mongo.bson.buffer.append.element: Append a mongo.bson.iterator's element into a...
In jonkatz2/rmongodb: R-MongoDB driver

Description Usage Arguments Details Value See Also Examples

Append a mongo.bson.iterator's element into a mongo.bson.buffer.

1	mongo.bson.buffer.append.element(buf, name, value)

buf

(mongo.bson.buffer) The buffer object to which to append.

name

(string) The name (key) of the subobject field appended to the buffer.

If NULL, the name appended will come from the element pointed to by the iterator.

value

A (mongo.bson.iterator) object.

mongo.bson.buffer.append() will detect if its value parameter is a mongo.bson.iterator object and perform the same action as this function.

TRUE if successful; otherwise, FALSE if an error occured appending the data.

mongo.bson,
mongo.bson.buffer,
mongo.bson.find,
mongo.bson.from.list,
mongo.bson.buffer.append.

name <- mongo.bson.from.list(list(first="Joe", last="Smith"))
iter <- mongo.bson.find(name, "last")
buf <- mongo.bson.buffer.create()
mongo.bson.buffer.append.element(buf, "last", iter)
b <- mongo.bson.from.buffer(buf)

# the above will create a mongo.bson object (b) of the following form:
# { "last" : "Smith" }