better query

contrib/backends/srndv2/src/srnd/database.go

@@ -47,13 +47,12 @@ func (self PostEntry) Count() int64 {
 	return self[1]
 }
 
+type PostEntryList []PostEntry
+
+
 // stats about newsgroup postings
 type NewsgroupStats struct {
-	Posted []PostEntry
-	Delted []PostEntry
-	Hits   []PostEntry
-	Start  time.Time
-	End    time.Time
+	PPD    int64
 	Name   string
 }
 
@@ -70,6 +69,8 @@ type NewsgroupListEntry [3]string
 
 type NewsgroupList []NewsgroupListEntry
 
+
+
 type Database interface {
 	Close()
 	CreateTables()
@@ -124,6 +125,9 @@ type Database interface {
 	// if N <= 0 then count all we have now
 	CountPostsInGroup(group string, time_frame int64) int64
 
+	// get the stats for the overview page
+	GetNewsgroupStats() ([]NewsgroupStats, error)
+
 	// get all replies to a thread
 	// if last > 0 then get that many of the last replies
 	// start at reply number start

contrib/backends/srndv2/src/srnd/model.go

@@ -224,6 +224,8 @@ type boardPageRow struct {
 	Hour  int64
 	Day   int64
 	All   int64
+	Hi    int64
+	Lo    int64
 }
 
 type boardPageRows []boardPageRow
@@ -242,6 +244,7 @@ func (self boardPageRows) Swap(i, j int) {
 	self[i], self[j] = self[j], self[i]
 }
 
+
 type postsGraphRow struct {
 	day time.Time
 	Num int64

contrib/backends/srndv2/src/srnd/postgres.go

@@ -151,9 +151,11 @@ const GetCitesByPostHashLike = "GetCitesByPostHashLike"
 const GetYearlyPostHistory = "GetYearlyPostHistory"
 const GetNewsgroupList = "GetNewsgroupList"
 const CountUkko = "CountUkko"
+const GetNewsgroupStats = "GetNewsgroupStats"
 
 func (self *PostgresDatabase) prepareStatements() {
 	self.stmt = map[string]string{
+		GetNewsgroupStats: "SELECT COUNT(message_id), newsgroup FROM articleposts WHERE time_posted > (EXTRACT(epoch FROM NOW()) - (24*3600)) GROUP BY newsgroup",
 		NewsgroupBanned:                 "SELECT 1 FROM BannedGroups WHERE newsgroup = $1",
 		ArticleBanned:                   "SELECT 1 FROM BannedArticles WHERE message_id = $1",
 		GetAllNewsgroups:                "SELECT name FROM Newsgroups WHERE name NOT IN ( SELECT newsgroup FROM BannedGroups )",
@@ -2039,6 +2041,21 @@ func (self *PostgresDatabase) GetUkkoPageCount(perpage int) (count int64, err er
 	return
 }
 
+func (self *PostgresDatabase)	GetNewsgroupStats() (stats []NewsgroupStats, err error) {
+	var rows *sql.Rows
+	rows, err = self.conn.Query(self.stmt[GetNewsgroupStats])
+	if err == nil {
+		for rows.Next() {
+			var s NewsgroupStats
+			rows.Scan(&s.PPD, &s.Name)
+			stats = append(stats, s)
+		}
+		rows.Close()
+	}
+	return
+}
+
+
 func (self *PostgresDatabase) FindHeaders(group, headername string, lo, hi int64) (hdr ArticleHeaders, err error) {
 	hdr = make(ArticleHeaders)
 	q := "SELECT header_value FROM nntpheaders WHERE header_name = $1 AND header_article_message_id IN ( SELECT message_id FROM articleposts WHERE newsgroup = $2 )"

contrib/backends/srndv2/src/srnd/templates_impl.go

@@ -475,36 +475,29 @@ func (self *templateEngine) genGraphs(prefix string, wr io.Writer, db Database,
 
 func (self *templateEngine) genBoardList(prefix, name string, wr io.Writer, db Database, i18n *I18N) {
 	// the graph for the front page
-	var frontpage_graph boardPageRows
+	var graph boardPageRows
 
-	// for each group
-	groups := db.GetAllNewsgroups()
-	for _, group := range groups {
-		// exclude banned
-		banned, _ := db.NewsgroupBanned(group)
-		if banned {
-			continue
-		}
-		// posts this hour
-		hour := db.CountPostsInGroup(group, 3600)
-		// posts today
-		day := db.CountPostsInGroup(group, 86400)
-		// posts total
-		all := db.CountPostsInGroup(group, 0)
-		frontpage_graph = append(frontpage_graph, boardPageRow{
-			All:   all,
-			Day:   day,
-			Hour:  hour,
-			Board: group,
+	stats, err := db.GetNewsgroupStats()
+	if err != nil {
+		log.Println("error getting board list", err)
+		io.WriteString(wr, err.Error())
+		return
+	}
+
+	for idx := range stats {
+		graph = append(graph, boardPageRow{
+			Board: stats[idx].Name,
+			Day: stats[idx].PPD,
 		})
 	}
+	
 	param := map[string]interface{}{
 		"prefix":   prefix,
 		"frontend": name,
 	}
-	sort.Sort(frontpage_graph)
-	param["graph"] = frontpage_graph
-	_, err := io.WriteString(wr, self.renderTemplate("boardlist", param, i18n))
+	sort.Sort(graph)
+	param["graph"] = graph
+	_, err = io.WriteString(wr, self.renderTemplate("boardlist", param, i18n))
 	if err != nil {
 		log.Println("error writing board list page", err)
 	}