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114 lines
3.4 KiB
Python
114 lines
3.4 KiB
Python
"""
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Generic views that provide commmonly needed behaviour.
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"""
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from djangorestframework import views, mixins
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from django.views.generic.detail import SingleObjectMixin
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from django.views.generic.list import MultipleObjectMixin
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### Base classes for the generic views ###
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class BaseView(views.APIView):
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"""
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Base class for all other generic views.
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"""
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serializer_class = None
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def get_serializer(self, data=None, files=None, instance=None):
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# TODO: add support for files
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# TODO: add support for seperate serializer/deserializer
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context = {
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'request': self.request,
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'format': self.kwargs.get('format', None)
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}
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return self.serializer_class(data, instance=instance, context=context)
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class MultipleObjectBaseView(MultipleObjectMixin, BaseView):
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"""
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Base class for generic views onto a queryset.
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"""
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pass
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class SingleObjectBaseView(SingleObjectMixin, BaseView):
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"""
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Base class for generic views onto a model instance.
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"""
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def get_object(self):
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"""
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Override default to add support for object-level permissions.
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"""
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obj = super(SingleObjectBaseView, self).get_object()
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self.check_permissions(self.request, obj)
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return obj
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### Concrete view classes that provide method handlers ###
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### by composing the mixin classes with a base view. ###
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class ListAPIView(mixins.ListModelMixin,
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mixins.MetadataMixin,
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MultipleObjectBaseView):
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"""
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Concrete view for listing a queryset.
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"""
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def get(self, request, *args, **kwargs):
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return self.list(request, *args, **kwargs)
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def options(self, request, *args, **kwargs):
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return self.metadata(request, *args, **kwargs)
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class RootAPIView(mixins.ListModelMixin,
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mixins.CreateModelMixin,
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mixins.MetadataMixin,
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MultipleObjectBaseView):
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"""
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Concrete view for listing a queryset or creating a model instance.
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"""
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def get(self, request, *args, **kwargs):
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return self.list(request, *args, **kwargs)
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def post(self, request, *args, **kwargs):
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return self.create(request, *args, **kwargs)
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def options(self, request, *args, **kwargs):
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return self.metadata(request, *args, **kwargs)
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class DetailAPIView(mixins.RetrieveModelMixin,
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mixins.MetadataMixin,
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SingleObjectBaseView):
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"""
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Concrete view for retrieving a model instance.
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"""
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def get(self, request, *args, **kwargs):
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return self.retrieve(request, *args, **kwargs)
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def options(self, request, *args, **kwargs):
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return self.metadata(request, *args, **kwargs)
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class InstanceAPIView(mixins.RetrieveModelMixin,
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mixins.UpdateModelMixin,
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mixins.DestroyModelMixin,
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mixins.MetadataMixin,
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SingleObjectBaseView):
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"""
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Concrete view for retrieving, updating or deleting a model instance.
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"""
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def get(self, request, *args, **kwargs):
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return self.retrieve(request, *args, **kwargs)
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def put(self, request, *args, **kwargs):
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return self.update(request, *args, **kwargs)
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def delete(self, request, *args, **kwargs):
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return self.destroy(request, *args, **kwargs)
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def options(self, request, *args, **kwargs):
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return self.metadata(request, *args, **kwargs)
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