nodbi (version 0.3.0)

docdb_exists: Check if a database exists

Description

Check if a database exists

Usage

docdb_exists(src, key, ...)

Arguments

src

source object, result of call to src

key

(chartacter) A key. ignored for mongo

...

Ignored for now

Value

logical, TRUE or FALSE

Details

Note that with etcd, you have to prefix a key with a forward slash.

Examples

# NOT RUN {
# CouchDB
(src <- src_couchdb())
docout <- docdb_create(src, key = "mtcars2", value = mtcars)
docdb_exists(src, "mtcars2")
docdb_exists(src, "asdfadf")

# Elasticsearch
(src <- src_elastic())
if (docdb_exists(src, "iris")) docdb_delete(src, "iris")
docdb_exists(src, "iris")
docdb_create(src, "iris", iris)
docdb_exists(src, "iris")
docdb_exists(src, "adfadf")

# Redis
(src <- src_redis())
docdb_create(src, "mtcars", mtcars)
docdb_exists(src, "mtcars")
docdb_exists(src, "asdfasf")

# MongoDB
src <- src_mongo(collection = "mtcars")
docdb_create(src, key = "mtcars", value = mtcars)
docdb_exists(src, "mtcars")

# SQLite
(src <- src_sqlite())
docdb_create(src, "mtcars", mtcars)
docdb_exists(src, "mtcars")
docdb_exists(src, "yellowcheese")
# }
# NOT RUN {
# }