return 0 when archive tables have no rows for given timestamps

count/browsers.go

@@ -10,7 +10,7 @@ func TotalUniqueBrowsers(before int64, after int64) int {
 
 	stmt, err := db.Conn.Prepare(`
     SELECT
-      SUM(t.count_unique)
+      IFNULL( SUM(t.count_unique), 0 )
     FROM total_browser_names t
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)

count/languages.go

@@ -10,7 +10,7 @@ func TotalUniqueLanguages(before int64, after int64) int {
 
 	stmt, err := db.Conn.Prepare(`
     SELECT
-      SUM(t.count_unique)
+      IFNULL( SUM(t.count_unique), 0 )
     FROM total_browser_languages t
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)

count/pageviews.go

@@ -3,16 +3,18 @@ package count
 import "github.com/dannyvankooten/ana/db"
 
 // Pageviews returns the total number of pageviews between the given timestamps
-func Pageviews(before int64, after int64) float64 {
+func Pageviews(before int64, after int64) int {
+	var total int
+
 	// get total
 	stmt, err := db.Conn.Prepare(`
     SELECT
-    SUM(t.count)
+    	IFNULL( SUM(t.count), 0 )
     FROM total_pageviews t
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)
 	defer stmt.Close()
-	var total float64
+
 	stmt.QueryRow(before, after).Scan(&total)
 	return total
 }

count/referrers.go

@@ -10,7 +10,7 @@ func TotalReferrers(before int64, after int64) int {
 
 	stmt, err := db.Conn.Prepare(`
     SELECT
-      SUM(t.count)
+      IFNULL( SUM(t.count), 0 )
     FROM total_referrers t
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)

count/screens.go

@@ -10,7 +10,7 @@ func TotalUniqueScreens(before int64, after int64) int {
 
 	stmt, err := db.Conn.Prepare(`
     SELECT
-      SUM(t.count_unique)
+    	IFNULL( SUM(t.count_unique), 0 )
     FROM total_screens t
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)

count/visitors.go

@@ -15,7 +15,7 @@ func RealtimeVisitors() int {
 }
 
 // Visitors returns the number of total visitors between the given timestamps
-func Visitors(before int64, after int64) float64 {
+func Visitors(before int64, after int64) int {
 	// get total
 	stmt, err := db.Conn.Prepare(`
     SELECT
@@ -24,7 +24,7 @@ func Visitors(before int64, after int64) float64 {
     WHERE UNIX_TIMESTAMP(t.date) <= ? AND UNIX_TIMESTAMP(t.date) >= ?`)
 	checkError(err)
 	defer stmt.Close()
-	var total float64
+	var total int
 	stmt.QueryRow(before, after).Scan(&total)
 	return total
 }