[OpenSIPS-Users] acc db_extra not allowing JSON variables

[Brett Nemeroff]

Bogdan,
I'm going to see if I can reproduce it.. I'll let you know what I find.


Thanks,
Brett


On Fri, Jan 25, 2013 at 6:15 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>wrote:

> **
> Hi Brett,
>
> The missing value warning is fixed on SVN.
>
> I was also trying to fix the concat issue, but not able to reproduce it. I
> tried 2 different cases:
>
>     $json(var1) := '{"string1":"String1data"}';
>     $json(var2) := '{"string2":"String2data"}';
>
>     $avp(result) = $json(var1/string1) + $json(var2/string2);
>
>     xlog("result is <$avp(result)> \n");
>
>
> or
>
>     $json(var1) := '{"string1":"String1data","string2":"String2data"}';
>     $json(var2) := '{"string2":"String2data"}';
>
>     $avp(result) = $json(var1/string1) + $json(var1/string2);
>
>     xlog("result is <$avp(result)> \n");
>
>
> In both cases I got the a valid output....
>
> Any help with it ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
>
> On 01/22/2013 02:13 PM, Bogdan-Andrei Iancu wrote:
>
> Hi Brett,
>
> So, some initial data:
>
> The $json variables are (as scope) the same as $var - which means they
> have visibility only per process (as names they do exist in all procs, but
> they have different instances / values in each proc), but inside the
> process they are global - visible to all messages, from all routes which
> are executed in that particular process (!so take care that to reset the
> json before usage as you may inherit some value from a previous execution
> in the same proc).
>
> Now, about your cases:
>
> 1) using a $json in extra_db - it is visibility issue - you set the json
> var for INVITE (in a process) and you try to read it for the BYE (in a
> different proc). Actually the error you get says that you try to read a
> $json which was never set.
>
> 2) using it from failure / onreply routes - same as above.
>
>
> Which leaves us with 2 real bugs:
>
> 1) when merging 2 jsons - the bogus len - we will look into it
>
> 2) the errors on missing values or tags - I will change them to DBG and to
> actually return NULL value to script.
>
> Thanks and regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
>
> On 01/16/2013 05:50 PM, Brett Nemeroff wrote:
>
> Bogdan,
> I'm actually getting all sorts of weird errors with the JSON module..
> Using it in place, for simple things it works great.
>
>  If I concatonate json variables and place them into an avp, I get junk
> at the end
>
>  $avp(result) = $json(somevar/string1) + $json(somevar/string2);
>
>  $avp(result) will be something like "String1dataString2dataM\002"
>
>  The M\002 is random.. Almost like a variable that isn't initialized.
>
>  Also. $json variables don't survive to onreply routes or failure routes.
> And they can't be used in db_extra. There also isn't a real good way to
> reliably check for the existence of a json element without throwing an
> error in the log
>
>  Thanks for looking at this. If there is anything I can do to help, let
> me know.
> -Brett
>
>
> On Wed, Jan 16, 2013 at 6:58 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>wrote:
>
>>  Hi Brett,
>>
>> Never tried something like that, but let me run some tests....
>>
>> Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>>
>>
>> On 01/15/2013 10:29 PM, Brett Nemeroff wrote:
>>
>>  Anyone else run into this? Anyone using JSON??
>>
>>  Thanks,
>> Brett
>>
>>
>> On Thu, Jan 10, 2013 at 12:37 AM, Brett Nemeroff <brett at nemeroff.com>wrote:
>>
>>> To make this more interesting.. I actually don't get the $json variable
>>> in a failure route either. There definitely seems to be something up with
>>> this variable type's scope.
>>>
>>>  For now, I save the json into a dlg_val, and restore as needed.
>>> However, it'd be nice to let it persist. Is there a way to do that?
>>>
>>>  Thanks,
>>> Brett
>>>
>>>
>>> On Wed, Jan 9, 2013 at 12:20 PM, Brett Nemeroff <brett at nemeroff.com>wrote:
>>>
>>>> Hey All,
>>>> I'm trying to add $json variables to db_extra. I'm 100% sure the
>>>> variables are set as I'm using them all over my script. However, when acc
>>>> wants to write, I get errors like this:
>>>>
>>>>
>>>>  Jan  9 18:10:52 development /usr/local/sbin/opensips[10469]:
>>>> ERROR:json:pv_get_json: Variable named:cdata1 not found
>>>>
>>>> Jan  9 18:10:52 development /usr/local/sbin/opensips[10469]:
>>>> ERROR:acc:extra2strar: failed to get 'element'
>>>>
>>>>  Like I said, I'm 100% sure the variable is set: $json(cdata1/element)
>>>>
>>>>  It's almost like it just doesn't support $json or that it's "out of
>>>> scope"
>>>>
>>>>  Thanks!
>>>>  -Brett
>>>>
>>>>
>>>
>>
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