1481 lines
54 KiB
Python
1481 lines
54 KiB
Python
"""
|
||
This file contains all events can apply to a device and is sorted according to a structure based on:
|
||
|
||
* Generic Events
|
||
* Benchmarks
|
||
* Tests
|
||
* Rates
|
||
* Prices
|
||
|
||
Within the above general classes are subclasses in A order.
|
||
"""
|
||
|
||
from collections import Iterable
|
||
from contextlib import suppress
|
||
from datetime import datetime, timedelta
|
||
from decimal import Decimal, ROUND_HALF_EVEN, ROUND_UP
|
||
from typing import Optional, Set, Union
|
||
from uuid import uuid4
|
||
|
||
import inflection
|
||
import teal.db
|
||
from boltons import urlutils
|
||
from citext import CIText
|
||
from flask import current_app as app, g
|
||
from sqlalchemy import BigInteger, Boolean, CheckConstraint, Column, Enum as DBEnum, \
|
||
Float, ForeignKey, Integer, Interval, JSON, Numeric, SmallInteger, Unicode, event, orm
|
||
from sqlalchemy.dialects.postgresql import UUID
|
||
from sqlalchemy.ext.declarative import declared_attr
|
||
from sqlalchemy.ext.orderinglist import ordering_list
|
||
from sqlalchemy.orm import backref, relationship, validates
|
||
from sqlalchemy.orm.events import AttributeEvents as Events
|
||
from sqlalchemy.util import OrderedSet
|
||
from teal.db import ArrayOfEnum, CASCADE_OWN, INHERIT_COND, IP, POLYMORPHIC_ID, \
|
||
POLYMORPHIC_ON, StrictVersionType, URL, check_lower, check_range
|
||
from teal.enums import Country, Currency, Subdivision
|
||
from teal.marshmallow import ValidationError
|
||
from teal.resource import url_for_resource
|
||
|
||
from ereuse_devicehub.db import db
|
||
from ereuse_devicehub.resources.agent.models import Agent
|
||
from ereuse_devicehub.resources.device.models import Component, Computer, DataStorage, Desktop, \
|
||
Device, Laptop, Server
|
||
from ereuse_devicehub.resources.enums import AppearanceRange, BatteryHealth, BiosAccessRange, \
|
||
ErasureStandards, FunctionalityRange, PhysicalErasureMethod, PriceSoftware, \
|
||
R_NEGATIVE, R_POSITIVE, RatingRange, ReceiverRole, Severity, SnapshotExpectedEvents, \
|
||
SnapshotSoftware, TestDataStorageLength
|
||
from ereuse_devicehub.resources.models import STR_SM_SIZE, Thing
|
||
from ereuse_devicehub.resources.user.models import User
|
||
|
||
|
||
class JoinedTableMixin:
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def id(cls):
|
||
return Column(UUID(as_uuid=True), ForeignKey(Event.id), primary_key=True)
|
||
|
||
|
||
class Event(Thing):
|
||
"""Event performed on a device.
|
||
|
||
This class extends `Schema's Action <https://schema.org/Action>`_.
|
||
"""
|
||
id = Column(UUID(as_uuid=True), primary_key=True, default=uuid4)
|
||
type = Column(Unicode, nullable=False)
|
||
name = Column(CIText(), default='', nullable=False)
|
||
name.comment = """
|
||
A name or title for the event. Used when searching for events.
|
||
"""
|
||
severity = Column(teal.db.IntEnum(Severity), default=Severity.Info, nullable=False)
|
||
severity.comment = Severity.__doc__
|
||
closed = Column(Boolean, default=True, nullable=False)
|
||
closed.comment = """
|
||
Whether the author has finished the event.
|
||
After this is set to True, no modifications are allowed.
|
||
By default events are closed when performed.
|
||
"""
|
||
description = Column(Unicode, default='', nullable=False)
|
||
description.comment = """
|
||
A comment about the event.
|
||
"""
|
||
start_time = Column(db.TIMESTAMP(timezone=True))
|
||
start_time.comment = """
|
||
When the action starts. For some actions like reservations
|
||
the time when they are available, for others like renting
|
||
when the renting starts.
|
||
"""
|
||
end_time = Column(db.TIMESTAMP(timezone=True))
|
||
end_time.comment = """
|
||
When the action ends. For some actions like reservations
|
||
the time when they expire, for others like renting
|
||
the time the end rents. For punctual actions it is the time
|
||
they are performed; it differs with ``created`` in which
|
||
created is the where the system received the action.
|
||
"""
|
||
|
||
snapshot_id = Column(UUID(as_uuid=True), ForeignKey('snapshot.id',
|
||
use_alter=True,
|
||
name='snapshot_events'))
|
||
snapshot = relationship('Snapshot',
|
||
backref=backref('events',
|
||
lazy=True,
|
||
cascade=CASCADE_OWN,
|
||
order_by=lambda: Event.created,
|
||
collection_class=OrderedSet),
|
||
primaryjoin='Event.snapshot_id == Snapshot.id')
|
||
|
||
author_id = Column(UUID(as_uuid=True),
|
||
ForeignKey(User.id),
|
||
nullable=False,
|
||
default=lambda: g.user.id)
|
||
# todo compute the org
|
||
author = relationship(User,
|
||
backref=backref('authored_events', lazy=True, collection_class=set),
|
||
primaryjoin=author_id == User.id)
|
||
author_id.comment = """
|
||
The user that recorded this action in the system.
|
||
|
||
This does not necessarily has to be the person that produced
|
||
the action in the real world. For that purpose see
|
||
``agent``.
|
||
"""
|
||
|
||
agent_id = Column(UUID(as_uuid=True),
|
||
ForeignKey(Agent.id),
|
||
nullable=False,
|
||
default=lambda: g.user.individual.id)
|
||
# todo compute the org
|
||
agent = relationship(Agent,
|
||
backref=backref('events_agent',
|
||
lazy=True,
|
||
collection_class=OrderedSet,
|
||
order_by=lambda: Event.created),
|
||
primaryjoin=agent_id == Agent.id)
|
||
agent_id.comment = """
|
||
The direct performer or driver of the action. e.g. John wrote a book.
|
||
|
||
It can differ with the user that registered the action in the
|
||
system, which can be in their behalf.
|
||
"""
|
||
|
||
components = relationship(Component,
|
||
backref=backref('events_components',
|
||
lazy=True,
|
||
order_by=lambda: Event.created,
|
||
collection_class=OrderedSet),
|
||
secondary=lambda: EventComponent.__table__,
|
||
order_by=lambda: Component.id,
|
||
collection_class=OrderedSet)
|
||
components.comment = """
|
||
The components that are affected by the event.
|
||
|
||
When performing events to parent devices their components are
|
||
affected too.
|
||
|
||
For example: an ``Allocate`` is performed to a Computer and this
|
||
relationship is filled with the components the computer had
|
||
at the time of the event.
|
||
|
||
For Add and Remove though, this has another meaning: the components
|
||
that are added or removed.
|
||
"""
|
||
parent_id = Column(BigInteger, ForeignKey(Computer.id))
|
||
parent = relationship(Computer,
|
||
backref=backref('events_parent',
|
||
lazy=True,
|
||
order_by=lambda: Event.created,
|
||
collection_class=OrderedSet),
|
||
primaryjoin=parent_id == Computer.id)
|
||
parent_id.comment = """
|
||
For events that are performed to components, the device parent
|
||
at that time.
|
||
|
||
For example: for a ``EraseBasic`` performed on a data storage, this
|
||
would point to the computer that contained this data storage, if any.
|
||
"""
|
||
|
||
__table_args__ = (
|
||
db.Index('ix_id', id, postgresql_using='hash'),
|
||
db.Index('ix_type', type, postgresql_using='hash'),
|
||
db.Index('ix_parent_id', parent_id, postgresql_using='hash')
|
||
)
|
||
|
||
@property
|
||
def elapsed(self):
|
||
"""Returns the elapsed time with seconds precision."""
|
||
t = self.end_time - self.start_time
|
||
return timedelta(seconds=t.seconds)
|
||
|
||
@property
|
||
def url(self) -> urlutils.URL:
|
||
"""The URL where to GET this event."""
|
||
return urlutils.URL(url_for_resource(Event, item_id=self.id))
|
||
|
||
@property
|
||
def certificate(self) -> Optional[urlutils.URL]:
|
||
return None
|
||
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Event':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
# noinspection PyUnresolvedReferences
|
||
if JoinedTableMixin in cls.mro():
|
||
args[INHERIT_COND] = cls.id == Event.id
|
||
return args
|
||
|
||
@validates('end_time')
|
||
def validate_end_time(self, _, end_time: datetime):
|
||
if self.start_time and end_time <= self.start_time:
|
||
raise ValidationError('The event cannot finish before it starts.')
|
||
return end_time
|
||
|
||
@validates('start_time')
|
||
def validate_start_time(self, _, start_time: datetime):
|
||
if self.end_time and start_time >= self.end_time:
|
||
raise ValidationError('The event cannot start after it finished.')
|
||
return start_time
|
||
|
||
@property
|
||
def date_str(self):
|
||
return '{:%c}'.format(self.end_time or self.created)
|
||
|
||
def __str__(self) -> str:
|
||
return '{}'.format(self.severity)
|
||
|
||
def __repr__(self):
|
||
return '<{0.t} {0.id} {0.severity}>'.format(self)
|
||
|
||
|
||
class EventComponent(db.Model):
|
||
device_id = Column(BigInteger, ForeignKey(Component.id), primary_key=True)
|
||
event_id = Column(UUID(as_uuid=True), ForeignKey(Event.id), primary_key=True)
|
||
|
||
|
||
class JoinedWithOneDeviceMixin:
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def id(cls):
|
||
return Column(UUID(as_uuid=True), ForeignKey(EventWithOneDevice.id), primary_key=True)
|
||
|
||
|
||
class EventWithOneDevice(JoinedTableMixin, Event):
|
||
device_id = Column(BigInteger, ForeignKey(Device.id), nullable=False)
|
||
device = relationship(Device,
|
||
backref=backref('events_one',
|
||
lazy=True,
|
||
cascade=CASCADE_OWN,
|
||
order_by=lambda: EventWithOneDevice.created,
|
||
collection_class=OrderedSet),
|
||
primaryjoin=Device.id == device_id)
|
||
|
||
__table_args__ = (
|
||
db.Index('event_one_device_id_index', device_id, postgresql_using='hash'),
|
||
)
|
||
|
||
def __repr__(self) -> str:
|
||
return '<{0.t} {0.id} {0.severity} device={0.device!r}>'.format(self)
|
||
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'EventWithOneDevice':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
|
||
class EventWithMultipleDevices(Event):
|
||
devices = relationship(Device,
|
||
backref=backref('events_multiple',
|
||
lazy=True,
|
||
order_by=lambda: EventWithMultipleDevices.created,
|
||
collection_class=OrderedSet),
|
||
secondary=lambda: EventDevice.__table__,
|
||
order_by=lambda: Device.id,
|
||
collection_class=OrderedSet)
|
||
|
||
def __repr__(self) -> str:
|
||
return '<{0.t} {0.id} {0.severity} devices={0.devices!r}>'.format(self)
|
||
|
||
|
||
class EventDevice(db.Model):
|
||
device_id = Column(BigInteger, ForeignKey(Device.id), primary_key=True)
|
||
event_id = Column(UUID(as_uuid=True), ForeignKey(EventWithMultipleDevices.id),
|
||
primary_key=True)
|
||
|
||
|
||
class Add(EventWithOneDevice):
|
||
"""The act of adding components to a device.
|
||
|
||
It is usually used internally from a :class:`.Snapshot`, for
|
||
example, when adding a secondary data storage to a computer.
|
||
"""
|
||
|
||
|
||
class Remove(EventWithOneDevice):
|
||
"""The act of removing components from a device.
|
||
|
||
It is usually used internally from a :class:`.Snapshot`, for
|
||
example, when removing a component from a broken computer.
|
||
"""
|
||
|
||
|
||
class Allocate(JoinedTableMixin, EventWithMultipleDevices):
|
||
to_id = Column(UUID, ForeignKey(User.id))
|
||
to = relationship(User, primaryjoin=User.id == to_id)
|
||
organization = Column(CIText())
|
||
|
||
|
||
class Deallocate(JoinedTableMixin, EventWithMultipleDevices):
|
||
from_id = Column(UUID, ForeignKey(User.id))
|
||
from_rel = relationship(User, primaryjoin=User.id == from_id)
|
||
organization = Column(CIText())
|
||
|
||
|
||
class EraseBasic(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""An erasure attempt to a ``DataStorage``. The event contains
|
||
information about success and nature of the erasure.
|
||
|
||
EraseBasic is a software-based fast non-100%-secured way of
|
||
erasing data storage, performed
|
||
by Workbench Computer when executing the open-source
|
||
`shred <https://en.wikipedia.org/wiki/Shred_(Unix)>`_.
|
||
|
||
Users can generate erasure certificates from successful erasures.
|
||
|
||
Erasures are an accumulation of **erasure steps**, that are performed
|
||
as separate actions, called ``StepRandom``, for an erasure step
|
||
that has overwritten data with random bits, and ``StepZero``,
|
||
for an erasure step that has overwritten data with zeros.
|
||
|
||
Erasure standards define steps and methodologies to use.
|
||
Devicehub automatically shows the standards that each erasure
|
||
follows.
|
||
"""
|
||
method = 'Shred'
|
||
"""The method or software used to destroy the data."""
|
||
|
||
@property
|
||
def standards(self):
|
||
"""A set of standards that this erasure follows."""
|
||
return ErasureStandards.from_data_storage(self)
|
||
|
||
@property
|
||
def certificate(self):
|
||
"""The URL of this erasure certificate."""
|
||
# todo will this url_for_resoure work for other resources?
|
||
return urlutils.URL(url_for_resource('Document', item_id=self.id))
|
||
|
||
def __str__(self) -> str:
|
||
return '{} on {}.'.format(self.severity, self.date_str)
|
||
|
||
def __format__(self, format_spec: str) -> str:
|
||
v = ''
|
||
if 't' in format_spec:
|
||
v += '{} {}'.format(self.type, self.severity)
|
||
if 't' in format_spec and 's' in format_spec:
|
||
v += '. '
|
||
if 's' in format_spec:
|
||
if self.standards:
|
||
std = 'with standards {}'.format(self.standards)
|
||
else:
|
||
std = 'no standard'
|
||
v += 'Method used: {}, {}. '.format(self.method, std)
|
||
if self.end_time and self.start_time:
|
||
v += '{} elapsed. '.format(self.elapsed)
|
||
|
||
v += 'On {}'.format(self.date_str)
|
||
return v
|
||
|
||
|
||
class EraseSectors(EraseBasic):
|
||
"""A secured-way of erasing data storages, checking sector-by-sector
|
||
the erasure, using `badblocks <https://en.wikipedia.org/wiki/Badblocks>`_.
|
||
"""
|
||
method = 'Badblocks'
|
||
|
||
|
||
class ErasePhysical(EraseBasic):
|
||
"""The act of physically destroying a data storage unit."""
|
||
method = Column(DBEnum(PhysicalErasureMethod))
|
||
|
||
|
||
class Step(db.Model):
|
||
erasure_id = Column(UUID(as_uuid=True),
|
||
ForeignKey(EraseBasic.id, ondelete='CASCADE'),
|
||
primary_key=True)
|
||
type = Column(Unicode(STR_SM_SIZE), nullable=False)
|
||
num = Column(SmallInteger, primary_key=True)
|
||
severity = Column(teal.db.IntEnum(Severity), default=Severity.Info, nullable=False)
|
||
start_time = Column(db.TIMESTAMP(timezone=True), nullable=False)
|
||
start_time.comment = Event.start_time.comment
|
||
end_time = Column(db.TIMESTAMP(timezone=True), CheckConstraint('end_time > start_time'),
|
||
nullable=False)
|
||
end_time.comment = Event.end_time.comment
|
||
|
||
erasure = relationship(EraseBasic,
|
||
backref=backref('steps',
|
||
cascade=CASCADE_OWN,
|
||
order_by=num,
|
||
collection_class=ordering_list('num')))
|
||
|
||
@property
|
||
def elapsed(self):
|
||
"""Returns the elapsed time with seconds precision."""
|
||
t = self.end_time - self.start_time
|
||
return timedelta(seconds=t.seconds)
|
||
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Step':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
def __format__(self, format_spec: str) -> str:
|
||
return '{} – {} {}'.format(self.severity, self.type, self.elapsed)
|
||
|
||
|
||
class StepZero(Step):
|
||
pass
|
||
|
||
|
||
class StepRandom(Step):
|
||
pass
|
||
|
||
|
||
class Snapshot(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The Snapshot sets the physical information of the device (S/N, model...)
|
||
and updates it with erasures, benchmarks, ratings, and tests; updates the
|
||
composition of its components (adding / removing them), and links tags
|
||
to the device.
|
||
|
||
When receiving a Snapshot, the DeviceHub creates, adds and removes
|
||
components to match the Snapshot. For example, if a Snapshot of a computer
|
||
contains a new component, the system searches for the component in its
|
||
database and, if not found, its creates it; finally linking it to the
|
||
computer.
|
||
|
||
A Snapshot is used with Remove to represent changes in components for
|
||
a device:
|
||
|
||
1. ``Snapshot`` creates a device if it does not exist, and the same
|
||
for its components. This is all done in one ``Snapshot``.
|
||
2. If the device exists, it updates its component composition by
|
||
*adding* and *removing* them. If,
|
||
for example, this new Snasphot doesn't have a component, it means that
|
||
this component is not present anymore in the device, thus removing it
|
||
from it. Then we have that:
|
||
|
||
- Components that are added to the device: snapshot2.components -
|
||
snapshot1.components
|
||
- Components that are removed to the device: snapshot1.components -
|
||
snapshot2.components
|
||
|
||
When adding a component, there may be the case this component existed
|
||
before and it was inside another device. In such case, DeviceHub will
|
||
perform ``Remove`` on the old parent.
|
||
|
||
**Snapshots from Workbench**
|
||
|
||
When processing a device from the Workbench, this one performs a Snapshot
|
||
and then performs more events (like testings, benchmarking...).
|
||
|
||
There are two ways of sending this information. In an async way,
|
||
this is, submitting events as soon as Workbench performs then, or
|
||
submitting only one Snapshot event with all the other events embedded.
|
||
|
||
**Asynced**
|
||
|
||
The use case, which is represented in the ``test_workbench_phases``,
|
||
is as follows:
|
||
|
||
1. In **T1**, WorkbenchServer (as the middleware from Workbench and
|
||
Devicehub) submits:
|
||
|
||
- A ``Snapshot`` event with the required information to **synchronize**
|
||
and **rate** the device. This is:
|
||
|
||
- Identification information about the device and components
|
||
(S/N, model, physical characteristics...)
|
||
- ``Tags`` in a ``tags`` property in the ``device``.
|
||
- ``Rate`` in an ``events`` property in the ``device``.
|
||
- ``Benchmarks`` in an ``events`` property in each ``component``
|
||
or ``device``.
|
||
- ``TestDataStorage`` as in ``Benchmarks``.
|
||
- An ordered set of **expected events**, defining which are the next
|
||
events that Workbench will perform to the device in ideal
|
||
conditions (device doesn't fail, no Internet drop...).
|
||
|
||
Devicehub **syncs** the device with the database and perform the
|
||
``Benchmark``, the ``TestDataStorage``, and finally the ``Rate``.
|
||
This leaves the Snapshot **open** to wait for the next events
|
||
to come.
|
||
2. Assuming that we expect all events, in **T2**, WorkbenchServer
|
||
submits a ``StressTest`` with a ``snapshot`` field containing the
|
||
ID of the Snapshot in 1, and Devicehub links the event with such
|
||
``Snapshot``.
|
||
3. In **T3**, WorkbenchServer submits the ``Erase`` with the ``Snapshot``
|
||
and ``component`` IDs from 1, linking it to them. It repeats
|
||
this for all the erased data storage devices; **T3+Tn** being
|
||
*n* the erased data storage devices.
|
||
4. WorkbenchServer does like in 3. but for the event ``Install``,
|
||
finishing in **T3+Tn+Tx**, being *x* the number of data storage
|
||
devices with an OS installed into.
|
||
5. In **T3+Tn+Tx**, when all *expected events* have been performed,
|
||
Devicehub **closes** the ``Snapshot`` from 1.
|
||
|
||
**Synced**
|
||
|
||
Optionally, Devicehub understands receiving a ``Snapshot`` with all
|
||
the events in an ``events`` property inside each affected ``component``
|
||
or ``device``.
|
||
"""
|
||
uuid = Column(UUID(as_uuid=True), unique=True)
|
||
version = Column(StrictVersionType(STR_SM_SIZE), nullable=False)
|
||
software = Column(DBEnum(SnapshotSoftware), nullable=False)
|
||
elapsed = Column(Interval)
|
||
elapsed.comment = """
|
||
For Snapshots made with Workbench, the total amount of time
|
||
it took to complete.
|
||
"""
|
||
expected_events = Column(ArrayOfEnum(DBEnum(SnapshotExpectedEvents)))
|
||
|
||
def __str__(self) -> str:
|
||
return '{}. {} version {}.'.format(self.severity, self.software, self.version)
|
||
|
||
|
||
class Install(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The action of installing an Operative System to a data
|
||
storage unit.
|
||
"""
|
||
elapsed = Column(Interval, nullable=False)
|
||
address = Column(SmallInteger, check_range('address', 8, 256))
|
||
|
||
|
||
class SnapshotRequest(db.Model):
|
||
id = Column(UUID(as_uuid=True), ForeignKey(Snapshot.id), primary_key=True)
|
||
request = Column(JSON, nullable=False)
|
||
snapshot = relationship(Snapshot,
|
||
backref=backref('request',
|
||
lazy=True,
|
||
uselist=False,
|
||
cascade=CASCADE_OWN))
|
||
|
||
|
||
class Benchmark(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The act of gauging the performance of a device."""
|
||
elapsed = Column(Interval)
|
||
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Benchmark':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
|
||
class BenchmarkMixin:
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def id(cls):
|
||
return Column(UUID(as_uuid=True), ForeignKey(Test.id), primary_key=True)
|
||
|
||
|
||
class BenchmarkDataStorage(Benchmark):
|
||
"""Benchmarks the data storage unit reading and writing speeds."""
|
||
id = Column(UUID(as_uuid=True), ForeignKey(Benchmark.id), primary_key=True)
|
||
read_speed = Column(Float(decimal_return_scale=2), nullable=False)
|
||
write_speed = Column(Float(decimal_return_scale=2), nullable=False)
|
||
|
||
def __str__(self) -> str:
|
||
return 'Read: {} MB/s, write: {} MB/s'.format(self.read_speed, self.write_speed)
|
||
|
||
|
||
class BenchmarkWithRate(Benchmark):
|
||
"""The act of benchmarking a device with a single rate."""
|
||
id = Column(UUID(as_uuid=True), ForeignKey(Benchmark.id), primary_key=True)
|
||
rate = Column(Float, nullable=False)
|
||
|
||
def __str__(self) -> str:
|
||
return '{} points'.format(self.rate)
|
||
|
||
|
||
class BenchmarkProcessor(BenchmarkWithRate):
|
||
"""Benchmarks a processor by executing `BogoMips
|
||
<https://en.wikipedia.org/wiki/BogoMips>`_. Note that this is not
|
||
a reliable way of rating processors and we keep it for compatibility
|
||
purposes.
|
||
"""
|
||
pass
|
||
|
||
|
||
class BenchmarkProcessorSysbench(BenchmarkProcessor):
|
||
"""Benchmarks a processor by using the processor benchmarking
|
||
utility of `sysbench <https://github.com/akopytov/sysbench>`_.
|
||
"""
|
||
pass
|
||
|
||
|
||
class BenchmarkRamSysbench(BenchmarkWithRate):
|
||
"""Benchmarks a RAM by using the ram benchmarking
|
||
utility of `sysbench <https://github.com/akopytov/sysbench>`_.
|
||
"""
|
||
pass
|
||
|
||
|
||
class BenchmarkGraphicCard(BenchmarkWithRate):
|
||
pass
|
||
|
||
|
||
class Test(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The act of testing the physical condition of a device and its
|
||
components.
|
||
|
||
Testing errors and warnings are easily taken in
|
||
:attr:`ereuse_devicehub.resources.device.models.Device.working`.
|
||
"""
|
||
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Test':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
|
||
class TestMixin:
|
||
# noinspection PyMethodParameters
|
||
@declared_attr
|
||
def id(cls):
|
||
return Column(UUID(as_uuid=True), ForeignKey(Test.id), primary_key=True)
|
||
|
||
|
||
class MeasureBattery(TestMixin, Test):
|
||
"""A sample of the status of the battery.
|
||
|
||
Operative Systems keep a record of several aspects of a battery.
|
||
This is a sample of those.
|
||
"""
|
||
size = db.Column(db.Integer, nullable=False)
|
||
size.comment = """Maximum battery capacity, in mAh."""
|
||
voltage = db.Column(db.Integer, nullable=False)
|
||
voltage.comment = """The actual voltage of the battery, in mV."""
|
||
cycle_count = db.Column(db.Integer)
|
||
cycle_count.comment = """The number of full charges – discharges
|
||
cycles.
|
||
"""
|
||
health = db.Column(db.Enum(BatteryHealth))
|
||
health.comment = """The health of the Battery.
|
||
Only reported in Android.
|
||
"""
|
||
|
||
|
||
class TestDataStorage(TestMixin, Test):
|
||
"""
|
||
The act of testing the data storage.
|
||
|
||
Testing is done using the `S.M.A.R.T self test
|
||
<https://en.wikipedia.org/wiki/S.M.A.R.T.#Self-tests>`_. Note
|
||
that not all data storage units, specially some new PCIe ones, do not
|
||
support SMART testing.
|
||
|
||
The test takes to other SMART values indicators of the overall health
|
||
of the data storage.
|
||
"""
|
||
length = Column(DBEnum(TestDataStorageLength), nullable=False) # todo from type
|
||
status = Column(Unicode(), check_lower('status'), nullable=False)
|
||
lifetime = Column(Interval)
|
||
assessment = Column(Boolean)
|
||
reallocated_sector_count = Column(SmallInteger)
|
||
power_cycle_count = Column(SmallInteger)
|
||
_reported_uncorrectable_errors = Column('reported_uncorrectable_errors', Integer)
|
||
command_timeout = Column(Integer)
|
||
current_pending_sector_count = Column(SmallInteger)
|
||
offline_uncorrectable = Column(SmallInteger)
|
||
remaining_lifetime_percentage = Column(SmallInteger)
|
||
elapsed = Column(Interval, nullable=False)
|
||
|
||
def __init__(self, **kwargs) -> None:
|
||
super().__init__(**kwargs)
|
||
|
||
# Define severity
|
||
# As of https://www.backblaze.com/blog/hard-drive-smart-stats/ and
|
||
# https://www.backblaze.com/blog-smart-stats-2014-8.html
|
||
# We can guess some future disk failures by analyzing some SMART data.
|
||
if self.severity is None:
|
||
# Test finished successfully
|
||
if not self.assessment:
|
||
self.severity = Severity.Error
|
||
elif self.current_pending_sector_count and self.current_pending_sector_count > 40 \
|
||
or self.reallocated_sector_count and self.reallocated_sector_count > 10:
|
||
self.severity = Severity.Warning
|
||
|
||
def __str__(self) -> str:
|
||
t = inflection.humanize(self.status)
|
||
if self.lifetime:
|
||
t += ' with a lifetime of {:.1f} years.'.format(self.lifetime.days / 365)
|
||
t += self.description
|
||
return t
|
||
|
||
@property
|
||
def reported_uncorrectable_errors(self):
|
||
return self._reported_uncorrectable_errors
|
||
|
||
@reported_uncorrectable_errors.setter
|
||
def reported_uncorrectable_errors(self, value):
|
||
# We assume that a huge number is not meaningful
|
||
# So we keep it like this
|
||
self._reported_uncorrectable_errors = min(value, db.PSQL_INT_MAX)
|
||
|
||
|
||
class StressTest(TestMixin, Test):
|
||
"""The act of stressing (putting to the maximum capacity)
|
||
a device for an amount of minutes. If the device is not in great
|
||
condition won't probably survive such test.
|
||
"""
|
||
elapsed = Column(Interval, nullable=False)
|
||
|
||
@validates('elapsed')
|
||
def is_minute_and_bigger_than_1_minute(self, _, value: timedelta):
|
||
seconds = value.total_seconds()
|
||
assert not bool(seconds % 60)
|
||
assert seconds >= 60
|
||
return value
|
||
|
||
def __str__(self) -> str:
|
||
return '{}. Computing for {}'.format(self.severity, self.elapsed)
|
||
|
||
|
||
class TestAudio(TestMixin, Test):
|
||
"""
|
||
Test to check all this aspects related with audio functions, Manual Tests??
|
||
"""
|
||
_speaker = Column('speaker', Boolean)
|
||
_speaker.comment = """Whether the speaker works as expected."""
|
||
_microphone = Column('microphone', Boolean)
|
||
_microphone.comment = """Whether the microphone works as expected."""
|
||
|
||
@property
|
||
def speaker(self):
|
||
return self._speaker
|
||
|
||
@speaker.setter
|
||
def speaker(self, x):
|
||
self._speaker = x
|
||
self._check()
|
||
|
||
@property
|
||
def microphone(self):
|
||
return self._microphone
|
||
|
||
@microphone.setter
|
||
def microphone(self, x):
|
||
self._microphone = x
|
||
self._check()
|
||
|
||
def _check(self):
|
||
"""Sets ``severity`` to ``error`` if any of the variables fail."""
|
||
if not self._speaker or not self._microphone:
|
||
self.severity = Severity.Error
|
||
|
||
|
||
class TestConnectivity(TestMixin, Test):
|
||
"""Tests that the device can connect both physically and
|
||
wirelessly.
|
||
|
||
A failing test means that at least one connection of the device
|
||
is not working well. A comment should get into more detail.
|
||
"""
|
||
|
||
|
||
class TestCamera(TestMixin, Test):
|
||
"""Tests the working conditions of the camera of the device,
|
||
specially when taking pictures or recording video.
|
||
"""
|
||
|
||
|
||
class TestKeyboard(TestMixin, Test):
|
||
"""Whether the keyboard works correctly."""
|
||
|
||
|
||
class TestTrackpad(TestMixin, Test):
|
||
"""Whether the trackpad works correctly."""
|
||
|
||
|
||
class TestBios(TestMixin, Test):
|
||
"""Tests the working condition and grades the usability of the BIOS."""
|
||
bios_power_on = Column(Boolean)
|
||
bios_power_on.comment = """Whether there are no beeps or error
|
||
codes when booting up.
|
||
|
||
Reference: R2 standard page 23.
|
||
"""
|
||
access_range = Column(DBEnum(BiosAccessRange))
|
||
access_range.comment = """Difficulty to modify the boot menu.
|
||
|
||
This is used as an usability measure for accessing and modifying
|
||
a bios, specially as something as important as modifying the boot
|
||
menu."""
|
||
|
||
|
||
class VisualTest(TestMixin, Test):
|
||
"""The act of visually inspecting the appearance and functionality
|
||
of the device.
|
||
"""
|
||
appearance_range = Column(DBEnum(AppearanceRange))
|
||
appearance_range.comment = AppearanceRange.__doc__
|
||
functionality_range = Column(DBEnum(FunctionalityRange))
|
||
functionality_range.comment = FunctionalityRange.__doc__
|
||
labelling = Column(Boolean)
|
||
labelling.comment = """Whether there are tags to be removed."""
|
||
|
||
def __str__(self) -> str:
|
||
return super().__str__() + '. Appearance {} and functionality {}'.format(
|
||
self.appearance_range,
|
||
self.functionality_range
|
||
)
|
||
|
||
|
||
class Rate(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The act of computing a rate based on different categories"""
|
||
# todo jn: explain in each comment what the rate considers.
|
||
N = 2
|
||
"""The number of significant digits for rates.
|
||
Values are rounded and stored to it.
|
||
"""
|
||
|
||
_rating = Column('rating', Float(decimal_return_scale=N), check_range('rating', *R_POSITIVE))
|
||
_rating.comment = """The rating for the content."""
|
||
version = Column(StrictVersionType)
|
||
version.comment = """The version of the software."""
|
||
_appearance = Column('appearance',
|
||
Float(decimal_return_scale=N),
|
||
check_range('appearance', *R_NEGATIVE))
|
||
_appearance.comment = """"""
|
||
_functionality = Column('functionality',
|
||
Float(decimal_return_scale=N),
|
||
check_range('functionality', *R_NEGATIVE))
|
||
_functionality.comment = """"""
|
||
|
||
@property
|
||
def rating(self):
|
||
return self._rating
|
||
|
||
@rating.setter
|
||
def rating(self, x):
|
||
self._rating = round(max(x, 0), self.N)
|
||
|
||
@property
|
||
def appearance(self):
|
||
return self._appearance
|
||
|
||
@appearance.setter
|
||
def appearance(self, x):
|
||
self._appearance = round(x, self.N)
|
||
|
||
@property
|
||
def functionality(self):
|
||
return self._functionality
|
||
|
||
@functionality.setter
|
||
def functionality(self, x):
|
||
self._functionality = round(x, self.N)
|
||
|
||
@property
|
||
def rating_range(self) -> RatingRange:
|
||
""""""
|
||
return RatingRange.from_score(self.rating) if self.rating else None
|
||
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Rate':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
def __str__(self) -> str:
|
||
return '{} (v.{})'.format(self.rating_range, self.version)
|
||
|
||
@classmethod
|
||
def compute(cls, device) -> 'RateComputer':
|
||
raise NotImplementedError()
|
||
|
||
|
||
class RateMixin:
|
||
@declared_attr
|
||
def id(cls):
|
||
return Column(UUID(as_uuid=True), ForeignKey(Rate.id), primary_key=True)
|
||
|
||
|
||
class RateComputer(RateMixin, Rate):
|
||
"""The act of rating a computer."""
|
||
_processor = Column('processor',
|
||
Float(decimal_return_scale=Rate.N),
|
||
check_range('processor', *R_POSITIVE))
|
||
_processor.comment = """The rate of the Processor."""
|
||
_ram = Column('ram', Float(decimal_return_scale=Rate.N), check_range('ram', *R_POSITIVE))
|
||
_ram.comment = """The rate of the RAM."""
|
||
_data_storage = Column('data_storage',
|
||
Float(decimal_return_scale=Rate.N),
|
||
check_range('data_storage', *R_POSITIVE))
|
||
_data_storage.comment = """'Data storage rate, like HHD, SSD.'"""
|
||
_graphic_card = Column('graphic_card',
|
||
Float(decimal_return_scale=Rate.N),
|
||
check_range('graphic_card', *R_POSITIVE))
|
||
_graphic_card.comment = 'Graphic card rate.'
|
||
|
||
@property
|
||
def processor(self):
|
||
return self._processor
|
||
|
||
@processor.setter
|
||
def processor(self, x):
|
||
self._processor = round(x, self.N)
|
||
|
||
@property
|
||
def ram(self):
|
||
return self._ram
|
||
|
||
@ram.setter
|
||
def ram(self, x):
|
||
self._ram = round(x, self.N)
|
||
|
||
@property
|
||
def data_storage(self):
|
||
return self._data_storage
|
||
|
||
@data_storage.setter
|
||
def data_storage(self, x):
|
||
self._data_storage = round(x, self.N)
|
||
|
||
@property
|
||
def graphic_card(self):
|
||
return self._graphic_card
|
||
|
||
@graphic_card.setter
|
||
def graphic_card(self, x):
|
||
self._graphic_card = round(x, self.N)
|
||
|
||
@property
|
||
def data_storage_range(self):
|
||
return RatingRange.from_score(self.data_storage) if self.data_storage else None
|
||
|
||
@property
|
||
def ram_range(self):
|
||
return RatingRange.from_score(self.ram) if self.ram else None
|
||
|
||
@property
|
||
def processor_range(self):
|
||
return RatingRange.from_score(self.processor) if self.processor else None
|
||
|
||
@property
|
||
def graphic_card_range(self):
|
||
return RatingRange.from_score(self.graphic_card) if self.graphic_card else None
|
||
|
||
@classmethod
|
||
def compute(cls, device):
|
||
"""
|
||
The act of compute general computer rate
|
||
"""
|
||
from ereuse_devicehub.resources.event.rate.workbench.v1_0 import rate_algorithm
|
||
rate = rate_algorithm.compute(device)
|
||
price = None
|
||
with suppress(InvalidRangeForPrice): # We will have exception if range == VERY_LOW
|
||
price = EreusePrice(rate)
|
||
return rate, price
|
||
|
||
|
||
class Price(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""The act of setting a trading price for the device.
|
||
|
||
This does not imply that the device is ultimately traded for that
|
||
price. Use the :class:`.Sell` for that.
|
||
|
||
Devicehub automatically computes a price from ``AggregateRating``
|
||
events. As in a **Rate**, price can have **software** and **version**,
|
||
and there is an **official** price that is used to automatically
|
||
compute the price from an ``AggregateRating``. Only the official price
|
||
is computed from an ``AggregateRating``.
|
||
"""
|
||
SCALE = 4
|
||
ROUND = ROUND_HALF_EVEN
|
||
currency = Column(DBEnum(Currency), nullable=False)
|
||
currency.comment = """The currency of this price as for ISO 4217."""
|
||
price = Column(Numeric(precision=19, scale=SCALE), check_range('price', 0), nullable=False)
|
||
price.comment = """The value."""
|
||
software = Column(DBEnum(PriceSoftware))
|
||
software.comment = """The software used to compute this price,
|
||
if the price was computed automatically. This field is None
|
||
if the price has been manually set.
|
||
"""
|
||
version = Column(StrictVersionType)
|
||
version.comment = """The version of the software, or None."""
|
||
rating_id = Column(UUID(as_uuid=True), ForeignKey(Rate.id))
|
||
rating_id.comment = """The Rate used to auto-compute
|
||
this price, if it has not been set manually."""
|
||
rating = relationship(Rate,
|
||
backref=backref('price',
|
||
lazy=True,
|
||
cascade=CASCADE_OWN,
|
||
uselist=False),
|
||
primaryjoin=Rate.id == rating_id)
|
||
|
||
def __init__(self, *args, **kwargs) -> None:
|
||
if 'price' in kwargs:
|
||
assert isinstance(kwargs['price'], Decimal), 'Price must be a Decimal'
|
||
super().__init__(currency=kwargs.pop('currency', app.config['PRICE_CURRENCY']), *args,
|
||
**kwargs)
|
||
|
||
@classmethod
|
||
def to_price(cls, value: Union[Decimal, float], rounding=ROUND) -> Decimal:
|
||
"""Returns a Decimal value with the correct scale for Price.price."""
|
||
if isinstance(value, (float, int)):
|
||
value = Decimal(value)
|
||
# equation from marshmallow.fields.Decimal
|
||
return value.quantize(Decimal((0, (1,), -cls.SCALE)), rounding=rounding)
|
||
|
||
@declared_attr
|
||
def __mapper_args__(cls):
|
||
"""
|
||
Defines inheritance.
|
||
|
||
From `the guide <http://docs.sqlalchemy.org/en/latest/orm/
|
||
extensions/declarative/api.html
|
||
#sqlalchemy.ext.declarative.declared_attr>`_
|
||
"""
|
||
args = {POLYMORPHIC_ID: cls.t}
|
||
if cls.t == 'Price':
|
||
args[POLYMORPHIC_ON] = cls.type
|
||
return args
|
||
|
||
def __str__(self) -> str:
|
||
return '{0:0.2f} {1}'.format(self.price, self.currency)
|
||
|
||
|
||
class EreusePrice(Price):
|
||
"""The act of setting a price by guessing it using the eReuse.org
|
||
algorithm.
|
||
|
||
This algorithm states that the price is the use value of the device
|
||
(represented by its last :class:`.Rate`) multiplied by a constants
|
||
value agreed by a circuit or platform.
|
||
"""
|
||
MULTIPLIER = {
|
||
Desktop: 20,
|
||
Laptop: 30
|
||
}
|
||
|
||
class Type:
|
||
def __init__(self, percentage: float, price: Decimal) -> None:
|
||
# see https://stackoverflow.com/a/29651462 for the - 0.005
|
||
self.amount = EreusePrice.to_price(price * Decimal(percentage))
|
||
self.percentage = EreusePrice.to_price(price * Decimal(percentage))
|
||
self.percentage = round(percentage - 0.005, 2)
|
||
|
||
class Service:
|
||
REFURBISHER, PLATFORM, RETAILER = 0, 1, 2
|
||
STANDARD, WARRANTY2 = 'STD', 'WR2'
|
||
SCHEMA = {
|
||
Desktop: {
|
||
RatingRange.HIGH: {
|
||
STANDARD: (0.35125, 0.204375, 0.444375),
|
||
WARRANTY2: (0.47425, 0.275875, 0.599875)
|
||
},
|
||
RatingRange.MEDIUM: {
|
||
STANDARD: (0.385, 0.2558333333, 0.3591666667),
|
||
WARRANTY2: (0.539, 0.3581666667, 0.5028333333)
|
||
},
|
||
RatingRange.LOW: {
|
||
STANDARD: (0.5025, 0.30875, 0.18875),
|
||
},
|
||
},
|
||
Laptop: {
|
||
RatingRange.HIGH: {
|
||
STANDARD: (0.3469230769, 0.195, 0.4580769231),
|
||
WARRANTY2: (0.4522307692, 0.2632307692, 0.6345384615)
|
||
},
|
||
RatingRange.MEDIUM: {
|
||
STANDARD: (0.382, 0.1735, 0.4445),
|
||
WARRANTY2: (0.5108, 0.2429, 0.6463)
|
||
},
|
||
RatingRange.LOW: {
|
||
STANDARD: (0.4528571429, 0.2264285714, 0.3207142857),
|
||
}
|
||
}
|
||
}
|
||
SCHEMA[Server] = SCHEMA[Desktop]
|
||
|
||
def __init__(self, device, rating_range, role, price: Decimal) -> None:
|
||
cls = device.__class__ if device.__class__ != Server else Desktop
|
||
rate = self.SCHEMA[cls][rating_range]
|
||
self.standard = EreusePrice.Type(rate[self.STANDARD][role], price)
|
||
if self.WARRANTY2 in rate:
|
||
self.warranty2 = EreusePrice.Type(rate[self.WARRANTY2][role], price)
|
||
|
||
def __init__(self, rating: RateComputer, **kwargs) -> None:
|
||
if not rating.rating_range or rating.rating_range == RatingRange.VERY_LOW:
|
||
raise InvalidRangeForPrice()
|
||
# We pass ROUND_UP strategy so price is always greater than what refurbisher... amounts
|
||
price = self.to_price(rating.rating * self.MULTIPLIER[rating.device.__class__], ROUND_UP)
|
||
super().__init__(rating=rating,
|
||
device=rating.device,
|
||
price=price,
|
||
software=kwargs.pop('software', app.config['PRICE_SOFTWARE']),
|
||
version=kwargs.pop('version', app.config['PRICE_VERSION']),
|
||
**kwargs)
|
||
self._compute()
|
||
|
||
@orm.reconstructor
|
||
def _compute(self):
|
||
"""
|
||
Calculates eReuse.org prices when initializing the
|
||
instance from the price and other properties.
|
||
"""
|
||
self.refurbisher = self._service(self.Service.REFURBISHER)
|
||
self.retailer = self._service(self.Service.RETAILER)
|
||
self.platform = self._service(self.Service.PLATFORM)
|
||
if hasattr(self.refurbisher, 'warranty2'):
|
||
self.warranty2 = round(self.refurbisher.warranty2.amount
|
||
+ self.retailer.warranty2.amount
|
||
+ self.platform.warranty2.amount, 2)
|
||
|
||
def _service(self, role):
|
||
return self.Service(self.device, self.rating.rating_range, role, self.price)
|
||
|
||
|
||
class ToRepair(EventWithMultipleDevices):
|
||
"""Select a device to be repaired."""
|
||
|
||
|
||
class Repair(EventWithMultipleDevices):
|
||
"""Repair is the act of performing reparations.
|
||
|
||
If a repair without an error is performed,
|
||
it represents that the reparation has been successful.
|
||
"""
|
||
|
||
|
||
class ReadyToUse(EventWithMultipleDevices):
|
||
"""The device is ready to be used.
|
||
|
||
This involves greater preparation from the ``Prepare`` event,
|
||
and users should only use a device after this event is performed.
|
||
|
||
Users usually require devices with this event before shipping them
|
||
to costumers.
|
||
"""
|
||
|
||
|
||
class ToPrepare(EventWithMultipleDevices):
|
||
"""The device has been selected for preparation.
|
||
|
||
See Prepare for more info.
|
||
|
||
Usually **ToPrepare** is the next event done after registering the
|
||
device.
|
||
"""
|
||
pass
|
||
|
||
|
||
class Prepare(EventWithMultipleDevices):
|
||
"""Work has been performed to the device to a defined point of
|
||
acceptance.
|
||
|
||
Users using this event have to agree what is this point
|
||
of acceptance; for some is when the device just works, for others
|
||
when some testing has been performed.
|
||
"""
|
||
|
||
|
||
class Live(JoinedWithOneDeviceMixin, EventWithOneDevice):
|
||
"""A keep-alive from a device connected to the Internet with
|
||
information about its state (in the form of a ``Snapshot`` event)
|
||
and usage statistics.
|
||
"""
|
||
ip = Column(IP, nullable=False,
|
||
comment='The IP where the live was triggered.')
|
||
subdivision_confidence = Column(SmallInteger,
|
||
check_range('subdivision_confidence', 0, 100),
|
||
nullable=False)
|
||
subdivision = Column(DBEnum(Subdivision), nullable=False)
|
||
city = Column(Unicode(STR_SM_SIZE), check_lower('city'), nullable=False)
|
||
city_confidence = Column(SmallInteger,
|
||
check_range('city_confidence', 0, 100),
|
||
nullable=False)
|
||
isp = Column(Unicode(STR_SM_SIZE), check_lower('isp'), nullable=False)
|
||
organization = Column(Unicode(STR_SM_SIZE), check_lower('organization'))
|
||
organization_type = Column(Unicode(STR_SM_SIZE), check_lower('organization_type'))
|
||
|
||
@property
|
||
def country(self) -> Country:
|
||
return self.subdivision.country
|
||
# todo relate to snapshot
|
||
# todo testing
|
||
|
||
|
||
class Organize(JoinedTableMixin, EventWithMultipleDevices):
|
||
"""The act of manipulating/administering/supervising/controlling
|
||
one or more devices.
|
||
"""
|
||
|
||
|
||
class Reserve(Organize):
|
||
"""The act of reserving devices.
|
||
|
||
After this event is performed, the user is the **reservee** of the
|
||
devices. There can only be one non-cancelled reservation for
|
||
a device, and a reservation can only have one reservee.
|
||
"""
|
||
|
||
|
||
class CancelReservation(Organize):
|
||
"""The act of cancelling a reservation."""
|
||
|
||
|
||
class Trade(JoinedTableMixin, EventWithMultipleDevices):
|
||
"""Trade actions log the political exchange of devices between users.
|
||
Every time a trade event is performed, the old user looses its
|
||
political possession, for example ownership, in favor of another
|
||
user.
|
||
|
||
|
||
Performing trade events changes the *Trading* state of the
|
||
device —:class:`ereuse_devicehub.resources.device.states.Trading`.
|
||
|
||
This class and its inheritors
|
||
extend `Schema's Trade <http://schema.org/TradeAction>`_.
|
||
"""
|
||
shipping_date = Column(db.TIMESTAMP(timezone=True))
|
||
shipping_date.comment = """
|
||
When are the devices going to be ready for shipping?
|
||
"""
|
||
invoice_number = Column(CIText())
|
||
invoice_number.comment = """
|
||
The id of the invoice so they can be linked.
|
||
"""
|
||
price_id = Column(UUID(as_uuid=True), ForeignKey(Price.id))
|
||
price = relationship(Price,
|
||
backref=backref('trade', lazy=True, uselist=False),
|
||
primaryjoin=price_id == Price.id)
|
||
price_id.comment = """
|
||
The price set for this trade.
|
||
|
||
If no price is set it is supposed that the trade was
|
||
not payed, usual in donations.
|
||
"""
|
||
to_id = Column(UUID(as_uuid=True), ForeignKey(Agent.id), nullable=False)
|
||
# todo compute the org
|
||
to = relationship(Agent,
|
||
backref=backref('events_to',
|
||
lazy=True,
|
||
collection_class=OrderedSet,
|
||
order_by=lambda: Event.created),
|
||
primaryjoin=to_id == Agent.id)
|
||
to_comment = """
|
||
The agent that gets the device due this deal.
|
||
"""
|
||
confirms_id = Column(UUID(as_uuid=True), ForeignKey(Organize.id))
|
||
confirms = relationship(Organize,
|
||
backref=backref('confirmation', lazy=True, uselist=False),
|
||
primaryjoin=confirms_id == Organize.id)
|
||
confirms_id.comment = """
|
||
An organize action that this association confirms.
|
||
|
||
For example, a ``Sell`` or ``Rent``
|
||
can confirm a ``Reserve`` action.
|
||
"""
|
||
|
||
|
||
class Sell(Trade):
|
||
"""The act of taking money from a buyer in exchange of a device."""
|
||
|
||
|
||
class Donate(Trade):
|
||
"""The act of giving devices without compensation."""
|
||
|
||
|
||
class Rent(Trade):
|
||
"""The act of giving money in return for temporary use, but not
|
||
ownership, of a device.
|
||
"""
|
||
|
||
|
||
class CancelTrade(Trade):
|
||
"""The act of cancelling a `Sell`_, `Donate`_ or `Rent`_."""
|
||
# todo cancelTrade does not do anything
|
||
|
||
|
||
class ToDisposeProduct(Trade):
|
||
"""The act of setting a device for being disposed.
|
||
|
||
See :class:`.DisposeProduct`.
|
||
"""
|
||
# todo test this
|
||
|
||
|
||
class DisposeProduct(Trade):
|
||
"""The act of getting rid of devices by giving (selling, donating)
|
||
to another organization, like a waste manager.
|
||
|
||
|
||
See :class:`.ToDispose` and :class:`.DisposeProduct` for
|
||
disposing without trading the device. See :class:`.DisposeWaste`
|
||
and :class:`.Recover` for disposing in-house, this is,
|
||
without trading the device.
|
||
"""
|
||
# todo For usability purposes, users might not directly perform
|
||
# *DisposeProduct*, but this could automatically be done when
|
||
# performing :class:`.ToDispose` + :class:`.Receive` to a
|
||
# ``RecyclingCenter``.
|
||
|
||
|
||
class Receive(JoinedTableMixin, EventWithMultipleDevices):
|
||
"""The act of physically taking delivery of a device.
|
||
|
||
The receiver confirms that the devices have arrived, and thus,
|
||
they are the
|
||
:attr:`ereuse_devicehub.resources.device.models.Device.physical_possessor`.
|
||
|
||
This differs from :class:`.Trade` in that trading changes the
|
||
political possession. As an example, a transporter can *receive*
|
||
a device but it is not it's owner. After the delivery, the
|
||
transporter performs another *receive* to the final owner.
|
||
|
||
The receiver can optionally take a
|
||
:class:`ereuse_devicehub.resources.enums.ReceiverRole`.
|
||
"""
|
||
role = Column(DBEnum(ReceiverRole),
|
||
nullable=False,
|
||
default=ReceiverRole.Intermediary)
|
||
|
||
|
||
class Migrate(JoinedTableMixin, EventWithMultipleDevices):
|
||
"""Moves the devices to a new database/inventory. Devices cannot be
|
||
modified anymore at the previous database.
|
||
"""
|
||
other = Column(URL(), nullable=False)
|
||
other.comment = """
|
||
The URL of the Migrate in the other end.
|
||
"""
|
||
|
||
|
||
class MigrateTo(Migrate):
|
||
pass
|
||
|
||
|
||
class MigrateFrom(Migrate):
|
||
pass
|
||
|
||
|
||
# Listeners
|
||
# Listeners validate values and keep relationships synced
|
||
|
||
# The following listeners avoids setting values to events that
|
||
# do not make sense. For example, EraseBasic to a graphic card.
|
||
|
||
@event.listens_for(TestDataStorage.device, Events.set.__name__, propagate=True)
|
||
@event.listens_for(Install.device, Events.set.__name__, propagate=True)
|
||
@event.listens_for(EraseBasic.device, Events.set.__name__, propagate=True)
|
||
def validate_device_is_data_storage(target: Event, value: DataStorage, old_value, initiator):
|
||
"""Validates that the device for data-storage events is effectively a data storage."""
|
||
if value and not isinstance(value, DataStorage):
|
||
raise TypeError('{} must be a DataStorage but you passed {}'.format(initiator.impl, value))
|
||
|
||
|
||
@event.listens_for(BenchmarkRamSysbench.device, Events.set.__name__, propagate=True)
|
||
def events_not_for_components(target: Event, value: Device, old_value, initiator):
|
||
"""Validates events that cannot be performed to components."""
|
||
if isinstance(value, Component):
|
||
raise TypeError('{!r} cannot be performed to a component ({!r}).'.format(target, value))
|
||
|
||
|
||
# The following listeners keep relationships with device <-> components synced with the event
|
||
# So, if you add or remove devices from events these listeners will
|
||
# automatically add/remove the ``components`` and ``parent`` of such events
|
||
# See the tests for examples
|
||
|
||
@event.listens_for(EventWithOneDevice.device, Events.set.__name__, propagate=True)
|
||
def update_components_event_one(target: EventWithOneDevice, device: Device, __, ___):
|
||
"""
|
||
Syncs the :attr:`.Event.components` with the components in
|
||
:attr:`ereuse_devicehub.resources.device.models.Computer.components`.
|
||
"""
|
||
# For Add and Remove, ``components`` have different meanings
|
||
# see Event.components for more info
|
||
if not isinstance(target, (Add, Remove)):
|
||
target.components.clear()
|
||
if isinstance(device, Computer):
|
||
target.components |= device.components
|
||
|
||
|
||
@event.listens_for(EventWithMultipleDevices.devices, Events.init_collection.__name__,
|
||
propagate=True)
|
||
@event.listens_for(EventWithMultipleDevices.devices, Events.bulk_replace.__name__, propagate=True)
|
||
@event.listens_for(EventWithMultipleDevices.devices, Events.append.__name__, propagate=True)
|
||
def update_components_event_multiple(target: EventWithMultipleDevices,
|
||
value: Union[Set[Device], Device], _):
|
||
"""
|
||
Syncs the :attr:`.Event.components` with the components in
|
||
:attr:`ereuse_devicehub.resources.device.models.Computer.components`.
|
||
"""
|
||
target.components.clear()
|
||
devices = value if isinstance(value, Iterable) else {value}
|
||
for device in devices:
|
||
if isinstance(device, Computer):
|
||
target.components |= device.components
|
||
|
||
|
||
@event.listens_for(EventWithMultipleDevices.devices, Events.remove.__name__, propagate=True)
|
||
def remove_components_event_multiple(target: EventWithMultipleDevices, device: Device, __):
|
||
"""
|
||
Syncs the :attr:`.Event.components` with the components in
|
||
:attr:`ereuse_devicehub.resources.device.models.Computer.components`.
|
||
"""
|
||
target.components.clear()
|
||
for device in target.devices - {device}:
|
||
if isinstance(device, Computer):
|
||
target.components |= device.components
|
||
|
||
|
||
@event.listens_for(EraseBasic.device, Events.set.__name__, propagate=True)
|
||
@event.listens_for(Test.device, Events.set.__name__, propagate=True)
|
||
@event.listens_for(Install.device, Events.set.__name__, propagate=True)
|
||
@event.listens_for(Benchmark.device, Events.set.__name__, propagate=True)
|
||
def update_parent(target: Union[EraseBasic, Test, Install], device: Device, _, __):
|
||
"""
|
||
Syncs the :attr:`Event.parent` with the parent of the device.
|
||
"""
|
||
target.parent = None
|
||
if isinstance(device, Component):
|
||
target.parent = device.parent
|
||
|
||
|
||
class InvalidRangeForPrice(ValueError):
|
||
pass
|