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pythondatasetsactive-learningtext-annotationdatasetnatural-language-processingdata-labelingmachine-learningannotation-tool
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113 lines
3.4 KiB
113 lines
3.4 KiB
from functools import partial
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from typing import Type
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from django.core.exceptions import ValidationError
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from django.shortcuts import get_object_or_404
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from rest_framework import 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 .permissions import CanEditLabel
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from .serializers import (
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CategorySerializer,
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RelationSerializer,
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SpanSerializer,
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TextLabelSerializer,
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)
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from labels.models import Category, Label, Relation, Span, TextLabel
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from projects.models import Project
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from projects.permissions import IsProjectMember
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class BaseListAPI(generics.ListCreateAPIView):
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label_class: Type[Label]
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pagination_class = None
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permission_classes = [IsAuthenticated & IsProjectMember]
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swagger_schema = None
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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.label_class.objects.filter(example=self.kwargs["example_id"])
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if not self.project.collaborative_annotation:
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queryset = queryset.filter(user=self.request.user)
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return queryset
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def create(self, request, *args, **kwargs):
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request.data["example"] = self.kwargs["example_id"]
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try:
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response = super().create(request, args, kwargs)
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except ValidationError as err:
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response = Response({"detail": err.messages}, status=status.HTTP_400_BAD_REQUEST)
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return response
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def perform_create(self, serializer):
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serializer.save(example_id=self.kwargs["example_id"], user=self.request.user)
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def delete(self, request, *args, **kwargs):
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queryset = self.get_queryset()
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queryset.all().delete()
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return Response(status=status.HTTP_204_NO_CONTENT)
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class BaseDetailAPI(generics.RetrieveUpdateDestroyAPIView):
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lookup_url_kwarg = "annotation_id"
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swagger_schema = None
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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_permissions(self):
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if self.project.collaborative_annotation:
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self.permission_classes = [IsAuthenticated & IsProjectMember]
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else:
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self.permission_classes = [IsAuthenticated & IsProjectMember & partial(CanEditLabel, self.queryset)]
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return super().get_permissions()
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class CategoryListAPI(BaseListAPI):
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label_class = Category
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serializer_class = CategorySerializer
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def create(self, request, *args, **kwargs):
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if self.project.single_class_classification:
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self.get_queryset().delete()
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return super().create(request, args, kwargs)
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class CategoryDetailAPI(BaseDetailAPI):
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queryset = Category.objects.all()
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serializer_class = CategorySerializer
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class SpanListAPI(BaseListAPI):
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label_class = Span
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serializer_class = SpanSerializer
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class SpanDetailAPI(BaseDetailAPI):
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queryset = Span.objects.all()
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serializer_class = SpanSerializer
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class TextLabelListAPI(BaseListAPI):
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label_class = TextLabel
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serializer_class = TextLabelSerializer
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class TextLabelDetailAPI(BaseDetailAPI):
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queryset = TextLabel.objects.all()
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serializer_class = TextLabelSerializer
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class RelationList(BaseListAPI):
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label_class = Relation
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serializer_class = RelationSerializer
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class RelationDetail(BaseDetailAPI):
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queryset = Relation.objects.all()
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serializer_class = RelationSerializer
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