If no FormElement id setted, it'll be generated at the first rendering.

diff --git a/src/formelement.c b/src/formelement.c
index 2399ff2bff4033f3ec752672613b0497d09e9d89..affb51f4835ecc5e2ce603790897a99fe96f89ba 100644 (file)
--- a/src/formelement.c
+++ b/src/formelement.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2015-2017 Andrea Zagli <azagli@libero.it>
+ * Copyright (C) 2015-2019 Andrea Zagli <azagli@libero.it>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -185,6 +185,12 @@ gchar
 
        priv = ZAK_FORM_CGI_FORM_ELEMENT_GET_PRIVATE (element);
 
+       if (priv->id == NULL
+           || g_strcmp0 (g_strstrip (priv->id), "") == 0)
+               {
+                       priv->id = g_strdup_printf ("id_%d", g_random_int ());
+               }
+
        str = g_string_new ("<div class=\"form-group");
 
        if (!zak_form_element_get_visible (ZAK_FORM_ELEMENT (element)))