336 lines
12 KiB
Python
336 lines
12 KiB
Python
import datetime
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import flask
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import marshmallow
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from ereuseapi.methods import API
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from flask import Response
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from flask import current_app as app
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from flask import g, render_template, request, session
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from flask.json import jsonify
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from flask_sqlalchemy import Pagination
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from marshmallow import fields
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from marshmallow import fields as f
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from marshmallow import validate as v
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from sqlalchemy.util import OrderedSet
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from ereuse_devicehub import auth
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from ereuse_devicehub.db import db
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from ereuse_devicehub.query import SearchQueryParser, things_response
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from ereuse_devicehub.resources import search
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from ereuse_devicehub.resources.action import models as actions
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from ereuse_devicehub.resources.action.models import Trade
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from ereuse_devicehub.resources.device import states
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from ereuse_devicehub.resources.device.models import Computer, Device, Manufacturer
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from ereuse_devicehub.resources.device.search import DeviceSearch
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from ereuse_devicehub.resources.lot.models import LotDeviceDescendants
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from ereuse_devicehub.resources.tag.model import Tag
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from ereuse_devicehub.teal import query
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from ereuse_devicehub.teal.cache import cache
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from ereuse_devicehub.teal.db import ResourceNotFound
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from ereuse_devicehub.teal.marshmallow import ValidationError
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from ereuse_devicehub.teal.resource import View
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class OfType(f.Str):
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def __init__(self, column: db.Column, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.column = column
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def _deserialize(self, value, attr, data):
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v = super()._deserialize(value, attr, data)
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return self.column.in_(app.resources[v].subresources_types)
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class RateQ(query.Query):
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rating = query.Between(actions.Rate._rating, f.Float())
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appearance = query.Between(actions.Rate._appearance, f.Float())
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functionality = query.Between(actions.Rate._functionality, f.Float())
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class TagQ(query.Query):
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id = query.Or(query.ILike(Tag.id), required=True)
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org = query.ILike(Tag.org)
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class LotQ(query.Query):
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id = query.Or(query.Equal(LotDeviceDescendants.ancestor_lot_id, fields.UUID()))
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class Filters(query.Query):
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id = query.Or(query.Equal(Device.id, fields.Integer()))
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devicehub_id = query.Or(query.ILike(Device.devicehub_id))
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type = query.Or(OfType(Device.type))
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model = query.ILike(Device.model)
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manufacturer = query.ILike(Device.manufacturer)
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serialNumber = query.ILike(Device.serial_number)
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# todo test query for rating (and possibly other filters)
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rating = query.Join(
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(Device.id == actions.ActionWithOneDevice.device_id)
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& (actions.ActionWithOneDevice.id == actions.Rate.id),
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RateQ,
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)
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tag = query.Join(Device.id == Tag.device_id, TagQ)
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# todo This part of the query is really slow
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# And forces usage of distinct, as it returns many rows
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# due to having multiple paths to the same
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lot = query.Join((Device.id == LotDeviceDescendants.device_id), LotQ)
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class Sorting(query.Sort):
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id = query.SortField(Device.id)
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created = query.SortField(Device.created)
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updated = query.SortField(Device.updated)
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class DeviceView(View):
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QUERY_PARSER = SearchQueryParser()
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class FindArgs(marshmallow.Schema):
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search = f.Str()
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filter = f.Nested(Filters, missing=[])
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sort = f.Nested(Sorting, missing=[Device.id.asc()])
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page = f.Integer(validate=v.Range(min=1), missing=1)
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unassign = f.Integer(validate=v.Range(min=0, max=1), missing=0)
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def get(self, id):
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"""Devices view
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---
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description: Gets a device or multiple devices.
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parameters:
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- name: id
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type: integer
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in: path}
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description: The identifier of the device.
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responses:
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200:
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description: The device or devices.
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"""
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return super().get(id)
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def patch(self, id):
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dev = Device.query.filter_by(id=id, owner_id=g.user.id, active=True).one()
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if isinstance(dev, Computer):
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resource_def = app.resources['Computer']
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# TODO check how to handle the 'actions_one'
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patch_schema = resource_def.SCHEMA(
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only=['transfer_state', 'actions_one'], partial=True
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)
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json = request.get_json(schema=patch_schema)
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# TODO check how to handle the 'actions_one'
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json.pop('actions_one')
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if not dev:
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raise ValueError('Device non existent')
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for key, value in json.items():
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setattr(dev, key, value)
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db.session.commit()
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return Response(status=204)
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raise ValueError('Cannot patch a non computer')
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def one(self, id: str):
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"""Gets one device."""
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if not request.authorization:
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return self.one_public(id)
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else:
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return self.one_private(id)
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def one_public(self, id: int):
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devices = Device.query.filter_by(devicehub_id=id, active=True).all()
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if not devices:
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devices = [Device.query.filter_by(dhid_bk=id, active=True).one()]
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device = devices[0]
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abstract = None
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if device.binding:
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return flask.redirect(device.public_link)
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if device.is_abstract() == 'Twin':
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abstract = device.placeholder.binding
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placeholder = device.binding or device.placeholder
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device_abstract = placeholder and placeholder.binding or device
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device_real = placeholder and placeholder.device or device
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return render_template(
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'devices/layout.html',
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placeholder=placeholder,
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device=device,
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device_abstract=device_abstract,
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device_real=device_real,
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states=states,
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abstract=abstract,
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user=g.user,
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)
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@auth.Auth.requires_auth
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def one_private(self, id: str):
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device = Device.query.filter_by(
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devicehub_id=id, owner_id=g.user.id, active=True
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).first()
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if not device:
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return self.one_public(id)
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return self.schema.jsonify(device)
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@auth.Auth.requires_auth
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# @cache(datetime.timedelta(minutes=1))
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def find(self, args: dict):
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"""Gets many devices."""
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# Compute query
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query = self.query(args)
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devices = query.paginate(page=args['page'], per_page=30) # type: Pagination
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return things_response(
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self.schema.dump(devices.items, many=True, nested=1),
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devices.page,
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devices.per_page,
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devices.total,
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devices.prev_num,
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devices.next_num,
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)
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def query(self, args):
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trades = Trade.query.filter(
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(Trade.user_from == g.user) | (Trade.user_to == g.user)
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).distinct()
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trades_dev_ids = {d.id for t in trades for d in t.devices}
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query = (
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Device.query.filter(Device.active == True)
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.filter((Device.owner_id == g.user.id) | (Device.id.in_(trades_dev_ids)))
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.distinct()
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)
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unassign = args.get('unassign', None)
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search_p = args.get('search', None)
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if search_p:
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properties = DeviceSearch.properties
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tags = DeviceSearch.tags
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devicehub_ids = DeviceSearch.devicehub_ids
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query = (
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query.join(DeviceSearch)
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.filter(
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search.Search.match(properties, search_p)
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| search.Search.match(tags, search_p)
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| search.Search.match(devicehub_ids, search_p)
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)
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.order_by(
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search.Search.rank(properties, search_p)
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+ search.Search.rank(tags, search_p)
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+ search.Search.rank(devicehub_ids, search_p)
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)
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)
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if unassign:
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subquery = LotDeviceDescendants.query.with_entities(
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LotDeviceDescendants.device_id
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)
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query = query.filter(Device.id.notin_(subquery))
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return query.filter(*args['filter']).order_by(*args['sort'])
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class DeviceMergeView(View):
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"""View for merging two devices
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Ex. ``device/<dev1_id>/merge/<dev2_id>``.
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"""
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def post(self, dev1_id: int, dev2_id: int):
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device = self.merge_devices(dev1_id, dev2_id)
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ret = self.schema.jsonify(device)
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ret.status_code = 201
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db.session.commit()
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return ret
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@auth.Auth.requires_auth
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def merge_devices(self, dev1_id: int, dev2_id: int) -> Device:
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"""Merge the current device with `with_device` (dev2_id) by
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adding all `with_device` actions under the current device, (dev1_id).
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This operation is highly costly as it forces refreshing
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many models in session.
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"""
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# base_device = Device.query.filter_by(id=dev1_id, owner_id=g.user.id).one()
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self.base_device = Device.query.filter_by(id=dev1_id, owner_id=g.user.id).one()
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self.with_device = Device.query.filter_by(id=dev2_id, owner_id=g.user.id).one()
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if self.base_device.allocated or self.with_device.allocated:
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# Validation than any device is allocated
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msg = 'The device is allocated, please deallocated before merge.'
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raise ValidationError(msg)
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if not self.base_device.type == self.with_device.type:
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# Validation than we are speaking of the same kind of devices
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raise ValidationError('The devices is not the same type.')
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# Adding actions of self.with_device
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with_actions_one = [
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a
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for a in self.with_device.actions
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if isinstance(a, actions.ActionWithOneDevice)
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]
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with_actions_multiple = [
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a
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for a in self.with_device.actions
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if isinstance(a, actions.ActionWithMultipleDevices)
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]
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# Moving the tags from `with_device` to `base_device`
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# Union of tags the device had plus the (potentially) new ones
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self.base_device.tags.update([x for x in self.with_device.tags])
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self.with_device.tags.clear() # We don't want to add the transient dummy tags
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db.session.add(self.with_device)
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# Moving the actions from `with_device` to `base_device`
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for action in with_actions_one:
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if action.parent:
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action.parent = self.base_device
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else:
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self.base_device.actions_one.add(action)
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for action in with_actions_multiple:
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if action.parent:
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action.parent = self.base_device
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else:
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self.base_device.actions_multiple.add(action)
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# Keeping the components of with_device
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components = OrderedSet(c for c in self.with_device.components)
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self.base_device.components = components
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# Properties from with_device
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self.merge()
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db.session().add(self.base_device)
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db.session().final_flush()
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return self.base_device
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def merge(self):
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"""Copies the physical properties of the base_device to the with_device.
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This method mutates base_device.
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"""
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for field_name, value in self.with_device.physical_properties.items():
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if value is not None:
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setattr(self.base_device, field_name, value)
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self.base_device.hid = self.with_device.hid
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self.base_device.set_hid()
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class ManufacturerView(View):
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class FindArgs(marshmallow.Schema):
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search = marshmallow.fields.Str(
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required=True,
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# Disallow like operators
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validate=lambda x: '%' not in x and '_' not in x,
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)
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@cache(datetime.timedelta(days=1))
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def find(self, args: dict):
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search = args['search']
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manufacturers = Manufacturer.query.filter(
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Manufacturer.name.ilike(search + '%')
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).paginate(
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page=1, per_page=6
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) # type: Pagination
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return jsonify(
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items=app.resources[Manufacturer.t].schema.dump(
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manufacturers.items, many=True, nested=1
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)
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)
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