293 lines
11 KiB
Python
293 lines
11 KiB
Python
import csv
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import datetime
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from io import StringIO
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from collections import OrderedDict
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import marshmallow
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from flask import current_app as app, render_template, request, make_response
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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, fields as f, validate as v
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from sqlalchemy.orm import aliased
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from teal import query
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from teal.cache import cache
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from teal.resource import View
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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.resources import search
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# from ereuse_devicehub.resources.device.definitions import ComponentDef
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from ereuse_devicehub.resources.device.models import Component, Computer, Device, Manufacturer, \
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RamModule, Processor, DataStorage, GraphicCard, Motherboard, Display, NetworkAdapter, SoundCard
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from ereuse_devicehub.resources.device.search import DeviceSearch
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from ereuse_devicehub.resources.event.models import Rate, Event
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from ereuse_devicehub.resources.lot.models import Lot, LotDevice
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from ereuse_devicehub.resources.tag.model import Tag
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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(Rate.rating, f.Float())
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appearance = query.Between(Rate.appearance, f.Float())
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functionality = query.Between(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.QueryField(Lot.descendantsq, fields.UUID()))
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class Filters(query.Query):
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_parent = aliased(Computer)
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_device_inside_lot = (Device.id == LotDevice.device_id) & (Lot.id == LotDevice.lot_id)
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_component_inside_lot_through_parent = (Device.id == Component.id) \
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& (Component.parent_id == _parent.id) \
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& (_parent.id == LotDevice.device_id) \
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& (Lot.id == LotDevice.lot_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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rating = query.Join(Device.id == Rate.device_id, RateQ)
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tag = query.Join(Device.id == Tag.device_id, TagQ)
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lot = query.Join(_device_inside_lot | _component_inside_lot_through_parent, 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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class DeviceView(View):
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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=[])
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page = f.Integer(validate=v.Range(min=1), missing=1)
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def get(self, id):
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"""
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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 one(self, id: int):
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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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device = Device.query.filter_by(id=id).one()
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return render_template('devices/layout.html', device=device)
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@auth.Auth.requires_auth
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def one_private(self, id: int):
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device = Device.query.filter_by(id=id).one()
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return self.schema.jsonify(device)
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@auth.Auth.requires_auth
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def find(self, args: dict):
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"""Gets many devices."""
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search_p = args.get('search', None)
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query = Device.query
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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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query = query.join(DeviceSearch).filter(
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search.Search.match(properties, search_p) | search.Search.match(tags, search_p)
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).order_by(
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search.Search.rank(properties, search_p) + search.Search.rank(tags, search_p)
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)
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query = query.filter(*args['filter']).order_by(*args['sort'])
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if 'text/csv' in request.accept_mimetypes:
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return self.generate_post_csv(query)
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else:
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devices = query.paginate(page=args['page'], per_page=30) # type: Pagination
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ret = {
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'items': self.schema.dump(devices.items, many=True, nested=1),
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# todo pagination should be in Header like github
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# https://developer.github.com/v3/guides/traversing-with-pagination/
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'pagination': {
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'page': devices.page,
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'perPage': devices.per_page,
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'total': devices.total,
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'previous': devices.prev_num,
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'next': devices.next_num
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},
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'url': request.path
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}
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return jsonify(ret)
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def generate_post_csv(self, query):
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"""
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Get device query and put information in csv format
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:param query:
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:return:
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"""
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data = StringIO()
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cw = csv.writer(data)
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first = True
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for device in query:
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d = DeviceRow(device)
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if first:
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cw.writerow(name for name in d.keys())
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first = False
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cw.writerow(v for v in d.values())
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output = make_response(data.getvalue())
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output.headers['Content-Disposition'] = 'attachment; filename=export.csv'
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output.headers['Content-type'] = 'text/csv'
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return output
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class DeviceRow(OrderedDict):
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NUMS = {
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Display.t: 1,
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Processor.t: 2,
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GraphicCard.t: 2,
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Motherboard.t: 1,
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NetworkAdapter.t: 2,
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SoundCard.t: 2
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}
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def __init__(self, device: Device) -> None:
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super().__init__()
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self.device = device
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# General information about device
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self['Type'] = device.t
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if isinstance(device, Computer):
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self['Chassis'] = device.chassis
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self['Tag 1'] = self['Tag 2'] = self['Tag 3'] = ''
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for i, tag in zip(range(1, 3), device.tags):
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self['Tag {}'.format(i)] = format(tag)
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self['Serial Number'] = device.serial_number
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self['Model'] = device.model
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self['Manufacturer'] = device.manufacturer
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# self['State'] = device.last_event_of()
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self['Price'] = device.price
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self['Registered in'] = format(device.created, '%c')
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if isinstance(device, Computer):
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self['Processor'] = device.processor_model
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self['RAM (GB)'] = device.ram_size
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self['Storage Size (MB)'] = device.data_storage_size
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rate = device.rate
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if rate:
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self['Rate'] = rate.rating
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self['Range'] = rate.rating_range
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self['Processor Rate'] = rate.processor
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self['Processor Range'] = rate.workbench.processor_range
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self['RAM Rate'] = rate.ram
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self['RAM Range'] = rate.workbench.ram_range
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self['Data Storage Rate'] = rate.data_storage
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self['Data Storage Range'] = rate.workbench.data_storage_range
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# More specific information about components
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if isinstance(device, Computer):
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self.components()
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def components(self):
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"""
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Function to get all components information of a device
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"""
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assert isinstance(self.device, Computer)
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# todo put an input specific order (non alphabetic)
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for type in sorted(app.resources[Component.t].subresources_types): # type: str
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max = self.NUMS.get(type, 4)
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if type not in ['Component', 'HardDrive', 'SolidStateDrive']:
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i = 1
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for component in (r for r in self.device.components if r.type == type):
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self.fill_component(type, i, component)
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i += 1
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if i > max:
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break
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while i <= max:
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self.fill_component(type, i)
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i += 1
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def fill_component(self, type, i, component=None):
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"""
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Function to put specific information of components in OrderedDict (csv)
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:param type: type of component
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:param component: device.components
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"""
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self['{} {}'.format(type, i)] = format(component) if component else ''
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self['{} {} Manufacturer'.format(type, i)] = component.serial_number if component else ''
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self['{} {} Model'.format(type, i)] = component.serial_number if component else ''
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self['{} {} Serial Number'.format(type, i)] = component.serial_number if component else ''
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""" Particular fields for component GraphicCard """
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if isinstance(component, GraphicCard):
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self['{} {} Memory (MB)'.format(type, i)] = component.memory
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""" Particular fields for component DataStorage.t -> (HardDrive, SolidStateDrive) """
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if isinstance(component, DataStorage):
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self['{} {} Size (MB)'.format(type, i)] = component.size
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self['{} {} Privacy'.format(type, i)] = component.privacy
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# todo decide if is relevant more info about Motherboard
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""" Particular fields for component Motherboard """
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if isinstance(component, Motherboard):
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self['{} {} Slots'.format(type, i)] = component.slots
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""" Particular fields for component Processor """
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if isinstance(component, Processor):
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self['{} {} Number of cores'.format(type, i)] = component.cores
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self['{} {} Speed (GHz)'.format(type, i)] = component.speed
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""" Particular fields for component RamModule """
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if isinstance(component, RamModule):
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self['{} {} Size (MB)'.format(type, i)] = component.size
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self['{} {} Speed (MHz)'.format(type, i)] = component.speed
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self['{} {} Size'.format(type, i)] = component.size
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# todo add Display size, ...
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# todo add NetworkAdapter speedLink?
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# todo add some ComputerAccessories
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class ManufacturerView(View):
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class FindArgs(marshmallow.Schema):
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search = marshmallow.fields.Str(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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@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 \
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.filter(Manufacturer.name.ilike(search + '%')) \
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.paginate(page=1, per_page=6) # 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,
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many=True,
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nested=1
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)
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)
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