ENH: Collection filterings (#30)

Fixes #29

ccdb/api/middleware.py

@@ -0,0 +1,13 @@
+class DeBracketifyMiddleware(object):
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        cleaned = request.GET.copy()
+        for key in cleaned:
+            if key.endswith('[]'):
+                val = cleaned.pop(key)
+                cleaned_key = key.replace('[]', '')
+                cleaned.setlist(cleaned_key, val)
+        request.GET = cleaned
+        return self.get_response(request)

ccdb/api/urls.py

@@ -24,6 +24,8 @@ router.register(r'collection-flaws',
 # Projects
 router.register(r'projects', projects_viewsets.ProjectViewSet)
 # Locations
+router.register(r'regions', locations_viewsets.RegionViewSet)
+router.register(r'sites', locations_viewsets.SiteViewSet)
 router.register(r'study-locations', locations_viewsets.StudyLocationViewSet)
 
 urlpatterns = [

ccdb/collections_ccdb/filters.py

@@ -0,0 +1,44 @@
+from django_filters.filters import ModelMultipleChoiceFilter
+from django_filters import rest_framework as filters
+
+from .models import Collection, CollectionMethod
+from ccdb.projects.models import Project
+from ccdb.locations.models import Region, Site, StudyLocation
+
+
+class CollectionFilter(filters.FilterSet):
+    project = ModelMultipleChoiceFilter(
+        name='project__id',
+        to_field_name='id',
+        queryset=Project.objects.all(),
+    )
+
+    region = ModelMultipleChoiceFilter(
+        name='study_location__site__region__id',
+        to_field_name='id',
+        queryset=Region.objects.all(),
+    )
+
+    site = ModelMultipleChoiceFilter(
+        name='study_location__site__id',
+        to_field_name='id',
+        queryset=Site.objects.all(),
+    )
+
+    study_location = ModelMultipleChoiceFilter(
+        name='study_location__id',
+        to_field_name='id',
+        queryset=StudyLocation.objects.all(),
+    )
+
+    collection_method = ModelMultipleChoiceFilter(
+        name='collection_method__id',
+        to_field_name='id',
+        queryset=CollectionMethod.objects.all(),
+    )
+
+    class Meta:
+        model = Collection
+        fields = ['project', 'region', 'site', 'study_location',
+                  'collection_method', 'number_of_traps',
+                  'collection_start_date', 'collection_end_date']

ccdb/collections_ccdb/serializers.py

@@ -6,6 +6,7 @@ from .models import Collection, CollectionMethod, CollectionType, Flaw
 class CollectionSerializer(serializers.ModelSerializer):
     included_serializers = {
         'project': 'ccdb.projects.serializers.ProjectSerializer',
+        'site': 'ccdb.locations.serializers.SiteSerializer',
         'study_location': 'ccdb.locations.serializers.StudyLocationSerializer',
         'collection_method':
             'ccdb.collections_ccdb.serializers.CollectionMethodSerializer',

ccdb/collections_ccdb/viewsets.py

@@ -1,5 +1,7 @@
 from rest_framework import viewsets
+from django_filters import rest_framework as filters
 
+from .filters import CollectionFilter
 from .models import Collection, CollectionMethod, CollectionType, Flaw
 from .serializers import (CollectionSerializer, CollectionMethodSerializer,
                           CollectionTypeSerializer, FlawSerializer)
@@ -8,6 +10,8 @@ from .serializers import (CollectionSerializer, CollectionMethodSerializer,
 class CollectionViewSet(viewsets.ModelViewSet):
     queryset = Collection.objects.all()
     serializer_class = CollectionSerializer
+    filter_backends = (filters.DjangoFilterBackend,)
+    filter_class = CollectionFilter
 
 
 class CollectionMethodViewSet(viewsets.ModelViewSet):

ccdb/locations/serializers.py

@@ -1,10 +1,30 @@
 from rest_framework import serializers
 
-from .models import StudyLocation
+from .models import Region, Site, StudyLocation
+
+
+class RegionSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Region
+        fields = ('name', 'code', 'sort_order')
+
+
+class SiteSerializer(serializers.ModelSerializer):
+    included_serializers = {
+        'region': 'ccdb.locations.serializers.RegionSerializer',
+    }
+
+    class Meta:
+        model = Site
+        fields = ('name', 'code', 'description', 'sort_order', 'region')
 
 
 class StudyLocationSerializer(serializers.ModelSerializer):
+    included_serializers = {
+        'site': 'ccdb.locations.serializers.SiteSerializer',
+    }
+
     class Meta:
         model = StudyLocation
         fields = ('name', 'code', 'study_location_type', 'treatment_type',
-                  'collecting_location', 'description', 'sort_order')
+                  'collecting_location', 'description', 'sort_order', 'site')

ccdb/locations/viewsets.py

@@ -1,7 +1,18 @@
 from rest_framework import viewsets
 
-from .models import StudyLocation
-from .serializers import StudyLocationSerializer
+from .models import Region, Site, StudyLocation
+from .serializers import (
+    RegionSerializer, SiteSerializer, StudyLocationSerializer)
+
+
+class RegionViewSet(viewsets.ModelViewSet):
+    queryset = Region.objects.all()
+    serializer_class = RegionSerializer
+
+
+class SiteViewSet(viewsets.ModelViewSet):
+    queryset = Site.objects.all()
+    serializer_class = SiteSerializer
 
 
 class StudyLocationViewSet(viewsets.ModelViewSet):