Monday, May 28, 2018

Re: money field question

On 24/05/2018 12:03 PM, Mike Dewhirst wrote:
> On 23/05/2018 12:31 PM, Simon McConnell wrote:
>> I'm in a similar boat at the moment. There
>> is https://github.com/vimeo/py-money too.
>
> I looked at that but it probably won't ever support exchange rates.
> Not sure yet if that is a show stopper because maybe forex is a
> separate thing anyway. I do need exchange rates in another project and
> I'd like choose a MoneyField which works in all projects.

On reflection I don't think exchange rates are any sort of show-stopper.
I either agree on an exchange rate with the client ahead of time and do
a forex deal without a rate (and wear the loss or gain when actually
exchanged) or bill in AUD and expect AUD to be remitted. I don't think I
want the complication of the MoneyField doing what someone else thinks
should happen.


>
>> Note that django-money uses py-moneyed which does not yet use Babel,
>> so rendering of the correct symbol is limited to a few hardcoded
>> currencies.

But py-moneyed does claim a complete dictionary of ISO 4217 currencies.

It also supports Python 2.7 which is useful for me because I haven't yet
rebuilt apache/mod_wsgi for py3 on my Ubuntu VMs. I wish there was a
pill to cure procrastination.

poswald/python-money does the same and looks interesting. Might go there
and see how it works. It also has form and field helpers.

Mike


>
> Interesting. I don't use Babel yet. But it is on the horizon.
>
> I'm beginning to see why Django doesn't (yet?) have a built-in
> MoneyField and I'm still interested in experience with differences
> between them.
>
> Mike
>
>>
>>
>> https://github.com/python-babel/babel
>>
>>
>> On Tuesday, 22 May 2018 11:25:04 UTC+10, Mike Dewhirst wrote:
>>
>>     I have just read ...
>>
>>     * Martin Fowler's Money base pattern (P488 to 495)
>>     https://martinfowler.com/eaaCatalog/money.html
>>     <https://martinfowler.com/eaaCatalog/money.html>
>>     * https://github.com/poswald/python-money
>>     <https://github.com/poswald/python-money>
>>     * https://github.com/django-money/django-money
>>     <https://github.com/django-money/django-money>
>>     * https://github.com/limist/py-moneyed
>>     <https://github.com/limist/py-moneyed>
>>
>>     ... and I am spoiled for choice. I was going to just use a
>>     DecimalField
>>     and CharField for currency and do my own thing when I decided to
>> pull
>>     Martin Fowler off my shelf and saw how careful I was going to need
>>     to be.
>>
>>     My question: Is Django planning to adopt one or other of the above
>>     implementations?
>>
>>     I'm just trying to short-circuit more detailed analysis of these
>>     packages and perhaps others I haven't yet found. If one is on the
>>     horizon for Django I'll just go with that.
>>
>>     Thanks
>>
>>     Mike
>>
>>
>>
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