Hi all,
having a x IN y query, with y supplied as input to the query:
session.query(C).filter(C.someattr.in_(valuelist))
is there a way to tell SQLAlchemy to order the results according to
valuelist? I.e. not by the natural order of someattr, but by the
arbitrary order seen in valuelist? E.g.:
session.add(C(someattr='Abigail'))
session.add(C(someattr='Benjamin'))
session.add(C(someattr='Carl'))
valuelist = ['Benjamin', 'Abigail']
q = session.query(C).filter(C.someattr.in_(valuelist)).order_by(clever
(valuelist))
q.all()
# returns [C('Benjamin'), C('Abigail')]
The solution I can think of is to create a temporary table with
sess.execute('create temp table ...'), insert the valuelist into that
temp table along with a sequence index, join to that temporary table
and order by its index. Is there a less kludgy way?
Regards,
- Gulli
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