class Cashin(BankingTransaction):
__tablename__ = 'cashin'
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
id = Field(Integer(), ForeignKey(BankingTransaction.id), primary_key=True)
# TODO: Add some salt to prevent man in the middle (Extra field to send on creation and check on verification)
transaction_id = Field(Unicode())
class BankAccount(BankingId):
__tablename__ = 'bank_account'
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
id = Field(Integer(), ForeignKey(BankingId.id), primary_key=True)
fiat_symbol = Field(Unicode(10), ForeignKey('fiat.symbol'))
iban = Field(Unicode(50), pattern=r'^[A-Z]{2}[A-Z0-9]{4,10}[0-9]{5,40}$') # TODO: Should be unique if is_valid
owner = Field(Unicode(100))
bic = Field(Unicode(20), pattern=r'^[A-Z]{6}[A-Z0-9]{2}([A-Z0-9]{3})?$', nullable=True)
class BankCard(BankingId):
__tablename__ = 'bank_card'
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
id = Field(Integer(), ForeignKey(BankingId.id), primary_key=True)
fiat_symbol = Field(Unicode(10), ForeignKey('fiat.symbol'))
pan = Field(Unicode(30), pattern=r'^([0-9]{4}-){3}[0-9]{4}$') # TODO: Should be unique if is_valid
holder = Field(Unicode(100))
expiration = Field(Unicode(7), pattern=r'^[0-1]{1}/[0-9]{2,4}$', nullable=True, protected=True) # mm/yy or mm/yyyy
class Cashout(BankingTransaction):
__tablename__ = 'cashout'
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
id = Field(Integer(), ForeignKey(BankingTransaction.id), primary_key=True)
class ActivationMixin:
activated_at = Field(DateTime, nullable=True, json='activatedAt', readonly=True, protected=True)
@hybrid_property
def is_active(self):
return self.activated_at is not None
@is_active.setter
def is_active(self, value):
self.activated_at = datetime.now() if value else None
@is_active.expression
def is_active(self):
# noinspection PyUnresolvedReferences
return self.activated_at.isnot(None)
@classmethod
def filter_activated(cls, query=None):
# noinspection PyUnresolvedReferences
return (query or cls.query).filter(cls.is_active)
@classmethod
def import_value(cls, column, v):
# noinspection PyUnresolvedReferences
if column.key == cls.is_active.key and not isinstance(v, bool):
return str(v).lower() == 'true'
# noinspection PyUnresolvedReferences
return super().import_value(column, v)
class OrderableMixin:
order = Field("order", Integer, default=0, nullable=False)
__mapper_args__ = dict(order_by=order)
@classmethod
def apply_default_sort(cls, query=None):
return (query or cls.query).order_by(cls.order)
class BankingId(TimestampMixin, DeclarativeBase):
__tablename__ = 'banking_id'
id = Field(Integer(), primary_key=True)
client_id = Field(Integer(), ForeignKey('client.id'))
is_verified = Field(Boolean(), default=False)
error = Field(Unicode(), nullable=True)
client = relationship('Client', lazy='select', protected=True)
type = Field(Enum('bank_account', 'bank_card', name='banking_id_type'))
__mapper_args__ = {
'polymorphic_identity': __tablename__,
'polymorphic_on': type
}
class Ticket(ModifiedMixin, PaginationMixin, DeclarativeBase):
__tablename__ = 'ticket'
id = Field(Integer(), primary_key=True)
title = Field(Unicode())
member_id = Field(Integer(), ForeignKey('member.id'))
department_id = Field(Integer(), ForeignKey('ticket_department.id'))
closed_at = Field(DateTime(), nullable=True)
department = relationship('TicketDepartment', uselist=False)
@hybrid_property
def is_closed(self):
return self.closed_at is not None
@is_closed.setter
def is_closed(self, value):
self.closed_at = datetime.now() if value else None
@is_closed.expression
def is_closed(self):
# noinspection PyUnresolvedReferences
return self.closed_at.isnot(None)
@classmethod
def import_value(cls, column, v):
# noinspection PyUnresolvedReferences
if column.key == cls.is_closed.key and not isinstance(v, bool):
return str(v).lower() == 'true'
# noinspection PyUnresolvedReferences
return super().import_value(column, v)
def to_dict(self):
result = super().to_dict()
first_message = DBSession.query(TicketMessage) \
.filter(TicketMessage.ticket_id == self.id) \
.order_by(TicketMessage.created_at) \
.first()
result['firstMessage'] = first_message.to_dict() if (first_message is not None) else None
return result
class TicketMessage(ModifiedMixin, PaginationMixin, DeclarativeBase):
__tablename__ = 'ticket_message'
id = Field(Integer(), primary_key=True)
ticket_id = Field(Integer(), ForeignKey(Ticket.id))
member_id = Field(Integer(), ForeignKey('member.id'))
text = Field(Unicode())
is_answer = Field(Boolean(), default=False)
_attachment = Field(TicketAttachment.as_mutable(JSON), nullable=True, protected=True)
ticket = relationship(Ticket, lazy='select', uselist=False, protected=True)
@property
def attachment(self):
return self._attachment.locate() if self._attachment else None
@attachment.setter
def attachment(self, value):
if value is not None:
self._attachment = TicketAttachment.create_from(value)
else:
self._attachment = None
def to_dict(self):
result = super().to_dict()
result['attachment'] = self.attachment
return result
class BankingTransaction(ModifiedMixin, OrderingMixin, FilteringMixin, PaginationMixin, DeclarativeBase):
__tablename__ = 'banking_transaction'
id = Field(Integer(), primary_key=True)
fiat_symbol = Field(Unicode(10), ForeignKey('fiat.symbol'))
member_id = Field(Integer(), ForeignKey('member.id')) # FIXME: Change the name to `member_id`
payment_gateway_name = Field(Unicode(30), ForeignKey('payment_gateway.name'))
amount = Field(DECIMAL(18, 8)) # Value without commission
commission = Field(DECIMAL(18, 8), default=Decimal(0))
error = Field(Unicode(), nullable=True)
reference_id = Field(Unicode(260), nullable=True)
banking_id_id = Field(Integer(), ForeignKey('banking_id.id'), protected=True)
payment_gateway = relationship('PaymentGateway')
banking_id = relationship('BankingId')
type = Field(Unicode(50))
member = relationship('Member')
__mapper_args__ = {
'polymorphic_identity': __tablename__,
'polymorphic_on': type
}
class ModifiedMixin(TimestampMixin):
modified_at = Field(DateTime, nullable=True, json='modifiedAt', readonly=True)
@property
def last_modification_time(self):
return self.modified_at or self.created_at
# FIXME: rename it to before_update
# noinspection PyUnusedLocal
@staticmethod
def on_update(mapper, connection, target):
target.modified_at = datetime.now()
@classmethod
def __declare_last__(cls):
event.listen(cls, 'before_update', cls.on_update)
class SoftDeleteMixin:
removed_at = Field(DateTime,
nullable=True,
json='removedAt',
readonly=True)
def assert_is_not_deleted(self):
if self.is_deleted:
raise ValueError('Object is already deleted.')
def assert_is_deleted(self):
if not self.is_deleted:
raise ValueError('Object is not deleted.')
@property
def is_deleted(self):
return self.removed_at is not None
def soft_delete(self, ignore_errors=False):
if not ignore_errors:
self.assert_is_not_deleted()
self.removed_at = datetime.now()
def soft_undelete(self, ignore_errors=False):
if not ignore_errors:
self.assert_is_deleted()
self.removed_at = None
@staticmethod
def on_delete(mapper, connection, target):
raise HttpConflict('Cannot remove this object: %s' % target)
@classmethod
def __declare_last__(cls):
event.listen(cls, 'before_delete', cls.on_delete)
@classmethod
def filter_deleted(cls, query=None):
# noinspection PyUnresolvedReferences
return (query or cls.query).filter(cls.removed_at.isnot(None))
@classmethod
def exclude_deleted(cls, query=None):
# noinspection PyUnresolvedReferences
return (query or cls.query).filter(cls.removed_at.is_(None))
class Market(OrderingMixin, FilteringMixin, DeclarativeBase):
"""
Currency pairs are sometimes then written by concatenating the ISO currency codes (ISO 4217) of the base currency
and the counter currency, separating them with a slash character. Often the slash character is omitted,
alternatively the slash may be replaced by and etc. A widely traded currency pair is the relation of the euro
against the US dollar, designated as EUR/USD. The quotation EUR/USD 1.2500 means that one euro is exchanged for
1.2500 US dollars. Here, EUR is the base currency and USD is the quote currency(counter currency). This means that
1 Euro can be exchangeable to 1.25 US Dollars.
Reference: https://en.wikipedia.org/wiki/Currency_pair
"""
__tablename__ = 'market'
name = Field(Unicode(20),
pattern=r'^[A-Z0-9]{1,10}_[A-Z0-9]{1,10}$',
primary_key=True) # e.g. btc_usd
base_currency_symbol = Field(Unicode(),
ForeignKey('currency.symbol'),
protected=True)
quote_currency_symbol = Field(Unicode(),
ForeignKey('currency.symbol'),
protected=True)
base_currency = relationship('Currency',
foreign_keys=[base_currency_symbol])
quote_currency = relationship('Currency',
foreign_keys=[quote_currency_symbol])
buy_amount_min = Field(DECIMAL(18, 8), default=Decimal('0.00000100'))
buy_amount_max = Field(DECIMAL(18, 8), default=Decimal('100.00000000'))
sell_amount_min = Field(DECIMAL(18, 8), default=Decimal('0.00000100'))
sell_amount_max = Field(DECIMAL(18, 8), default=Decimal('100.00000000'))
taker_commission_rate = Field(Unicode(10), default='0.4')
maker_commission_rate = Field(Unicode(10), default='0.1')
# taker_static_commission = Field(BigInteger(), default=0)
# taker_permille_commission = Field(Integer(), default=0)
# taker_max_commission = Field(BigInteger(), default=0)
# maker_static_commission = Field(BigInteger(), default=0)
# maker_permille_commission = Field(Integer(), default=0)
# maker_max_commission = Field(BigInteger(), default=0)
def to_dict(self):
result = super().to_dict()
# TODO: Get the current user's wallet_tier_policy about this currency
# result['tirePolicy'] = {}
result['buyAmountMin'] = self.base_currency.normalized_to_output(
self.buy_amount_min)
result['buyAmountMax'] = self.base_currency.normalized_to_output(
self.buy_amount_max)
result['sellAmountMin'] = self.base_currency.normalized_to_output(
self.sell_amount_min)
result['sellAmountMax'] = self.base_currency.normalized_to_output(
self.sell_amount_max)
return result
def get_last_price(self):
try:
return Decimal(stexchange_client.market_last(self.name))
except StexchangeException as e:
raise stexchange_http_exception_handler(e)
def validate_ranges(self, type_, total_amount, price=None):
# TODO: Review and rewrite the price threshold validator
# threshold = Decimal(settings.trader.price_threshold_permille)
# price_rate = Decimal(1000 * (price or self.get_last_price()) / self.get_last_price()) - Decimal(1000)
if type_ == 'buy':
# if price_rate > threshold:
# raise HttpBadRequest('Price not in valid range', 'price-not-in-range')
if total_amount < self.buy_amount_min or \
(self.buy_amount_max != 0 and total_amount > self.buy_amount_max):
raise HttpBadRequest('Amount not in range',
'amount-not-in-range')
elif type_ == 'sell':
# if price_rate < -threshold:
# raise HttpBadRequest('Price not in valid range', 'price-not-in-range')
if total_amount < self.sell_amount_min or \
(self.sell_amount_max != 0 and total_amount > self.sell_amount_max):
raise HttpBadRequest('Amount not in range',
'amount-not-in-range')
class TicketDepartment(DeclarativeBase):
__tablename__ = 'ticket_department'
id = Field(Integer(), primary_key=True)
title = Field(Unicode(50))
class AutoActivationMixin(ActivationMixin):
activated_at = Field(
DateTime, nullable=True, json='activatedAt', readonly=True, protected=True, default=datetime.now
)
class TimestampMixin:
created_at = Field(DateTime, default=datetime.now, nullable=False, json='createdAt', readonly=True)
class PaymentGateway(DeclarativeBase):
__tablename__ = 'payment_gateway'
name = Field(Unicode(30), primary_key=True)
fiat_symbol = Field(Unicode(10), ForeignKey('fiat.symbol'))
# # TODO: Will be deprecated and replaced by tiers
cashin_min = Field(DECIMAL(18, 8), default=Decimal('0.00001000'))
cashin_max = Field(DECIMAL(18, 8), default=Decimal('100.00000000'))
cashin_static_commission = Field(DECIMAL(18, 8), default=Decimal('0.00000000'))
cashin_commission_rate = Field(Unicode(10), default="0.000")
cashin_max_commission = Field(DECIMAL(18, 8), default=Decimal('0.00000000'))
# # TODO: Will be deprecated and replaced by tiers
cashout_min = Field(DECIMAL(18, 8), default=Decimal('0.00010000'))
cashout_max = Field(DECIMAL(18, 8), default=Decimal('100.00000000'))
cashout_static_commission = Field(DECIMAL(18, 8), default=Decimal('0.00000000'))
cashout_commission_rate = Field(Unicode(10), default="0.005")
cashout_max_commission = Field(DECIMAL(18, 8), default=Decimal('0.00000000'))
fiat = relationship('Fiat')
def to_dict(self):
result = super().to_dict()
# TODO: Get the current user's fiat_tier_policy about this currency
# result['tirePolicy'] = {}
result['cashoutMin'] = self.fiat.normalized_to_output(self.cashout_min)
result['cashoutMax'] = self.fiat.normalized_to_output(self.cashout_max)
result['cashoutStaticCommission'] = self.fiat.normalized_to_output(self.cashout_static_commission)
result['cashoutMaxCommission'] = self.fiat.normalized_to_output(self.cashout_max_commission)
result['cashinMin'] = self.fiat.normalized_to_output(self.cashin_min)
result['cashinMax'] = self.fiat.normalized_to_output(self.cashin_max)
result['cashinStaticCommission'] = self.fiat.normalized_to_output(self.cashin_static_commission)
result['cashinMaxCommission'] = self.fiat.normalized_to_output(self.cashin_max_commission)
return result
def calculate_cashout_commission(self, amount: Decimal) -> Decimal:
commission = self.cashout_static_commission
if self.cashout_commission_rate != Decimal(0):
commission += amount * Decimal(self.cashout_commission_rate)
return min(
commission, self.cashout_max_commission
) if self.cashout_max_commission != Decimal(0) else commission
def calculate_cashin_commission(self, amount: Decimal) -> Decimal:
commission = self.cashin_static_commission
if self.cashin_commission_rate != Decimal(0):
commission += amount * Decimal(self.cashin_commission_rate)
return min(
commission, self.cashin_max_commission
) if self.cashin_max_commission != Decimal(0) else commission