/
views.py
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/
views.py
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from django.db.models import F
from django.http import QueryDict, Http404
from django.shortcuts import get_object_or_404
from drf_yasg.utils import swagger_auto_schema
from pydash import get
from rest_framework import status
from rest_framework.generics import DestroyAPIView, UpdateAPIView, RetrieveAPIView, ListAPIView
from rest_framework.mixins import CreateModelMixin
from rest_framework.permissions import IsAdminUser
from rest_framework.response import Response
from core.common.constants import HEAD
from core.common.exceptions import Http409
from core.common.mixins import ListWithHeadersMixin, ConceptDictionaryMixin
from core.common.swagger_parameters import (
q_param, limit_param, sort_desc_param, page_param, exact_match_param, sort_asc_param, verbose_param,
include_facets_header, updated_since_param, include_retired_param,
compress_header, include_source_versions_param, include_collection_versions_param)
from core.common.views import SourceChildCommonBaseView, SourceChildExtrasView, \
SourceChildExtraRetrieveUpdateDestroyView
from core.concepts.permissions import CanEditParentDictionary, CanViewParentDictionary
from core.mappings.constants import PARENT_VERSION_NOT_LATEST_CANNOT_UPDATE_MAPPING
from core.mappings.documents import MappingDocument
from core.mappings.models import Mapping
from core.mappings.search import MappingSearch
from core.mappings.serializers import MappingDetailSerializer, MappingListSerializer, MappingVersionListSerializer, \
MappingVersionDetailSerializer
class MappingBaseView(SourceChildCommonBaseView):
lookup_field = 'mapping'
model = Mapping
queryset = Mapping.objects.filter(is_active=True)
document_model = MappingDocument
facet_class = MappingSearch
es_fields = Mapping.es_fields
@staticmethod
def get_detail_serializer(obj, data=None, files=None, partial=False):
return MappingDetailSerializer(obj, data, files, partial)
def get_queryset(self):
return Mapping.get_base_queryset(self.params)
class MappingListView(MappingBaseView, ListWithHeadersMixin, CreateModelMixin):
serializer_class = MappingListSerializer
def get_permissions(self):
if self.request.method == 'POST':
return [CanEditParentDictionary(), ]
return [CanViewParentDictionary(), ]
def get_serializer_class(self):
if (self.request.method == 'GET' and self.is_verbose()) or self.request.method == 'POST':
return MappingDetailSerializer
return MappingListSerializer
def get_queryset(self):
is_latest_version = 'collection' not in self.kwargs and 'version' not in self.kwargs or \
get(self.kwargs, 'version') == HEAD
queryset = super().get_queryset()
if is_latest_version:
queryset = queryset.filter(is_latest_version=True)
return queryset.select_related(
'parent__organization', 'parent__user', 'from_concept__parent', 'to_concept__parent', 'to_source',
'versioned_object', 'from_source',
)
def get(self, request, *args, **kwargs):
self.set_parent_resource(False)
if self.parent_resource:
self.check_object_permissions(request, self.parent_resource)
return self.list(request, *args, **kwargs)
def set_parent_resource(self, __pop=True):
from core.sources.models import Source
source = self.kwargs.pop('source', None) if __pop else self.kwargs.get('source', None)
collection = self.kwargs.pop('collection', None) if __pop else self.kwargs.get('collection', None)
container_version = self.kwargs.pop('version', HEAD) if __pop else self.kwargs.get('version', HEAD)
parent_resource = None
if 'org' in self.kwargs:
filters = dict(organization__mnemonic=self.kwargs['org'])
else:
username = self.request.user.username if self.user_is_self else self.kwargs.get('user')
filters = dict(user__username=username)
if source:
parent_resource = Source.get_version(source, container_version or HEAD, filters)
if collection:
from core.collections.models import Collection
parent_resource = Collection.get_version(source, container_version or HEAD, filters)
self.kwargs['parent_resource'] = self.parent_resource = parent_resource
def post(self, request, **kwargs): # pylint: disable=unused-argument
self.set_parent_resource()
if not self.parent_resource:
raise Http404()
data = request.data.dict() if isinstance(request.data, QueryDict) else request.data
serializer = self.get_serializer(data={
**data, 'parent_id': self.parent_resource.id
})
if serializer.is_valid():
self.object = serializer.save()
if serializer.is_valid():
headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
class MappingRetrieveUpdateDestroyView(MappingBaseView, RetrieveAPIView, UpdateAPIView, DestroyAPIView):
serializer_class = MappingDetailSerializer
def get_object(self, queryset=None):
queryset = self.get_queryset()
filters = dict(id=F('versioned_object_id'))
if 'collection' in self.kwargs:
filters = {}
queryset = queryset.order_by('id').distinct('id')
uri_param = self.request.query_params.dict().get('uri')
if uri_param:
filters.update(Mapping.get_parent_and_owner_filters_from_uri(uri_param))
if queryset.count() > 1 and not uri_param:
raise Http409()
instance = queryset.filter(**filters).first()
if not instance:
raise Http404()
self.check_object_permissions(self.request, instance)
return instance
def get_permissions(self):
if self.request.method in ['GET']:
return [CanViewParentDictionary(), ]
if self.request.method == 'DELETE' and self.is_hard_delete_requested():
return [IsAdminUser(), ]
return [CanEditParentDictionary(), ]
def update(self, request, *args, **kwargs):
partial = kwargs.pop('partial', True)
self.object = self.get_object()
self.parent_resource = self.object.parent
if not self.parent_resource.is_head:
return Response(
{'non_field_errors': PARENT_VERSION_NOT_LATEST_CANNOT_UPDATE_MAPPING},
status=status.HTTP_400_BAD_REQUEST
)
self.object = self.object.clone()
serializer = self.get_serializer(self.object, data=request.data, partial=partial)
success_status_code = status.HTTP_200_OK
if serializer.is_valid():
self.object = serializer.save()
if serializer.is_valid():
return Response(serializer.data, status=success_status_code)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def is_hard_delete_requested(self):
return self.request.query_params.get('hardDelete', None) in ['true', True, 'True']
def destroy(self, request, *args, **kwargs):
mapping = self.get_object()
comment = request.data.get('update_comment', None) or request.data.get('comment', None)
if self.is_hard_delete_requested():
mapping.delete()
return Response(status=status.HTTP_204_NO_CONTENT)
errors = mapping.retire(request.user, comment)
if errors:
return Response(errors, status=status.HTTP_400_BAD_REQUEST)
return Response(status=status.HTTP_204_NO_CONTENT)
class MappingReactivateView(MappingBaseView, UpdateAPIView):
serializer_class = MappingDetailSerializer
def get_object(self, queryset=None):
instance = get_object_or_404(self.get_queryset(), id=F('versioned_object_id'))
self.check_object_permissions(self.request, instance)
return instance
def get_permissions(self):
if self.request.method in ['GET']:
return [CanViewParentDictionary(), ]
return [CanEditParentDictionary(), ]
def update(self, request, *args, **kwargs):
mapping = self.get_object()
comment = request.data.get('update_comment', None) or request.data.get('comment', None)
errors = mapping.unretire(request.user, comment)
if errors:
return Response(errors, status=status.HTTP_400_BAD_REQUEST)
return Response(status=status.HTTP_204_NO_CONTENT)
class MappingVersionsView(MappingBaseView, ConceptDictionaryMixin, ListWithHeadersMixin):
permission_classes = (CanViewParentDictionary,)
def get_queryset(self):
queryset = super().get_queryset()
instance = queryset.first()
self.check_object_permissions(self.request, instance)
return queryset.exclude(id=F('versioned_object_id'))
def get_serializer_class(self):
return MappingVersionDetailSerializer if self.is_verbose() else MappingVersionListSerializer
@swagger_auto_schema(
manual_parameters=[
include_source_versions_param, include_collection_versions_param
]
)
def get(self, request, *args, **kwargs):
return self.list(request, *args, **kwargs)
class MappingVersionRetrieveView(MappingBaseView, RetrieveAPIView, DestroyAPIView):
serializer_class = MappingVersionDetailSerializer
def get_permissions(self):
if self.request.method == 'DELETE':
return [IsAdminUser()]
return [CanViewParentDictionary(), ]
def get_object(self, queryset=None):
instance = self.get_queryset().first()
if not instance:
raise Http404()
self.check_object_permissions(self.request, instance)
return instance
class MappingVersionListAllView(MappingBaseView, ListWithHeadersMixin):
permission_classes = (CanViewParentDictionary,)
def get_serializer_class(self):
return MappingDetailSerializer if self.is_verbose() else MappingListSerializer
def get_queryset(self):
return Mapping.global_listing_queryset(
self.get_filter_params(), self.request.user
).select_related(
'parent__organization', 'parent__user',
)
@swagger_auto_schema(
manual_parameters=[
q_param, limit_param, sort_desc_param, sort_asc_param, exact_match_param, page_param, verbose_param,
include_retired_param, updated_since_param,
include_facets_header, compress_header
]
)
def get(self, request, *args, **kwargs):
return self.list(request, *args, **kwargs)
class MappingExtrasView(SourceChildExtrasView, MappingBaseView):
serializer_class = MappingVersionDetailSerializer
class MappingExtraRetrieveUpdateDestroyView(SourceChildExtraRetrieveUpdateDestroyView, MappingBaseView):
serializer_class = MappingVersionDetailSerializer
model = Mapping
class MappingDebugRetrieveDestroyView(ListAPIView):
permission_classes = (IsAdminUser, )
serializer_class = MappingVersionDetailSerializer
def get_queryset(self):
params = self.request.query_params.dict()
if not params:
Mapping.objects.none()
to_concept_code = params.pop('to_concept_code', None)
from_concept_code = params.pop('from_concept_code', None)
filters = params
if to_concept_code:
filters['to_concept_code__icontains'] = to_concept_code
if from_concept_code:
filters['from_concept_code__icontains'] = from_concept_code
return Mapping.objects.filter(**filters)