116 lines
3.8 KiB
Python
116 lines
3.8 KiB
Python
"""This file contains all proofs related to actions
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"""
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from collections import Iterable
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from datetime import datetime
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from typing import Optional, Set, Union
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from uuid import uuid4
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from boltons import urlutils
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from citext import CIText
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from flask import current_app as app, g
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from sortedcontainers import SortedSet
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from sqlalchemy import BigInteger, Column, Enum as DBEnum, \
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ForeignKey, Integer, Unicode
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from sqlalchemy.dialects.postgresql import UUID
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from sqlalchemy.ext.declarative import declared_attr
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from sqlalchemy.ext.orderinglist import ordering_list
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from sqlalchemy.orm import backref, relationship, validates
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from sqlalchemy.util import OrderedSet
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from teal.db import CASCADE_OWN, INHERIT_COND, POLYMORPHIC_ID, \
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POLYMORPHIC_ON, StrictVersionType, URL
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from teal.marshmallow import ValidationError
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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.action.models import Action, DisposeProduct, \
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EraseBasic, Rate, Trade
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from ereuse_devicehub.resources.models import Thing
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class JoinedTableMixin:
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# noinspection PyMethodParameters
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@declared_attr
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def id(cls):
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return Column(UUID(as_uuid=True), ForeignKey(Proof.id), primary_key=True)
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class Proof(Thing):
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"""Proof over an action.
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"""
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid4)
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type = Column(Unicode, nullable=False)
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ethereum_hashes = Column(CIText(), default='', nullable=False)
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@property
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def url(self) -> urlutils.URL:
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"""The URL where to GET this proof."""
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return urlutils.URL(url_for_resource(Proof, item_id=self.id))
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@property
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def certificate(self) -> Optional[urlutils.URL]:
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return None
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# noinspection PyMethodParameters
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@declared_attr
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def __mapper_args__(cls):
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"""Defines inheritance.
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From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
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extensions/declarative/api.html
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#sqlalchemy.ext.declarative.declared_attr>`_
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"""
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args = {POLYMORPHIC_ID: cls.t}
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if cls.t == 'Proof':
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args[POLYMORPHIC_ON] = cls.type
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# noinspection PyUnresolvedReferences
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if JoinedTableMixin in cls.mro():
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args[INHERIT_COND] = cls.id == Proof.id
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return args
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def __init__(self, **kwargs) -> None:
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# sortedset forces us to do this before calling our parent init
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super().__init__(**kwargs)
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def __repr__(self):
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return '<{0.t} {0.id} >'.format(self)
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class ProofTransfer(JoinedTableMixin, Proof):
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transfer_id = Column(UUID, ForeignKey(Trade.id), nullable=False)
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transfer = relationship(DisposeProduct,
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primaryjoin=DisposeProduct.id == transfer_id)
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class ProofDataWipe(JoinedTableMixin, Proof):
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erasure_type = Column(CIText())
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date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
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result = db.Column(db.Boolean, default=False, nullable=False)
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erasure_id = Column(UUID, ForeignKey(EraseBasic.id), nullable=False)
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erasure = relationship(EraseBasic,
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backref=backref('proofs_datawipe',
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lazy=True,
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cascade=CASCADE_OWN),
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primaryjoin=EraseBasic.id == erasure_id)
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class ProofFunction(JoinedTableMixin, Proof):
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disk_usage = db.Column(db.Integer, default=0)
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rate_id = Column(UUID, ForeignKey(Rate.id), nullable=False)
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rate = relationship(Rate,
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primaryjoin=Rate.id == rate_id)
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class ProofReuse(JoinedTableMixin, Proof):
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price = db.Column(db.Integer)
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class ProofRecycling(JoinedTableMixin, Proof):
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collection_point = Column(CIText())
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date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
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contact = Column(CIText())
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ticket = Column(CIText())
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gps_location = Column(CIText())
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