Doctrine2 - Single Table Inheritance

Question

I'm trying to apply this tutorial to my project, but I don't get it working. Everytime I try to update my schema i get an error: Fatal error: Cannot redeclare class Rueckgrat\App\Models\ProjectSetting in.....

I have 2 files. The first one is ProjectSetting.php

namespace Rueckgrat\App\Models;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping AS ORM;

/**
 * @ORM\Entity()
 * @ORM\Table(name="project_setting")
 * @ORM\HasLifecycleCallbacks()
 * @ORM\InheritanceType("SINGLE_TABLE")
 * @ORM\DiscriminatorColumn(name="is_production", type="integer")
 * @ORM\DiscriminatorMap({"0" = "ProjectCalculation", "1" = "ProjectSetting"})
 */
class ProjectSetting
{
// More code here
}

The second one is ProjectCalculation.php

namespace Rueckgrat\App\Models;
use Doctrine\ORM\Mapping AS ORM;
/**
 * @ORM\Entity
 */
class ProjectCalculation extends \Rueckgrat\App\Models\ProjectSetting
{      
....
}

Any help or hint appreciated.

Update:

Full error message: Fatal error: Cannot redeclare class Rueckgrat\App\Models\ProjectSetting in /Applications/MAMP/htdocs/Rueckgrat/app/models/ProjectSetting.php on line 17

I just tried the example from the Doctrine documentation, just splited in two entity files and it is not working. Then i copied the ProjectCalculation class in the file of ProjectSetting and it is working.

Update 2:

I can't update my Schema, but it is saving the correct discriminator to the project_setting table, when i save an ProjectCalculation Entity.

Answer 1

This can be the problem with PHP accelerator on your machine. Please turn off APC or XCache (whatever you have there), restart PHP/Apache and try again.