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[英]How to filter an array of objects to remove elements based on condition in MongoDB aggregate?
[英]How to remove elements of an array based on the array element's data in MongoDB
如果包含特定数据,如何编写Mongo查询以删除数组的元素?
{
"_id": ObjectId("ajdi293akjf83rhfsf398"),
"one": "oneData",
"two": [
{
"_id":ObjectId("akjf82ijikfj83jkfkj3"),
"value": 1
},
{
"_id":ObjectId("akjf82ijikfj83jkfkj3"),
"value": 2
},
{
"_id":ObjectId("akjf82ijikfj83jkfkj3"),
"value": 1
}
]
}
如果元素包含的value
1
则需要删除two
元素
{
"_id": ObjectId("ajdi293akjf83rhfsf398"),
"one": "oneData",
"two": [
{
"_id":ObjectId("akjf82ijikfj83jkfkj3"),
"value": 2
}
]
}
请提前告诉我如何实现此“非常感谢”。
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