CakePHP 3.x : transform updateAll() into save() loop, for a multiple edit page - cakephp

Question

I use audit-stash plugin which works fine with all my tables. But I have a particular function in which the user selects rows with checkboxes, and then changes a specific field to all of them. The table audits contains a fields called "primary_key" which seems not working for such case.
in my Controller, function, I put this:
$this->request->data;
$data = $this->request->data;
if($this->request->is(['patch', 'post', 'put']))
{
$ids = $this->request->data('data.AssetsAssignations.id');
$room_id = $this->request->data('room_id');
$this->AssetsAssignations->updateAll(
['room_id ' => $room_id ],
['id IN' => $ids]
);
}
in my table, I used this:
$this->addBehavior('AuditStash.AuditLog');
I was told that there is no way around this for audit-stash, because updateAll bypasses model callbacks by directly sending a query to the database.
I was suggested to update records one by one if I need to keep the log.
How can I transform my updateAll() code into a Save() loop ?
This try did not work for me, using save() and saveMany() :
$this->request->data;
$data = $this->request->data;
if($this->request->is(['patch', 'post', 'put']))
{
$ids = $this->request->data('data.AssetsAssignations.id');
$asset_status_id = $this->request->data('asset_status_id');
foreach($ids as $id) {
$this->AssetsAssignations->saveMany(
['asset_status_id ' => $asset_status_id ]
);
}
}
thanks in advance.

Answer 1

Actually you don't have to call get($id) for every id. This get the entity from the table and causes a lot of useless queries
if($this->request->is(['patch', 'post', 'put']))
{
$ids = $this->request->data('data.AssetsAssignations.id');
$asset_status_id = $this->request->data('asset_status_id');
$assetsAssignationsTable = TableRegistry::get('AssetsAssignations');
foreach($ids as $id) {
$assetsAssignation = $assetsAssignationsTable->newEntity(); // returns an empty entity
$assetsAssignation->id = $id; // assign the id to the entity
$assetsAssignation->asset_status_id = $asset_status_id;
$assetsAssignationsTable->save($assetsAssignation);
}
}

Answer 2

Thanks to Greg, this code worked for me:
use Cake\ORM\TableRegistry;
...
if($this->request->is(['patch', 'post', 'put']))
{
$ids = $this->request->data('data.AssetsAssignations.id');
$asset_status_id = $this->request->data('asset_status_id');
$assetsAssignationsTable = TableRegistry::get('AssetsAssignations');
foreach($ids as $id) {
$assetsAssignation = $assetsAssignationsTable->get($id); // Return assetsAssignation with id
$assetsAssignation->asset_status_id = $asset_status_id;
$assetsAssignationsTable->save($assetsAssignation);
}
}