Re: [Haskell-cafe] ORM for haskell?

30 Jun 2009

      Hi Marc Weber
...
Another example: Updating the age of a pupil:
row = SELECT * FROM pupils where age = 13;
  UPDATE pupils SET age = 14 WHERE id = <the id you got above>
p = session.query(Pupil).filter(Pupil.age==13).one().age=14
  session.commit()
difference?
  You don't have to care about ids. you just assign a new value and
tell
  the engine that it should commit.
  So again less chances to get something wrong.
Could you not do in SQL:

UPDATE pupils SET age = 14 WHERE age = 13

That is, without using ids.

Greetings,

Mads Lindstrøm