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devicehub-teal/ereuse_devicehub/resources/deliverynote/models.py

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2020-02-26 19:21:59 +00:00
import uuid
from datetime import datetime
from typing import Union
from boltons import urlutils
from citext import CIText
from flask import g
from sqlalchemy import TEXT, Enum as DBEnum
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy_utils import LtreeType
from sqlalchemy_utils.types.ltree import LQUERY
from teal.db import CASCADE_OWN, UUIDLtree, check_range, IntEnum
from teal.resource import url_for_resource
from ereuse_devicehub.db import create_view, db, exp, f
from ereuse_devicehub.resources.models import Thing
from ereuse_devicehub.resources.user.models import User
from ereuse_devicehub.resources.enums import TransferState
class DeliveryNote(Thing):
id = db.Column(UUID(as_uuid=True), primary_key=True) # uuid is generated on init by default
# creator = db.relationship(User, primaryjoin=owner_address == User.ethereum_address)
documentID = db.Column(CIText(), nullable=False)
# supplier = db.relationship(User, primaryjoin=owner_address == User.ethereum_address)
# deposit = db.Column(db.Integer, check_range('deposit', min=0, max=100), default=0)
# owner_address = db.Column(CIText(),
# db.ForeignKey(User.ethereum_address),
# nullable=False,
# default=lambda: g.user.ethereum_address)
# transfer_state = db.Column(IntEnum(TransferState), default=TransferState.Initial, nullable=False)
# transfer_state.comment = TransferState.__doc__
# lots = db.relationship(Lot,
# backref=db.backref('deliverynotes', lazy=True, collection_class=set),
# secondary=lambda: LotDevice.__table__,
# lazy=True,
# collection_class=set)
"""The **children** devices that the lot has.
# Note that the lot can have more devices, if they are inside
# descendant lots.
# """
# parents = db.relationship(lambda: Lot,
# viewonly=True,
# lazy=True,
# collection_class=set,
# secondary=lambda: LotParent.__table__,
# primaryjoin=lambda: Lot.id == LotParent.child_id,
# secondaryjoin=lambda: LotParent.parent_id == Lot.id,
# cascade='refresh-expire', # propagate changes outside ORM
# backref=db.backref('children',
# viewonly=True,
# lazy=True,
# cascade='refresh-expire',
# collection_class=set)
# )
# """The parent lots."""
# all_devices = db.relationship(Device,
# viewonly=True,
# lazy=True,
# collection_class=set,
# secondary=lambda: LotDeviceDescendants.__table__,
# primaryjoin=lambda: Lot.id == LotDeviceDescendants.ancestor_lot_id,
# secondaryjoin=lambda: LotDeviceDescendants.device_id == Device.id)
# """All devices, including components, inside this lot and its
# descendants.
# """
# deposit = db.Column(db.Integer, check_range('deposit', min=0, max=100), default=0)
# owner_address = db.Column(CIText(),
# db.ForeignKey(User.ethereum_address),
# nullable=False,
# default=lambda: g.user.ethereum_address)
# owner = db.relationship(User, primaryjoin=owner_address == User.ethereum_address)
# transfer_state = db.Column(IntEnum(TransferState), default=TransferState.Initial, nullable=False)
# transfer_state.comment = TransferState.__doc__
# receiver_address = db.Column(CIText(),
# db.ForeignKey(User.ethereum_address),
# nullable=True)
# receiver = db.relationship(User, primaryjoin=receiver_address == User.ethereum_address)
# deliverynote_address = db.Column(CIText(), nullable=True)
def __init__(self) -> None:
"""Initializes a delivery note
"""
super().__init__(id=uuid.uuid4())
@property
def type(self) -> str:
return self.__class__.__name__
@property
def url(self) -> urlutils.URL:
"""The URL where to GET this action."""
return urlutils.URL(url_for_resource(DeliveryNote, item_id=self.id))
# def delete(self):
# """Deletes the lot.
# This method removes the children lots and children
# devices orphan from this lot and then marks this lot
# for deletion.
# """
# self.remove_children(*self.children)
# db.session.delete(self)
# def _refresh_models_with_relationships_to_lots(self):
# session = db.Session.object_session(self)
# for model in session:
# if isinstance(model, (Device, Lot, Path)):
# session.expire(model)
# def __contains__(self, child: Union['Lot', Device]):
# if isinstance(child, Lot):
# return Path.has_lot(self.id, child.id)
# elif isinstance(child, Device):
# device = db.session.query(LotDeviceDescendants) \
# .filter(LotDeviceDescendants.device_id == child.id) \
# .filter(LotDeviceDescendants.ancestor_lot_id == self.id) \
# .one_or_none()
# return device
# else:
# raise TypeError('Lot only contains devices and lots, not {}'.format(child.__class__))
def __repr__(self) -> str:
# return '<Lot {0.name} devices={0.devices!r}>'.format(self)
return '<DeliveryNote {0.documentID}>'.format(self)
# class LotDevice(db.Model):
# device_id = db.Column(db.BigInteger, db.ForeignKey(Device.id), primary_key=True)
# lot_id = db.Column(UUID(as_uuid=True), db.ForeignKey(Lot.id), primary_key=True)
# created = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
# author_id = db.Column(UUID(as_uuid=True),
# db.ForeignKey(User.id),
# nullable=False,
# default=lambda: g.user.id)
# author = db.relationship(User, primaryjoin=author_id == User.id)
# author_id.comment = """The user that put the device in the lot."""