gosora/routes/forum.go

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package routes
import (
"database/sql"
"net/http"
"strconv"
"strings"
"../common"
"../common/counters"
"../query_gen/lib"
)
type ForumStmts struct {
getTopics *sql.Stmt
}
var forumStmts ForumStmts
// TODO: Move these DbInits into *Forum as Topics()
func init() {
common.DbInits.Add(func(acc *qgen.Accumulator) error {
forumStmts = ForumStmts{
getTopics: acc.Select("topics").Columns("tid, title, content, createdBy, is_closed, sticky, createdAt, lastReplyAt, lastReplyBy, parentID, postCount, likeCount").Where("parentID = ?").Orderby("sticky DESC, lastReplyAt DESC, createdBy DESC").Limit("?,?").Prepare(),
}
return acc.FirstError()
})
}
func ViewForum(w http.ResponseWriter, r *http.Request, user common.User, sfid string) common.RouteError {
page, _ := strconv.Atoi(r.FormValue("page"))
// SEO URLs...
halves := strings.Split(sfid, ".")
if len(halves) < 2 {
halves = append(halves, halves[0])
}
fid, err := strconv.Atoi(halves[1])
if err != nil {
return common.PreError("The provided ForumID is not a valid number.", w, r)
}
headerVars, ferr := common.ForumUserCheck(w, r, &user, fid)
if ferr != nil {
return ferr
}
if !user.Perms.ViewTopic {
return common.NoPermissions(w, r, user)
}
headerVars.Zone = "view_forum"
// TODO: Fix this double-check
forum, err := common.Forums.Get(fid)
if err == sql.ErrNoRows {
return common.NotFound(w, r, headerVars)
} else if err != nil {
return common.InternalError(err, w, r)
}
// TODO: Does forum.TopicCount take the deleted items into consideration for guests? We don't have soft-delete yet, only hard-delete
offset, page, lastPage := common.PageOffset(forum.TopicCount, page, common.Config.ItemsPerPage)
// TODO: Move this to *Forum
rows, err := forumStmts.getTopics.Query(fid, offset, common.Config.ItemsPerPage)
if err != nil {
return common.InternalError(err, w, r)
}
defer rows.Close()
// TODO: Use something other than TopicsRow as we don't need to store the forum name and link on each and every topic item?
var topicList []*common.TopicsRow
var reqUserList = make(map[int]bool)
for rows.Next() {
var topicItem = common.TopicsRow{ID: 0}
err := rows.Scan(&topicItem.ID, &topicItem.Title, &topicItem.Content, &topicItem.CreatedBy, &topicItem.IsClosed, &topicItem.Sticky, &topicItem.CreatedAt, &topicItem.LastReplyAt, &topicItem.LastReplyBy, &topicItem.ParentID, &topicItem.PostCount, &topicItem.LikeCount)
if err != nil {
return common.InternalError(err, w, r)
}
topicItem.Link = common.BuildTopicURL(common.NameToSlug(topicItem.Title), topicItem.ID)
topicItem.RelativeLastReplyAt = common.RelativeTime(topicItem.LastReplyAt)
common.RunVhook("forum_trow_assign", &topicItem, &forum)
topicList = append(topicList, &topicItem)
reqUserList[topicItem.CreatedBy] = true
reqUserList[topicItem.LastReplyBy] = true
}
err = rows.Err()
if err != nil {
return common.InternalError(err, w, r)
}
// Convert the user ID map to a slice, then bulk load the users
var idSlice = make([]int, len(reqUserList))
var i int
for userID := range reqUserList {
idSlice[i] = userID
i++
}
// TODO: What if a user is deleted via the Control Panel?
userList, err := common.Users.BulkGetMap(idSlice)
if err != nil {
return common.InternalError(err, w, r)
}
// Second pass to the add the user data
// TODO: Use a pointer to TopicsRow instead of TopicsRow itself?
for _, topicItem := range topicList {
topicItem.Creator = userList[topicItem.CreatedBy]
topicItem.LastUser = userList[topicItem.LastReplyBy]
}
pageList := common.Paginate(forum.TopicCount, common.Config.ItemsPerPage, 5)
pi := common.ForumPage{forum.Name, user, headerVars, topicList, forum, pageList, page, lastPage}
if common.RunPreRenderHook("pre_render_forum", w, r, &user, &pi) {
return nil
}
err = common.RunThemeTemplate(headerVars.Theme.Name, "forum", pi, w)
if err != nil {
return common.InternalError(err, w, r)
}
counters.ForumViewCounter.Bump(forum.ID)
return nil
}