oneToOne issue with Doctrine - doctrine

Question

I have 2 tables and I am trying to create a OneToOne assocation with doctrine using the zend framework, my error is as follows, table structure and entity code including controller code can be found below, any idea why I am getting this error?
Fatal error: Call to undefined method Closure::getDate() in C:\htdocs\ea2\module\Easchnitstelle\view\easchnitstelle\transactions\index.phtml on line 132
Table Structure
CREATE TABLE `transaction` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`file_id` int(10) unsigned NOT NULL,
`meta_data_id` int(10) unsigned NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10386 DEFAULT CHARSET=utf8$$
CREATE TABLE `transaction_meta_data` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`meta_data_sender_id` int(10) unsigned NOT NULL,
`sender_account` float NOT NULL,
`sum_amounts` float NOT NULL,
`count` smallint(5) unsigned NOT NULL,
`date` date DEFAULT NULL,
`sum_bankcodes` float NOT NULL,
`sum_accounts` float NOT NULL,
`type` tinyint(3) unsigned NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10386 DEFAULT CHARSET=utf8$$
Here are my two entities:
namespace Easchnitstelle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Entity Class representing a Post of our Zend Framework 2 Blogging Application
*
* #ORM\Entity
* #ORM\Table(name="transaction")
* #property int $id
* #property string $file_id
* #property string $meta_data_id
*/
class Transaction
{
/**
* #ORM\Id #ORM\Column(type="integer")
* #ORM\GeneratedValue
*/
protected $id;
/** #ORM\Column(type="integer") */
protected $file_id;
/** #ORM\Column(type="integer") */
protected $meta_data_id;
/**
* #ORM\OneToMany(targetEntity="TransactionData", mappedBy="transaction")
* #ORM\JoinColumn(name="transaction_id", referencedColumnName="id")
**/
private $TransactionData;
/**
* #ORM\OneToOne(targetEntity="TransactionMetaData", mappedBy="transaction")
* #ORM\JoinColumn(name="meta_data_id", referencedColumnName="id")
**/
private $TransactionMetaData;
public function __construct() {
$this->TransactionData = new ArrayCollection();
$this->TransactionMetaData = new ArrayCollection();
}
public function getTransactionData() {
return $this->TransactionData;
}
public function setTransactionData($TransactionData){
$this->TransactionData = $TransactionData;
return $this;
}
public function getTransactionMetaData() {
return $this->TransactionMetaData;
}
public function setTransactionMetaData($TransactionMetaData){
$this->TransactionMetaData = $TransactionMetaData;
return $this;
}
public function setId($id){
$this->id = $id;
return $this;
}
public function getId(){
return $this->id;
}
public function setFileId($file_id){
$this->file_id = $file_id;
return $this;
}
public function getFileId(){
return $this->file_id;
}
public function setMetaDataId($meta_data_id){
$this->meta_data_id = $meta_data_id;
return $this;
}
public function getMetaDataId(){
return $this->meta_data_id;
}
}
And:
<?php
namespace Easchnitstelle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* This class is somewhere in your library
* #ORM\Entity
* #ORM\Table(name="transaction_meta_data")
*/
class TransactionMetaData {
/**
* #ORM\Id #ORM\Column(type="integer")
* #ORM\GeneratedValue
*/
protected $id;
/** #ORM\Column(type="integer") */
protected $meta_data_sender_id;
/** #ORM\Column(type="float") */
protected $sum_amounts;
/** #ORM\Column(type="float") */
protected $count;
/** #ORM\Column(type="date") */
protected $date;
/** #ORM\Column(type="float") */
protected $sum_bankcodes;
/** #ORM\Column(type="float") */
protected $sum_accounts;
/** #ORM\Column(type="integer") */
protected $type;
/**
* #ORM\OneToOne(targetEntity="Transaction", mappedBy="TransactionMetaData")
* #ORM\JoinColumn(name="meta_data_id", referencedColumnName="id")
**/
protected $transaction;
public function setId($id){
$this->id = $id;
return $this;
}
public function getId(){
return $this->id;
}
public function getSumAmounts() {
return $this->sum_amounts;
}
public function setSumAmounts($sum_amounts) {
$this->sum_amounts = $sum_amounts;
}
public function getCount() {
return $this->count;
}
public function setCount($count) {
$this->count = $count;
}
public function getDate() {
return $this->date;
}
public function setDate($date) {
$this->date = $date;
}
public function getSumBankcodes() {
return $this->sum_bankcodes;
}
public function setSumBankcodes($sum_bankcodes) {
$this->sum_bankcodes = $sum_bankcodes;
}
public function getSumAccounts() {
return $this->sum_accounts;
}
public function setSumAccounts($sum_accounts) {
$this->sum_accounts = $sum_accounts;
}
public function getType() {
return $this->type;
}
public function setType($type) {
$this->type = $type;
}
}
Below is the code in my view:
foreach($Transactions as $t){
$amount = '';
foreach($t->getTransactionData() as $t_data){
//echo $amount = $t_data->getPurposes();
}
//die;
//echo get_class($t->getTransactionData());
//$tm_data = $t->getTransactionMetaData();
foreach($t->getTransactionMetaData() as $tm_data){
//echo get_class($t->getTransactionMetaData());
$date = $tm_data->getDate();
echo $date;
die;
}
$data[] = array($amount);
}

Answer 1

The relation is a 1:1, not a 1:n. Why do you use the foreach keyword?
As I see your code, it should simply look like this:
foreach($Transactions as $transaction) {
$metadata = $transaction->getTransactionMetaData();
echo $metadata->getDate();
}
There is no foreach required with getTransactionMetaData()