class Location(models.Model):
site_description = models.TextField(blank=True, null=True, default='')
reservation = models.ForeignKey(Reservation, on_delete=models.SET_NULL, blank=True, null=True)
watershed = models.ForeignKey(Watershed, on_delete=models.SET_NULL, blank=True, null=True)
directions = models.TextField(blank=True, null=True, default='')
polygon = PolygonField(null=True)
class Meta:
abstract = True
class Location(models.Model):
site_description = models.TextField(blank=True, null=True, default='')
reservation = JSONField(blank=True, null=True)
watershed = JSONField(blank=True, null=True)
directions = models.TextField(blank=True, null=True, default='')
polygon = PolygonField(null=True)
class Meta:
abstract = True
def __str__(self):
reservation = ", ".join(self.reservation) if self.reservation else None
watershed = ", ".join(self.watershed) if self.watershed else None
return "Reservation: {} - Watershed: {}".format(reservation, watershed)
class Migration(migrations.Migration):
initial = True
dependencies = [("people", "0001_creer_modeles")]
operations = [
migrations.CreateModel(
name="Segment",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
("name", models.CharField(max_length=255, verbose_name="Nom")),
(
"support_group_status",
models.CharField(
blank=True,
choices=[
("m", "Membres de GA"),
("M", "Animateurices et gestionnaires de GA"),
("R", "Animateurices de GA"),
],
max_length=1,
verbose_name="Statut GA",
),
),
(
"area",
PolygonField(blank=True,
null=True,
srid=4326,
verbose_name="Territoire"),
),
("tags",
models.ManyToManyField(blank=True, to="people.PersonTag")),
],
bases=(nuntius.models.BaseSegment, models.Model),
)
]
class AreaModel(TimeStampedModel):
polygon = PolygonField()
objects = GeoManager()
class Meta(TimeStampedModel.Meta):
abstract = True
def get_center(self):
return self.polygon.centroid
def center(): #@NoSelf
doc = """The center latitude and longitude of the area. This is only accurate for very small geographic areas.""" #@UnusedVariable
def fget(self):
return self.get_center()
return locals()
center = property(**center())
class Location(models.Model):
event = models.OneToOneField(
Event,
on_delete=models.CASCADE,
)
# NOTE: Coorindates are stored as (lng, lat)
# This is done to match DeckGL's convention
point = PointField(blank=True, null=True)
polygon = PolygonField(blank=True, null=True)
@property
def lng_lat(self):
return [self.point.coords[0], self.point.coords[1]
] if self.point else None
class Meta:
constraints = [
models.CheckConstraint(
name="value_either_point_or_polygon",
check=(models.Q(point__isnull=False, polygon__isnull=True)
| models.Q(point__isnull=True, polygon__isnull=False)))
]