Single Table Inheritance with indirect discriminator column (based on database view)

[furtivesock]

Hello,

I want to perform single class inheritance, but the discriminator column can not be accessed directly :

A has a column b_id which refer to id of Table B.
B has a column type that I would use as a discriminator column.
So we've made a SQL view based on A with B.type column (renamed type) in it and we have an entity A based on it.

The problem is, insertion works fine as long as columns refer to one table only. But type column is also added in the generated query, which causes error.

For now, by applying a patch on doctrine/orm package, I've added an insertable option to DiscriminatorColumn annotation (similar to insertable for Column annotation). It works well but it's maybe overkill to do so.

Altering table to add a type column cannot be an option, so do you have any solution for my case?

Thank you in advance!