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rOACCT/django_api/views.py
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views.py
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from django.contrib.auth.models import AbstractUser
from django.shortcuts import render
from django.contrib.auth import authenticate, login, logout
from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect, Http404, JsonResponse
from .models import *
from .serializers import *
from rest_framework import viewsets, filters, generics
from django.utils.decorators import method_decorator
from django.views.decorators.cache import cache_page
from rest_framework.authentication import BasicAuthentication
from rest_framework.permissions import IsAuthenticatedOrReadOnly
from rest_framework import status
from rest_framework.decorators import api_view
from rest_framework.response import Response
from rest_framework_tracking.mixins import LoggingMixin
from itertools import chain
from django.db.models import Count, Max
from dj_rql.filter_cls import RQLFilterClass
from urllib.parse import unquote
from datetime import date
class JournalViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
search_fields = ['name']
filter_backends = (filters.SearchFilter,)
queryset = Journal.objects.all()
serializer_class = JournalSerializer
class JournalLightViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
search_fields = ['name']
filter_backends = (filters.SearchFilter,)
queryset = Journal.objects.all().prefetch_related('publisher', 'language', 'oa_status')
serializer_class = JournalLightSerializer
@method_decorator(cache_page(4 * 60 * 60))
def dispatch(self, request, *args, **kwargs):
# print('dispatch() called')
return super().dispatch(request, *args, **kwargs)
@method_decorator(cache_page(4 * 60 * 60))
def list(self, request):
# print('list() called')
serializer = self.serializer_class(self.queryset, many=True)
return Response(serializer.data)
class OrgaViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = OrgaSerializer
queryset = Organization.objects.filter(
is_funder=False
)
class ConditionSetFilters(RQLFilterClass):
""" API filters for the essential query on ConditionSets
Arguments can include a journal id, zero to two organization ids,
validity dates and a condition type.
Request examples:
http://127.0.0.1:8000/api/conditionset/?and(eq(journalcondition.journal.id,3),eq(organizationcondition.organization.id,11),eq(condition_type.id,1))
http://127.0.0.1:8000/api/conditionset/?and(eq(journalcondition.journal.id,14),ne(condition_type.id,2),ge(journalcondition.valid_until,2021-08-20),le(journalcondition.valid_from,2021-08-20),ge(organizationcondition.valid_until,2021-08-20),le(organizationcondition.valid_from,2021-08-20))
"""
MODEL = ConditionSet
DISTINCT = True
FILTERS = (
'id',
{
'namespace': 'journalcondition',
'filters': ['id', 'valid_from', 'valid_until',
{
'namespace': 'journal',
'filters': ['id', ],
}
],
},
{
'namespace': 'organizationcondition',
'filters': ['id', 'valid_from', 'valid_until',
{
'namespace': 'organization',
'filters': ['id', ]
}
],
},
{
'namespace': 'condition_type',
'filters': ['id', ],
},
)
class ConditionSetViewSet(LoggingMixin, viewsets.ModelViewSet):
""" ViewSet for ConditionSets
The QuerySet obtained from the database is annotated to obtain the desired sorting order,
i.e. by condition_type, then subtype, then a calculated score so that institutions receive
more attention than funders within a given type/subtype
"""
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
queryset = ConditionSet.objects.all().annotate(include_funder=Max('organization__is_funder')).order_by('condition_type','subtype', 'include_funder','comment')
# queryset = ConditionSet.objects.values('term__version__description')
serializer_class = ConditionSetSerializer
# serializer_class = ConditionGroupedSerializer
rql_filter_class = ConditionSetFilters
#.objects.values('term__version.description')
class ConditionSetLightViewSet(LoggingMixin, viewsets.ModelViewSet):
""" Light-weight ViewSet for ConditionSets
The QuerySet obtained from the database is annotated to obtain the desired sorting order,
i.e. by condition_type, then subtype, then a calculated score so that institutions receive
more attention than funders within a given type/subtype
"""
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
queryset = ConditionSet.objects.all().annotate(include_funder=Max('organization__is_funder')).order_by('condition_type','subtype','include_funder','comment')
serializer_class = ConditionSetLightSerializer
rql_filter_class = ConditionSetFilters
class FunderViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = OrgaSerializer
queryset = Organization.objects.filter(
is_funder=True
)
class TermViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = TermSerializer
queryset = Term.objects.all()
class CountryViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = CountrySerializer
queryset = Country.objects.all()
class LanguageViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = LanguageSerializer
queryset = Language.objects.all()
class IssnViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = IssnSerializer
queryset = Issn.objects.all()
class OaViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = OaSerializer
queryset = Oa.objects.all()
class PublisherViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = PublisherSerializer
queryset = Publisher.objects.all()
class VersionViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = VersionSerializer
queryset = Version.objects.all()
class LicenceViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = LicenceSerializer
queryset = Licence.objects.all()
class Cost_factor_typeViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = Cost_factor_typeSerializer
queryset = Cost_factor_type.objects.all()
class Cost_factorViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = Cost_factorSerializer
queryset = Cost_factor.objects.all()
class ConditionTypeViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = ConditionTypeSerializer
queryset = ConditionType.objects.all()
class OrganizationConditionViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = OrganizationConditionSerializer
queryset = OrganizationCondition.objects.all()
class JournalConditionViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = JournalConditionSerializer
queryset = JournalCondition.objects.all()
class OrganizationConditionViewSet(viewsets.ModelViewSet):
authentification_classes = (BasicAuthentication,)
permission_classes = [IsAuthenticatedOrReadOnly]
serializer_class = OrganizationConditionSerializer
queryset = OrganizationCondition.objects.all()
# Count number of different version
# OrganizationCondition.objects.annotate(version_count=Count('condition_set__term__version'))
# OrganizationCondition.objects
# .values('condition_set__term__version') #what to group by
# .annotate(version_count=Count('condition_set__term__version')) # what to aggregate
# group by version and count
# OrganizationCondition.objects.values('condition_set__term__version').annotate(version_count=Count('condition_set__term__version'))
# source https://hakibenita.com/django-group-by-sql
# https://docs.djangoproject.com/en/3.2/topics/db/aggregation/
# OrganizationCondition.objects.values('condition_set__term__version').filter(organization_id=1).annotate(version_count=Count('condition_set__term__version'))
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