Sqlalchemy ORM 过滤器无和假

Question

i try to filter my entity by column named valid and for this i apply simple filter below

session.query(Mymodel).filter(Mymodel.valid !=True)

The problem is that i have None, False, and True statement for valid field.

How can i do correct filter to return False and None also?

Answer 1

I figured out.

SQLAlchemy has their own magic method to compose SQL statement and it can operate with == or !=

And to get None with False need to do

session.query(or_(Mymodel.valid == False, Mymodel.valid == None)