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from django.contrib.gis.db import models
from django.utils.text import slugify
__all__ = [
'Location',
'LocatedFile',
'BoxedLocation',
'GeometryModel',
'Nullable',
'PointModel',
'LineStringModel',
'PolygonModel',
'MultiPolygonModel',
'MultiLineStringModel',
'MultiPointModel',
]
class BaseModel(models.Model):
name = models.CharField(max_length=32)
slug = models.SlugField(max_length=128, unique=True, blank=True)
timestamp = models.DateTimeField(null=True, blank=True)
class Meta:
abstract = True
def __str__(self):
return self.name
def _generate_slug(self):
if self.slug == '' or self.slug is None:
try:
name = str(self.name)
except NameError:
name = self.name
self.slug = slugify(name)
def clean(self):
self._generate_slug()
def save(self, *args, **kwargs):
self._generate_slug()
super().save(*args, **kwargs)
class BaseModelGeometry(BaseModel):
class Meta:
abstract = True
geometry = models.GeometryField()
class Location(BaseModelGeometry):
pass
class LocatedFile(BaseModelGeometry):
file = models.FileField(upload_to='located_files', blank=True, null=True)
class BoxedLocation(BaseModelGeometry):
bbox_geometry = models.PolygonField()
class Nullable(BaseModel):
geometry = models.GeometryField(blank=True, null=True)
class SchemaBaseModel(models.Model):
random_field1 = models.CharField(max_length=32)
random_field2 = models.IntegerField()
class Meta:
abstract = True
class PointModel(SchemaBaseModel):
location = models.PointField()
class LineStringModel(SchemaBaseModel):
points = models.LineStringField()
class PolygonModel(SchemaBaseModel):
polygon = models.PolygonField()
class GeometryModel(SchemaBaseModel):
points = models.GeometryField()
class MultiPointModel(SchemaBaseModel):
points = models.MultiPointField()
class MultiLineStringModel(SchemaBaseModel):
points = models.MultiLineStringField()
class MultiPolygonModel(SchemaBaseModel):
polygon = models.MultiPolygonField()
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