PHP code example of silverstripe / versioned-snapshots

1. Go to this page and download the library: Download silverstripe/versioned-snapshots library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

silverstripe / versioned-snapshots example snippets


use SilverStripe\Snapshots\Handler\Form\SaveHandler;
use SilverStripe\EventDispatcher\Event\EventContextInterface;
use SilverStripe\Snapshots\Snapshot;

class MySaveHandler extends SaveHandler
{
    protected function createSnapshot(EventContextInterface $context): ?Snapshot
    {
        //...
    }
}


use SilverStripe\Snapshots\Dispatch\DispatcherLoaderInterface;
use SilverStripe\Snapshots\Dispatch\Dispatcher;
use SilverStripe\Snapshots\Handler\Form\SaveHandler;

class MyEventLoader implements DispatcherLoaderInterface
{
    public function addToDispatcher(Dispatcher $dispatcher): void
    {
        $dispatcher->removeListenerByClassName('formSubmitted.save', SaveHandler::class);
    }
}


Snapshot::singleton()->createSnapshot(DataObject $origin, array $extraObjects = []);


Snapshot::singleton()->createSnapshotFromEvent('Description of event');


class Product extends DataObject
{
    private static $many_many = [
        'Categories' => Category::class,
    ];

    private static $snapshot_relation_tracking = ['Categories'];

}