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from __future__ import absolute_import
import json
import decimal
import datetime
from . import models
class JSONEncoder(json.JSONEncoder):
def default(self, value):
# The following types should simply be cast to strings
str_types = (
datetime.date,
datetime.datetime,
datetime.timedelta,
datetime.tzinfo,
decimal.Decimal,
)
dict_types = (
models.Balance,
models.Amount,
)
# Handle native types that should be converted to strings
if isinstance(value, str_types):
return str(value)
# Handling of the Transaction objects to include the actual
# transactions
elif isinstance(value, models.Transactions):
data = value.data.copy()
data['transactions'] = value.transactions
return data
# If an object has a `data` attribute, return that instead of the
# `__dict__` ro prevent loops
elif hasattr(value, 'data'):
return value.data
# Handle types that have a `__dict__` containing the data (doesn't work
# for classes using `__slots__` such as `datetime`)
elif isinstance(value, dict_types):
return value.__dict__
else: # pragma: no cover
return json.JSONEncoder.default(self, value)
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