232 lines
9.1 KiB
Python
232 lines
9.1 KiB
Python
"""Establishment models."""
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from functools import reduce
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from django.contrib.contenttypes import fields as generic
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from django.core.exceptions import ValidationError
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from django.db import models
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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from location.models import Address
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from utils.models import (ProjectBaseMixin, ImageMixin, TJSONField,
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TraslatedFieldsMixin, BaseAttributes)
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# todo: establishment type&subtypes check
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class EstablishmentType(ProjectBaseMixin, TraslatedFieldsMixin):
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"""Establishment type model."""
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name = TJSONField(blank=True, null=True, default=None, verbose_name=_('Description'),
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help_text='{"en":"some text"}')
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use_subtypes = models.BooleanField(_('Use subtypes'), default=True)
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class Meta:
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"""Meta class."""
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verbose_name = _('Establishment type')
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verbose_name_plural = _('Establishment types')
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class EstablishmentSubTypeManager(models.Manager):
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"""Extended manager for establishment subtype."""
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def make(self, name, establishment_type):
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obj = self.model(name=name, establishment_type=establishment_type)
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obj.full_clean()
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obj.save()
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return obj
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class EstablishmentSubType(ProjectBaseMixin, TraslatedFieldsMixin):
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"""Establishment type model."""
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name = TJSONField(blank=True, null=True, default=None, verbose_name=_('Description'),
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help_text='{"en":"some text"}')
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establishment_type = models.ForeignKey(EstablishmentType,
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on_delete=models.CASCADE,
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verbose_name=_('Type'))
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objects = EstablishmentSubTypeManager()
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class Meta:
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"""Meta class."""
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verbose_name = _('Establishment subtype')
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verbose_name_plural = _('Establishment subtypes')
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def clean_fields(self, exclude=None):
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if not self.establishment_type.use_subtypes:
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raise ValidationError(_('Establishment type is not use subtypes.'))
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class EstablishmentQuerySet(models.QuerySet):
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"""Extended queryset for Establishment model."""
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def search(self, value, locale=None):
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"""Search text in JSON fields."""
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if locale is not None:
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filters = [
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{f'name__{locale}__icontains': value},
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{f'description__{locale}__icontains': value}
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]
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return self.filter(reduce(lambda x, y: x | y, [models.Q(**i) for i in filters]))
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else:
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return self.none()
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def prefetch_actual_employees(self):
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"""Prefetch actual employees."""
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return self.prefetch_related(
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models.Prefetch('establishmentemployee_set',
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queryset=EstablishmentEmployee.objects.actual().select_related(
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'position'),
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to_attr='actual_establishment_employees'))
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class Establishment(ProjectBaseMixin, ImageMixin, TraslatedFieldsMixin):
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"""Establishment model."""
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name = TJSONField(blank=True, null=True, default=None,
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verbose_name=_('Name'), help_text='{"en":"some text"}')
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description = TJSONField(blank=True, null=True, default=None,
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verbose_name=_('Description'),
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help_text='{"en":"some text"}')
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public_mark = models.PositiveIntegerField(blank=True, null=True,
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default=None,
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verbose_name=_('Public mark'),)
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toque_number = models.PositiveIntegerField(blank=True, null=True,
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default=None,
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verbose_name=_('Toque number'),)
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establishment_type = models.ForeignKey(EstablishmentType,
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related_name='establishment',
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on_delete=models.PROTECT,
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verbose_name=_('Type'))
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establishment_subtypes = models.ManyToManyField(EstablishmentSubType,
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related_name='subtype_establishment',
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verbose_name=_('Subtype'))
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address = models.ForeignKey(Address, blank=True, null=True, default=None,
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on_delete=models.PROTECT,
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verbose_name=_('Address'))
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price_level = models.PositiveIntegerField(blank=True, null=True,
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default=None,
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verbose_name=_('Price level'))
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awards = generic.GenericRelation(to='main.Award')
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tags = generic.GenericRelation(to='main.MetaDataContent')
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objects = EstablishmentQuerySet.as_manager()
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class Meta:
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"""Meta class."""
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verbose_name = _('Establishment')
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verbose_name_plural = _('Establishments')
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# todo: recalculate toque_number
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def recalculate_toque_number(self):
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self.toque_number = 4
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def recalculate_price_level(self, low_price=None, high_price=None):
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if low_price is None or high_price is None:
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low_price, high_price = self.get_price_level()
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# todo: calculate price level
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self.price_level = 3
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def get_price_level(self):
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country = self.address.city.country
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return country.low_price, country.high_price
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# todo: make via prefetch
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@property
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def subtypes(self):
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return EstablishmentSubType.objects.filter(
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subtype_establishment=self,
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establishment_type=self.establishment_type,
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establishment_type__use_subtypes=True)
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def set_establishment_type(self, establishment_type):
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self.establishment_type = establishment_type
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self.establishment_subtypes.exclude(
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establishement_type=establishment_type).delete()
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def add_establishment_subtype(self, establishment_subtype):
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if establishment_subtype.establishment_type != self.establishment_type:
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raise ValidationError('Establishment type of subtype does not match')
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self.establishment_subtypes.add(establishment_subtype)
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class Position(BaseAttributes, TraslatedFieldsMixin):
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"""Position model."""
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name = TJSONField(blank=True, null=True, default=None, verbose_name=_('Description'),
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help_text='{"en":"some text"}')
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class Meta:
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"""Meta class."""
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verbose_name = _('Position')
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verbose_name_plural = _('Positions')
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class EstablishmentEmployeeQuerySet(models.QuerySet):
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"""Extended queryset for EstablishmEntemployee model."""
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def actual(self):
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"""Actual objects.."""
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now = timezone.now()
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return self.filter(models.Q(from_date__lte=now),
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(models.Q(to_date__gte=now) |
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models.Q(to_date__isnull=True)))
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class EstablishmentEmployee(BaseAttributes):
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"""EstablishmentEmployee model."""
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establishment = models.ForeignKey(Establishment, on_delete=models.PROTECT,
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verbose_name=_('Establishment'))
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employee = models.ForeignKey('establishment.Employee', on_delete=models.PROTECT,
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verbose_name=_('Employee'))
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from_date = models.DateTimeField(default=timezone.now, verbose_name=_('From date'))
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to_date = models.DateTimeField(blank=True, null=True, default=None,
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verbose_name=_('To date'))
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position = models.ForeignKey(Position, on_delete=models.PROTECT,
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verbose_name=_('Position'))
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objects = EstablishmentEmployeeQuerySet.as_manager()
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class Employee(BaseAttributes):
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"""Employee model."""
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user = models.OneToOneField('account.User', on_delete=models.PROTECT,
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null=True, blank=True, default=None,
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verbose_name=_('User'))
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name = models.CharField(max_length=255, verbose_name=_('Last name'))
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establishments = models.ManyToManyField(Establishment, related_name='employees',
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through=EstablishmentEmployee)
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awards = generic.GenericRelation(to='main.Award')
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tags = generic.GenericRelation(to='main.MetaDataContent')
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class Meta:
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"""Meta class."""
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verbose_name = _('Employee')
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verbose_name_plural = _('Employees')
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class EstablishmentScheduleQuerySet(models.QuerySet):
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"""QuerySet for model EstablishmentSchedule"""
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class EstablishmentSchedule(BaseAttributes):
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"""Establishment schedule model."""
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establishment = models.OneToOneField(Establishment,
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related_name='schedule',
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on_delete=models.CASCADE,
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verbose_name=_('Establishment'))
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schedule = models.ManyToManyField(to='timetable.Timetable',
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verbose_name=_('Establishment schedule'))
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objects = EstablishmentScheduleQuerySet.as_manager()
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class Meta:
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"""Meta class"""
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verbose_name = _('Establishment schedule')
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verbose_name_plural = _('Establishment schedules')
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