Status LiteParsedQuery::init(const string& ns, int ntoskip, int ntoreturn, int queryOptions,
const BSONObj& queryObj, const BSONObj& proj,
bool fromQueryMessage) {
_ns = ns;
_ntoskip = ntoskip;
_ntoreturn = ntoreturn;
_options = queryOptions;
_proj = proj.getOwned();
if (_ntoskip < 0) {
return Status(ErrorCodes::BadValue, "bad skip value in query");
}
if (_ntoreturn < 0) {
// _ntoreturn greater than zero is simply a hint on how many objects to send back per
// "cursor batch". A negative number indicates a hard limit.
_wantMore = false;
_ntoreturn = -_ntoreturn;
}
if (fromQueryMessage) {
BSONElement queryField = queryObj["query"];
if (!queryField.isABSONObj()) { queryField = queryObj["$query"]; }
if (queryField.isABSONObj()) {
_filter = queryField.embeddedObject().getOwned();
Status status = initFullQuery(queryObj);
if (!status.isOK()) { return status; }
}
else {
// TODO: Does this ever happen?
_filter = queryObj.getOwned();
}
}
else {
// This is the debugging code path.
_filter = queryObj.getOwned();
}
_hasReadPref = queryObj.hasField("$readPreference");
if (!isValidSortOrder(_sort)) {
return Status(ErrorCodes::BadValue, "bad sort specification");
}
_sort = normalizeSortOrder(_sort);
return Status::OK();
}
Status LiteParsedQuery::init(const string& ns, int ntoskip, int ntoreturn, int queryOptions,
const BSONObj& queryObj, const BSONObj& proj,
bool fromQueryMessage) {
_ns = ns;
_ntoskip = ntoskip;
_ntoreturn = ntoreturn;
_options = queryOptions;
_proj = proj.getOwned();
if (_ntoskip < 0) {
return Status(ErrorCodes::BadValue, "bad skip value in query");
}
if (_ntoreturn == std::numeric_limits<int>::min()) {
// _ntoreturn is negative but can't be negated.
return Status(ErrorCodes::BadValue, "bad limit value in query");
}
if (_ntoreturn < 0) {
// _ntoreturn greater than zero is simply a hint on how many objects to send back per
// "cursor batch". A negative number indicates a hard limit.
_wantMore = false;
_ntoreturn = -_ntoreturn;
}
if (fromQueryMessage) {
BSONElement queryField = queryObj["query"];
if (!queryField.isABSONObj()) { queryField = queryObj["$query"]; }
if (queryField.isABSONObj()) {
_filter = queryField.embeddedObject().getOwned();
Status status = initFullQuery(queryObj);
if (!status.isOK()) { return status; }
}
else {
// TODO: Does this ever happen?
_filter = queryObj.getOwned();
}
}
else {
// This is the debugging code path.
_filter = queryObj.getOwned();
}
_hasReadPref = queryObj.hasField("$readPreference");
if (!_sort.isEmpty()) {
if (!isValidSortOrder(_sort)) {
return Status(ErrorCodes::BadValue, "bad sort specification");
}
_sort = normalizeSortOrder(_sort);
}
// Min and Max objects must have the same fields.
if (!_min.isEmpty() && !_max.isEmpty()) {
if (!_min.isFieldNamePrefixOf(_max) || (_min.nFields() != _max.nFields())) {
return Status(ErrorCodes::BadValue, "min and max must have the same field names");
}
}
// Can't combine a normal sort and a $meta projection on the same field.
BSONObjIterator projIt(_proj);
while (projIt.more()) {
BSONElement projElt = projIt.next();
if (isTextScoreMeta(projElt)) {
BSONElement sortElt = _sort[projElt.fieldName()];
if (!sortElt.eoo() && !isTextScoreMeta(sortElt)) {
return Status(ErrorCodes::BadValue,
"can't have a non-$meta sort on a $meta projection");
}
}
}
// All fields with a $meta sort must have a corresponding $meta projection.
BSONObjIterator sortIt(_sort);
while (sortIt.more()) {
BSONElement sortElt = sortIt.next();
if (isTextScoreMeta(sortElt)) {
BSONElement projElt = _proj[sortElt.fieldName()];
if (projElt.eoo() || !isTextScoreMeta(projElt)) {
return Status(ErrorCodes::BadValue,
"must have $meta projection for all $meta sort keys");
}
}
}
return Status::OK();
}
