Add getCasdoorColumns().

util/string.go

@@ -15,6 +15,7 @@
 package util
 
 import (
+	"bytes"
 	"crypto/md5"
 	"encoding/hex"
 	"errors"
@@ -52,6 +53,22 @@ func BoolToString(b bool) string {
 	}
 }
 
+func CamelToSnakeCase(camel string) string {
+	var buf bytes.Buffer
+	for _, c := range camel {
+		if 'A' <= c && c <= 'Z' {
+			// just convert [A-Z] to _[a-z]
+			if buf.Len() > 0 {
+				buf.WriteRune('_')
+			}
+			buf.WriteRune(c - 'A' + 'a')
+		} else {
+			buf.WriteRune(c)
+		}
+	}
+	return buf.String()
+}
+
 func GetOwnerAndNameFromId(id string) (string, string) {
 	tokens := strings.Split(id, "/")
 	if len(tokens) != 2 {