Hello,
There seems to be an implementational difference in interpolation of PVs
in AVP and XAVP identifiers and/or field names.
The pseudovariables documentation[1] on classical AVPs says:
The 'id' can be:
...
pseudo variable - if value of pv is integer, id is integer,
if string, id is string
So, for example, this composition of variables works:
$var(f) = 'donkey';
$avp($var(f) = 'eehaw';
xlog("L_INFO", "Donkey says: $avp(donkey)\n");
It correctly prints:
Donkey says: eehaw
Making some assumptions, I tried this, and it did not work similarly as
expected:
$var(f) = 'donkey';
$xavp(r=>$var(f)) = 'eehaw';
xlog("L_INFO", "Donkey says: $xavp(r=>donkey)\n");
This prints:
Donkey says: <null>
And a PV dump confirms that the PV value is not interpolated:
Mar 31 18:26:15 localhost /usr/local/sbin/kamailio[2399]: INFO: debugger
[debugger_api.c:1799]: dbg_dump_json(): {"$xavp(r)":[{"$var(f)":["eehaw"]}]}
Interpolation of variables does not work for either field or stem names.
Is this a design principle of XAVPs, or an oversight?
Thanks,
-- Alex
[1]
http://www.kamailio.org/wiki/cookbooks/4.2.x/pseudovariables#avp_id_-_avps
--
Alex Balashov | Principal | Evariste Systems LLC
303 Perimeter Center North, Suite 300
Atlanta, GA 30346
United States
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
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