SQLAlchemy - “Dynamic Filter”

Question

I have just started using SQLAlchemy. I decided to use it because I was using a lot of string expression in the middle of my sqlite queries.

So, that is my problem.

Answer 1

I assume you are using the ORM.

in that case, the filter function returns a query object. You can conditionaly build the query by doing something like

query = Session.query(schema.Object).filter_by(attribute=value)
if condition:
    query = query.filter_by(condition_attr=condition_val)
if another_condition:
    query = query.filter_by(another=another_val)

#then finally execute it

results = query.all()