Aggregation Expression - $floor

Function Build

Build $floor with the Floor function from the aggregation package.

// bson.D{bson.E{Key:"roundedPrice", Value:bson.D{bson.E{Key:"$floor", Value:"$price"}}}}
result := aggregation.Floor("roundedPrice", "$price")

Method Build (Builder)

Build $floor with the Floor method from aggregation.NewBuilder().

// bson.D{bson.E{Key:"roundedPrice", Value:bson.D{bson.E{Key:"$floor", Value:"$price"}}}}
result := aggregation.NewBuilder().
    Floor("roundedPrice", "$price").
    Build()

Build Without Key

When an expression needs to be passed as an argument to another expression, use a WithoutKey variant to build an expression fragment without an output field name.

FloorWithoutKey

This variant is currently available as a builder method.

Method build (Builder):

// bson.D{bson.E{Key:"$floor", Value:"$price"}}
expr := aggregation.NewBuilder().
    FloorWithoutKey("$price").
    Build()