Update single field value in nested array without modifying other ones? - php

Question

I am trying to modify single field value, but whenever I do it it erases all other fields leaving updated field only, how can I modify a single field witouth affecting the other ones?
so far this is what I'm doing:
//
$updateResult2 = $coll_rutas->updateOne(
/* LIMIT TO ROUTE ID */
[
"_id" => new \MongoDB\BSON\ObjectId($ruta_id)
],
/* UPDATE VALUE */
[
'$set' => [
'destinos.$[d]' => [
"horas" => "1",
"minutos" => "15",
"millas" => "150",
"orden" => "1",
"notas" => "demo notes",
],
],
],
/* WHERE FILTER */
[
"upsert" => true,
'arrayFilters' => [
['d.ciudad_id' => 47]
]
]
);
//var_dump($updateResult2); exit;
This is the original mongo Object:
"destinos": [
{
"ciudad_id": "47",
"nombre_destino": "Salt Lake City, Utah",
"horas": "0",
"minutos": "0",
"millas": "0",
"orden": 1,
"notas": null,
"origenes": [
{
"ciudad_id": "45",
"nombre_origen": "Provo, Utah",
"orden": 1,
"notas": null,
"base_price": 0
}
]
}
],
With my changes it erases origenes array, ciudad_id and nombre destino, leaving it this way:
"destinos": [
{
"horas": "1",
"minutos": "15",
"millas": "150",
"orden": "1",
"notas": "demo notes"
]
}
],

Answer 1

With this code:
'$set' => [
'destinos.$[d]' => [
"horas" => "1",
"minutos" => "15",
"millas" => "150",
"orden" => "1",
"notas" => "demo notes",
],
]
you are targeting the destinos.$[d] element and replacing all of its contents with the new data structure.
You need to use the .(dot) notation to target each element in the nested array. It's a bit verbose but this would work:
'$set' => [
'destinos.$[d].horas' => "1",
'destinos.$[d].minutos' => "15",
'destinos.$[d].millas' => "150",
'destinos.$[d].orden' => "1",
'destinos.$[d].notas' => "demo notes"
]