not just export a variable

session/ledis/ledis_session.go

@@ -100,7 +100,7 @@ func (lp *Provider) SessionInit(maxlifetime int64, savePath string) error {
 	nowLedis, err := ledis.Open(cfg)
 	c, err = nowLedis.Select(lp.db)
 	if err != nil {
-		session.SLogger.Println(err)
+		println(err)
 		return nil
 	}
 	return nil

session/mysql/sess_mysql.go

@@ -1,4 +1,3 @@
-
 // Copyright 2014 beego Author. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -112,14 +111,10 @@ func (st *SessionStore) SessionRelease(w http.ResponseWriter) {
 	defer st.c.Close()
 	b, err := session.EncodeGob(st.values)
 	if err != nil {
-		session.SLogger.Println(err)
 		return
 	}
-	_, err = st.c.Exec("UPDATE "+TableName+" set `session_data`=?, `session_expiry`=? where session_key=?",
+	st.c.Exec("UPDATE "+TableName+" set `session_data`=?, `session_expiry`=? where session_key=?",
 		b, time.Now().Unix(), st.sid)
-	if err != nil {
-		session.SLogger.Println(err)
-	}
 }
 
 // Provider mysql session provider
@@ -132,7 +127,6 @@ type Provider struct {
 func (mp *Provider) connectInit() *sql.DB {
 	db, e := sql.Open("mysql", mp.savePath)
 	if e != nil {
-		session.SLogger.Println(e)
 		return nil
 	}
 	return db
@@ -228,7 +222,6 @@ func (mp *Provider) SessionAll() int {
 	var total int
 	err := c.QueryRow("SELECT count(*) as num from " + TableName).Scan(&total)
 	if err != nil {
-		session.SLogger.Println(err)
 		return 0
 	}
 	return total

session/sess_file.go

@@ -88,8 +88,10 @@ func (fs *FileSessionStore) SessionRelease(w http.ResponseWriter) {
 	var f *os.File
 	if err == nil {
 		f, err = os.OpenFile(path.Join(filepder.savePath, string(fs.sid[0]), string(fs.sid[1]), fs.sid), os.O_RDWR, 0777)
+		SLogger.Println(err)
 	} else if os.IsNotExist(err) {
 		f, err = os.Create(path.Join(filepder.savePath, string(fs.sid[0]), string(fs.sid[1]), fs.sid))
+		SLogger.Println(err)
 	} else {
 		return
 	}

session/session.go

@@ -64,7 +64,8 @@ type Provider interface {
 
 var provides = make(map[string]Provider)
 
-var SLogger = newSessionLog(os.Stderr)
+// SLogger a helpful variable to log information about session
+var SLogger = NewSessionLog(os.Stderr)
 
 // Register makes a session provide available by the provided name.
 // If Register is called twice with the same name or if driver is nil,
@@ -303,13 +304,13 @@ func (manager *Manager) isSecure(req *http.Request) bool {
 }
 
 // Log implement the log.Logger
-type sessionLog struct {
+type Log struct {
 	*log.Logger
 }
 
-// NewLog set io.Writer to create a Logger for session.
-func newSessionLog(out io.Writer) *sessionLog {
-	sl := new(sessionLog)
+// NewSessionLog set io.Writer to create a Logger for session.
+func NewSessionLog(out io.Writer) *Log {
+	sl := new(Log)
 	sl.Logger = log.New(out, "[SESSION]", 1e9)
 	return sl
 }