addOperation method
Implementation
void addOperation(TransactionOperation op) {
if (_operations.contains(op)) {
throw StateError("Operation already in transaction: $op");
}
if (_committed) {
throw StateError("Transaction already committed:\n$this");
}
if (_aborted) {
throw StateError("Transaction already aborted:\n$this");
}
if (_commitCalled) {
throw StateError("Transaction is committing:\n$this");
}
_initTime ??= DateTime.now();
if (_operations.isEmpty) {
_addToAPIRequest();
}
_operations.add(op);
op.id = _operations.length;
}