python - 如何使用 Python 从 MongoDB 中的此文档中删除值

Question

我有一个这样结构的文档

{
    "_id" : ObjectId("564c0cb748f9fa2c8cdeb20f"),
    "username" : "blah",
    "useremail" : "blah@blahblah.com",
    "groupTypeCustomer" : true,
    "addedpartners" : [
        "562f1a629410d3271ba74f74",
        "562f1a6f9410d3271ba74f83"
    ],
    "groupName" : "Mojito",
    "groupTypeSupplier" : false,
    "groupDescription" : "A group for fashion designers"
}

现在我想从此“addedpartners”数组中删除其中一个值并更新文档。我只想从 addedpartners 数组中删除 562f1a6f9410d3271ba74f83

这是我之前尝试过的。

db.myCollection.update({'_id':'564c0cb748f9fa2c8cdeb20f'},{'$pull':{'addedpartners':'562f1a6f9410d3271ba74f83'}})

Answer 1

db.myCollection.update(
  { _id: ObjectId(id) },
  { $pull: { 'addedpartners': '562f1a629410d3271ba74f74' } }
);

试试这个