Cakephp 3 Transaction management on multiple model operation - php

Question

I have a code block where multiple table database operation are done. I need to keep this code block in transaction. I am trying in following way in cakephp 3.
$saveStatus = 1;
$conn = ConnectionManager::get('default');
$conn->begin();
$tableArticles = TableRegistry::get('Articles');
$tableUsers = TableRegistry::get('Users');
$articlesEntity = $tableArticles->newEntities($categoriesArray);
foreach ($articlesEntity as $entity) {
if(!$tableArticles->save($entity))
{
$saveStatus = 0;
}
}
$usersEntity = $tableUsers->newEntities($usersArray);
foreach ($usersEntity as $entity) {
if(!$tableUsers->save($entity))
{
$saveStatus = 0;
}
}
if($saveStatus ==1)
{
$conn->commit();
}
else
{
$conn->rollback();
}
But the transaction works for only one table.I want multiple table operation should be in transaction.
In cake 2, we do transaction using begin() and commit() on each model data source like following.
$mealOptionDataSource = $this->MealOptionFood->getDataSource ();
$foodExtrasDataSource = $this->FoodExtras->getDataSource ();
$complexOptionDataSource = $this->ComplexOptionFood->getDataSource ();
$mealOptionDataSource->begin ();
$foodExtrasDataSource->begin ();
--- Code here---
$mealOptionDataSource->commit ();
$foodExtrasDataSource->commit ();
$complexOptionDataSource->commit ();
I can't find a way how to do it in cake 3.
Thank in advances.

Answer 1

Try this:
http://api.cakephp.org/3.1/class-Cake.Database.Connection.html#_transactional
$connection->transactional(function ($connection) {
$connection->newQuery()->delete('users')->execute();
});
In the transactional function, the 'commit' or 'rollback' occurs automatically depending on the result of all queries inside.