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->DeleteInternal(aCx, key, /* aFromCursor */ true, aRv);
if (aRv.Failed()) {
return nullptr;
}
request->SetSource(this);
if (mType == Type_ObjectStore) {
IDB_LOG_MARK("IndexedDB %s: Child Transaction[%lld] Request[%llu]: "
"database(%s).transaction(%s).objectStore(%s)."
"cursor(%s).delete(%s)",
"IndexedDB %s: C T[%lld] R[%llu]: IDBCursor.delete()",
IDB_LOG_ID_STRING(),
mTransaction->LoggingSerialNumber(),
request->LoggingSerialNumber(),
IDB_LOG_STRINGIFY(mTransaction->Database()),
IDB_LOG_STRINGIFY(mTransaction),
IDB_LOG_STRINGIFY(objectStore),
IDB_LOG_STRINGIFY(mDirection),
IDB_LOG_STRINGIFY(objectStore, primaryKey));
} else {
IDB_LOG_MARK("IndexedDB %s: Child Transaction[%lld] Request[%llu]: "
"database(%s).transaction(%s).objectStore(%s)."
"index(%s).cursor(%s).delete(%s)",
"IndexedDB %s: C T[%lld] R[%llu]: IDBCursor.delete()",
IDB_LOG_ID_STRING(),
mTransaction->LoggingSerialNumber(),
request->LoggingSerialNumber(),
IDB_LOG_STRINGIFY(mTransaction->Database()),
IDB_LOG_STRINGIFY(mTransaction),
IDB_LOG_STRINGIFY(objectStore),
IDB_LOG_STRINGIFY(mSourceIndex),
IDB_LOG_STRINGIFY(mDirection),
IDB_LOG_STRINGIFY(objectStore, primaryKey));
}
return request.forget();
}
