/
topic_store.go
327 lines (290 loc) · 8.81 KB
/
topic_store.go
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/*
*
* Gosora Topic Store
* Copyright Azareal 2017 - 2020
*
*/
package common
import (
"database/sql"
"errors"
"strconv"
"strings"
qgen "github.com/Azareal/Gosora/query_gen"
)
// TODO: Add the watchdog goroutine
// TODO: Add some sort of update method
// ? - Should we add stick, lock, unstick, and unlock methods? These might be better on the Topics not the TopicStore
var Topics TopicStore
var ErrNoTitle = errors.New("This message is missing a title")
var ErrLongTitle = errors.New("The title is too long")
var ErrNoBody = errors.New("This message is missing a body")
type TopicStore interface {
DirtyGet(id int) *Topic
Get(id int) (*Topic, error)
BypassGet(id int) (*Topic, error)
BulkGetMap(ids []int) (list map[int]*Topic, err error)
Exists(id int) bool
Create(fid int, name, content string, uid int, ip string) (tid int, err error)
AddLastTopic(t *Topic, fid int) error // unimplemented
Reload(id int) error // Too much SQL logic to move into TopicCache
// TODO: Implement these two methods
//Replies(tid int) ([]*Reply, error)
//RepliesRange(tid, lower, higher int) ([]*Reply, error)
Count() int
CountUser(uid int) int
CountMegaUser(uid int) int
CountBigUser(uid int) int
ClearIPs() error
LockMany(tids []int) error
SetCache(cache TopicCache)
GetCache() TopicCache
}
type DefaultTopicStore struct {
cache TopicCache
get *sql.Stmt
exists *sql.Stmt
count *sql.Stmt
countUser *sql.Stmt
countWordUser *sql.Stmt
create *sql.Stmt
clearIPs *sql.Stmt
lockTen *sql.Stmt
}
// NewDefaultTopicStore gives you a new instance of DefaultTopicStore
func NewDefaultTopicStore(cache TopicCache) (*DefaultTopicStore, error) {
acc := qgen.NewAcc()
if cache == nil {
cache = NewNullTopicCache()
}
t := "topics"
return &DefaultTopicStore{
cache: cache,
get: acc.Select(t).Columns("title,content,createdBy,createdAt,lastReplyBy,lastReplyAt,lastReplyID,is_closed,sticky,parentID,ip,views,postCount,likeCount,attachCount,poll,data").Where("tid=?").Stmt(),
exists: acc.Exists(t, "tid").Stmt(),
count: acc.Count(t).Stmt(),
countUser: acc.Count(t).Where("createdBy=?").Stmt(),
countWordUser: acc.Count(t).Where("createdBy=? AND words>=?").Stmt(),
create: acc.Insert(t).Columns("parentID,title,content,parsed_content,createdAt,lastReplyAt,lastReplyBy,ip,words,createdBy").Fields("?,?,?,?,UTC_TIMESTAMP(),UTC_TIMESTAMP(),?,?,?,?").Prepare(),
clearIPs: acc.Update(t).Set("ip=''").Where("ip!=''").Stmt(),
lockTen: acc.Update(t).Set("is_closed=1").Where("tid IN(" + inqbuild2(10) + ")").Stmt(),
}, acc.FirstError()
}
func (s *DefaultTopicStore) DirtyGet(id int) *Topic {
t, e := s.cache.Get(id)
if e == nil {
return t
}
t, e = s.BypassGet(id)
if e == nil {
_ = s.cache.Set(t)
return t
}
return BlankTopic()
}
// TODO: Log weird cache errors?
func (s *DefaultTopicStore) Get(id int) (t *Topic, e error) {
t, e = s.cache.Get(id)
if e == nil {
return t, nil
}
t, e = s.BypassGet(id)
if e == nil {
_ = s.cache.Set(t)
}
return t, e
}
// BypassGet will always bypass the cache and pull the topic directly from the database
func (s *DefaultTopicStore) BypassGet(id int) (*Topic, error) {
t := &Topic{ID: id}
e := s.get.QueryRow(id).Scan(&t.Title, &t.Content, &t.CreatedBy, &t.CreatedAt, &t.LastReplyBy, &t.LastReplyAt, &t.LastReplyID, &t.IsClosed, &t.Sticky, &t.ParentID, &t.IP, &t.ViewCount, &t.PostCount, &t.LikeCount, &t.AttachCount, &t.Poll, &t.Data)
if e == nil {
t.Link = BuildTopicURL(NameToSlug(t.Title), id)
}
return t, e
}
/*func (s *DefaultTopicStore) GetByUser(uid int) (list map[int]*Topic, err error) {
t := &Topic{ID: id}
err := s.get.QueryRow(id).Scan(&t.Title, &t.Content, &t.CreatedBy, &t.CreatedAt, &t.LastReplyBy, &t.LastReplyAt, &t.LastReplyID, &t.IsClosed, &t.Sticky, &t.ParentID, &t.IP, &t.ViewCount, &t.PostCount, &t.LikeCount, &t.AttachCount, &t.Poll, &t.Data)
if err == nil {
t.Link = BuildTopicURL(NameToSlug(t.Title), id)
}
return t, err
}*/
// TODO: Avoid duplicating much of this logic from user_store.go
func (s *DefaultTopicStore) BulkGetMap(ids []int) (list map[int]*Topic, e error) {
idCount := len(ids)
list = make(map[int]*Topic)
if idCount == 0 {
return list, nil
}
var stillHere []int
sliceList := s.cache.BulkGet(ids)
if len(sliceList) > 0 {
for i, sliceItem := range sliceList {
if sliceItem != nil {
list[sliceItem.ID] = sliceItem
} else {
stillHere = append(stillHere, ids[i])
}
}
ids = stillHere
}
// If every user is in the cache, then return immediately
if len(ids) == 0 {
return list, nil
} else if len(ids) == 1 {
t, e := s.Get(ids[0])
if e != nil {
return list, e
}
list[t.ID] = t
return list, nil
}
idList, q := inqbuild(ids)
rows, e := qgen.NewAcc().Select("topics").Columns("tid,title,content,createdBy,createdAt,lastReplyBy,lastReplyAt,lastReplyID,is_closed,sticky,parentID,ip,views,postCount,likeCount,attachCount,poll,data").Where("tid IN(" + q + ")").Query(idList...)
if e != nil {
return list, e
}
defer rows.Close()
for rows.Next() {
t := &Topic{}
e := rows.Scan(&t.ID, &t.Title, &t.Content, &t.CreatedBy, &t.CreatedAt, &t.LastReplyBy, &t.LastReplyAt, &t.LastReplyID, &t.IsClosed, &t.Sticky, &t.ParentID, &t.IP, &t.ViewCount, &t.PostCount, &t.LikeCount, &t.AttachCount, &t.Poll, &t.Data)
if e != nil {
return list, e
}
t.Link = BuildTopicURL(NameToSlug(t.Title), t.ID)
_ = s.cache.Set(t)
list[t.ID] = t
}
if e = rows.Err(); e != nil {
return list, e
}
// Did we miss any topics?
if idCount > len(list) {
var sidList string
for i, id := range ids {
if _, ok := list[id]; !ok {
if i == 0 {
sidList += strconv.Itoa(id)
} else {
sidList += ","+strconv.Itoa(id)
}
}
}
if sidList != "" {
e = errors.New("Unable to find topics with the following IDs: " + sidList)
}
}
return list, e
}
func (s *DefaultTopicStore) Reload(id int) error {
t, e := s.BypassGet(id)
if e == nil {
_ = s.cache.Set(t)
} else {
_ = s.cache.Remove(id)
}
TopicListThaw.Thaw()
return e
}
func (s *DefaultTopicStore) Exists(id int) bool {
return s.exists.QueryRow(id).Scan(&id) == nil
}
func (s *DefaultTopicStore) ClearIPs() error {
_, e := s.clearIPs.Exec()
return e
}
func (s *DefaultTopicStore) LockMany(tids []int) (e error) {
tc, i := Topics.GetCache(), 0
singles := func() error {
for ; i < len(tids); i++ {
_, e := topicStmts.lock.Exec(tids[i])
if e != nil {
return e
}
}
return nil
}
if len(tids) < 10 {
if e = singles(); e != nil {
return e
}
if tc != nil {
_ = tc.RemoveMany(tids)
}
TopicListThaw.Thaw()
return nil
}
for ; (i + 10) < len(tids); i += 10 {
_, e := s.lockTen.Exec(tids[i], tids[i+1], tids[i+2], tids[i+3], tids[i+4], tids[i+5], tids[i+6], tids[i+7], tids[i+8], tids[i+9])
if e != nil {
return e
}
}
if e = singles(); e != nil {
return e
}
if tc != nil {
_ = tc.RemoveMany(tids)
}
TopicListThaw.Thaw()
return nil
}
func (s *DefaultTopicStore) Create(fid int, name, content string, uid int, ip string) (tid int, err error) {
if name == "" {
return 0, ErrNoTitle
}
// ? 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?
if len(name) > Config.MaxTopicTitleLength {
return 0, ErrLongTitle
}
parsedContent := strings.TrimSpace(ParseMessage(content, fid, "forums", nil, nil))
if parsedContent == "" {
return 0, ErrNoBody
}
// TODO: Move this statement into the topic store
if Config.DisablePostIP {
ip = ""
}
res, err := s.create.Exec(fid, name, content, parsedContent, uid, ip, WordCount(content), uid)
if err != nil {
return 0, err
}
lastID, err := res.LastInsertId()
if err != nil {
return 0, err
}
tid = int(lastID)
//TopicListThaw.Thaw() // redundant
return tid, Forums.AddTopic(tid, uid, fid)
}
// ? - What is this? Do we need it? Should it be in the main store interface?
func (s *DefaultTopicStore) AddLastTopic(t *Topic, fid int) error {
// Coming Soon...
return nil
}
// Count returns the total number of topics on these forums
func (s *DefaultTopicStore) Count() (count int) {
return Countf(s.count)
}
func (s *DefaultTopicStore) CountUser(uid int) (count int) {
return Countf(s.countUser, uid)
}
func (s *DefaultTopicStore) CountMegaUser(uid int) (count int) {
return Countf(s.countWordUser, uid, SettingBox.Load().(SettingMap)["megapost_min_words"].(int))
}
func (s *DefaultTopicStore) CountBigUser(uid int) (count int) {
return Countf(s.countWordUser, uid, SettingBox.Load().(SettingMap)["bigpost_min_words"].(int))
}
func (s *DefaultTopicStore) SetCache(cache TopicCache) {
s.cache = cache
}
// TODO: We're temporarily doing this so that you can do tcache != nil in getTopicUser. Refactor it.
func (s *DefaultTopicStore) GetCache() TopicCache {
_, ok := s.cache.(*NullTopicCache)
if ok {
return nil
}
return s.cache
}