I have a function with name is_id_valid(id) which returns either True or
False.
I want to pass this function inside a sqlalchemy query inside the filter
condition.
My query example is :
a = session.query(GeneralBeqReq).filter(GeneralBeqReq.c.BeqReqStatus == 1,
is_id_valid
they're created as the result object is iterated, which is up to how the end
user handles the result.
there's a not-yet documented execution option you can use to prebuffer the rows:
orm_execute_state.update_execution_options(prebuffer_rows=True)
result =
That callback look like it happening before orm instances are created. I am
looking for a
callback that is after all the instances are created. I am using the events to
get a list of instances
that need work done when they are loaded from the database.
I need the instance data and relationship
the event that corresponds most directly here is the do_orm_execute() event:
https://docs.sqlalchemy.org/en/14/orm/session_events.html#session-execute-events
you would want to use the "re-execute statement" feature described at:
Hi all
I've updated an old sql alchemy powered application and I'm struggling with
a relationship issue.
Having this code:
class Member(object):
_data_provider = inject.attr(DataProvider)
def __init__(self, id_member=None, name=None):
self.id_member = id_member
self.name = name
I am moving from version 1.0.14 to version 1.4.11 of sqlalchemy.
I need to get a callback when all of the data from orm query is loaded not just
single instance.
In the 1.0 version I created the session using query_cls:
self.session = Session(bind=engine, autoflush=False,
