CODEWITHSUNDEEP
mongodbindexing
Leabdalla
Leabdalla

Reputation: 656

prevent duplicates of multiplefields with index

My document:

{
    "age":"20",
    "name":"leandro"
}

I need prevent inserting new documents if another exists with same age and email. Can I do this using index?

Upvotes: 2

Views: 174

Answers (1)

Parvin Gasimzade
Parvin Gasimzade

Reputation: 26012

Yes you can do it by creating index with unique=true as follows. After creating index, if you try to insert a document with same age & name then you will get duplicate key exception.

db.myObject.ensureIndex({age:1, name:1}, {unique : true})

For details you can read Create a Unique Index document.

Upvotes: 2

Related Questions