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

if we speak of SQLAlchemy core, there is another way:

from sqlalchemy import and_


filters = [table.c.col1 == filter1, table.c.col2 > filter2]
query = table.select().where(and_(*filters))

If you're trying to filter based on incoming form criteria:

form = request.form.to_dict()
filters = []
for col in form:
    sqlalchemybinaryexpression = (getattr(MODEL, col) == form[col])
    filters.append(sqlalchemybinaryexpression)
query = table.select().where(and_(*filters))

Where MODEL is your SQLAlchemy Model