mirror of
https://gitlab.crans.org/bde/nk20
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212 lines
9.4 KiB
Python
212 lines
9.4 KiB
Python
# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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from django.conf import settings
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from django.db.models import Q
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from django.core.exceptions import ValidationError
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from django_filters.rest_framework import DjangoFilterBackend
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from rest_framework.filters import OrderingFilter, SearchFilter
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from rest_framework import viewsets
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from rest_framework.response import Response
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from rest_framework import status
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from api.viewsets import ReadProtectedModelViewSet, ReadOnlyProtectedModelViewSet
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from note_kfet.middlewares import get_current_session
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from permission.backends import PermissionBackend
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from .serializers import NotePolymorphicSerializer, AliasSerializer, ConsumerSerializer,\
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TemplateCategorySerializer, TransactionTemplateSerializer, TransactionPolymorphicSerializer
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from ..models.notes import Note, Alias, NoteUser, NoteClub, NoteSpecial
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from ..models.transactions import TransactionTemplate, Transaction, TemplateCategory
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class NotePolymorphicViewSet(ReadProtectedModelViewSet):
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"""
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REST API View set.
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The djangorestframework plugin will get all `Note` objects (with polymorhism),
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serialize it to JSON with the given serializer,
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then render it on /api/note/note/
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"""
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queryset = Note.objects.order_by('id')
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serializer_class = NotePolymorphicSerializer
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filter_backends = [DjangoFilterBackend, SearchFilter, OrderingFilter]
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filterset_fields = ['alias__name', 'polymorphic_ctype', 'is_active', 'balance', 'last_negative', 'created_at', ]
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search_fields = ['$alias__normalized_name', '$alias__name', '$polymorphic_ctype__model',
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'$noteuser__user__last_name', '$noteuser__user__first_name', '$noteuser__user__email',
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'$noteuser__user__email', '$noteclub__club__email', ]
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ordering_fields = ['alias__name', 'alias__normalized_name', 'balance', 'created_at', ]
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def get_queryset(self):
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"""
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Parse query and apply filters.
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:return: The filtered set of requested notes
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"""
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user = self.request.user
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get_current_session().setdefault("permission_mask", 42)
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queryset = self.queryset.filter(PermissionBackend.filter_queryset(user, Note, "view")
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| PermissionBackend.filter_queryset(user, NoteUser, "view")
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| PermissionBackend.filter_queryset(user, NoteClub, "view")
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| PermissionBackend.filter_queryset(user, NoteSpecial, "view")).distinct()
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alias = self.request.query_params.get("alias", ".*")
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queryset = queryset.filter(
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Q(alias__name__iregex="^" + alias)
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| Q(alias__normalized_name__iregex="^" + Alias.normalize(alias))
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| Q(alias__normalized_name__iregex="^" + alias.lower())
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)
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return queryset.order_by("id")
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class AliasViewSet(ReadProtectedModelViewSet):
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"""
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REST API View set.
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The djangorestframework plugin will get all `Alias` objects, serialize it to JSON with the given serializer,
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then render it on /api/aliases/
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"""
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queryset = Alias.objects
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serializer_class = AliasSerializer
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filter_backends = [SearchFilter, DjangoFilterBackend, OrderingFilter]
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search_fields = ['$normalized_name', '$name', '$note__polymorphic_ctype__model', ]
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filterset_fields = ['note', 'note__noteuser__user', 'note__noteclub__club', 'note__polymorphic_ctype__model', ]
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ordering_fields = ['name', 'normalized_name', ]
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def get_serializer_class(self):
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serializer_class = self.serializer_class
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if self.request.method in ['PUT', 'PATCH']:
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# alias owner cannot be change once establish
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setattr(serializer_class.Meta, 'read_only_fields', ('note',))
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return serializer_class
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def destroy(self, request, *args, **kwargs):
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instance = self.get_object()
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try:
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self.perform_destroy(instance)
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except ValidationError as e:
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return Response({e.code: e.message}, status.HTTP_400_BAD_REQUEST)
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return Response(status=status.HTTP_204_NO_CONTENT)
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def get_queryset(self):
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"""
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Parse query and apply filters.
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:return: The filtered set of requested aliases
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"""
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queryset = super().get_queryset().distinct()
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alias = self.request.query_params.get("alias", None)
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if alias:
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queryset = queryset.filter(
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name__iregex="^" + alias
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).union(
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queryset.filter(
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Q(normalized_name__iregex="^" + Alias.normalize(alias))
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& ~Q(name__iregex="^" + alias)
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),
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all=True).union(
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queryset.filter(
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Q(normalized_name__iregex="^" + alias.lower())
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& ~Q(normalized_name__iregex="^" + Alias.normalize(alias))
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& ~Q(name__iregex="^" + alias)
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),
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all=True)
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return queryset.order_by("name")
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class ConsumerViewSet(ReadOnlyProtectedModelViewSet):
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queryset = Alias.objects
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serializer_class = ConsumerSerializer
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filter_backends = [SearchFilter, OrderingFilter, DjangoFilterBackend]
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search_fields = ['$normalized_name', '$name', '$note__polymorphic_ctype__model', ]
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filterset_fields = ['note', 'note__noteuser__user', 'note__noteclub__club', 'note__polymorphic_ctype__model', ]
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ordering_fields = ['name', 'normalized_name', ]
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def get_queryset(self):
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"""
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Parse query and apply filters.
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:return: The filtered set of requested aliases
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"""
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queryset = super().get_queryset().distinct()
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# Sqlite doesn't support ORDER BY in subqueries
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queryset = queryset.order_by("name") \
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if settings.DATABASES[queryset.db]["ENGINE"] == 'django.db.backends.postgresql' else queryset
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alias = self.request.query_params.get("alias", None)
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queryset = queryset.prefetch_related('note')
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if alias:
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# We match first an alias if it is matched without normalization,
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# then if the normalized pattern matches a normalized alias.
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queryset = queryset.filter(
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name__iregex="^" + alias
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).union(
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queryset.filter(
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Q(normalized_name__iregex="^" + Alias.normalize(alias))
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& ~Q(name__iregex="^" + alias)
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),
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all=True).union(
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queryset.filter(
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Q(normalized_name__iregex="^" + alias.lower())
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& ~Q(normalized_name__iregex="^" + Alias.normalize(alias))
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& ~Q(name__iregex="^" + alias)
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),
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all=True)
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queryset = queryset if settings.DATABASES[queryset.db]["ENGINE"] == 'django.db.backends.postgresql' \
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else queryset.order_by("name")
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return queryset.distinct()
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class TemplateCategoryViewSet(ReadProtectedModelViewSet):
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"""
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REST API View set.
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The djangorestframework plugin will get all `TemplateCategory` objects, serialize it to JSON with the given serializer,
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then render it on /api/note/transaction/category/
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"""
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queryset = TemplateCategory.objects.order_by('name')
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serializer_class = TemplateCategorySerializer
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filter_backends = [DjangoFilterBackend, SearchFilter]
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filterset_fields = ['name', 'templates', 'templates__name']
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search_fields = ['$name', '$templates__name', ]
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class TransactionTemplateViewSet(viewsets.ModelViewSet):
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"""
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REST API View set.
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The djangorestframework plugin will get all `TransactionTemplate` objects, serialize it to JSON with the given serializer,
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then render it on /api/note/transaction/template/
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"""
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queryset = TransactionTemplate.objects.order_by('name')
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serializer_class = TransactionTemplateSerializer
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filter_backends = [SearchFilter, DjangoFilterBackend, OrderingFilter]
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filterset_fields = ['name', 'amount', 'display', 'category', 'category__name', ]
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search_fields = ['$name', '$category__name', ]
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ordering_fields = ['amount', ]
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class TransactionViewSet(ReadProtectedModelViewSet):
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"""
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REST API View set.
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The djangorestframework plugin will get all `Transaction` objects, serialize it to JSON with the given serializer,
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then render it on /api/note/transaction/transaction/
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"""
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queryset = Transaction.objects.order_by('-created_at')
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serializer_class = TransactionPolymorphicSerializer
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filter_backends = [SearchFilter, DjangoFilterBackend, OrderingFilter]
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filterset_fields = ['source', 'source_alias', 'source__alias__name', 'source__alias__normalized_name',
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'destination', 'destination_alias', 'destination__alias__name',
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'destination__alias__normalized_name', 'quantity', 'polymorphic_ctype', 'amount',
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'created_at', 'valid', 'invalidity_reason', ]
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search_fields = ['$reason', '$source_alias', '$source__alias__name', '$source__alias__normalized_name',
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'$destination_alias', '$destination__alias__name', '$destination__alias__normalized_name',
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'$invalidity_reason', ]
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ordering_fields = ['created_at', 'amount', ]
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def get_queryset(self):
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user = self.request.user
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get_current_session().setdefault("permission_mask", 42)
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return self.model.objects.filter(PermissionBackend.filter_queryset(user, self.model, "view"))\
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.order_by("created_at", "id")
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