RE: JSON, DATA-GEN, YAJLDTAGEN, and Null

Scott.. I guess if I really, really wanted to have YAJLDTAGEN 'fix' this problem for me, I could maybe change to look for some reserved word (ex. *NULL). Like when it returns from yajl_gen_string In the scalarValue procedure. Just a thought. I may play around some.

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Scott Klement
Sent: Wednesday, February 12, 2020 5:01 PM
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: Re: JSON, DATA-GEN, YAJLDTAGEN, and Null

Hi Stephen,

Currently, it's not possible to generate a null value.  DATA-INTO and DATA-GEN do not support null indicators (NULLIND/%NULLIND), so there's no way to pass a null value from RPG to the DATA-GEN generator program.

Sorry.

-SK


On 2/12/2020 4:32 PM, Stephen Piland wrote:

I'm attempting to generate a JSON using DATA-GEN opcode and YAJLs YAJLDTAGEN. It is working great and I'm liking it a lot. I haven't been able to figure out how to set a value to NULL ("LocationId":null).

In the mainline, I'm setting the null indicator on the field in the DS (%nullind(jsonDoc.data(x).LocationId) when necessary. I do have the nullind on the field in the data structure that I indicate in DATA-GEN and thought that might do it (see below). Any thoughts?

I'll debug YAJLDTAGEN next.

dcl-ds jsonDoc qualified;
num_data int(10) inz(0);
dcl-ds data dim(100);
LocationId varchar(4) inz(' ') nullind;
ItemId varchar(12) inz(' ');
Price packed(9:3) inz(0);
End-ds;
End-ds;

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