2016-11-14 21:15:20 +01:00
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import mimetypes
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2017-06-22 19:46:06 +02:00
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import operator
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2017-10-27 16:40:15 +02:00
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from functools import reduce, wraps
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2017-05-05 16:37:03 +02:00
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2017-10-27 14:51:09 +02:00
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from django.core.cache import cache
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2017-06-11 15:10:36 +02:00
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from django.db.models import Prefetch, Q
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2017-05-11 19:36:49 +02:00
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from django.http import HttpResponse
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2017-05-11 22:40:48 +02:00
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from django.shortcuts import redirect
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2017-10-27 16:40:15 +02:00
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from django.utils.cache import get_conditional_response
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from django.utils.http import quote_etag
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2017-05-11 19:36:49 +02:00
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from django.utils.translation import ugettext_lazy as _
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2017-01-13 21:52:44 +01:00
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from rest_framework.decorators import detail_route, list_route
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2017-05-11 19:36:49 +02:00
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from rest_framework.exceptions import NotFound, ValidationError
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2017-05-11 21:30:29 +02:00
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from rest_framework.mixins import RetrieveModelMixin
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2016-11-14 21:15:20 +01:00
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from rest_framework.response import Response
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2017-10-10 17:55:55 +02:00
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from rest_framework.viewsets import GenericViewSet, ReadOnlyModelViewSet, ViewSet
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2016-11-14 21:15:20 +01:00
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2017-10-27 14:51:09 +02:00
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from c3nav.mapdata.models import AccessRestriction, Building, Door, Hole, LocationGroup, MapUpdate, Source, Space
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from c3nav.mapdata.models.access import AccessPermission
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2017-06-22 19:27:51 +02:00
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from c3nav.mapdata.models.geometry.level import LevelGeometryMixin
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2017-07-08 16:29:12 +02:00
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from c3nav.mapdata.models.geometry.space import POI, Area, Column, LineObstacle, Obstacle, SpaceGeometryMixin, Stair
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2017-06-11 14:43:14 +02:00
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from c3nav.mapdata.models.level import Level
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2017-07-10 13:54:33 +02:00
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from c3nav.mapdata.models.locations import (Location, LocationGroupCategory, LocationRedirect, LocationSlug,
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SpecificLocation)
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2017-06-22 19:27:51 +02:00
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from c3nav.mapdata.utils.models import get_submodels
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2017-06-11 15:10:36 +02:00
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def optimize_query(qs):
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if issubclass(qs.model, SpecificLocation):
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2017-07-10 16:30:38 +02:00
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base_qs = LocationGroup.objects.select_related('category').only('id', 'titles', 'category')
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qs = qs.prefetch_related(Prefetch('groups', queryset=base_qs))
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2017-06-11 15:10:36 +02:00
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return qs
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2016-11-14 21:15:20 +01:00
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2017-10-27 17:33:50 +02:00
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def simple_api_cache(permissions=True, etag_func=AccessPermission.etag_func):
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2017-10-27 16:40:15 +02:00
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def wrapper(func):
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@wraps(func)
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def wrapped_func(self, request, *args, **kwargs):
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2017-10-27 17:33:50 +02:00
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etag = quote_etag(etag_func(request) if permissions else MapUpdate.current_cache_key())
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2017-10-27 16:40:15 +02:00
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response = get_conditional_response(request, etag=etag)
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if response is None:
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response = func(self, request, *args, **kwargs)
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response['ETag'] = etag
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response['Cache-Control'] = 'no-cache'
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return response
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return wrapped_func
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return wrapper
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2017-10-10 17:55:55 +02:00
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class MapViewSet(ViewSet):
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"""
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Map API
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/bounds/ returns the maximum bounds of the map
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"""
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@list_route(methods=['get'])
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2017-10-27 16:40:15 +02:00
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@simple_api_cache(permissions=False)
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2017-10-10 17:55:55 +02:00
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def bounds(self, request, *args, **kwargs):
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return Response({
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'bounds': Source.max_bounds(),
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})
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2017-05-11 19:36:49 +02:00
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class MapdataViewSet(ReadOnlyModelViewSet):
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2017-07-13 19:22:57 +02:00
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def get_queryset(self):
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qs = super().get_queryset()
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if hasattr(qs.model, 'qs_for_request'):
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return qs.model.qs_for_request(self.request)
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return qs
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2017-10-27 16:40:15 +02:00
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@simple_api_cache()
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def list(self, request, *args, **kwargs):
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qs = optimize_query(self.get_queryset())
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geometry = ('geometry' in request.GET)
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2017-06-22 19:27:51 +02:00
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if issubclass(qs.model, LevelGeometryMixin) and 'level' in request.GET:
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2017-06-11 14:43:14 +02:00
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if not request.GET['level'].isdigit():
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raise ValidationError(detail={'detail': _('%s is not an integer.') % 'level'})
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2017-05-11 19:36:49 +02:00
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try:
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level = Level.qs_for_request(request).get(pk=request.GET['level'])
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2017-06-11 14:43:14 +02:00
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except Level.DoesNotExist:
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raise NotFound(detail=_('level not found.'))
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qs = qs.filter(level=level)
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2017-06-22 19:27:51 +02:00
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if issubclass(qs.model, SpaceGeometryMixin) and 'space' in request.GET:
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if not request.GET['space'].isdigit():
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raise ValidationError(detail={'detail': _('%s is not an integer.') % 'space'})
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try:
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2017-07-13 19:22:57 +02:00
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space = Space.qs_for_request(request).get(pk=request.GET['space'])
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2017-05-11 19:36:49 +02:00
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except Space.DoesNotExist:
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raise NotFound(detail=_('space not found.'))
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2017-05-11 19:36:49 +02:00
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qs = qs.filter(space=space)
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2017-07-10 16:36:52 +02:00
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if issubclass(qs.model, LocationGroup) and 'category' in request.GET:
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kwargs = {('pk' if request.GET['category'].isdigit() else 'name'): request.GET['category']}
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try:
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category = LocationGroupCategory.objects.get(**kwargs)
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except LocationGroupCategory.DoesNotExist:
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raise NotFound(detail=_('category not found.'))
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qs = qs.filter(category=category)
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2017-07-10 16:43:44 +02:00
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if issubclass(qs.model, SpecificLocation) and 'group' in request.GET:
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if not request.GET['group'].isdigit():
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raise ValidationError(detail={'detail': _('%s is not an integer.') % 'group'})
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try:
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group = LocationGroup.objects.get(pk=request.GET['group'])
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except LocationGroupCategory.DoesNotExist:
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raise NotFound(detail=_('group not found.'))
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qs = qs.filter(groups=group)
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2017-06-11 14:43:14 +02:00
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if qs.model == Level and 'on_top_of' in request.GET:
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2017-06-10 14:58:13 +02:00
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if request.GET['on_top_of'] == 'null':
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qs = qs.filter(on_top_of__isnull=False)
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else:
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if not request.GET['on_top_of'].isdigit():
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raise ValidationError(detail={'detail': _('%s is not null or an integer.') % 'on_top_of'})
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try:
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2017-06-11 14:43:14 +02:00
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level = Level.objects.get(pk=request.GET['on_top_of'])
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except Level.DoesNotExist:
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raise NotFound(detail=_('level not found.'))
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qs = qs.filter(on_top_of=level)
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2017-05-11 19:36:49 +02:00
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return Response([obj.serialize(geometry=geometry) for obj in qs.order_by('id')])
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2017-10-27 16:40:15 +02:00
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@simple_api_cache()
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2017-05-11 21:30:29 +02:00
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def retrieve(self, request, *args, **kwargs):
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return Response(self.get_object().serialize())
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2017-05-11 21:30:29 +02:00
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@staticmethod
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def list_types(models_list, **kwargs):
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2016-12-06 20:47:17 +01:00
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return Response([
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model.serialize_type(**kwargs) for model in models_list
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])
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2017-06-11 14:43:14 +02:00
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class LevelViewSet(MapdataViewSet):
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2017-07-10 16:43:44 +02:00
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""" Add ?on_top_of=<null or id> to filter by on_top_of, add ?group=<id> to filter by group. """
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2017-06-11 14:43:14 +02:00
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queryset = Level.objects.all()
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2016-12-07 16:11:33 +01:00
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2017-05-11 19:36:49 +02:00
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@list_route(methods=['get'])
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2017-10-27 16:40:15 +02:00
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@simple_api_cache(permissions=False)
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2017-05-11 19:36:49 +02:00
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def geometrytypes(self, request):
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2017-06-22 19:27:51 +02:00
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return self.list_types(get_submodels(LevelGeometryMixin))
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2016-12-07 16:11:33 +01:00
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2017-05-12 23:37:03 +02:00
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@detail_route(methods=['get'])
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2017-10-27 16:40:15 +02:00
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@simple_api_cache()
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2017-07-14 00:16:20 +02:00
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def svg(self, request, pk=None):
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level = self.get_object()
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2017-07-14 00:16:20 +02:00
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response = HttpResponse(level.render_svg(request), 'image/svg+xml')
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2017-05-12 23:37:03 +02:00
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return response
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2016-12-19 16:54:11 +01:00
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2017-05-11 19:36:49 +02:00
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class BuildingViewSet(MapdataViewSet):
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2017-06-11 14:43:14 +02:00
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""" Add ?geometry=1 to get geometries, add ?level=<id> to filter by level. """
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2017-05-11 19:36:49 +02:00
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queryset = Building.objects.all()
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2016-12-06 23:43:57 +01:00
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2016-12-19 16:54:11 +01:00
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2017-05-11 19:36:49 +02:00
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class SpaceViewSet(MapdataViewSet):
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2017-07-10 16:43:44 +02:00
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""" Add ?geometry=1 to get geometries, add ?level=<id> to filter by level, add ?group=<id> to filter by group. """
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2017-05-11 19:36:49 +02:00
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queryset = Space.objects.all()
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2016-12-08 12:36:09 +01:00
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2017-05-11 19:36:49 +02:00
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@list_route(methods=['get'])
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2017-10-27 16:40:15 +02:00
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@simple_api_cache(permissions=False)
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2017-05-11 19:36:49 +02:00
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def geometrytypes(self, request):
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2017-06-22 19:27:51 +02:00
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return self.list_types(get_submodels(SpaceGeometryMixin))
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2016-12-06 23:43:57 +01:00
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2016-11-14 21:15:20 +01:00
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2017-05-11 19:36:49 +02:00
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class DoorViewSet(MapdataViewSet):
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2017-06-11 14:43:14 +02:00
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""" Add ?geometry=1 to get geometries, add ?level=<id> to filter by level. """
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2017-05-11 19:36:49 +02:00
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queryset = Door.objects.all()
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class HoleViewSet(MapdataViewSet):
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2017-06-08 15:19:12 +02:00
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space. """
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2017-05-11 19:36:49 +02:00
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queryset = Hole.objects.all()
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class AreaViewSet(MapdataViewSet):
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2017-07-10 16:43:44 +02:00
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space, add ?group=<id> to filter by group. """
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2017-05-11 19:36:49 +02:00
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queryset = Area.objects.all()
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class StairViewSet(MapdataViewSet):
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space. """
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queryset = Stair.objects.all()
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class ObstacleViewSet(MapdataViewSet):
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space. """
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queryset = Obstacle.objects.all()
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class LineObstacleViewSet(MapdataViewSet):
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space. """
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queryset = LineObstacle.objects.all()
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2017-06-09 15:22:30 +02:00
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class ColumnViewSet(MapdataViewSet):
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space. """
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queryset = Column.objects.all()
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2017-07-08 16:29:12 +02:00
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class POIViewSet(MapdataViewSet):
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2017-07-10 16:43:44 +02:00
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""" Add ?geometry=1 to get geometries, add ?space=<id> to filter by space, add ?group=<id> to filter by group. """
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2017-07-08 16:29:12 +02:00
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queryset = POI.objects.all()
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2017-05-11 19:36:49 +02:00
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2017-07-10 13:54:33 +02:00
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class LocationGroupCategoryViewSet(MapdataViewSet):
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queryset = LocationGroupCategory.objects.all()
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2017-05-11 19:36:49 +02:00
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class LocationGroupViewSet(MapdataViewSet):
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""" Add ?category=<id or name> to filter by category. """
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2017-05-11 19:36:49 +02:00
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queryset = LocationGroup.objects.all()
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2017-05-11 21:30:29 +02:00
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class LocationViewSet(RetrieveModelMixin, GenericViewSet):
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2017-05-12 12:55:23 +02:00
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"""
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only accesses locations that have can_search or can_describe set to true.
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2017-10-28 14:09:59 +02:00
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add ?searchable to only show locations with can_search set to true ordered by relevance
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2017-10-27 14:52:31 +02:00
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add ?detailed to show all attributes
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add ?geometry to show geometries
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2017-05-12 12:55:23 +02:00
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/{id}/ add ?show_redirect=1 to suppress redirects and show them as JSON.
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"""
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2017-05-11 19:36:49 +02:00
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queryset = LocationSlug.objects.all()
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lookup_field = 'slug'
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2017-10-27 15:25:03 +02:00
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def get_queryset(self, mode=None):
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2017-06-22 20:09:58 +02:00
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queryset = super().get_queryset().order_by('id')
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2017-06-22 19:53:25 +02:00
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2017-06-22 19:57:49 +02:00
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conditions = []
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for model in get_submodels(Location):
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2017-10-27 13:47:12 +02:00
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related_name = model._meta.default_related_name
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condition = Q(**{related_name+'__isnull': False})
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2017-10-28 12:38:29 +02:00
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if mode == 'search':
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2017-10-27 13:47:12 +02:00
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condition &= Q(**{related_name+'__can_search': True})
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2017-10-28 12:38:29 +02:00
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elif mode == 'search-describe':
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2017-10-28 13:18:28 +02:00
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condition &= Q(**{related_name+'__can_search': True}) | Q(**{related_name+'__can_describe': True})
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2017-07-13 19:22:57 +02:00
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# noinspection PyUnresolvedReferences
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2017-10-27 13:47:12 +02:00
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condition &= model.q_for_request(self.request, prefix=related_name+'__')
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2017-06-22 20:09:58 +02:00
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conditions.append(condition)
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2017-06-22 19:57:49 +02:00
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queryset = queryset.filter(reduce(operator.or_, conditions))
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2017-10-27 13:47:12 +02:00
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# prefetch locationgroups
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2017-10-28 12:44:22 +02:00
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base_qs = LocationGroup.qs_for_request(self.request).select_related('category')
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2017-10-27 13:47:12 +02:00
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for model in get_submodels(SpecificLocation):
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queryset = queryset.prefetch_related(Prefetch(model._meta.default_related_name + '__groups',
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queryset=base_qs))
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2017-06-22 19:53:25 +02:00
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2017-06-22 20:09:58 +02:00
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return queryset
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2017-10-27 16:40:15 +02:00
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@simple_api_cache()
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2017-06-22 20:09:58 +02:00
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def list(self, request, *args, **kwargs):
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2017-10-28 14:09:59 +02:00
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searchable = 'searchable' in request.GET
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2017-06-22 20:09:58 +02:00
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detailed = 'detailed' in request.GET
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2017-10-27 13:47:12 +02:00
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geometry = 'geometry' in request.GET
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2017-07-10 17:03:44 +02:00
|
|
|
|
2017-10-27 16:40:15 +02:00
|
|
|
cache_key = 'mapdata:api:location:list:%d:%s' % (
|
2017-10-28 14:09:59 +02:00
|
|
|
searchable + detailed*2 + geometry*4,
|
2017-10-27 16:40:15 +02:00
|
|
|
AccessPermission.cache_key_for_request(self.request)
|
2017-10-27 15:25:03 +02:00
|
|
|
)
|
|
|
|
result = cache.get(cache_key, None)
|
|
|
|
if result is None:
|
2017-10-27 16:40:15 +02:00
|
|
|
queryset_cache_key = 'mapdata:api:location:queryset:%d:%s' % (
|
2017-10-28 14:09:59 +02:00
|
|
|
searchable,
|
2017-10-27 16:40:15 +02:00
|
|
|
AccessPermission.cache_key_for_request(self.request)
|
2017-10-27 15:25:03 +02:00
|
|
|
)
|
|
|
|
queryset = cache.get(queryset_cache_key, None)
|
2017-10-28 20:30:27 +02:00
|
|
|
if queryset is None or 1:
|
2017-10-28 14:09:59 +02:00
|
|
|
queryset = self.get_queryset(mode=('searchable' if searchable else 'searchable-describe'))
|
2017-10-27 15:25:03 +02:00
|
|
|
|
2017-10-28 20:30:27 +02:00
|
|
|
queryset = tuple(obj.get_child() for obj in queryset)
|
|
|
|
|
|
|
|
if searchable:
|
|
|
|
queryset = sorted(queryset, key=operator.attrgetter('order'), reverse=True)
|
|
|
|
else:
|
|
|
|
queryset = tuple(queryset)
|
|
|
|
|
|
|
|
# add locations to groups
|
|
|
|
locationgroups = {obj.pk: obj for obj in queryset if isinstance(obj, LocationGroup)}
|
|
|
|
for group in locationgroups.values():
|
|
|
|
group.locations = []
|
|
|
|
for obj in queryset:
|
|
|
|
if not isinstance(obj, SpecificLocation):
|
|
|
|
continue
|
|
|
|
for group in obj.groups.all():
|
|
|
|
group = locationgroups.get(group.pk, None)
|
|
|
|
if group is not None:
|
|
|
|
group.locations.append(obj)
|
|
|
|
|
|
|
|
# precache cached properties
|
|
|
|
for obj in queryset:
|
|
|
|
# noinspection PyStatementEffect
|
|
|
|
obj.subtitle, obj.order
|
|
|
|
|
|
|
|
cache.set(queryset_cache_key, queryset, 300)
|
2017-10-28 13:31:12 +02:00
|
|
|
|
|
|
|
result = tuple(obj.serialize(include_type=True, detailed=detailed, geometry=geometry) for obj in queryset)
|
2017-10-27 15:25:03 +02:00
|
|
|
cache.set(cache_key, result, 300)
|
|
|
|
|
|
|
|
return Response(result)
|
2017-05-12 12:55:23 +02:00
|
|
|
|
2017-10-27 16:40:15 +02:00
|
|
|
@simple_api_cache()
|
2017-05-11 22:40:48 +02:00
|
|
|
def retrieve(self, request, slug=None, *args, **kwargs):
|
|
|
|
result = Location.get_by_slug(slug, self.get_queryset())
|
|
|
|
if result is None:
|
|
|
|
raise NotFound
|
2017-05-27 18:33:16 +02:00
|
|
|
result = result.get_child()
|
2017-05-11 22:40:48 +02:00
|
|
|
if isinstance(result, LocationRedirect):
|
|
|
|
if 'show_redirects' in request.GET:
|
|
|
|
return Response(result.serialize(include_type=True))
|
|
|
|
return redirect('../'+result.target.slug) # todo: why does redirect/reverse not work here?
|
2017-05-27 18:33:16 +02:00
|
|
|
return Response(result.serialize(include_type=True, detailed='detailed' in request.GET))
|
2016-11-14 21:15:20 +01:00
|
|
|
|
2017-05-11 21:30:29 +02:00
|
|
|
@list_route(methods=['get'])
|
2017-10-27 16:40:15 +02:00
|
|
|
@simple_api_cache(permissions=False)
|
2017-05-11 21:30:29 +02:00
|
|
|
def types(self, request):
|
2017-06-22 19:27:51 +02:00
|
|
|
return MapdataViewSet.list_types(get_submodels(Location), geomtype=False)
|
2017-05-11 21:30:29 +02:00
|
|
|
|
2016-11-14 21:15:20 +01:00
|
|
|
|
2017-05-12 01:21:53 +02:00
|
|
|
class SourceViewSet(MapdataViewSet):
|
2016-11-14 21:15:20 +01:00
|
|
|
queryset = Source.objects.all()
|
|
|
|
|
|
|
|
@detail_route(methods=['get'])
|
2017-10-27 16:40:15 +02:00
|
|
|
@simple_api_cache()
|
2017-05-11 19:36:49 +02:00
|
|
|
def image(self, request, pk=None):
|
|
|
|
return self._image(request, pk=pk)
|
2016-12-07 16:11:33 +01:00
|
|
|
|
2017-05-11 19:36:49 +02:00
|
|
|
def _image(self, request, pk=None):
|
2016-11-14 21:15:20 +01:00
|
|
|
source = self.get_object()
|
2017-07-08 15:09:56 +02:00
|
|
|
return HttpResponse(open(source.filepath, 'rb'), content_type=mimetypes.guess_type(source.name)[0])
|
2017-07-13 19:01:47 +02:00
|
|
|
|
|
|
|
|
|
|
|
class AccessRestrictionViewSet(MapdataViewSet):
|
|
|
|
queryset = AccessRestriction.objects.all()
|