taiga-back/taiga/projects/issues/api.py

201 lines
7.4 KiB
Python

# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
# Copyright (C) 2014 Jesús Espino <jespinog@gmail.com>
# Copyright (C) 2014 David Barragán <bameda@dbarragan.com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from django.utils.translation import ugettext_lazy as _
from django.shortcuts import get_object_or_404
from django.db.models import Q
from django.http import Http404
from rest_framework.response import Response
from rest_framework import status
from taiga.base import filters
from taiga.base import exceptions as exc
from taiga.base.decorators import detail_route
from taiga.base.api import ModelCrudViewSet, ModelListViewSet
from taiga.base import tags
from taiga.users.models import User
from taiga.projects.notifications import WatchedResourceMixin
from taiga.projects.occ import OCCResourceMixin
from taiga.projects.history import HistoryResourceMixin
from taiga.projects.votes.utils import attach_votescount_to_queryset
from taiga.projects.votes import services as votes_service
from taiga.projects.votes import serializers as votes_serializers
from . import models
from . import permissions
from . import serializers
class IssuesFilter(filters.FilterBackend):
filter_fields = ("status", "severity", "priority", "owner", "assigned_to", "tags", "type")
_special_values_dict = {
'true': True,
'false': False,
'null': None,
}
def _prepare_filters_data(self, request):
def _transform_value(value):
try:
return int(value)
except:
if value in self._special_values_dict.keys():
return self._special_values_dict[value]
raise exc.BadRequest()
data = {}
for filtername in self.filter_fields:
if filtername not in request.QUERY_PARAMS:
continue
raw_value = request.QUERY_PARAMS[filtername]
values = set([x.strip() for x in raw_value.split(",")])
if filtername != "tags":
values = map(_transform_value, values)
data[filtername] = list(values)
return data
def filter_queryset(self, request, queryset, view):
filterdata = self._prepare_filters_data(request)
if "tags" in filterdata:
queryset = tags.filter(queryset, contains=filterdata["tags"])
for name, value in filter(lambda x: x[0] != "tags", filterdata.items()):
if None in value:
qs_in_kwargs = {"{0}__in".format(name): [v for v in value if v is not None]}
qs_isnull_kwargs = {"{0}__isnull".format(name): True}
queryset = queryset.filter(Q(**qs_in_kwargs) | Q(**qs_isnull_kwargs))
else:
qs_kwargs = {"{0}__in".format(name): value}
queryset = queryset.filter(**qs_kwargs)
return queryset
class IssuesOrdering(filters.FilterBackend):
def filter_queryset(self, request, queryset, view):
order_by = request.QUERY_PARAMS.get('order_by', None)
if order_by in ['owner', '-owner', 'assigned_to', '-assigned_to']:
return queryset.order_by(
'{}__full_name'.format(order_by)
)
return queryset
class IssueViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin, ModelCrudViewSet):
serializer_class = serializers.IssueNeighborsSerializer
list_serializer_class = serializers.IssueSerializer
permission_classes = (permissions.IssuePermission, )
filter_backends = (filters.CanViewIssuesFilterBackend, IssuesFilter, IssuesOrdering)
retrieve_exclude_filters = (IssuesFilter,)
filter_fields = ("project",)
order_by_fields = ("severity",
"status",
"priority",
"created_date",
"modified_date",
"owner",
"assigned_to",
"subject")
def get_queryset(self):
qs = models.Issue.objects.all()
qs = qs.prefetch_related("attachments")
qs = attach_votescount_to_queryset(qs, as_field="votes_count")
return qs
def pre_save(self, obj):
if not obj.id:
obj.owner = self.request.user
super().pre_save(obj)
def pre_conditions_on_save(self, obj):
super().pre_conditions_on_save(obj)
if obj.milestone and obj.milestone.project != obj.project:
raise exc.PermissionDenied(_("You don't have permissions to set this milestone to this issue."))
if obj.status and obj.status.project != obj.project:
raise exc.PermissionDenied(_("You don't have permissions to set this status to this issue."))
if obj.severity and obj.severity.project != obj.project:
raise exc.PermissionDenied(_("You don't have permissions to set this severity to this issue."))
if obj.priority and obj.priority.project != obj.project:
raise exc.PermissionDenied(_("You don't have permissions to set this priority to this issue."))
if obj.type and obj.type.project != obj.project:
raise exc.PermissionDenied(_("You don't have permissions to set this type to this issue."))
@detail_route(methods=['post'])
def upvote(self, request, pk=None):
issue = get_object_or_404(models.Issue, pk=pk)
self.check_permissions(request, 'upvote', issue)
votes_service.add_vote(issue, user=request.user)
return Response(status=status.HTTP_200_OK)
@detail_route(methods=['post'])
def downvote(self, request, pk=None):
issue = get_object_or_404(models.Issue, pk=pk)
self.check_permissions(request, 'downvote', issue)
votes_service.remove_vote(issue, user=request.user)
return Response(status=status.HTTP_200_OK)
class VotersViewSet(ModelListViewSet):
serializer_class = votes_serializers.VoterSerializer
list_serializer_class = votes_serializers.VoterSerializer
permission_classes = (permissions.IssueVotersPermission, )
def retrieve(self, request, *args, **kwargs):
pk = kwargs.get("pk", None)
issue_id = kwargs.get("issue_id", None)
issue = get_object_or_404(models.Issue, pk=issue_id)
self.check_permissions(request, 'retrieve', issue)
try:
self.object = votes_service.get_voters(issue).get(pk=pk)
except User.DoesNotExist:
raise Http404
serializer = self.get_serializer(self.object)
return Response(serializer.data)
def list(self, request, *args, **kwargs):
issue_id = kwargs.get("issue_id", None)
issue = get_object_or_404(models.Issue, pk=issue_id)
self.check_permissions(request, 'list', issue)
return super().list(request, *args, **kwargs)
def get_queryset(self):
issue = models.Issue.objects.get(pk=self.kwargs.get("issue_id"))
return votes_service.get_voters(issue)