[OpenSIPS-Users] overwriting AVPs at certain index

[Bogdan-Andrei Iancu]

Hi Jayesh,

yes, you cannot initialized different vals for an AVP by using 
indexes...Why ? it is simple - the values are a continuous array, and by 
allowing init via indexes, you cannot guarantee this continuity (like 
setting val index 0 and setting val index 3....that is bogus).

Regards,
Bogdan

Jayesh Nambiar wrote:
> Thank you Bogdan, actually this does a proper job. What I was doing 
> was slightly different which I realized later, I was trying to 
> initialize the AVP like this directly in my script:
> $avp(i:999) = 0;
> $(avp(variable)[$avp(i:999]) = $avp(value);
>
> This results an error in syslog saying: 
> ERROR:core:pv_set_avp: Failed to replace avp
> ERROR:core:do_assign: setting PV failed
>
> I guess initializing an AVP is important with some value before 
> assigning a value to certain index, something like this:
> $avp(variable) = $avp(default_value);
> $avp(i:999) = 0;
> $(avp(variable)[$avp(i:999]) = $avp(value);
>
> This works properly !!! So is it good to conclude that initializing an 
> AVP is important before trying to assign a value at any particular index.
>
> --- Jayesh
>  
>
>     Hi Jayesh,
>
>     Just tried the following script and it did the right job:
>
>     <snap>
>        $avp(s:value1) = "abc";
>        $avp(s:value2) = "ABC";
>
>        $avp(s:variable) = $avp(s:value1);
>        $avp(i:999) = 0;
>        $(avp(s:variable)[$avp(i:999)]) = $avp(s:value2);
>
>        avp_print();
>     </snap>
>
>     and the result (from avp_print()) :
>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp: p=0xb5ab5e48,
>     flags=0x0000
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     id=<999>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     val_int=<0>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp: p=0xb5ab5e70,
>     flags=0x0003
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     name=<variable>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     val_str=<ABC / 3>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp: p=0xb5ab5dc8,
>     flags=0x0003
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     name=<value2>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     val_str=<ABC / 3>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp: p=0xb5ab5d88,
>     flags=0x0003
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     name=<value1>
>     Nov  4 11:32:49 [12046] INFO:avpops:ops_print_avp:
>     val_str=<abc / 3>
>
>
>     Can you post the error/log you get?
>
>     Regards,
>     Bogdan
>
>     Jayesh Nambiar wrote:
>     > Hi All,
>     > I am trying to overwrite certain values at specific index of AVP and
>     > it doesn't work as expected. How I do it is:
>     >
>     > $avp(variable) = $avp(value1);
>     > $avp(i:999) = 0;
>     > $(avp(variable)[$avp(i:999)]) = $avp(value2);
>     >
>     > While executing this, opensips logs an error saying unable to
>     replace
>     > AVPs. Is the syntax wrong somewhere? I do this as I don't want
>     to add
>     > multiple values into single AVP and also I dont want to call
>     > avp_delete function before assigning a new value to the AVP.
>     Moreover
>     > the value at $avp(i:999) can change and thus it is assigned to
>     another
>     > AVP.
>     >
>     > Any help related to AVP overwriting function would be very helpful.
>     >
>     > --- Jayesh
>
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>
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-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
15 - 19 November 2010, Edison, New Jersey, USA
www.voice-system.ro