Show UI's SQL queries in debug mode (#192)

api/methods/queries.go

@@ -337,6 +337,12 @@ func executeSqlQuery(filter models.Filter, report string, section string, view s
 		return "", errors.Wrap(errTpl, "invalid query template compiling")
 	}
 
+	// print executed sql query
+	// ...it can be useful for debug
+	if gin.Mode() == gin.DebugMode {
+		utils.LogInfo(queryFile + " | " + utils.InlineQuery(queryString.String()))
+	}
+
 	// execute query
 	db := source.CDRInstance()
 	results, errQuery := db.Query(queryString.String())
@@ -526,7 +532,7 @@ func buildCdrQuery(queryFile string, filter models.Filter) (string, error) {
 	}
 
 	// append limit to query
-
+	
 	queryBuilder.WriteString(" LIMIT " + queryLimit)
 
 	return queryBuilder.String(), nil

api/utils/utils.go

@@ -119,6 +119,22 @@ func LogError(err error) {
 	os.Stderr.WriteString(err.Error() + "\n")
 }
 
+func LogInfo(message string) {
+	currentTime := time.Now().Format("2006/01/02 - 15:04:05")
+	_, _ = os.Stderr.WriteString("[INFO] " + currentTime + " | " + message + "\n")
+}
+
+func InlineQuery(query string) string {
+	// Remove SQL comments (lines starting with --)
+	commentPattern := regexp.MustCompile(`--.*$`)
+	query = commentPattern.ReplaceAllString(query, "")
+
+	// Remove line breaks and extra spaces
+	query = strings.ReplaceAll(query, "\n", " ")
+	query = strings.Join(strings.Fields(query), " ")
+	return query
+}
+
 func Contains(a string, values []string) bool {
 	for _, b := range values {
 		if b == a {