在 mongo DB 中,我有一个处理包含设备(“dispositivos”)和这些设备包含传感器(“sensores”)的建筑物(“centros”)的集合。我正在尝试更新其中一个传感器。建筑物由它们的“_id”标识,设备由它们的“uid”标识,传感器由它们的“变量名称”(“变量”)标识。我已经尝试遵循 StackOverflow 上的一些示例,但没有成功。
这是我的近似值:
db.collection.update({
"uid": "e898b585-d855-4017-9fe4-0644360f9d1b"
},
{
"$set": {
"dispositivos.$[dispositivo].sensores.$[sensor]": {
"variable": "Plutonio",
"unidad": "yuyuyuyuuyu"
}
}
},
{
"multi": false,
"upsert": false,
arrayFilters: [
{
"dispositivo.uid": "e898b585-d855-4017-9fe4-064386kkkkkk",
"sensor.variable": "intensidad"
}
]
})
但它给了我以下错误:
fail to run update: multiple write errors: [{write errors: [{Error parsing array filter :: caused by :: Expected a single top-level field name, found 'sensor' and 'dispositivo'}]}, {<nil>}]
你有一个现场样本:https : //mongoplayground.net/p/KrWw2WxkSch
这是我的收藏样本:
[
{
"uid": "e898b585-d855-4017-9fe4-0644360f9d1b",
"nombre": "Colegio Rio Piles",
"tipo": "Colegio",
"direccion": {
"calle": "Paseo Dr. Fleming, 1109",
"codigoPostal": "33204",
"municipio": "Gijon",
"provincia": "Asturias",
"ubicacion": {
"latitud": "43.5351406",
"longitud": "-5.6345379"
}
},
"horario": {
"apertura": "09:00",
"cierre": "22:00"
},
"dispositivos": [
{
"uid": "e898b585-d855-4017-9fe4-064386055555",
"descripcion": "",
"tipo": "ANALIZADOR_RED",
"adquisicion": "30s",
"sensores": [
{
"variable": "voltaje",
"unidad": "V"
},
{
"variable": "intensidad",
"unidad": "A"
}
]
},
{
"uid": "e898b585-d855-4017-9fe4-064386kkkkkk",
"descripcion": "",
"tipo": "CONTADOR_AGUA",
"adquisicion": "30s",
"sensores": [
{
"variable": "caudal",
"unidad": "l/s"
}
]
}
]
}
]
感谢乔的帮助。那就是解决方案:
db.collection.update({
"uid": "e898b585-d855-4017-9fe4-0644360f9d1b"
},
{
"$set": {
"dispositivos.$[dispositivo].sensores.$[sensor]": {
"variable": "Plutonio",
"unidad": "yuyuyuyuuyu"
}
}
},
{
"multi": false,
"upsert": false,
arrayFilters: [
{
"dispositivo.uid": "e898b585-d855-4017-9fe4-064386055555"
},
{
"sensor.variable": "intensidad"
}
]
})
每个数组过滤器都应该是数组中它自己的对象,例如
arrayFilters: [
{
"dispositivo.uid": "e898b585-d855-4017-9fe4-064386kkkkkk"
},
{
"sensor.variable": "intensidad"
}
]
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