On 7/8/15 12:15 AM, Pedro Werneck wrote:
Let's say I have a table 'user', and for backwards compatibility
reasons I have a single-column table named 'user_active' which is
basically just a foreign key used as a boolean flag. I need my User
model to have the 'active' field as a boolean
Hi all,
I have the following union query:
q1 = db.session.query(label('sid',distinct(left.c.patient_sid)))
q2 = db.session.query(label('sid',distinct(right.c.patient_sid)))
query = q1.union_all(q2)
Which works just fine.
And I have the following query to which I would like to join this:
I tried this code.
There are two objects in it.
The second is just a new created one to check if everything goes right.
It appears in the sqlite database.
The first object is from the old PostgreSQL database. But it doesn't
appear in the new sqlite database. There even is no error output and
now
you probably need to modify the various objections with a `.select()` or
`.subquery()`
e.g:
query_select = query.select()
q = intersect.join(query_select, query_select.c.sid, intersect.c.sid)
pay attention to the docs on what the various methods return. some return
a selectable, others
For the record, this should have a '==' for the join condition: q =
intersect.join(query_select, query_select.c.sid == intersect.c.sid)
On Wednesday, July 8, 2015 at 7:48:54 PM UTC-5, Horcle wrote:
Weird, I had tried using the subquery() method earlier, but it didn't
work. Not sure why, but
Forget the old code. I needed to use make_transient()
This example code work nearly fine (FOREIGN KEY constraints not used in
sqlite)
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sqlalchemy as sa
import sqlalchemy.ext.declarative as sad
import sqlalchemy.orm as sao
import
Weird, I had tried using the subquery() method earlier, but it didn't work.
Not sure why, but now it is returning the desired query object. (I guess
stepping away from this for a few hours was a good idea, eh?!)
Thanks!
Greg--
On Wednesday, July 8, 2015 at 6:24:16 PM UTC-5, Jonathan Vanasco
I've been trying to get SQLAlchemy to work with Postgres composite types
for the last couple days with no luck. I've implemented the PGCompositeType
that Michael created in another post
