Metadata-Version: 2.1
Name: django-money
Version: 1.2.2
Summary: Adds support for using money and currency fields in django models and forms. Uses py-moneyed as the money implementation.
Home-page: https://github.com/django-money/django-money
Maintainer: Greg Reinbach
Maintainer-email: greg@reinbach.com
License: BSD
Description: django-money
        ============
        
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        A little Django app that uses ``py-moneyed`` to add support for Money
        fields in your models and forms.
        
        * Django versions supported: 1.11, 2.1, 2.2, 3.0, 3.1
        * Python versions supported: 3.5, 3.6, 3.7, 3.8, 3.9
        * PyPy versions supported: PyPy3
        
        If you need support for older versions of Django and Python, please refer to older releases mentioned in `the release notes <https://django-money.readthedocs.io/en/latest/changes.html>`__.
        
        Through the dependency ``py-moneyed``, ``django-money`` gets:
        
        * Support for proper Money value handling (using the standard Money
          design pattern)
        * A currency class and definitions for all currencies in circulation
        * Formatting of most currencies with correct currency sign
        
        Installation
        ------------
        
        Using `pip`:
        
        .. code:: bash
        
           $ pip install django-money
        
        This automatically installs ``py-moneyed`` v0.8 (or later).
        
        Add ``djmoney`` to your ``INSTALLED_APPS``. This is required so that money field are displayed correctly in the admin.
        
        .. code:: python
        
           INSTALLED_APPS = [
              ...,
              'djmoney',
              ...
           ]
        
        Model usage
        -----------
        
        Use as normal model fields:
        
        .. code:: python
        
                from djmoney.models.fields import MoneyField
                from django.db import models
        
        
                class BankAccount(models.Model):
                    balance = MoneyField(max_digits=14, decimal_places=2, default_currency='USD')
        
        To comply with certain strict accounting or financial regulations, you may consider using ``max_digits=19`` and ``decimal_places=4``, see more in this `StackOverflow answer <https://stackoverflow.com/a/224866/405682>`__
        
        It is also possible to have a nullable ``MoneyField``:
        
        .. code:: python
        
                class BankAccount(models.Model):
                    money = MoneyField(max_digits=10, decimal_places=2, null=True, default_currency=None)
        
                account = BankAccount.objects.create()
                assert account.money is None
                assert account.money_currency is None
        
        Searching for models with money fields:
        
        .. code:: python
        
                from djmoney.money import Money
        
        
                account = BankAccount.objects.create(balance=Money(10, 'USD'))
                swissAccount = BankAccount.objects.create(balance=Money(10, 'CHF'))
        
                BankAccount.objects.filter(balance__gt=Money(1, 'USD'))
                # Returns the "account" object
        
        
        Field validation
        ----------------
        
        There are 3 different possibilities for field validation:
        
        * by numeric part of money despite on currency;
        * by single money amount;
        * by multiple money amounts.
        
        All of them could be used in a combination as is shown below:
        
        .. code:: python
        
                from django.db import models
                from djmoney.models.fields import MoneyField
                from djmoney.money import Money
                from djmoney.models.validators import MaxMoneyValidator, MinMoneyValidator
        
        
                class BankAccount(models.Model):
                    balance = MoneyField(
                        max_digits=10,
                        decimal_places=2,
                        validators=[
                            MinMoneyValidator(10),
                            MaxMoneyValidator(1500),
                            MinMoneyValidator(Money(500, 'NOK')),
                            MaxMoneyValidator(Money(900, 'NOK')),
                            MinMoneyValidator({'EUR': 100, 'USD': 50}),
                            MaxMoneyValidator({'EUR': 1000, 'USD': 500}),
                        ]
                    )
        
        The ``balance`` field from the model above has the following validation:
        
        * All input values should be between 10 and 1500 despite on currency;
        * Norwegian Crowns amount (NOK) should be between 500 and 900;
        * Euros should be between 100 and 1000;
        * US Dollars should be between 50 and 500;
        
        Adding a new Currency
        ---------------------
        
        Currencies are listed on moneyed, and this modules use this to provide a
        choice list on the admin, also for validation.
        
        To add a new currency available on all the project, you can simple add
        this two lines on your ``settings.py`` file
        
        .. code:: python
        
                import moneyed
                from moneyed.localization import _FORMATTER
                from decimal import ROUND_HALF_EVEN
        
        
                BOB = moneyed.add_currency(
                    code='BOB',
                    numeric='068',
                    name='Peso boliviano',
                    countries=('BOLIVIA', )
                )
        
                # Currency Formatter will output 2.000,00 Bs.
                _FORMATTER.add_sign_definition(
                    'default',
                    BOB,
                    prefix=u'Bs. '
                )
        
                _FORMATTER.add_formatting_definition(
                    'es_BO',
                    group_size=3, group_separator=".", decimal_point=",",
                    positive_sign="",  trailing_positive_sign="",
                    negative_sign="-", trailing_negative_sign="",
                    rounding_method=ROUND_HALF_EVEN
                )
        
        To restrict the currencies listed on the project set a ``CURRENCIES``
        variable with a list of Currency codes on ``settings.py``
        
        .. code:: python
        
                CURRENCIES = ('USD', 'BOB')
        
        **The list has to contain valid Currency codes**
        
        Additionally there is an ability to specify currency choices directly:
        
        .. code:: python
        
                CURRENCIES = ('USD', 'EUR')
                CURRENCY_CHOICES = [('USD', 'USD $'), ('EUR', 'EUR €')]
        
        Important note on model managers
        --------------------------------
        
        Django-money leaves you to use any custom model managers you like for
        your models, but it needs to wrap some of the methods to allow searching
        for models with money values.
        
        This is done automatically for the "objects" attribute in any model that
        uses MoneyField. However, if you assign managers to some other
        attribute, you have to wrap your manager manually, like so:
        
        .. code:: python
        
                from djmoney.models.managers import money_manager
        
        
                class BankAccount(models.Model):
                    balance = MoneyField(max_digits=10, decimal_places=2, default_currency='USD')
                    accounts = money_manager(MyCustomManager())
        
        Also, the money\_manager wrapper only wraps the standard QuerySet
        methods. If you define custom QuerySet methods, that do not end up using
        any of the standard ones (like "get", "filter" and so on), then you also
        need to manually decorate those custom methods, like so:
        
        .. code:: python
        
                from djmoney.models.managers import understands_money
        
        
                class MyCustomQuerySet(QuerySet):
        
                   @understands_money
                   def my_custom_method(*args, **kwargs):
                       # Awesome stuff
        
        Format localization
        -------------------
        
        The formatting is turned on if you have set ``USE_L10N = True`` in the
        your settings file.
        
        If formatting is disabled in the configuration, then in the templates
        will be used default formatting.
        
        In the templates you can use a special tag to format the money.
        
        In the file ``settings.py`` add to ``INSTALLED_APPS`` entry from the
        library ``djmoney``:
        
        .. code:: python
        
                INSTALLED_APPS += ('djmoney', )
        
        In the template, add:
        
        ::
        
                {% load djmoney %}
                ...
                {% money_localize money %}
        
        and that is all.
        
        Instructions to the tag ``money_localize``:
        
        ::
        
                    {% money_localize <money_object> [ on(default) | off ] [as var_name] %}
                    {% money_localize <amount> <currency> [ on(default) | off ] [as var_name] %}
        
        Examples:
        
        The same effect:
        
        ::
        
                    {% money_localize money_object %}
                    {% money_localize money_object on %}
        
        Assignment to a variable:
        
        ::
        
                    {% money_localize money_object on as NEW_MONEY_OBJECT %}
        
        Formatting the number with currency:
        
        ::
        
                    {% money_localize '4.5' 'USD' %}
        
        ::
        
            Return::
        
                Money object
        
        
        Testing
        -------
        
        Install the required packages:
        
        ::
        
            git clone https://github.com/django-money/django-money
        
            cd ./django-money/
        
            pip install -e ".[test]" # installation with required packages for testing
        
        Recommended way to run the tests:
        
        .. code:: bash
        
            tox
        
        Testing the application in the current environment python:
        
        .. code:: bash
        
            make test
        
        Working with Exchange Rates
        ---------------------------
        
        To work with exchange rates, add the following to your ``INSTALLED_APPS``.
        
        .. code:: python
        
            INSTALLED_APPS = [
                ...,
                'djmoney.contrib.exchange',
            ]
        
        Also, it is required to have ``certifi`` installed.
        It could be done via installing ``djmoney`` with ``exchange`` extra:
        
        .. code:: bash
        
            pip install "django-money[exchange]"
        
        To create required relations run ``python manage.py migrate``. To fill these relations with data you need to choose a
        data source. Currently, 2 data sources are supported - https://openexchangerates.org/ (default) and https://fixer.io/.
        To choose another data source set ``EXCHANGE_BACKEND`` settings with importable string to the backend you need:
        
        .. code:: python
        
            EXCHANGE_BACKEND = 'djmoney.contrib.exchange.backends.FixerBackend'
        
        If you want to implement your own backend, you need to extend ``djmoney.contrib.exchange.backends.base.BaseExchangeBackend``.
        Two data sources mentioned above are not open, so you have to specify access keys in order to use them:
        
        ``OPEN_EXCHANGE_RATES_APP_ID`` - '<your actual key from openexchangerates.org>'
        
        ``FIXER_ACCESS_KEY`` - '<your actual key from fixer.io>'
        
        Backends return rates for a base currency, by default it is USD, but could be changed via ``BASE_CURRENCY`` setting.
        Open Exchanger Rates & Fixer supports some extra stuff, like historical data or restricting currencies
        in responses to the certain list. In order to use these features you could change default URLs for these backends:
        
        .. code:: python
        
            OPEN_EXCHANGE_RATES_URL = 'https://openexchangerates.org/api/historical/2017-01-01.json?symbols=EUR,NOK,SEK,CZK'
            FIXER_URL = 'http://data.fixer.io/api/2013-12-24?symbols=EUR,NOK,SEK,CZK'
        
        Or, you could pass it directly to ``update_rates`` method:
        
        .. code:: python
        
            >>> from djmoney.contrib.exchange.backends import OpenExchangeRatesBackend
            >>> backend = OpenExchangeRatesBackend(url='https://openexchangerates.org/api/historical/2017-01-01.json')
            >>> backend.update_rates(symbols='EUR,NOK,SEK,CZK')
        
        There is a possibility to use multiple backends in the same time:
        
        .. code:: python
        
            >>> from djmoney.contrib.exchange.backends import FixerBackend, OpenExchangeRatesBackend
            >>> from djmoney.contrib.exchange.models import get_rate
            >>> OpenExchangeRatesBackend().update_rates()
            >>> FixerBackend().update_rates()
            >>> get_rate('USD', 'EUR', backend=OpenExchangeRatesBackend.name)
            >>> get_rate('USD', 'EUR', backend=FixerBackend.name)
        
        Regular operations with ``Money`` will use ``EXCHANGE_BACKEND`` backend to get the rates.
        Also, there are two management commands for updating rates and removing them:
        
        .. code:: bash
        
            $ python manage.py update_rates
            Successfully updated rates from openexchangerates.org
            $ python manage.py clear_rates
            Successfully cleared rates for openexchangerates.org
        
        Both of them accept ``-b/--backend`` option, that will update/clear data only for this backend.
        And ``clear_rates`` accepts ``-a/--all`` option, that will clear data for all backends.
        
        To set up a periodic rates update you could use Celery task:
        
        .. code:: python
        
            CELERYBEAT_SCHEDULE = {
                'update_rates': {
                    'task': 'path.to.your.task',
                    'schedule': crontab(minute=0, hour=0),
                    'kwargs': {}  # For custom arguments
                }
            }
        
        Example task implementation:
        
        .. code:: python
        
            from django.utils.module_loading import import_string
        
            from celery import Celery
            from djmoney import settings
        
        
            app = Celery('tasks', broker='pyamqp://guest@localhost//')
        
        
            @app.task
            def update_rates(backend=settings.EXCHANGE_BACKEND, **kwargs):
                backend = import_string(backend)()
                backend.update_rates(**kwargs)
        
        To convert one currency to another:
        
        .. code:: python
        
            >>> from djmoney.money import Money
            >>> from djmoney.contrib.exchange.models import convert_money
            >>> convert_money(Money(100, 'EUR'), 'USD')
            <Money: 122.8184375038380800 USD>
        
        Exchange rates are integrated with Django Admin.
        
        django-money can be configured to automatically use this app for currency
        conversions by settings ``AUTO_CONVERT_MONEY = True`` in your Django
        settings. Note that currency conversion is a lossy process, so automatic
        conversion is usually a good strategy only for very simple use cases. For most
        use cases you will need to be clear about exactly when currency conversion
        occurs, and automatic conversion can hide bugs. Also, with automatic conversion
        you lose some properties like commutativity (``A + B == B + A``) due to
        conversions happening in different directions.
        
        Usage with Django REST Framework
        --------------------------------
        
        Make sure that ``djmoney`` and is in the ``INSTALLED_APPS`` of your
        ``settings.py`` and that ``rest_framework`` has been installed. MoneyField will
        automatically register a serializer for Django REST Framework through
        ``djmoney.apps.MoneyConfig.ready()``.
        
        You can add a serializable field the following way:
        
        .. code:: python
        
            from djmoney.contrib.django_rest_framework import MoneyField
        
            class Serializers(serializers.Serializer):
                my_computed_prop = MoneyField(max_digits=10, decimal_places=2)
        
        
        Built-in serializer works in the following way:
        
        .. code:: python
        
            class Expenses(models.Model):
                amount = MoneyField(max_digits=10, decimal_places=2)
        
        
            class Serializer(serializers.ModelSerializer):
                class Meta:
                    model = Expenses
                    fields = '__all__'
        
            >>> instance = Expenses.objects.create(amount=Money(10, 'EUR'))
            >>> serializer = Serializer(instance=instance)
            >>> serializer.data
            ReturnDict([
                ('id', 1),
                ('amount_currency', 'EUR'),
                ('amount', '10.000'),
            ])
        
        Note that when specifying individual fields on your serializer, the amount and currency fields are treated separately.
        To achieve the same behaviour as above you would include both field names:
        
        .. code:: python
        
            class Serializer(serializers.ModelSerializer):
                class Meta:
                    model = Expenses
                    fields = ('id', 'amount', 'amount_currency')
        
        Customization
        -------------
        
        If there is a need to customize the process deconstructing ``Money`` instances onto Django Fields and the other way around,
        then it is possible to use a custom descriptor like this one:
        
        .. code:: python
        
            class MyMoneyDescriptor:
        
                def __get__(self, obj, type=None):
                    amount = obj.__dict__[self.field.name]
                    return Money(amount, "EUR")
        
        It will always use ``EUR`` for all ``Money`` instances when ``obj.money`` is called. Then it should be passed to ``MoneyField``:
        
        .. code:: python
        
            class Expenses(models.Model):
                amount = MoneyField(max_digits=10, decimal_places=2, money_descriptor_class=MyMoneyDescriptor)
        
        
        Background
        ----------
        
        This project is a fork of the Django support that was in
        http://code.google.com/p/python-money/
        
        This version adds tests, and comes with several critical bugfixes.
        
Keywords: django,py-money,money
Platform: Any
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Framework :: Django
Classifier: Framework :: Django :: 1.11
Classifier: Framework :: Django :: 2.1
Classifier: Framework :: Django :: 2.2
Classifier: Framework :: Django :: 3.0
Classifier: Framework :: Django :: 3.1
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Requires-Python: >=3.5
Description-Content-Type: text/x-rst
Provides-Extra: test
Provides-Extra: exchange
