Defining Discriminator Maps at Child-level in Doctrine 2Doctrine ORM is a very powerful object-relation mapper for PHP 5.3.0+ which provides us with several powerful features. One of these features is the ability to define mappings using annotations in your model classes. When using inheritance, there are two types, Single Table Inheritance and Class Table Inheritance, for which you need to help Doctrine a little bit by defining the possible subclasses
