Added TIMEZONE to database app config and validate

configuration.go

@@ -14,8 +14,8 @@ type Configuration struct {
 
 var smonConfig Configuration
 
-func SmonConfigInit() (err error) {
-	smonConfig.Settings = make(map[string]string, 8)
+func SmonConfigInit() (cfg Configuration, err error) {
+	cfg.Settings = make(map[string]string, 8)
 
 	var rows *sql.Rows
 	rows, err = service.Db.Conn.Query(`SELECT * FROM public.configuration`)
@@ -33,12 +33,22 @@ func SmonConfigInit() (err error) {
 			return
 		}
 
-		smonConfig.Settings[setting] = value
+		cfg.Settings[setting] = value
 	}
 
 	return
 }
 
+func (cfg *Configuration) Validate() (err error) {
+	mandatorySettings := []string{"THEME", "TIMEZONE"}
+	for _, settingsKey := range mandatorySettings {
+		if _, found := cfg.Settings[settingsKey]; !found {
+			return werr.New("Configuration missing setting '%s' in database", settingsKey) 
+		}
+	}
+	return
+}
+
 func (cfg *Configuration) SetTheme(theme string) (err error) {
 	cfg.Settings["THEME"] = theme
 	_, err = service.Db.Conn.Exec(`UPDATE public.configuration SET value=$1 WHERE setting='THEME'`, theme)

main.go

@@ -153,7 +153,13 @@ func main() { // {{{
 
 	go nodataLoop()
 
-	err = SmonConfigInit()
+	smonConfig, err = SmonConfigInit()
+	if err != nil {
+		logger.Error("configuration", "error", werr.Wrap(err))
+		os.Exit(1)
+	}
+
+	err = smonConfig.Validate()
 	if err != nil {
 		logger.Error("configuration", "error", werr.Wrap(err))
 		os.Exit(1)

sql/00020.sql

@@ -0,0 +1 @@
+INSERT INTO public.configuration(setting, value) VALUES('TIMEZONE', 'Europe/Stockholm');