Pipeline Stages — match • mongopipe

These functions translate R code to json readable by Mongodb.

Usage

match(x, ...)

# S3 method for class 'mongopipe'
match(x, ...)

field(x, ...)

# S3 method for class 'mongopipe'
field(x, ...)

lookup(x, ...)

# S3 method for class 'mongopipe'
lookup(x, from, local_field = from, foreign_field = "_id", as = from, ...)

unwind(x, ...)

# S3 method for class 'mongopipe'
unwind(x, field, ...)

limit(x, ...)

# S3 method for class 'mongopipe'
limit(x, limit, ...)

project(x, ...)

# S3 method for class 'mongopipe'
project(x, ...)

Arguments

x: Object of class mongopipe
...: list object
from: Collection to join
local_field: Field from the input documents
foreign_field: Field from the documents of the "from" collection
as: Name of output array field (Default: from)
field: Field to unwind.
limit: Integer to limit the number of documents.

Value

Object of type mongopipe.