jq: pick value if field exist - jq

Question

This is my script:
def pick_partOf($uids):
(reduce $uids[] as $uid (
{};
. + ($uid | {(.oid1): .id})
)) as $dict
| map(. + { partOf: $dict[."parent-identifier-value"] } | del(..|nulls));
def pick_organization:
{
resourceType: "Organization",
active: true,
partOf: .partOf?
};
pick_partOf($identifiers) | pick_organization
Problem here, is that sometimes some input objects doesn't contains ."parent-identifier-value", and I'm getting:
jq: error (at rsan.json:7): Cannot index object with null
Those are my input objects:
{
"identifier-value": "61",
"name": "name61"
}
{
"id": "62",
"name": "name62",
"parent-identifier-value": "61"
}
Currently, I'm launching jq using empty array as $identifiers arg:
jq -s -f build-organization-bundle.jq --argjson identifiers '[]' rsan.json
However, my identifiers is an other json files like this:
{
"id": "be8a02b6-54b9-450f-bf45-f28ab7ebf2dd",
"oid1": "61"
}
{
"id": "f1652f3a-bca9-433c-a2c4-c924811196f6",
"oid1": "62"
}
I've tried with:
def pick_partOf($uids):
(reduce $uids[] as $uid (
{};
. + ($uid | {(.oid1): .id})
)) as $dict
| map(. + (
if (.|has("parent-identifier-value")) then
{ partOf: $dict[."parent-identifier-value"] }
else null end
))
| del(..|nulls));
But here I'm facing with some syntax issue I don't quite figure out how to fix it.

Answer 1

You did not specify why you want pick_partOf to achieve.
If its output should be
{
"identifier-value": "61",
"name": "name61"
}
{
"id": "62",
"name": "name62",
"parent-identifier-value": "61",
"partOf": "be8a02b6-54b9-450f-bf45-f28ab7ebf2dd"
}
then you can use
if ."parent-identifier-value" then
.partOf = $dict[."parent-identifier-value"]
else
.
end
Demo on jqplay
Repeating ."parent-identifier-value" was annoying me.
."parent-identifier-value" as $piv |
if $piv then .partOf = $dict[$piv] else . end
Demo on jqplay