CODEWITHSUNDEEP
phpmongodb
gprusiiski
gprusiiski

Reputation: 450

PHP MongoDB remove document and return it

Is there something like findAndModify() but for remove() in mongodb. I need to remove a document and in the same time to retrieve its contents. I`m searching for a solution that does it in one "query" to the mongodb server. Thanks.

Upvotes: 2

Views: 518

Answers (2)

jmikola
jmikola

Reputation: 6922

MongoDB's findAndModify command supports a remove option. It is mutually exclusive with the update option, so you would specify remove instead of providing update with a "new object" (atomic modifiers or a replacement document). Also, while the new option would normally allow you to return the document in its pre- or post-update state, it doesn't apply to remove.

Upvotes: 3

Lix
Lix

Reputation: 47956

I do not believe that mongo has this functionality. I also don't really see why you would need this. If you identify your documents correctly (and use indexes where possible), the remove action will be very quick and very efficient.

However, once you have retrieved the document you want to remove, you can use it's _id attribute to find it again for removal.

var doc = db.data.find( { "please": "delete me" } );
db.data.remove( { "_id": doc._id } );

Mongo indexes your collections by _id as a default, so when you use it to identify a document (as we are doing with remove), the actual operation is very efficient.

Upvotes: 0

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