Beautify callback log output (go-gorm#2749)

Author: liov

logger.go

@@ -39,6 +39,15 @@ var LogFormatter = func(values ...interface{}) (messages []interface{}) {
 
 		messages = []interface{}{source, currentTime}
 
+		if len(values) == 2 {
+			//remove the line break
+			currentTime = currentTime[1:]
+			//remove the brackets
+			source = fmt.Sprintf("\033[35m%v\033[0m", values[1])
+
+			messages = []interface{}{currentTime, source}
+		}
+
 		if level == "sql" {
 			// duration
 			messages = append(messages, fmt.Sprintf(" \033[36;1m[%.2fms]\033[0m ", float64(values[2].(time.Duration).Nanoseconds()/1e4)/100.0))