[Kamailio-Users] Storing nonscalar types (lists)

[Daniel-Constantin Mierla]

Hello,

On 02/22/2010 12:33 PM, Alex Balashov wrote:
> Are AVP arrays still the only way to create a list of scalars as of K 
> 3.0.0?  Or are there other, more graceful ways to accommodate this 
> need now?
>
> AVPs are a very useful feature, though the syntax is not documented in 
> 'avpops' or the cookbook except rather incidentally:
>
>    $var(i) = 0;
>
>    while(is_avp_set("$(avp(s:somename)[$var(i)])")) {
>            xlog("L_INFO", "Value at index $var(i): 
> $(avp(s:somename)][$var(i)])\n");
>            $var(i) = $var(i) + 1;
>    }
>
> Is there a better way to handle this now, perhaps via some features 
> imported from SER?  Script variables ($var(...)) do not support 
> subscripts judging by the cookbook;  do they?
no, they are single-value variables.

>   Are there other options I am unaware of?
There is no dedicated array type. In some cases you can use a hash table 
and simulate an array by key value:

$var(i) = 0;
$sht(a=>[$var(i)]) = 1;
$var(i) = 1;
$sht(a=>[$var(i)]) = 2;

But it is only about how you define the keys, not a real array behind.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
Kamailio SIP Router Masterclass, Berlin, March 22-26, 2010
* http://www.asipto.com/index.php/sip-router-masterclass/