rmongodb (version 1.8.0)

mongo.get.server.err: Retrieve an server error code from a mongo connection object

Description

Retrieve an server error code from a mongo connection object.

Usage

mongo.get.server.err(mongo)

Arguments

mongo

(mongo) a mongo connection object.

Value

(integer) Server error code

Details

mongo.find(), mongo.find.one(), mongo.index.create() set or clear this error code depending on whether they are successful or not.

mongo.get.last.err() and mongo.get.prev.err() both set or clear this error code according to what the server reports.

See Also

mongo.get.server.err.string, mongo.get.last.err, mongo.get.prev.err, mongo.find, mongo.find.one, mongo.index.create, mongo.

Examples

mongo <- mongo.create()
if (mongo.is.connected(mongo)) {
    # construct a query containing invalid operator
    buf <- mongo.bson.buffer.create()
    mongo.bson.buffer.start.object(buf, "age")
    mongo.bson.buffer.append(buf, "$bad", 1L)
    mongo.bson.buffer.finish.object(buf)
    query <- mongo.bson.from.buffer(buf)

    result <- mongo.find.one(mongo, "test.people", query)
    if (is.null(result)) {
        print(mongo.get.server.err.string(mongo))
        print(mongo.get.server.err(mongo))
    }
}