<?php

//You could get the latest record by using findBy() with order by, limit and offset parameters

​

$results = $repository->findBy(array(),array('id'=>'DESC'),1,0);

/*

 First argument is for filter criteria

 Second argument takes order by criteria

 Third argument is for limit

 Fourth argument sets offset

 Note it will return you the results set as array of objects so you can get single object from result as $results[0]

*/

use Doctrine\DBAL\Connection;

​

// Inject Connection in your service or controller

public function someMethod(Connection $connection)

{

    $yourEntity = new YourEntity();

    // Set properties of your entity

​

    $connection->insert('your_entity_table', [

        // Associative array of data to be inserted

    ]);

​

    // Get the last insert ID

    $lastInsertId = $connection->lastInsertId();

}