddress: tu.IPAddress, PostCount: tu.PostCount, LikeCount: tu.LikeCount, Poll: tu.Poll}
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//log.Printf("theTopic: %+v\n", theTopic)
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_ = tcache.Add(&theTopic)
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}
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return tu, err
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}
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func copyTopicToTopicUser(topic *Topic, user *User) (tu TopicUser) {
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tu.UserLink = user.Link
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tu.CreatedByName = user.Name
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tu.Group = user.Group
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tu.Avatar = user.Avatar
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tu.URLPrefix = user.URLPrefix
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tu.URLName = user.URLName
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tu.Level = user.Level
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tu.ID = topic.ID
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tu.Link = topic.Link
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tu.Title = topic.Title
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tu.Content = topic.Content
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tu.CreatedBy = topic.CreatedBy
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tu.IsClosed = topic.IsClosed
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tu.Sticky = topic.Sticky
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tu.CreatedAt = topic.CreatedAt
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tu.LastReplyAt = topic.LastReplyAt
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tu.ParentID = topic.ParentID
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tu.IPAddress = topic.IPAddress
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tu.PostCount = topic.PostCount
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tu.LikeCount = topic.LikeCount
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tu.Poll = topic.Poll
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tu.Data = topic.Data
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return tu
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}
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// For use in tests and for generating blank topics for forums which don't have a last poster
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func BlankTopic() *Topic {
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return new(Topic)
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}
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func BuildTopicURL(slug string, tid int) string {
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if slug == "" || !Config.BuildSlugs {
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return "/topic/" + strconv.Itoa(tid)
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}
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return "/topic/" + slug + "." + strconv.Itoa(tid)
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}
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// I don't care if it isn't used,, it will likely be in the future. Nolint.
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// nolint
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func getTopicURLPrefix() string {
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return "/topic/"
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}
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