cursor collection::aggregate(const pipeline& pipeline, const options::aggregate& options) {
scoped_bson_t stages(bsoncxx::document::view(pipeline._impl->view_array()));
bsoncxx::builder::basic::document b;
if (options.allow_disk_use()) {
b.append(kvp("allowDiskUse", *options.allow_disk_use()));
}
if (options.collation()) {
b.append(kvp("collation", *options.collation()));
}
if (options.use_cursor()) {
b.append(kvp("cursor", [&options](sub_document sub_doc) {
if (options.batch_size()) {
sub_doc.append(kvp("batchSize", *options.batch_size()));
}
}));
}
if (options.max_time()) {
b.append(kvp("maxTimeMS", bsoncxx::types::b_int64{options.max_time()->count()}));
}
if (options.bypass_document_validation()) {
b.append(kvp("bypassDocumentValidation", *options.bypass_document_validation()));
}
if (options.hint()) {
b.append(kvp("hint", options.hint()->to_value()));
}
if (options.write_concern()) {
b.append(kvp("writeConcern", options.write_concern()->to_document()));
}
scoped_bson_t options_bson(b.view());
const ::mongoc_read_prefs_t* rp_ptr = NULL;
if (options.read_preference()) {
rp_ptr = options.read_preference()->_impl->read_preference_t;
}
return cursor(libmongoc::collection_aggregate(_get_impl().collection_t,
static_cast<::mongoc_query_flags_t>(0),
stages.bson(),
options_bson.bson(),
rp_ptr));
}
cursor collection::aggregate(const pipeline& pipeline, const options::aggregate& options) {
using namespace bsoncxx::builder::stream;
scoped_bson_t stages(pipeline._impl->view());
bsoncxx::builder::stream::document b;
if (options.allow_disk_use()) {
b << "allowDiskUse" << *options.allow_disk_use();
}
if (options.use_cursor()) {
auto inner = b << "cursor" << open_document;
if (options.batch_size()) {
inner << "batchSize" << *options.batch_size();
}
inner << close_document;
}
if (options.max_time()) {
b << "maxTimeMS" << bsoncxx::types::b_int64{options.max_time()->count()};
}
if (options.bypass_document_validation()) {
b << "bypassDocumentValidation" << *options.bypass_document_validation();
}
scoped_bson_t options_bson(b.view());
const ::mongoc_read_prefs_t* rp_ptr = NULL;
if (options.read_preference()) {
rp_ptr = read_preference()._impl->read_preference_t;
}
return cursor(libmongoc::collection_aggregate(_get_impl().collection_t,
static_cast<::mongoc_query_flags_t>(0),
stages.bson(), options_bson.bson(), rp_ptr));
}