[OpenSIPS-Users] Help with transformation.

[Jesus Rodriguez]

Hola Sergio,


> Hello everybody.
>
> I have a routing block with the following commands:
>
>         avp_db_query("select uuid from usr_preferences where value =  
> '$rU'", "$avp(s:test)");
>
>         if($(avp(s:test){s.len}) != 0)
>         {
>                 xlog("L_INFO", "found\n");
>                 setflag(4);
>         }
>         else
>         {
>                 xlog("L_INFO", "not found\n");
>         };
>
>         avp_delete("$avp(s:test)/g");
>
> When query returns 0 rows, this error appears in log:
>
> Sep 12 17:24:11 [663] CRITICAL:core:comp_scriptvar: cannot get left  
> var value.
>
> Is there a way to avoid it?


Instead of:

if($(avp(s:test){s.len}) != 0)

You can do:

if (is_avp_set("$avp(test)"))


Saludos
JesusR.

------------------------------------
Jesus Rodriguez
VozTelecom Sistemas, S.L.
jesusr at voztele.com
http://www.voztele.com
Tel. 902360305
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