kopia lustrzana https://github.com/OpenDroneMap/WebODM
94 wiersze
3.8 KiB
Python
94 wiersze
3.8 KiB
Python
from django.contrib.auth.models import User
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from django.core.exceptions import ObjectDoesNotExist
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from rest_framework import status, serializers, viewsets, filters, exceptions, permissions, parsers
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from rest_framework.response import Response
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from rest_framework.decorators import parser_classes, api_view
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from app import models, scheduler
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from nodeodm.models import ProcessingNode
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class TaskIDsSerializer(serializers.BaseSerializer):
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def to_representation(self, obj):
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return obj.id
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class TaskSerializer(serializers.ModelSerializer):
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project = serializers.PrimaryKeyRelatedField(queryset=models.Project.objects.all())
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processing_node = serializers.PrimaryKeyRelatedField(queryset=ProcessingNode.objects.all())
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class Meta:
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model = models.Task
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fields = '__all__'
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class TaskViewSet(viewsets.ViewSet):
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"""
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A task represents a set of images and other input to be sent to a processing node.
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Once a processing node completes processing, results are stored in the task.
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"""
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queryset = models.Task.objects.all()
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# We don't use object level permissions on tasks, relying on
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# project's object permissions instead (but standard model permissions still apply)
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permission_classes = (permissions.DjangoModelPermissions, )
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parser_classes = (parsers.MultiPartParser, parsers.JSONParser, )
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def get_and_check_project(self, request, project_pk, perms = ('view_project', )):
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'''
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Retrieves a project and raises an exeption if the current user
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has no access to it.
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'''
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try:
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project = models.Project.objects.get(pk=project_pk)
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for perm in perms:
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if not request.user.has_perm(perm, project): raise ObjectDoesNotExist()
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except ObjectDoesNotExist:
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raise exceptions.NotFound()
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return project
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def list(self, request, project_pk=None):
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project = self.get_and_check_project(request, project_pk)
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tasks = self.queryset.filter(project=project_pk)
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serializer = TaskSerializer(tasks, many=True)
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return Response(serializer.data)
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def retrieve(self, request, pk=None, project_pk=None):
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self.get_and_check_project(request, project_pk)
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try:
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task = self.queryset.get(pk=pk, project=project_pk)
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except ObjectDoesNotExist:
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raise exceptions.NotFound()
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serializer = TaskSerializer(task)
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return Response(serializer.data)
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def create(self, request, project_pk=None):
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project = self.get_and_check_project(request, project_pk, ('change_project', ))
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# MultiValueDict in, flat array of files out
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files = [file for filesList in map(
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lambda key: request.FILES.getlist(key),
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[keys for keys in request.FILES])
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for file in filesList]
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task = models.Task.create_from_images(files, project)
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if task != None:
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return Response({"id": task.id}, status=status.HTTP_201_CREATED)
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else:
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raise exceptions.ValidationError(detail="Cannot create task, input provided is not valid.")
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def update(self, request, pk=None, project_pk=None, partial=False):
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project = self.get_and_check_project(request, project_pk, ('change_project', ))
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try:
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task = self.queryset.get(pk=pk, project=project_pk)
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except ObjectDoesNotExist:
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raise exceptions.NotFound()
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serializer = TaskSerializer(task, data=request.data, partial=partial)
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serializer.is_valid(raise_exception=True)
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serializer.save()
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# Call the scheduler (speed things up)
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scheduler.process_pending_tasks(background=True)
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return Response(serializer.data)
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def partial_update(self, request, *args, **kwargs):
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kwargs['partial'] = True
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return self.update(request, *args, **kwargs) |