add RangingBeacon to mapdata

src/c3nav/mapdata/migrations/0087_rangingbeacon.py

@@ -0,0 +1,84 @@
+# Generated by Django 4.2.1 on 2023-11-10 17:53
+
+import c3nav.mapdata.fields
+from decimal import Decimal
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("mapdata", "0086_django_4_0"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="RangingBeacon",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "import_tag",
+                    models.CharField(
+                        blank=True, max_length=32, null=True, verbose_name="import tag"
+                    ),
+                ),
+                (
+                    "geometry",
+                    c3nav.mapdata.fields.GeometryField(default=None, geomtype="point"),
+                ),
+                (
+                    "bssid",
+                    models.CharField(
+                        max_length=17,
+                        unique=True,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                code="invalid_bssid",
+                                message="Must be a lower-case bssid",
+                                regex="^([a-f0-9]{2}:){5}[a-f0-9]{2}$",
+                            )
+                        ],
+                        verbose_name="BSSID",
+                    ),
+                ),
+                (
+                    "altitude",
+                    models.DecimalField(
+                        decimal_places=2,
+                        default=0,
+                        max_digits=6,
+                        validators=[
+                            django.core.validators.MinValueValidator(Decimal("0"))
+                        ],
+                        verbose_name="altitude above ground",
+                    ),
+                ),
+                (
+                    "comment",
+                    models.TextField(blank=True, null=True, verbose_name="comment"),
+                ),
+                (
+                    "space",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="mapdata.space",
+                        verbose_name="space",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Ranging beacon",
+                "verbose_name_plural": "Ranging beacons",
+                "default_related_name": "ranging_beacons",
+            },
+        ),
+    ]

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

@@ -2,7 +2,7 @@ from decimal import Decimal
 
 from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist
-from django.core.validators import MinValueValidator
+from django.core.validators import MinValueValidator, RegexValidator
 from django.db import models
 from django.urls import reverse
 from django.utils.functional import cached_property
@@ -398,3 +398,38 @@ class WifiMeasurement(SpaceGeometryMixin, models.Model):
     @property
     def geometry_changed(self):
         return False
+
+
+class RangingBeacon(SpaceGeometryMixin, models.Model):
+    """
+    A ranging beacon
+    """
+    geometry = GeometryField('point')
+    bssid = models.CharField(_('BSSID'), max_length=17, unique=True,
+                             validators=[RegexValidator(
+                                 regex='^([a-f0-9]{2}:){5}[a-f0-9]{2}$',
+                                 message='Must be a lower-case bssid',
+                                 code='invalid_bssid'
+                             )])
+    altitude = models.DecimalField(_('altitude above ground'), max_digits=6, decimal_places=2, default=0,
+                                   validators=[MinValueValidator(Decimal('0'))])
+    comment = models.TextField(null=True, blank=True, verbose_name=_('comment'))
+
+    class Meta:
+        verbose_name = _('Ranging beacon')
+        verbose_name_plural = _('Ranging beacons')
+        default_related_name = 'ranging_beacons'
+
+    @property
+    def all_geometry_changed(self):
+        return False
+
+    @property
+    def geometry_changed(self):
+        return False
+
+    @property
+    def title(self):
+        if self.comment:
+            return f'{self.bssid} ({self.comment})'
+        return self.bssid