Map a discriminator column to a field with Doctrine 2

Question

In my project I have several class table inheritances like this:

namespace MyProject\\Model;

/**
 * @Entity
 * @InheritanceType(\"JOINED\")
 * @Discriminat         


        

Answer 1

Just got this problem and solved it without defining the discriminator as a real member:

abstract class MyEntity {
    const TYPE_FOO = 'foo';
    const TYPE_BAR = 'bar';
    const TYPE_BUZ = 'buz';
    ...
    /**
     * @return string
     */
    public function getMyDiscriminator()
    {
        $myDiscriminator = null;
        switch (get_class($this)) {
            case MyEntityFoo::class:
                $myDiscriminator = self::TYPE_FOO;
                break;
            case MyEntityBar::class:
                $myDiscriminator = self::TYPE_BAR;
                break;
            case MyEntityBuz::class:
                $myDiscriminator = self::TYPE_BUZ;
                break;
        }
        return $myDiscriminator;
    }
    ...
}

class MyEntityFoo extends MyEntity {}

class MyEntityBar extends MyEntity {}

class MyEntityBuz extends MyEntity {}