42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
from rest_framework import serializers
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from rest_framework.metadata import SimpleMetadata
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from rest_framework.request import clone_request
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class ExpandedMetadata(SimpleMetadata):
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def determine_metadata(self, request, view):
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metadata = super().determine_metadata(request, view)
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if hasattr(view, "ordering_fields"):
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metadata["sort"] = view.ordering_fields
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return metadata
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def determine_actions(self, request, view):
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"""
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For generic class based views we return information about
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the fields that are accepted for 'PUT' and 'POST' methods.
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"""
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actions = {}
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for method in {'PUT', 'POST', "GET"} & set(view.allowed_methods):
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view.request = clone_request(request, method)
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try:
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# Test global permissions
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if hasattr(view, 'check_permissions'):
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view.check_permissions(view.request)
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# Test object permissions
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if method == 'PUT' and hasattr(view, 'get_object'):
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view.get_object()
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except (exceptions.APIException, PermissionDenied, Http404):
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pass
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else:
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# If user has appropriate permissions for the view, include
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# appropriate metadata about the fields that should be supplied.
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serializer = view.get_serializer()
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actions[method] = self.get_serializer_info(serializer)
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finally:
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view.request = request
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return actions
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