| From: | Daniele Varrazzo <daniele(dot)varrazzo(at)gmail(dot)com> |
|---|---|
| To: | Jonathan Rogers <jrogers(at)socialserve(dot)com> |
| Cc: | "psycopg(at)postgresql(dot)org" <psycopg(at)postgresql(dot)org> |
| Subject: | Re: ISQLQuote vs. str subclass |
| Date: | 2015-07-31 16:08:56 |
| Message-ID: | CA+mi_8Y0ZgDAZR--uicRE_KukVJe+kCCnG3fNUb8rJdmtziUKA@mail.gmail.com |
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| Lists: | psycopg |
On Fri, Jul 31, 2015 at 3:57 PM, Jonathan Rogers
<jrogers(at)socialserve(dot)com> wrote:
> I have a custom subclass of str called LiteralValue, the purpose of
> which is to represent a string which should be passed to Postgres
> unmodified. Its getquoted() method simply returns itself. This type
> worked as intended with psycopg2 up to version 2.2.x. However, versions
> of psycopg2 2.3 and newer no longer call getquoted() on objects of type
> LiteralValue. Is this an expected change in behavior?
I don't think so, not intentionally at least. If the class is
self-adapting, does it expose a __conform__() method? If it has an
associated wrapper is it registered?
http://initd.org/psycopg/docs/advanced.html#adapting-new-python-types-to-sql-syntax
If you post the implementation I can try and take a look.
-- Daniele
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