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""" |
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byceps.services.attendance.service |
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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:Copyright: 2006-2019 Jochen Kupperschmidt |
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""" |
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from collections import defaultdict |
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from typing import Dict, Iterable, List, Optional, Set, Tuple |
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from ...database import db, paginate, Pagination |
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from ...typing import PartyID, UserID |
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from ..ticketing.models.ticket import Category as DbCategory, Ticket as DbTicket |
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from ..user.models.user import User as DbUser |
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from .transfer.models import Attendee, AttendeeTicket |
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def get_attendees_paginated( |
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party_id: PartyID, |
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page: int, |
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per_page: int, |
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*, |
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search_term: Optional[str] = None, |
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) -> Pagination: |
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"""Return the party's ticket users with tickets and seats.""" |
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users_paginated = _get_users_paginated( |
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party_id, page, per_page, search_term=search_term |
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) |
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users = users_paginated.items |
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user_ids = {u.id for u in users} |
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tickets = _get_tickets_for_users(party_id, user_ids) |
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tickets_by_user_id = _index_tickets_by_user_id(tickets) |
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attendees = list(_generate_attendees(users, tickets_by_user_id)) |
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users_paginated.items = attendees |
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return users_paginated |
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def _get_users_paginated( |
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party_id: PartyID, |
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page: int, |
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per_page: int, |
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*, |
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search_term: Optional[str] = None, |
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) -> Pagination: |
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# Drop revoked tickets here already to avoid users without tickets |
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# being included in the list. |
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query = DbUser.query \ |
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.distinct() \ |
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.options( |
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db.load_only('id', 'screen_name', 'deleted'), |
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db.joinedload('avatar_selection').joinedload('avatar'), |
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) \ |
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.join(DbTicket, DbTicket.used_by_id == DbUser.id) \ |
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.filter(DbTicket.revoked == False) \ |
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.join(DbCategory).filter(DbCategory.party_id == party_id) |
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if search_term: |
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query = query \ |
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.filter(DbUser.screen_name.ilike(f'%{search_term}%')) |
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query = query \ |
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.order_by(db.func.lower(DbUser.screen_name)) |
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return paginate(query, page, per_page) |
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def _get_tickets_for_users( |
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party_id: PartyID, user_ids: Set[UserID] |
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) -> List[DbTicket]: |
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return DbTicket.query \ |
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.options( |
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db.joinedload('category'), |
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db.joinedload('occupied_seat').joinedload('area'), |
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) \ |
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.for_party(party_id) \ |
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.filter(DbTicket.used_by_id.in_(user_ids)) \ |
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.filter(DbTicket.revoked == False) \ |
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.all() |
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def _index_tickets_by_user_id( |
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tickets: Iterable[DbTicket] |
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) -> Dict[UserID, Set[DbTicket]]: |
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tickets_by_user_id = defaultdict(set) |
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for ticket in tickets: |
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tickets_by_user_id[ticket.used_by_id].add(ticket) |
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return tickets_by_user_id |
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def _generate_attendees( |
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users: Iterable[DbUser], tickets_by_user_id: Dict[UserID, Set[DbTicket]] |
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) -> Iterable[Attendee]: |
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for user in users: |
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tickets = tickets_by_user_id[user.id] |
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attendee_tickets = _to_attendee_tickets(tickets) |
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yield Attendee(user, attendee_tickets) |
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def _to_attendee_tickets(tickets: Iterable[DbTicket]) -> List[AttendeeTicket]: |
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attendee_tickets = [ |
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AttendeeTicket(t.occupied_seat, t.user_checked_in) for t in tickets |
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] |
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attendee_tickets.sort(key=_get_attendee_ticket_sort_key) |
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return attendee_tickets |
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def _get_attendee_ticket_sort_key( |
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attendee_ticket: AttendeeTicket |
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) -> Tuple[bool, str, bool]: |
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return ( |
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# List tickets with occupied seat first. |
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attendee_ticket.seat is None, |
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# Sort by seat label. |
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attendee_ticket.seat.label if attendee_ticket.seat else None, |
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# List checked in tickets first. |
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not attendee_ticket.checked_in, |
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) |
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byceps /
byceps
