schon/geo/models.py

392 lines
13 KiB
Python

import uuid
from random import choice
from string import ascii_uppercase, digits
import swapper
from django.contrib.gis.db.models import PointField
from django.contrib.gis.geos import Point
from django.db import models, transaction
from django.utils.encoding import force_str as force_text
from django.utils.translation import gettext_lazy as _
from model_utils import Choices
from core.abstract import NiceModel
from .conf import ALTERNATIVE_NAME_TYPES, SLUGIFY_FUNCTION
from .managers import AlternativeNameManager
from .util import unicode_func
__all__ = [
"Address",
"AlternativeName",
"City",
"Continent",
"Country",
"District",
"Point",
"PostalCode",
"Region",
"Subregion",
]
from django.db.models import PROTECT, BooleanField, Model, UUIDField
from django.db.models import Manager as GeoManager
slugify_func = SLUGIFY_FUNCTION
def SET_NULL_OR_CASCADE(collector, field, sub_objs, using): # noqa: N802
if field.null is True:
models.SET_NULL(collector, field, sub_objs, using)
else:
models.CASCADE(collector, field, sub_objs, using)
class SlugModel(Model):
slug = models.CharField(blank=True, max_length=255, null=True) # noqa: DJ001
uuid = UUIDField(verbose_name=_("UUID"), default=uuid.uuid4, editable=False)
active = BooleanField(default=True, verbose_name=_("active"))
class Meta:
abstract = True
def slugify(self):
raise NotImplementedError(_("subclasses_of_place_must_implement_slugify"))
def save(self, *args, **kwargs):
self.slug = slugify_func(self, self.slugify())
# If the slug contains the object's ID and we are creating a new object,
# save it twice: once to get an ID, another to set the object's slug
if self.slug is None and getattr(self, "slug_contains_id", False):
with transaction.atomic():
# We first give a randomized slug with a prefix just in case
# users need to find invalid slugs
self.slug = "invalid-{}".format("".join(choice(ascii_uppercase + digits) for i in range(20)))
super(SlugModel, self).save(*args, **kwargs) # noqa: UP008
self.slug = slugify_func(self, self.slugify())
# If the 'force_insert' flag was passed, don't pass it again:
# doing so will attempt to re-insert with the same primary key,
# which will cause an IntegrityError.
kwargs.pop("force_insert", None)
super(SlugModel, self).save(*args, **kwargs) # noqa: UP008
else:
# This is a performance optimization - we avoid the transaction if
# the self.slug is not None
super().save(*args, **kwargs)
class Place(Model):
name = models.CharField(max_length=200, db_index=True, verbose_name="ascii name")
alt_names = models.ManyToManyField("AlternativeName")
objects = GeoManager()
class Meta:
abstract = True
@property
def hierarchy(self):
"""Get hierarchy, root first"""
lst = self.parent.hierarchy if self.parent else []
lst.append(self)
return lst
def get_absolute_url(self):
return "/".join([place.slug for place in self.hierarchy])
def __str__(self):
return force_text(self.name)
def save(self, *args, **kwargs):
if hasattr(self, "clean"):
self.clean()
super(Place, self).save(*args, **kwargs) # noqa: UP008
class BaseContinent(Place, SlugModel):
code = models.CharField(max_length=2, unique=True, db_index=True)
def __str__(self):
return force_text(self.name)
class Meta:
abstract = True
def slugify(self):
return self.name
class Continent(BaseContinent):
class Meta(BaseContinent.Meta):
swappable = swapper.swappable_setting("geo", "Continent")
verbose_name = _("continent")
verbose_name_plural = _("continents")
class BaseCountry(Place, SlugModel):
code = models.CharField(max_length=2, db_index=True, unique=True)
code3 = models.CharField(max_length=3, db_index=True, unique=True)
population = models.IntegerField()
area = models.IntegerField(null=True)
currency = models.CharField(max_length=3, null=True) # noqa: DJ001
currency_name = models.CharField(max_length=50, blank=True, null=True) # noqa: DJ001
currency_symbol = models.CharField(max_length=31, blank=True, null=True) # noqa: DJ001
language_codes = models.CharField(max_length=250, null=True) # noqa: DJ001
phone = models.CharField(max_length=20)
continent = models.ForeignKey(
swapper.get_model_name("geo", "Continent"), null=True, related_name="countries", on_delete=SET_NULL_OR_CASCADE
)
tld = models.CharField(max_length=5, verbose_name="TLD")
postal_code_format = models.CharField(max_length=127)
postal_code_regex = models.CharField(max_length=255)
capital = models.CharField(max_length=100)
neighbours = models.ManyToManyField("self")
class Meta:
abstract = True
ordering = ["name"]
verbose_name = _("country")
verbose_name_plural = _("countries")
@property
def parent(self):
return None
def __str__(self):
return force_text(self.name)
def clean(self):
self.tld = self.tld.lower()
def slugify(self):
return self.name
class Country(BaseCountry):
class Meta(BaseCountry.Meta):
swappable = swapper.swappable_setting("geo", "Country")
verbose_name = _("country")
verbose_name_plural = _("countries")
class Region(Place, SlugModel):
name_std = models.CharField(max_length=200, db_index=True, verbose_name="standard name")
code = models.CharField(max_length=200, db_index=True)
country = models.ForeignKey(
swapper.get_model_name("geo", "Country"), related_name="regions", on_delete=SET_NULL_OR_CASCADE
)
class Meta:
unique_together = (("country", "name"),)
verbose_name = _("region")
verbose_name_plural = _("regions")
@property
def parent(self):
return self.country
def full_code(self):
return unicode_func(".".join([self.parent.code, self.code]))
def slugify(self):
return f"{unicode_func(self.name)}_({unicode_func(self.full_code())})"
class Subregion(Place, SlugModel):
slug_contains_id = True
name_std = models.CharField(max_length=200, db_index=True, verbose_name="standard name")
code = models.CharField(max_length=200, db_index=True)
region = models.ForeignKey(Region, related_name="subregions", on_delete=SET_NULL_OR_CASCADE)
class Meta:
unique_together = (("region", "id", "name"),)
verbose_name = _("subregion")
verbose_name_plural = _("subregions")
@property
def parent(self):
return self.region
def full_code(self):
return ".".join([self.parent.parent.code, self.parent.code, self.code])
def slugify(self):
return unicode_func("{}-{}").format(unicode_func(self.id), unicode_func(self.name))
class BaseCity(Place, SlugModel):
slug_contains_id = True
name_std = models.CharField(max_length=200, db_index=True, verbose_name="standard name")
country = models.ForeignKey(
swapper.get_model_name("geo", "Country"), related_name="geo", on_delete=SET_NULL_OR_CASCADE
)
region = models.ForeignKey(Region, null=True, blank=True, related_name="geo", on_delete=SET_NULL_OR_CASCADE)
subregion = models.ForeignKey(Subregion, null=True, blank=True, related_name="geo", on_delete=SET_NULL_OR_CASCADE)
location = PointField()
population = models.IntegerField()
elevation = models.IntegerField(null=True)
kind = models.CharField(max_length=10) # http://www.geonames.org/export/codes.html
timezone = models.CharField(max_length=40)
class Meta:
abstract = True
unique_together = (("country", "region", "subregion", "id", "name"),)
verbose_name = _("city")
verbose_name_plural = _("cities")
@property
def parent(self):
return self.region
def slugify(self):
if self.id:
return f"{self.id}-{unicode_func(self.name)}"
return None
class City(BaseCity):
class Meta(BaseCity.Meta):
swappable = swapper.swappable_setting("geo", "City")
verbose_name = _("city")
verbose_name_plural = _("cities")
class District(Place, SlugModel):
slug_contains_id = True
name_std = models.CharField(max_length=200, db_index=True, verbose_name="standard name")
code = models.CharField(blank=True, db_index=True, max_length=200, null=True) # noqa: DJ001
location = PointField()
population = models.IntegerField()
city = models.ForeignKey(
swapper.get_model_name("geo", "City"), related_name="districts", on_delete=SET_NULL_OR_CASCADE
)
class Meta:
unique_together = (("city", "name"),)
verbose_name = _("district")
verbose_name_plural = _("districts")
@property
def parent(self):
return self.city
def slugify(self):
if self.id:
return f"{self.id}-{unicode_func(self.name)}"
return None
class AlternativeName(SlugModel):
slug_contains_id = True
KIND = Choices(*ALTERNATIVE_NAME_TYPES)
name = models.CharField(max_length=255)
kind = models.CharField(max_length=4, choices=KIND, default=KIND.name)
language_code = models.CharField(max_length=100)
is_preferred = models.BooleanField(default=False)
is_short = models.BooleanField(default=False)
is_colloquial = models.BooleanField(default=False)
is_historic = models.BooleanField(default=False)
objects = AlternativeNameManager()
def __str__(self):
return f"{force_text(self.name)} ({force_text(self.language_code)})"
def slugify(self):
return None or f"{self.id}-{unicode_func(self.name)}"
class PostalCode(Place, SlugModel):
slug_contains_id = True
code = models.CharField(max_length=20)
location = PointField()
country = models.ForeignKey(
swapper.get_model_name("geo", "Country"), related_name="postal_codes", on_delete=SET_NULL_OR_CASCADE
)
# Region names for each admin level, region may not exist in DB
region_name = models.CharField(max_length=100, db_index=True)
subregion_name = models.CharField(max_length=100, db_index=True)
district_name = models.CharField(max_length=100, db_index=True)
region = models.ForeignKey(
Region, blank=True, null=True, related_name="postal_codes", on_delete=SET_NULL_OR_CASCADE
)
subregion = models.ForeignKey(
Subregion, blank=True, null=True, related_name="postal_codes", on_delete=SET_NULL_OR_CASCADE
)
city = models.ForeignKey(
swapper.get_model_name("geo", "City"),
blank=True,
null=True,
related_name="postal_codes",
on_delete=SET_NULL_OR_CASCADE,
)
district = models.ForeignKey(
District, blank=True, null=True, related_name="postal_codes", on_delete=SET_NULL_OR_CASCADE
)
objects = GeoManager()
class Meta:
unique_together = (
("country", "region", "subregion", "city", "district", "name", "id", "code"),
("country", "region_name", "subregion_name", "district_name", "name", "id", "code"),
)
verbose_name = _("postal code")
verbose_name_plural = _("postal codes")
@property
def parent(self):
return self.country
@property
def name_full(self):
"""Get full name including hierarchy"""
return force_text(", ".join(reversed(self.names)))
@property
def names(self):
"""Get a hierarchy of non-null names, root first"""
return [
e
for e in [
force_text(self.country),
force_text(self.region_name),
force_text(self.subregion_name),
force_text(self.district_name),
force_text(self.name),
]
if e
]
def __str__(self):
return force_text(self.code)
def slugify(self):
return None or f"{self.id}-{unicode_func(self.code)}"
class Address(NiceModel):
street = models.CharField(max_length=255)
city = models.ForeignKey("geo.City", on_delete=PROTECT, blank=False, null=False)
region = models.ForeignKey("geo.Region", on_delete=PROTECT, blank=False, null=False)
postal_code = models.ForeignKey("geo.PostalCode", on_delete=PROTECT, blank=False, null=False)
country = models.ForeignKey("geo.Country", on_delete=PROTECT, blank=False, null=False)
location = PointField(geography=True, null=True)
user = models.ForeignKey(to="vibes_auth.User", on_delete=models.CASCADE, blank=False, null=True)
def __str__(self):
return f"{self.street}, {self.city}, {self.country}"
class Meta:
verbose_name = _("address")
verbose_name_plural = _("addresses")