already_AddRefed<IDBRequest>
IDBCursor::Delete(JSContext* aCx, ErrorResult& aRv)
{
AssertIsOnOwningThread();
if (!mTransaction->IsOpen()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR);
return nullptr;
}
if (!mHaveValue || mType == Type_ObjectStoreKey || mType == Type_IndexKey) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR);
return nullptr;
}
if (!mTransaction->IsWriteAllowed()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_READ_ONLY_ERR);
return nullptr;
}
MOZ_ASSERT(mType == Type_ObjectStore || mType == Type_Index);
MOZ_ASSERT(!mKey.IsUnset());
IDBObjectStore* objectStore;
if (mType == Type_ObjectStore) {
objectStore = mSourceObjectStore;
} else {
objectStore = mSourceIndex->ObjectStore();
}
MOZ_ASSERT(objectStore);
const Key& primaryKey = (mType == Type_ObjectStore) ? mKey : mPrimaryKey;
JS::Rooted<JS::Value> key(aCx);
aRv = primaryKey.ToJSVal(aCx, &key);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsRefPtr<IDBRequest> request = objectStore->Delete(aCx, key, aRv);
if (aRv.Failed()) {
return nullptr;
}
request->SetSource(this);
#ifdef IDB_PROFILER_USE_MARKS
{
uint64_t requestSerial = request->GetSerialNumber();
if (mType == Type_ObjectStore) {
IDB_PROFILER_MARK("IndexedDB Request %llu: "
"database(%s).transaction(%s).objectStore(%s)."
"cursor(%s).delete(%s)",
"IDBRequest[%llu] MT IDBCursor.delete()",
requestSerial,
IDB_PROFILER_STRING(mTransaction->Database()),
IDB_PROFILER_STRING(mTransaction),
IDB_PROFILER_STRING(objectStore),
IDB_PROFILER_STRING(mDirection),
mObjectStore->HasValidKeyPath() ? "" :
IDB_PROFILER_STRING(primaryKey));
} else {
IDB_PROFILER_MARK("IndexedDB Request %llu: "
"database(%s).transaction(%s).objectStore(%s)."
"index(%s).cursor(%s).delete(%s)",
"IDBRequest[%llu] MT IDBCursor.delete()",
requestSerial,
IDB_PROFILER_STRING(mTransaction->Database()),
IDB_PROFILER_STRING(mTransaction),
IDB_PROFILER_STRING(objectStore),
IDB_PROFILER_STRING(mSourceIndex),
IDB_PROFILER_STRING(mDirection),
mObjectStore->HasValidKeyPath() ? "" :
IDB_PROFILER_STRING(primaryKey));
}
}
#endif
return request.forget();
}
