db_bulk_get: Query many documents at once

In sofa: Connector to 'CouchDB'

Description

Query many documents at once

Usage

db_bulk_get(cushion, dbname, docid_rev, as = "list", ...)

Arguments

cushion	A Cushion object. Required.
dbname	(character) Database name. Required.
docid_rev	A list of named lists, each of which must have the slot id, and optionally rev for the revision of the document id
as	(character) One of list (default) or json
...	Curl args passed on to HttpClient

Value

Either a list or json (depending on as parameter)

Examples

## Not run: 
# initialize a CouchDB connection
user <- Sys.getenv("COUCHDB_TEST_USER")
pwd <- Sys.getenv("COUCHDB_TEST_PWD")
(x <- Cushion$new(user=user, pwd=pwd))

if ("bulkgettest" %in% db_list(x)) {
  invisible(db_delete(x, dbname="bulkgettest"))
}
db_create(x, dbname="bulkgettest")
db_bulk_create(x, "bulkgettest", mtcars)
res <- db_query(x, dbname = "bulkgettest", selector = list(cyl = 8))

# with ids only
ids <- vapply(res$docs, "[[", "", "_id")
ids_only <- lapply(ids[1:5], function(w) list(id = w))
db_bulk_get(x, "bulkgettest", docid_rev = ids_only)

# with ids and revs
ids_rev <- lapply(res$docs[1:3],
  function(w) list(id = w$`_id`, rev = w$`_rev`))
db_bulk_get(x, "bulkgettest", docid_rev = ids_rev)

## End(Not run)

sofa documentation built on July 8, 2020, 6:53 p.m.