match: Pipeline Stages

In mongopipe: Query MongoDB Documents with R

Description

These functions translate R code to json readably 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.

mongopipe documentation built on Jan. 20, 2021, 5:08 p.m.