package session func (this *Session) IsSetString(name string) bool { if _, ok := this.v.String[name]; ok { return true } else { return false } } func (this *Session) GetString(name string, def string) string { if v, ok := this.v.String[name]; ok { return v } else { return def } } func (this *Session) SetString(name string, value string) { isset := this.IsSetString(name) this.v.String[name] = value if isset || value != "" { this.c = true } }