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pythonannotation-tooldatasetsactive-learningtext-annotationdatasetnatural-language-processingdata-labelingmachine-learning
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58 lines
2.0 KiB
58 lines
2.0 KiB
import random
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from django.db.models import F
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from django.shortcuts import get_object_or_404
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from django_filters.rest_framework import DjangoFilterBackend
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from rest_framework import filters, generics, status
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from rest_framework.permissions import IsAuthenticated
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from rest_framework.response import Response
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from members.permissions import IsInProjectReadOnlyOrAdmin
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from ..filters import ExampleFilter
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from ..models import Example, Project
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from ..serializers import ExampleSerializer
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class ExampleList(generics.ListCreateAPIView):
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serializer_class = ExampleSerializer
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permission_classes = [IsAuthenticated & IsInProjectReadOnlyOrAdmin]
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filter_backends = (DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter)
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ordering_fields = ('created_at', 'updated_at')
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search_fields = ('text', 'filename')
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model = Example
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filter_class = ExampleFilter
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@property
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def project(self):
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return get_object_or_404(Project, pk=self.kwargs['project_id'])
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def get_queryset(self):
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queryset = self.model.objects.filter(project=self.project)
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if self.project.random_order:
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# Todo: fix the algorithm.
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random.seed(self.request.user.id)
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value = random.randrange(2, 20)
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queryset = queryset.annotate(sort_id=F('id') % value).order_by('sort_id', 'id')
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else:
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queryset = queryset.order_by('created_at')
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return queryset
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def perform_create(self, serializer):
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serializer.save(project=self.project)
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def delete(self, request, *args, **kwargs):
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queryset = self.project.examples
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delete_ids = request.data['ids']
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if delete_ids:
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queryset.filter(pk__in=delete_ids).delete()
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else:
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queryset.all().delete()
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return Response(status=status.HTTP_204_NO_CONTENT)
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class ExampleDetail(generics.RetrieveUpdateDestroyAPIView):
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queryset = Example.objects.all()
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serializer_class = ExampleSerializer
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lookup_url_kwarg = 'example_id'
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permission_classes = [IsAuthenticated & IsInProjectReadOnlyOrAdmin]
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