88 lines
3.8 KiB
Python
88 lines
3.8 KiB
Python
import uuid
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from datetime import datetime
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from typing import Iterable
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from boltons import urlutils
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from citext import CIText
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from flask import g
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from sqlalchemy.dialects.postgresql import UUID, JSONB
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from teal.db import check_range, IntEnum
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from teal.resource import url_for_resource
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from ereuse_devicehub.db import db
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from ereuse_devicehub.resources.enums import TransferState
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from ereuse_devicehub.resources.lot.models import Lot
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from ereuse_devicehub.resources.models import Thing
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from ereuse_devicehub.resources.user.models import User
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class Deliverynote(Thing):
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id = db.Column(UUID(as_uuid=True), primary_key=True) # uuid is generated on init by default
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document_id = db.Column(CIText(), nullable=False)
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creator_id = db.Column(UUID(as_uuid=True),
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db.ForeignKey(User.id),
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nullable=False,
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default=lambda: g.user.id)
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creator = db.relationship(User, primaryjoin=creator_id == User.id)
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supplier_email = db.Column(CIText(),
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db.ForeignKey(User.email),
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nullable=False,
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default=lambda: g.user.email)
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supplier = db.relationship(User, primaryjoin=lambda: Deliverynote.supplier_email == User.email)
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receiver_address = db.Column(CIText(),
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db.ForeignKey(User.email),
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nullable=False,
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default=lambda: g.user.email)
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receiver = db.relationship(User, primaryjoin=lambda: Deliverynote.receiver_address == User.email)
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date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
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date.comment = 'The date the DeliveryNote initiated'
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deposit = db.Column(db.Integer, check_range('deposit', min=0, max=100), default=0)
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# The following fields are supposed to be 0:N relationships
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# to SnapshotDelivery entity.
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# At this stage of implementation they will treated as a
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# comma-separated string of the devices expexted/transfered
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expected_devices = db.Column(JSONB, nullable=False)
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# expected_devices = db.Column(db.ARRAY(JSONB, dimensions=1), nullable=False)
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transferred_devices = db.Column(db.ARRAY(db.Integer, dimensions=1), nullable=True)
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transfer_state = db.Column(IntEnum(TransferState), default=TransferState.Initial, nullable=False)
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transfer_state.comment = TransferState.__doc__
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ethereum_address = db.Column(CIText(), unique=True, default=None)
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lot_id = db.Column(UUID(as_uuid=True),
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db.ForeignKey(Lot.id),
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nullable=False)
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lot = db.relationship(Lot,
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backref=db.backref('deliverynote', uselist=False, lazy=True),
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lazy=True,
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primaryjoin=Lot.id == lot_id)
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def __init__(self, document_id: str, deposit: str, date,
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supplier_email: str,
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expected_devices: Iterable,
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transfer_state: TransferState) -> None:
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"""Initializes a delivery note
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"""
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super().__init__(id=uuid.uuid4(),
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document_id=document_id, deposit=deposit, date=date,
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supplier_email=supplier_email,
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expected_devices=expected_devices,
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transfer_state=transfer_state)
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@property
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def type(self) -> str:
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return self.__class__.__name__
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@property
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def url(self) -> urlutils.URL:
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"""The URL where to GET this action."""
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return urlutils.URL(url_for_resource(Deliverynote, item_id=self.id))
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def delete(self):
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"""Deletes the deliverynote.
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This method removes the delivery note.
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"""
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db.session.delete(self)
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def __repr__(self) -> str:
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return '<Deliverynote {0.documentID}>'.format(self)
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