问题
For some reason I use MongoDB native ObjectId as primary key for ticket identification number for my application. Is it possible to search documents with ObjectId parts?
For example: I have documents:
[
{_id: ObjectId("577f8e6537e4a676203c056a")},
{_id: ObjectId("577f8ee437e4a676203c0577")},
{_id: ObjectId("577f8f3d717b6fdd22a1684c")}
]
And I want to query it by its _id
contains "0577" so that it returns
{_id: ObjectId("577f8ee437e4a676203c0577")}
I have tried regex before. It returned []
db.transaction.find({_id: /0577/i}) ---> return 0
db.transaction.find({_id: {$regex: /0577/, $options: "i"}}) ---> return 0
回答1:
I think you can use $where like this:
db.transaction.find({ $where: "this._id.str.match(/.*0577/)" })
来源:https://stackoverflow.com/questions/38277495/how-to-find-document-by-parts-of-objectid