openerp-expert-framework team mailing list archive

[Georges Racinet <gracinet@xxxxxxxxx>]

On 08/16/2013 11:14 AM, Joël Grand-Guillaume wrote:
> No hints on it, but I'm clearly in favor of implementing a "true"
> field.decimal in the core, thanks for the initiative !

(back from a week-long leave, and could not find time to send this for
another week)

Thanks for the support, Joël !

I'm not sure what you mean with "true" in that context.

At this point, I do have a working implementation of a 'fields.decimal',
with web counterpart. The core field itself is trivial, as you may
expect. For now, it's at
https://bitbucket.org/anybox/anybox.openerp.fields, if you're curious.
This is a Python distribution (with setup.py etc). I'm considering
repackaging as an addon, but I should check various upgrade scenarios
first to be sure that a before-hand import is not needed.

One thing that should be underlined is that the standard OpenObject
server has some form of support for the ``numeric`` PostgreSQL columns
and even creates some, but makes Psycopg2 cast everything into float.
Changing that behaviour will affect the server globally, even if the
decimal field is imported just once.
Currently, in "base" addons, only ``res.currency`` would be impacted by
the change.

JSON and XML RPCs are supported by serialization as strings. This is
good enough for basic user interaction.

The web field is not pushed yet and needs proper packaging as an addon.
For current intents and purposes, it's not much more than FieldChar.
Of course it'll need proper l10n rules, so that 10^5 gets displayed and
input as 100,000.00 for US people and as 100.000,00 for French people.
I'm willing to hardcode the latter in a first run, because that's what I
need immediately.

Regards,


>
>
> On Mon, Aug 5, 2013 at 12:34 PM, ferdinand <office@xxxxxxxxxx
> <mailto:office@xxxxxxxxxx>> wrote:
>
>     On 08/05/2013 12:32 PM, Georges Racinet wrote:
>
>     +1
>>     Hi,
>>
>>     We're working on a 7.0 project where we will need to have true decimal
>>     field ie, ``numeric`` on PostgreSQL side, ``decimal.Decimal`` in Python
>>     code.
>>
>>     It seems to me that addind a true fields.decimal class would be rather
>>     easy, so I wonder if there are any known, solid, public implementations
>>     before starting rolling out my own.
>>
>>     I know this has been a controversial question for years, but that is
>>     none of our concern, except that it makes searching the web on that
>>     subject somewhat harder.
>>     To state things clearly, I'm not speaking of converting the mainline
>>     addons to true decimal at all. That'd be a much different question.
>>
>>     Of course, any implementation we may come with will be public and fully
>>     unit tested.
>>
>>     We need to have it, and migrate our own code to use it, by the end of
>>     the week.
>>
>>     Thanks for any hint or comment.
>>
>>     Regards,
>>
>>
>>
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> -- 
>
>
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Georges Racinet
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