add WifiMeasurement model

src/c3nav/mapdata/migrations/0058_wifimeasurement.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.6 on 2017-12-16 11:42
+from __future__ import unicode_literals
+
+import c3nav.mapdata.fields
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('mapdata', '0057_waytype_fields'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='WifiMeasurement',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('geometry', c3nav.mapdata.fields.GeometryField(default=None, geomtype='point')),
+                ('comment', models.TextField(blank=True, null=True, verbose_name='comment')),
+                ('data', c3nav.mapdata.fields.JSONField(verbose_name='Measurement list')),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='wifi_measurements', to=settings.AUTH_USER_MODEL, verbose_name='author')),
+                ('space', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='wifi_measurements', to='mapdata.Space', verbose_name='space')),
+            ],
+            options={
+                'verbose_name': 'Wi-Fi Measurement',
+                'verbose_name_plural': 'Wi-Fi Measurements',
+                'default_related_name': 'wifi_measurements',
+            },
+        ),
+    ]

src/c3nav/mapdata/models/geometry/space.py

@@ -1,5 +1,6 @@
 from decimal import Decimal
 
+from django.conf import settings
 from django.core.validators import MinValueValidator
 from django.db import models
 from django.urls import reverse
@@ -8,7 +9,7 @@ from django.utils.text import format_lazy
 from django.utils.translation import ugettext_lazy as _
 from shapely.geometry import CAP_STYLE, JOIN_STYLE, mapping
 
-from c3nav.mapdata.fields import GeometryField
+from c3nav.mapdata.fields import GeometryField, JSONField
 from c3nav.mapdata.models.geometry.base import GeometryMixin
 from c3nav.mapdata.models.locations import SpecificLocation
 from c3nav.mapdata.utils.cache.changes import changed_geometries
@@ -240,3 +241,18 @@ class AltitudeMarker(SpaceGeometryMixin, models.Model):
     @property
     def title(self):
         return '%s (%sm)' % (super().title, self.altitude)
+
+
+class WifiMeasurement(SpaceGeometryMixin, models.Model):
+    """
+    A Wi-Fi measurement
+    """
+    geometry = GeometryField('point')
+    author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, verbose_name=_('author'))
+    comment = models.TextField(null=True, blank=True, verbose_name=_('comment'))
+    data = JSONField(_('Measurement list'))
+
+    class Meta:
+        verbose_name = _('Wi-Fi Measurement')
+        verbose_name_plural = _('Wi-Fi Measurements')
+        default_related_name = 'wifi_measurements'