[SMP-220] Trier areas et polygones par ordre alphabétique (#52)

* added alphabetical order for Polygon and Areas ViewSet

* added indexes to the 'label' field of Area and Polygons Models

mds/apis/prv_api/service_areas.py

@@ -13,6 +13,8 @@
 from mds.access_control.scopes import SCOPE_PRV_API
 from mds.apis import utils
 
+from rest_framework import filters
+
 
 class PolygonRequestSerializer(serializers.ModelSerializer):
     """What we expect for a geographic polygon.
@@ -73,6 +75,9 @@ class Meta:
 class PolygonViewSet(utils.MultiSerializerViewSetMixin, viewsets.ModelViewSet):
     permission_classes = (require_scopes(SCOPE_PRV_API),)
     queryset = models.Polygon.objects.prefetch_related("areas").all()
+    filter_backends = (filters.OrderingFilter,)
+    ordering_fields = ("label",)
+    ordering = "label"
     lookup_field = "id"
     serializer_class = PolygonResponseSerializer
     serializers_mapping = {
@@ -188,6 +193,9 @@ class Meta:
 class AreaViewSet(utils.MultiSerializerViewSetMixin, viewsets.ModelViewSet):
     permission_classes = (require_scopes(SCOPE_PRV_API),)
     queryset = models.Area.objects.prefetch_related("polygons").all()
+    filter_backends = (filters.OrderingFilter,)
+    ordering_fields = ("label",)
+    ordering = "label"
     lookup_field = "id"
     serializer_class = AreaResponseSerializer
     serializers_mapping = {

mds/migrations/0011_added_index_to_polygon_and_area_models.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.1.7 on 2019-03-01 11:13
+
+from django.db import migrations
+import mds.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mds', '0010_device_dn_battery_pct'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='area',
+            name='label',
+            field=mds.models.UnboundedCharField(blank=True, db_index=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name='polygon',
+            name='label',
+            field=mds.models.UnboundedCharField(blank=True, db_index=True, null=True),
+        ),
+    ]

mds/models.py

@@ -187,7 +187,7 @@ class Polygon(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4)
     creation_date = models.DateTimeField(default=utils.timezone.now)
     deletion_date = models.DateTimeField(null=True, blank=True)
-    label = UnboundedCharField(null=True, blank=True)
+    label = UnboundedCharField(null=True, blank=True, db_index=True)
     geom = gis_models.PolygonField()
     properties = pg_fields.JSONField(default=dict, encoder=encoders.JSONEncoder)
 
@@ -198,7 +198,7 @@ class Area(models.Model):
         default=datetime.datetime(2012, 1, 1, tzinfo=datetime.timezone.utc)
     )
     deletion_date = models.DateTimeField(null=True, blank=True)
-    label = UnboundedCharField(null=True, blank=True)
+    label = UnboundedCharField(null=True, blank=True, db_index=True)
     polygons = models.ManyToManyField(Polygon, blank=True, related_name="areas")
     providers = models.ManyToManyField(Provider, blank=True, related_name="areas")
     color = models.CharField(