Symfony 2 Doctrine ODM returning errors on existing fields - mongodb

Question

I have a simple symfony 2 setup with Doctrine ORM and a db with some underscore seperated field names (for instance "error_page"). Querying this never gives a result (getTitle does give a result, getErrorPage is always empty) and symfony gives me an error:
Method "error_page" for object "My\CmsBundle\Document\Website" does not exist in MyCmsBundle:Default:dashboard.html.twig at line 5
I can't figure out why... My Document looks like this:
<?php
// src/My/CmsBundle/Document/Website.php
namespace My\CmsBundle\Document;
use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
/**
* #MongoDB\Document(
* collection="websites"
* )
*/
class Website
{
/**
* #MongoDB\Id
*/
protected $id;
/**
* #MongoDB\String
*/
protected $slug;
/**
* #MongoDB\Field(type="string", name="error_page")
*/
protected $error_page = "";
/**
* #MongoDB\String
*/
protected $title;
/**
* #MongoDB\String(name="seo_title")
*/
protected $seo_title;
/**
* #MongoDB\String
*/
protected $seo_description;
/**
* #MongoDB\Collection
*/
protected $url = array();
/**
* Get id
*
* #return id $id
*/
public function getId()
{
return $this->id;
}
/**
* Set slug
*
* #param string $slug
* #return self
*/
public function setSlug($slug)
{
$this->slug = $slug;
return $this;
}
/**
* Get slug
*
* #return string $slug
*/
public function getSlug()
{
return $this->slug;
}
/**
* Set title
*
* #param string $title
* #return self
*/
public function setTitle($title)
{
$this->title = $title;
return $this;
}
/**
* Get title
*
* #return string $title
*/
public function getTitle()
{
return $this->title;
}
/**
* Set errorPage
*
* #param string $errorPage
* #return self
*/
public function setErrorPage($errorPage)
{
$this->error_page = $errorPage;
return $this;
}
/**
* Get errorPage
*
* #return string $errorPage
*/
public function getErrorPage()
{
return $this->error_page;
}
/**
* Set url
*
* #param collection $url
* #return self
*/
public function setUrl($url)
{
$this->url = $url;
return $this;
}
/**
* Get url
*
* #return collection $url
*/
public function getUrl()
{
return $this->url;
}
/**
* Set seoTitle
*
* #param string $seoTitle
* #return self
*/
public function setSeoTitle($seoTitle)
{
$this->seo_title = $seoTitle;
return $this;
}
/**
* Get seoTitle
*
* #return string $seoTitle
*/
public function getSeoTitle()
{
return $this->seo_title;
}
/**
* Set seoDescription
*
* #param string $seoDescription
* #return self
*/
public function setSeoDescription($seoDescription)
{
$this->seo_description = $seoDescription;
return $this;
}
/**
* Get seoDescription
*
* #return string $seoDescription
*/
public function getSeoDescription()
{
return $this->seo_description;
}
}
Document creation via this document works fine by the way. The field name is also set to error_page as expected... I'm at a loss here :S

Answer 1

Actually, Doctrine+Symfony2 assume camel case variable naming. Twig using the getter method names should be obvious, how should it access protected/private variables? It needs a name for something public : the getter. You're probably wondering why "get" is ignored; it is a simplification for designers as they normally shouldnt know about what "getters" are and the difference between methods and variables.
so in your twig file ,change :
{{document.error_page}}
to
{{document.errorPage}}
this would helpful.