gault-millau/apps/location/models.py
Виктор Гладких a6c56a4bf1 Fix and refactor
2019-10-11 14:49:32 +03:00

126 lines
4.1 KiB
Python

"""Location app models."""
from django.conf import settings
from django.contrib.gis.db import models
from django.db.models.signals import post_save
from django.db.transaction import on_commit
from django.dispatch import receiver
from django.utils.translation import gettext_lazy as _
from utils.models import ProjectBaseMixin, SVGImageMixin, TranslatedFieldsMixin, TJSONField
from translation.models import Language
class Country(TranslatedFieldsMixin, SVGImageMixin, ProjectBaseMixin):
"""Country model."""
STR_FIELD_NAME = 'name'
name = TJSONField(null=True, blank=True, default=None,
verbose_name=_('Name'), help_text='{"en-GB":"some text"}')
code = models.CharField(max_length=255, unique=True, verbose_name=_('Code'))
low_price = models.IntegerField(default=25, verbose_name=_('Low price'))
high_price = models.IntegerField(default=50, verbose_name=_('High price'))
languages = models.ManyToManyField(Language, verbose_name=_('Languages'))
class Meta:
"""Meta class."""
verbose_name_plural = _('Countries')
verbose_name = _('Country')
class Region(models.Model):
"""Region model."""
name = models.CharField(_('name'), max_length=250)
code = models.CharField(_('code'), max_length=250)
parent_region = models.ForeignKey(
'self', verbose_name=_('parent region'), null=True,
blank=True, default=None, on_delete=models.CASCADE)
country = models.ForeignKey(
Country, verbose_name=_('country'), on_delete=models.CASCADE)
class Meta:
"""Meta class."""
verbose_name_plural = _('regions')
verbose_name = _('region')
def __str__(self):
return self.name
class City(models.Model):
"""Region model."""
name = models.CharField(_('name'), max_length=250)
code = models.CharField(_('code'), max_length=250)
region = models.ForeignKey(
Region, verbose_name=_('parent region'), on_delete=models.CASCADE)
country = models.ForeignKey(
Country, verbose_name=_('country'), on_delete=models.CASCADE)
postal_code = models.CharField(
_('postal code'), max_length=10, default='', help_text=_('Ex.: 350018'))
is_island = models.BooleanField(_('is island'), default=False)
class Meta:
verbose_name_plural = _('cities')
verbose_name = _('city')
def __str__(self):
return self.name
class Address(models.Model):
"""Address model."""
city = models.ForeignKey(City, verbose_name=_('city'), on_delete=models.CASCADE)
street_name_1 = models.CharField(
_('street name 1'), max_length=500, blank=True, default='')
street_name_2 = models.CharField(
_('street name 2'), max_length=500, blank=True, default='')
number = models.IntegerField(_('number'))
postal_code = models.CharField(
_('postal code'), max_length=10, blank=True,
default='', help_text=_('Ex.: 350018'))
coordinates = models.PointField(
_('Coordinates'), blank=True, null=True, default=None)
class Meta:
"""Meta class."""
verbose_name_plural = _('Address')
verbose_name = _('Address')
def __str__(self):
return f'{self.id}: {self.get_street_name()[:50]}'
def get_street_name(self):
return self.street_name_1 or self.street_name_2
@property
def latitude(self):
return self.coordinates.y if self.coordinates else float(0)
@property
def longitude(self):
return self.coordinates.x if self.coordinates else float(0)
@property
def location_field_indexing(self):
return {'lat': self.latitude,
'lon': self.longitude}
# todo: Make recalculate price levels
@receiver(post_save, sender=Country)
def run_recalculate_price_levels(sender, instance, **kwargs):
from establishment.tasks import recalculate_price_levels_by_country
if settings.USE_CELERY:
on_commit(lambda: recalculate_price_levels_by_country.delay(
country_id=instance.id))
else:
on_commit(lambda: recalculate_price_levels_by_country(
country_id=instance.id))