A reusable Django application to control the currency rate and favorite language code, inspired by etsy
A reusable Django application to control the currency rate and favorite language code, inspired by etsy.
First you need to request an app id at open exchange rates to import currency rates.
To install it, simply
pip install django-metasettings
Add ‘metasettings’ to your INSTALLED_APPS
INSTALLED_APPS = ( 'metasettings', )
If you want to install the dashboard to allow your users to select a language and a currency you will have to install urls from metasettings like so
# urls.py from django.conf.urls import patterns, include urlpatterns = patterns( '', (r'^', include('metasettings.urls')) )
You can add your proper stylesheet to this dashboard view and have this kind of result:
To import current currency rates, run
$ python manage.py sync_rates --app_id=openexchangesratesappid
To import currency rates in a date range, run
$ python manage.py sync_rates --app_id=openexchangesratesappid --date_start=2011-10-01 --date_end=2013-10-01
It will import for each months between the two dates the currency rates.
The OpenExchangeRates app id can also be stored in the OPENEXCHANGERATES_APP_ID Django setting.
If you can to convert an amount from on currency to another:
from metasettings.models import convert_amount convert_amount('EUR', 'USD', 15) # ~20 euros
By default it will return a full decimal, if you want a converted integer:
from metasettings.models import convert_amount convert_amount('EUR', 'USD', 15, ceil=True) # ~20 euros
To retrieve the currency with a client IP Address:
from metasettings.models import get_currency_from_ip_address get_currency_from_ip_address('184.108.40.206') # EUR
We are using GeoIP which gives you the ability to retrieve the country and then we are linking the country to an existing currency.
So don’t forget to import a fresh GeoIP database and be sure to have GEOIP_PATH in your settings.
We recommend to use django-geoip-utils which provides some helpers to manipulate GeoIP API.
A currency field for Django models that provides all ISO 4217 currencies as choices.
CurrencyField is based on Django’s CharField, providing choices corresponding to the official ISO 4217 list of currencies (with a default max_length of 3).
Consider the following model using a CurrencyField:
from django.db import models from metasettings.fields import CurrencyField class Project(models.Model): name = models.CharField(max_length=100) currency = CurrencyField()
Any Project instance will have a currency attribute that you can use to get details of the project’s currency:
>>> project = Project(name='My project', currency='EUR') >>> project.currency Currency(code='EUR') >>> project.currency.label 'Euro' >>> project.currency.symbol '€' >>> project = Project(name='My project', currency='USD') >>> project.currency Currency(code='USD') >>> project.currency.label 'United States Dollar' >>> project.currency.symbol '$' >>> project.currency.trigram 'USD'
This object (project.currency in the example) is a Currency instance, which is described below.
Use blank_label to set the label for the initial blank choice shown in forms:
currency = CurrencyField(blank_label='(select currency)')
This application only includes major currencies, don’t hesitate to send patch or improvements.
The CurrencyField is heavily inspired from CountryField of the great django-countries
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