Status UpdateDriver::createFromQuery(const BSONObj& query, mutablebson::Document& doc) {
BSONObjIteratorSorted i(query);
while (i.more()) {
BSONElement e = i.next();
// TODO: get this logic/exclude-list from the query system?
if (e.fieldName()[0] == '$' || e.fieldNameStringData() == "_id")
continue;
if (e.type() == Object && e.embeddedObject().firstElementFieldName()[0] == '$') {
// we have something like { x : { $gt : 5 } }
// this can be a query piece
// or can be a dbref or something
int op = e.embeddedObject().firstElement().getGtLtOp();
if (op > 0) {
// This means this is a $gt type filter, so don't make it part of the new
// object.
continue;
}
if (mongoutils::str::equals(e.embeddedObject().firstElement().fieldName(),
"$not")) {
// A $not filter operator is not detected in getGtLtOp() and should not
// become part of the new object.
continue;
}
}
// Add to the field to doc after expanding and checking for conflicts.
FieldRef elemName;
const StringData& elemNameSD(e.fieldNameStringData());
elemName.parse(elemNameSD);
size_t pos;
mutablebson::Element* elemFound = NULL;
Status status = pathsupport::findLongestPrefix(elemName, doc.root(), &pos, elemFound);
// Not NonExistentPath, of OK, return
if (!(status.code() == ErrorCodes::NonExistentPath || status.isOK()))
return status;
status = pathsupport::createPathAt(elemName,
0,
doc.root(),
doc.makeElementWithNewFieldName(
elemName.getPart(elemName.numParts()-1),
e));
if (!status.isOK())
return status;
}
return Status::OK();
}
void storageValid(const mutablebson::Document& doc) {
auto currElem = doc.root().leftChild();
while (currElem.ok()) {
if (currElem.getFieldName() == idFieldName) {
switch (currElem.getType()) {
case BSONType::RegEx:
case BSONType::Array:
case BSONType::Undefined:
uasserted(ErrorCodes::InvalidIdField,
str::stream() << "The '_id' value cannot be of type "
<< typeName(currElem.getType()));
default:
break;
}
}
// Validate this child element.
const auto deep = true;
const uint32_t recursionLevel = 1;
storageValid(currElem, deep, recursionLevel);
currElem = currElem.rightSibling();
}
}
auto arrayFilter = fromjson("{'i.c': 0}");
boost::intrusive_ptr<ExpressionContextForTest> expCtx(new ExpressionContextForTest());
std::map<StringData, std::unique_ptr<ExpressionWithPlaceholder>> arrayFilters;
auto parsedFilter = assertGet(MatchExpressionParser::parse(arrayFilter, expCtx));
arrayFilters["i"] = assertGet(ExpressionWithPlaceholder::make(std::move(parsedFilter)));
std::set<std::string> foundIdentifiers;
UpdateObjectNode root;
ASSERT_OK(UpdateObjectNode::parseAndMerge(&root,
modifiertable::ModifierType::MOD_SET,
update["$set"]["a.$[i].b"],
expCtx,
arrayFilters,
foundIdentifiers));
mutablebson::Document doc(fromjson("{a: [{c: 0}, {c: 0}, {c: 1}]}"));
ASSERT_OK(doc.root()["a"][1]["c"].setValueInt(1));
ASSERT_OK(doc.root()["a"][2]["c"].setValueInt(0));
addIndexedPath("a");
root.apply(getApplyParams(doc.root()));
}
TEST_F(UpdateArrayNodeTest, UpdateForEmptyIdentifierIsAppliedToAllArrayElements) {
auto update = fromjson("{$set: {'a.$[]': 1}}");
boost::intrusive_ptr<ExpressionContextForTest> expCtx(new ExpressionContextForTest());
std::map<StringData, std::unique_ptr<ExpressionWithPlaceholder>> arrayFilters;
std::set<std::string> foundIdentifiers;
UpdateObjectNode root;
ASSERT_OK(UpdateObjectNode::parseAndMerge(&root,
modifiertable::ModifierType::MOD_SET,
update["$set"]["a.$[]"],
expCtx,
Status UpdateDriver::populateDocumentWithQueryFields(const CanonicalQuery* query,
mutablebson::Document& doc) const {
MatchExpression* root = query->root();
MatchExpression::MatchType rootType = root->matchType();
// These copies are needed until we apply the modifiers at the end.
std::vector<BSONObj> copies;
// We only care about equality and "and"ed equality fields, everything else is ignored
if (rootType != MatchExpression::EQ && rootType != MatchExpression::AND)
return Status::OK();
if (isDocReplacement()) {
BSONElement idElem = query->getQueryObj().getField("_id");
// Replacement mods need the _id field copied explicitly.
if (idElem.ok()) {
mb::Element elem = doc.makeElement(idElem);
return doc.root().pushFront(elem);
}
return Status::OK();
}
// Create a new UpdateDriver to create the base doc from the query
Options opts;
opts.logOp = false;
opts.multi = false;
opts.upsert = true;
opts.modOptions = modOptions();
UpdateDriver insertDriver(opts);
insertDriver.setContext(ModifierInterface::ExecInfo::INSERT_CONTEXT);
// If we are a single equality match query
if (root->matchType() == MatchExpression::EQ) {
EqualityMatchExpression* eqMatch =
static_cast<EqualityMatchExpression*>(root);
const BSONElement matchData = eqMatch->getData();
BSONElement childElem = matchData;
// Make copy to new path if not the same field name (for cases like $all)
if (!root->path().empty() && matchData.fieldNameStringData() != root->path()) {
BSONObjBuilder copyBuilder;
copyBuilder.appendAs(eqMatch->getData(), root->path());
const BSONObj copy = copyBuilder.obj();
copies.push_back(copy);
childElem = copy[root->path()];
}
// Add this element as a $set modifier
Status s = insertDriver.addAndParse(modifiertable::MOD_SET,
childElem);
if (!s.isOK())
return s;
}
else {
// parse query $set mods, including only equality stuff
for (size_t i = 0; i < root->numChildren(); ++i) {
MatchExpression* child = root->getChild(i);
if (child->matchType() == MatchExpression::EQ) {
EqualityMatchExpression* eqMatch =
static_cast<EqualityMatchExpression*>(child);
const BSONElement matchData = eqMatch->getData();
BSONElement childElem = matchData;
// Make copy to new path if not the same field name (for cases like $all)
if (!child->path().empty() &&
matchData.fieldNameStringData() != child->path()) {
BSONObjBuilder copyBuilder;
copyBuilder.appendAs(eqMatch->getData(), child->path());
const BSONObj copy = copyBuilder.obj();
copies.push_back(copy);
childElem = copy[child->path()];
}
// Add this element as a $set modifier
Status s = insertDriver.addAndParse(modifiertable::MOD_SET,
childElem);
if (!s.isOK())
return s;
}
}
}
// update the document with base field
Status s = insertDriver.update(StringData(), &doc);
copies.clear();
if (!s.isOK()) {
return Status(ErrorCodes::UnsupportedFormat,
str::stream() << "Cannot create base during"
" insert of update. Caused by :"
<< s.toString());
}
return Status::OK();
}