mongo.timestamp: The mongo.timestamp class

In jonkatz2/rmongodb: R-MongoDB driver

Description

Objects of class "mongo.timestamp" are an extension of the POSIXct class. They have their increment value stored in the "increment" attribute of the object.

Details

See http://www.mongodb.org/display/DOCS/Timestamp+Data+Type

mongo.timestamp objects have "mongo.timestamp", "POSIXct" & "POSIXt" as their class so that mongo.bson.buffer.append() may detect them and append the appropriate BSON code-typed value to a buffer.

These mongo.timestamp values may also be present in a list and will be handled properly by mongo.bson.buffer.append.list() and mongo.bson.from.list().

See Also

mongo.timestamp.create,
mongo.bson.buffer.append,
mongo.bson.buffer.append.list,
mongo.bson.buffer,
mongo.bson.

Examples

mongo <- mongo.create()
if (mongo.is.connected(mongo)) {
    buf <- mongo.bson.buffer.create()
    # special Null timestamp -- automatically filled in
    # if one of first two fields in a record
    ts <- mongo.timestamp.create(0,0)
    mongo.bson.buffer.append(buf, "InsertTime", ts)
    mongo.bson.buffer.append(buf, "name", "Joe")
    b <- mongo.bson.from.buffer(buf)
    mongo.insert(mongo, "test.people", b)

    # create using a POSIXlt
    ts <- mongo.timestamp.create(strptime("05-12-2012",
        "%m-%d-%Y"), increment=1)
}

jonkatz2/rmongodb documentation built on May 19, 2019, 7:30 p.m.