How to create a Entity class extends a exist Entity class?

I was update some column to orocrm_magento_customer table by migrations. It’s worked fine!
Now I want use some field in this table, I create a entity class in my bundle and extends Customer class (OroCRM\Bundle\MagentoBundle\Entity\Customer).
But when I no use any annotation, this error is occurred:

orocrm Class "my/entity/class" sub class of "OroCRM\Bundle\MagentoBundle\Entity\Customer" is not a valid entity or mapped super class.

1	orocrm Class "my/entity/class" sub class of "OroCRM\Bundle\MagentoBundle\Entity\Customer" is not a valid entity or mapped super class.

When I add annotation @ORM\Table and @ORM\Entity, that error is not occurred, but all column I create in orocrm_magento_customer table were deleted. And it’s create new table, when I add field name=”orocrm_magento_customer” to @ORM\Table then it’s occurred error: Table already exist
Someone can help?

Topic

[Mike KudelyaParticipant]

Hi,

Maybe you can help single table inheritance. Also you can add fields dynamically via migrations.

[abelParticipant]

Thanks Mike!
It’s very helpful!

[Author]

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