README.md

@@ -4,7 +4,7 @@ Playing with IoT
 
 [![Build Status](https://travis-ci.com/daniviga/bite.svg?branch=master)](https://travis-ci.com/daniviga/bite)
 ![AGPLv3](./docs/.badges/agpl3.svg)
-![Python 3.9](./docs/.badges/python.svg)
+![Python 3.8](./docs/.badges/python.svg)
 ![MQTT](./docs/.badges/mqtt.svg)
 ![Moby](./docs/.badges/moby.svg)
 ![docker-compose 3.7+](./docs/.badges/docker-compose.svg)

bite/telemetry/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.1.7 on 2021-03-25 10:55
+# Generated by Django 3.1.3 on 2021-03-19 08:08
 
 import django.core.validators
 from django.db import migrations, models
@@ -18,7 +18,7 @@ class Migration(migrations.Migration):
         migrations.CreateModel(
             name='Telemetry',
             fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('id', models.AutoField(primary_key=True, serialize=False)),
                 ('time', models.DateTimeField(auto_now_add=True, db_index=True)),
                 ('transport', models.CharField(choices=[('http', 'http'), ('mqtt', 'mqtt')], default='http', max_length=4)),
                 ('clock', models.IntegerField(null=True, validators=[django.core.validators.MinValueValidator(0)])),
@@ -28,7 +28,6 @@ class Migration(migrations.Migration):
             options={
                 'verbose_name_plural': 'Telemetry',
                 'ordering': ['-time', 'device'],
-                'unique_together': {('time', 'device')},
             },
         ),
     ]

bite/telemetry/migrations/0002_timescale.py

@@ -1,24 +0,0 @@
-# Generated by Django 3.1.7 on 2021-03-25 10:55
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('telemetry', '0001_initial'),
-    ]
-
-    # Timescale requires an hyperscale table to have the field used for the
-    # partitioning ('time') to be in the any UNIQUE constraint.
-    # Because of that we have a unique_together on 'time' and 'device',
-    # however Django always adds an 'id' as PRIMARY_KEY.
-    # Django's 'id' isn't used as a foreign key, so we are dropping
-    # the contraint and simply adding an index to the 'id' column.
-    # We can now create the hypertable.
-    operations = [
-        migrations.RunSQL(
-            "ALTER TABLE telemetry_telemetry DROP CONSTRAINT telemetry_telemetry_pkey ;"  # noqa: E501
-            "CREATE INDEX telemetry_telemetry_id_idx ON telemetry_telemetry(id);"  # noqa: E501
-            "SELECT create_hypertable('telemetry_telemetry', 'time');"),
-    ]

bite/telemetry/models.py

@@ -30,6 +30,7 @@ def telemetry_validation(value):
 
 
 class Telemetry(models.Model):
+    id = models.AutoField(primary_key=True)
     device = models.ForeignKey(Device, on_delete=models.CASCADE)
     time = models.DateTimeField(db_index=True, auto_now_add=True)
     transport = models.CharField(max_length=4,
@@ -42,7 +43,6 @@ class Telemetry(models.Model):
 
     class Meta:
         ordering = ['-time', 'device']
-        unique_together = ['time', 'device']
         verbose_name_plural = "Telemetry"
 
     def __str__(self):

bite/telemetry/views.py

@@ -17,10 +17,9 @@
 # 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 datetime import datetime
 from django.http import Http404
 from django.utils import timezone
-from django.utils.dateparse import parse_date, parse_datetime
+from django.utils.dateparse import parse_datetime
 from rest_framework.views import APIView
 from rest_framework.viewsets import ModelViewSet
 
@@ -70,16 +69,12 @@ class TelemetryRange(ModelViewSet):
     lookup_field = 'device'
 
     @staticmethod
-    def datetime_validation(time):
-        parsed_datetime = parse_datetime(time)
-        if parsed_datetime is None:
-            parsed_datetime = parse_date(time)
+    def datetime_validation(datetime):
+        parsed_datetime = parse_datetime(datetime)
         if parsed_datetime is None:
             raise ParseError({
                 datetime: 'Invalid date format'
             })
-            parsed_datetime = datetime.combine(
-                parsed_datetime, datetime.min.time())
         return timezone.make_aware(parsed_datetime)
 
     def list(self, request, device, time_from, time_to=None):

docs/.badges/python.svg

@@ -1 +1 @@
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