Backend team - Sprint 2

.flake8

@@ -1,3 +1,7 @@
 [flake8]
 max-line-length = 92
-exclude = tests/*
+exclude =
+    .git,
+    __pycache__,
+    venv
+    **/migrations

.travis.yml

@@ -30,11 +30,11 @@ before_script:
 - python manage.py collectstatic --noinput
 
 script:
-- black . --check
-- flake8 --exclude tests mysite/ mercury/
-- flake8 --ignore=E501 mercury/tests/
-- coverage run --source=mysite,mercury --omit="mercury/migrations/*" manage.py test
+- black --check --exclude "migrations/" mysite mercury ag_data
+- flake8 mysite/ mercury/ ag_data/
+- coverage run --source=mysite,mercury,ag_data --omit="migrations/*" manage.py test
 
 after_script:
 - coveralls
 - cat geckodriver.log
+

ag_data/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AgDataConfig(AppConfig):
+    name = "ag_data"

ag_data/migrations/0001_initial.py

@@ -0,0 +1,69 @@
+# Generated by Django 2.2.11 on 2020-03-11 00:36
+
+import django.contrib.postgres.fields.jsonb
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='AGEvent',
+            fields=[
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(blank=True, max_length=40)),
+                ('date', models.DateTimeField(default=django.utils.timezone.now)),
+                ('description', models.CharField(blank=True, max_length=100)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AGSensorType',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('name', models.CharField(blank=True, max_length=1024)),
+                ('processing_formula', models.IntegerField(default=0)),
+                ('format', django.contrib.postgres.fields.jsonb.JSONField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AGVenue',
+            fields=[
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(blank=True, max_length=100)),
+                ('description', models.CharField(blank=True, max_length=100)),
+                ('latitude', models.DecimalField(blank=True, decimal_places=6, max_digits=9, null=True)),
+                ('longitude', models.DecimalField(blank=True, decimal_places=6, max_digits=9, null=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AGSensor',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('name', models.CharField(blank=True, max_length=1024)),
+                ('type_id', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='ag_data.AGSensorType')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AGMeasurement',
+            fields=[
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('timestamp', models.DateTimeField(default=django.utils.timezone.now)),
+                ('value', django.contrib.postgres.fields.jsonb.JSONField()),
+                ('event_uuid', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ag_data.AGEvent')),
+                ('sensor_id', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ag_data.AGSensor')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='agevent',
+            name='venue_uuid',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='ag_data.AGVenue'),
+        ),
+    ]

ag_data/models.py

@@ -0,0 +1,67 @@
+from django.db import models
+from django.contrib.postgres.fields import JSONField
+import uuid
+from django.utils import timezone
+
+
+class AGVenue(models.Model):
+    """Store the venue where events happens, including name, description, latitude and
+    longtitude.
+    """
+
+    uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    name = models.CharField(max_length=100, blank=True)
+    description = models.CharField(max_length=100, null=False, blank=True)
+    latitude = models.DecimalField(
+        max_digits=9, decimal_places=6, blank=True, null=True
+    )
+    longitude = models.DecimalField(
+        max_digits=9, decimal_places=6, blank=True, null=True
+    )
+
+
+class AGEvent(models.Model):
+    """Stores the information about events including name, date and description.
+    """
+
+    uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    name = models.CharField(max_length=40, blank=True)
+    date = models.DateTimeField(default=timezone.now)
+    description = models.CharField(max_length=100, null=False, blank=True)
+    venue_uuid = models.ForeignKey(AGVenue, null=True, on_delete=models.SET_NULL)
+
+
+class AGSensorType(models.Model):
+    """Stores the information about sensor types which is used to provide a sensor template
+    and related formula for different types of sensors.
+    """
+
+    id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=1024, blank=True)
+    processing_formula = models.IntegerField(default=0, null=False)
+    format = JSONField()
+
+
+class AGSensor(models.Model):
+    """Stores the information about sensors including name and type id.
+    """
+
+    id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=1024, blank=True)
+    type_id = models.ForeignKey(AGSensorType, null=False, on_delete=models.PROTECT)
+
+
+class AGMeasurement(models.Model):
+    """Stores the information about sensor measurements, including timestamp, event, sensor
+    id and measurement values.
+    """
+
+    uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    timestamp = models.DateTimeField(default=timezone.now, blank=False)
+    event_uuid = models.ForeignKey(
+        AGEvent, on_delete=models.CASCADE, blank=False, null=False
+    )
+    sensor_id = models.ForeignKey(
+        AGSensor, on_delete=models.CASCADE, blank=False, null=False
+    )
+    value = JSONField()

ag_data/presets.py

@@ -0,0 +1,52 @@
+venue_presets = [
+    {
+        "agVenueName": "Washington Square Park",
+        "agVenueDescription": "Sunnyside Daycare's Butterfly Room.",
+        "agVenueLatitude": 40.730812,
+        "agVenueLongitude": -73.997456,
+    },
+    {
+        "agVenueName": "Central Park",
+        "agVenueDescription": "Muddy Puddles",
+        "agVenueLatitude": 40.794692,
+        "agVenueLongitude": -73.959156,
+    },
+]
+
+event_presets = [
+    {
+        "agEventName": "Sunny Day Test Drive",
+        "agEventDate": "2020-02-02T20:21:22",
+        "agEventDescription": "A very progressive test run at "
+        "Sunnyside Daycare's Butterfly Room.",
+    },
+    {
+        "agEventName": "Peppa Pig Muddy Puddles",
+        "agEventDate": "2020-03-01T00:34:57",
+        "agEventDescription": "George, "
+        "if you jump in muddy puddles, you must wear your boots.",
+    },
+]
+
+sensor_type_presets = [
+    {
+        "agSensorTypeID": 0,
+        "agSensorTypeName": "Simple Temperature Sensor",
+        "agSensorTypeFormula": 0,
+        "agSensorTypeFormat": {"reading": {"unit": "Celsius", "format": "float"}},
+    },
+    {
+        "agSensorTypeID": 1,
+        "agSensorTypeName": "Dual Temperature Sensor",
+        "agSensorTypeFormula": 0,
+        "agSensorTypeFormat": {
+            "internal": {"unit": "Keivin", "format": "float"},
+            "external": {"unit": "Keivin", "format": "float"},
+        },
+    },
+]
+
+sensor_presets = [
+    {"agSensorName": "Sample Simple Temperature", "agSensorType": 0},
+    {"agSensorName": "Sample Dual Temperature", "agSensorType": 1},
+]