Sylius/Sylius-Docs — pull request #153 by jbbrunsveld (2014-05-22 08:37:31+00:00)
Title: Update installation.rst

Base mapping file Order.orm.xml has a mapped-superclass. Fields cannot be override this way and gives a message like: Duplicate definition of column 'id' on entity in a field or discriminator column mapping. I should place a pointer to the doctrine documentation: http://doctrine-orm.readthedocs.org/en/latest/reference/inheritance-mapping.html#attribute-override