public void TestTransactionalSingleEntityGroupReadOnly()
{
string keyName = UpsertTaskList();
Key taskListKey = _db.CreateKeyFactory("TaskList")
.CreateKey(keyName);
Entity taskListEntity = new Entity()
{
Key = taskListKey
};
_db.Upsert(taskListEntity);
// [START datastore_transactional_single_entity_group_read_only]
Entity taskList;
IReadOnlyList <Entity> tasks;
using (var transaction = _db.BeginTransaction(TransactionOptions.CreateReadOnly()))
{
taskList = transaction.Lookup(taskListKey);
var query = new Query("Task")
{
Filter = Filter.HasAncestor(taskListKey)
};
tasks = transaction.RunQuery(query).Entities;
transaction.Commit();
}
// [END datastore_transactional_single_entity_group_read_only]
Assert.Equal(taskListEntity, taskList);
Assert.Collection(tasks, task => { });
}
public void BeginTransaction_ReadOnly()
{
var db = DatastoreDb.Create(_fixture.ProjectId, _fixture.NamespaceId);
var keyFactory = db.CreateKeyFactory("readonly_test");
var options = TransactionOptions.CreateReadOnly();
using (var transaction = db.BeginTransaction(options))
{
transaction.Insert(new Entity {
Key = keyFactory.CreateIncompleteKey(), ["x"] = 3
});
var exception = Assert.Throws <RpcException>(() => transaction.Commit());
Assert.Equal(StatusCode.InvalidArgument, exception.Status.StatusCode);
}
}
public async Task BeginTransactionAsync_ReadOnly()
{
var db = _fixture.CreateDatastoreDb();
var keyFactory = db.CreateKeyFactory("readonly_test");
var options = TransactionOptions.CreateReadOnly();
using (var transaction = await db.BeginTransactionAsync(options))
{
transaction.Insert(new Entity {
Key = keyFactory.CreateIncompleteKey(), ["x"] = 3
});
var exception = await Assert.ThrowsAsync <RpcException>(() => transaction.CommitAsync());
Assert.Equal(StatusCode.InvalidArgument, exception.Status.StatusCode);
}
}