<?php
use Doctrine\Common\Collections\ArrayCollection;

/**
* @Entity @Table(name="User")
*/
class User
{
    /**
    * @Id @Column(type="integer") @GeneratedValue
    * @var integer
    */
    private $id;
    /**
    * @Column()
    * @var string
    */
    private $username;
    /**
    * @Column()
    * @var string
    */
    private $password;
    /**
    * @Column()
    * @var string
    */
    private $email;

    /**
    * @Column()
    * @var string
    */
    private $verificationcode;
    /**
    * @Column(length="2")
    * @var integer
    */
    private $status; // logged in? Banned?
    /**
    * @Column()
    * @var string
    */
    private $ip;

    /**
    * NOT-OWNING SIDE
    * @OneToMany(targetEntity="Transaction", mappedBy="user", cascade={"persist"})
    * @var array List of transactions
    */
    private $transactions;

    /****************************************************************************/

    public function __construct() {
        $this->transactions = new \Doctrine\Common\Collections\ArrayCollection;
    }

    public function getId() { return $this->id; }

    public function getUsername() { return $this->username; }
    public function setUsername($username) { $this->username = $username; }

    public function getPassword() { return $this->password; }
    public function setPassword($password) { $this->password = $password; }

    public function getEmail() { return $this->email; }
    public function setEmail($email) { $this->email = $email; }

    public function getVerificationcode() { return $this->verificationcode; }
    public function setVerificationcode($verificationcode) { $this->verificationcode = $verificationcode; }

    public function getStatus() { return $this->status; }
    public function setStatus($status) { $this->status = $status; }

    public function getIp() { return $this->ip; }
    public function setIp($ip) { $this->ip = $ip; }

    public function addTransaction(Transaction $transaction) {
        $transaction->setUser($this->getId());
        $this->transactions[] = $transaction;
    }
    public function getTransactions() { return $this->transactions; }
    public function getTransaction($index) { return $this->transactions[$index]; }

}


/**
* @Entity @Table(name="Transaction")
*/
class Transaction
{
    /**
    * @ID @Column(type = "integer") @GeneratedValue
    *
    * @var integer
    */
    private $id;

    /**
    * OWNING SIDE because it's the Many part
    * @ManyToOne(targetEntity="User", inversedBy="transactions")
    *
    * @var integer
    */
    private $user;

    /**
    * @Column
    *
    * @var string
    */
    private $message;

    /***************************************************************/

    public function getMessage() { return $this->message; }
    public function setMessage($message) { $this->message = $message; }

    public function setUser($user) { $this->user = $user; }

}


// calling code:
        $oUser = $em->find('User', 1);

        $oTransaction = new Transaction();
        $oTransaction->setMessage('Test ' . date("H:i:s"));

        $oUser->addTransaction($oTransaction);

        $em->persist($oUser);
        $em->flush();