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