class Answer(TreeNode): objects: AnswerQuerySet = AnswerQuerySet.as_manager() created = models.DateTimeField(auto_now_add=True, db_index=True) modified = models.DateTimeField(null=True, blank=True, db_index=True) slug = models.UUIDField(db_index=True, unique=True, default=uuid.uuid4) question = models.ForeignKey('homework.Question', on_delete=models.CASCADE) author = models.ForeignKey('users.User', on_delete=models.CASCADE) text = MarkdownxField() class Meta: verbose_name = _('Homework answer') verbose_name_plural = _('Homework answers') ordering = ['created'] permissions = [ ('see_all_answers', _('May see answers from every user')), ] def save(self, *args, **kwargs): if self.pk: self.modified = timezone.now() return super().save(*args, **kwargs)
class Answer(TreeNode): objects: AnswerQuerySet = AnswerQuerySet.as_manager() created = models.DateTimeField(auto_now_add=True, db_index=True) modified = models.DateTimeField(auto_now=True, db_index=True) slug = models.UUIDField(db_index=True, unique=True, default=uuid.uuid4) question = models.ForeignKey('homework.Question', on_delete=models.CASCADE) author = models.ForeignKey('users.User', on_delete=models.CASCADE) do_not_crosscheck = models.BooleanField(_('Exclude from cross-checking'), default=False) text = MarkdownxField() class Meta: verbose_name = _('Homework answer') verbose_name_plural = _('Homework answers') ordering = ['created'] permissions = [ ('see_all_answers', _('May see answers from every user')), ] def get_root_answer(self): ancesorts = self.ancestors() if ancesorts.count(): return ancesorts[0] return self def get_absolute_url(self): root = self.get_root_answer() url = urljoin(settings.FRONTEND_URL, f'homework/answers/{root.slug}/') if root != self: url = f'{url}#{self.slug}' # append hash with current answer id return url def get_purchased_course(self): latest_purchase = Order.objects.paid().filter( user=self.author, course__in=self.question.courses.all()).order_by('-paid').first() if latest_purchase: return latest_purchase.course def get_first_level_descendants(self): return self.descendants().filter(parent=self.id) def __str__(self): LENGTH = 30 text = self.text[:LENGTH] if len(text) == LENGTH: text += '...' return text
class PasswordlessAuthToken(TimestampedModel): objects = PasswordlessAuthTokenQuerySet.as_manager() user = models.ForeignKey('users.User', on_delete=models.CASCADE) token = models.UUIDField(default=uuid.uuid4, unique=True, db_index=True) expires = models.DateTimeField(default=default_expiration) used = models.DateTimeField(null=True) def get_absolute_url(self): return urljoin(settings.FRONTEND_URL, '/'.join(['auth', 'passwordless', str(self.token), ''])) def mark_as_used(self): if not settings.DANGEROUSLY_MAKE_ONE_TIME_PASSWORDLESS_TOKEN_MULTI_PASS: self.used = timezone.now() self.save()
class Token(TimestampedModel): objects = TokenQuerySet.as_manager() # type: TokenQuerySet token = models.CharField(max_length=36, default=uuid.uuid4, unique=True, db_index=True) record = models.ForeignKey('courses.Record', on_delete=models.CASCADE) expires = models.DateTimeField(blank=True, null=True) class Meta: verbose_name = _('Onetime token') verbose_name_plural = _('Onetime tokens') def __str__(self): return str(self.token) def download(self): self.expires = timezone.now() + EXPIRATION_TIME self.save() return self.record.get_url()
class CreditNotification(TimestampedModel): """Notification for credit order by TinkoffCredit""" STATUSES_CHOICES = ( ('approved', _('Approved')), ('rejected', _('Rejected')), ('canceled', _('Canceled')), ('signed', _('Signed')), ) order_id = models.IntegerField() status = models.CharField(max_length=32, choices=STATUSES_CHOICES) bank_created = models.DateTimeField() first_payment = models.DecimalField(max_digits=10, decimal_places=2) order_amount = models.DecimalField(max_digits=10, decimal_places=2) credit_amount = models.DecimalField(max_digits=10, decimal_places=2) product = models.CharField(max_length=128) term = models.IntegerField() monthly_payment = models.DecimalField(max_digits=10, decimal_places=2) phone = models.CharField(max_length=64, null=True, blank=True) first_name = models.CharField(max_length=128, null=True, blank=True) last_name = models.CharField(max_length=128, null=True, blank=True) middle_name = models.CharField(max_length=32, blank=True, null=True) loan_number = models.CharField(max_length=128, blank=True, null=True) email = models.CharField(max_length=128, null=True, blank=True)
class Order(TimestampedModel): objects = OrderQuerySet.as_manager() # type: OrderQuerySet user = models.ForeignKey('users.User', on_delete=models.PROTECT) price = models.DecimalField(max_digits=9, decimal_places=2) promocode = models.ForeignKey('orders.PromoCode', verbose_name=_('Promo Code'), blank=True, null=True, on_delete=models.PROTECT) paid = models.DateTimeField( _('Date when order got paid'), null=True, blank=True, help_text=_('If set during creation, order automaticaly gets shipped'), ) shipped = models.DateTimeField(_('Date when order was shipped'), null=True, blank=True) course = ItemField('courses.Course', null=True, blank=True, on_delete=models.PROTECT) record = ItemField('courses.Record', null=True, blank=True, on_delete=models.PROTECT) bundle = ItemField('courses.Bundle', null=True, blank=True, on_delete=models.PROTECT) class Meta: ordering = ['-id'] verbose_name = _('Order') verbose_name_plural = _('Orders') def __str__(self): return f'Order #{self.pk}' @property def item(self): """Find the attached item. Simple replacement for ContentType framework """ for field in self.__class__._meta.get_fields(): if getattr(field, '_is_item', False): if getattr(self, f'{field.name}_id', None) is not None: return getattr(self, field.name) @classmethod def _iterate_items(cls) -> Iterable[models.fields.Field]: for field in cls._meta.get_fields(): if getattr(field, '_is_item', False): yield field @classmethod def get_item_foreignkey(cls, item) -> Optional[models.fields.Field]: """ Given an item model, returns the ForeignKey to it""" for field in cls._iterate_items(): if field.related_model == item.__class__: return field.name def reset_items(self): for field in self._iterate_items(): setattr(self, field.name, None) def set_item(self, item): foreign_key = self.__class__.get_item_foreignkey(item) if foreign_key is not None: self.reset_items() setattr(self, foreign_key, item) return raise UnknownItemException('There is not foreignKey for {}'.format( item.__class__)) def set_paid(self): is_already_paid = self.paid is not None self.paid = timezone.now() self.save() if not is_already_paid and self.item is not None: self.ship() def ship(self): """Ship the order. Better call it asynchronously""" self.item.ship(to=self.user) self.shipped = timezone.now() self.save() order_got_shipped.send( sender=self.__class__, order=self, )
class Order(TimestampedModel): objects = OrderQuerySet.as_manager() # type: OrderQuerySet user = models.ForeignKey('users.User', verbose_name=_('User'), on_delete=models.PROTECT) price = models.DecimalField(_('Price'), max_digits=9, decimal_places=2) promocode = models.ForeignKey('orders.PromoCode', verbose_name=_('Promo Code'), blank=True, null=True, on_delete=models.PROTECT) paid = models.DateTimeField( _('Date when order got paid'), null=True, blank=True, help_text=_('If set during creation, order automaticaly gets shipped'), ) shipped = models.DateTimeField(_('Date when order was shipped'), null=True, blank=True) desired_bank = models.CharField(_('User-requested bank string'), blank=True, max_length=32) course = ItemField(to='products.Course', verbose_name=_('Course'), null=True, blank=True, on_delete=models.PROTECT) record = ItemField(to='products.Record', verbose_name=_('Record'), null=True, blank=True, on_delete=models.PROTECT) bundle = ItemField(to='products.Bundle', verbose_name=_('Bundle'), null=True, blank=True, on_delete=models.PROTECT) giver = models.ForeignKey('users.User', verbose_name=_('Giver'), null=True, blank=True, on_delete=models.SET_NULL, related_name='created_gifts') desired_shipment_date = models.DateTimeField( _('Date when the gift should be shipped'), null=True, blank=True) gift_message = models.TextField(_('Gift message'), default='', blank=True) notification_to_giver_is_sent = models.BooleanField(default=False) class Meta: ordering = ['-id'] verbose_name = _('Order') verbose_name_plural = _('Orders') def __str__(self): return f'Order #{self.pk}' @property def item(self): """Find the attached item. Simple replacement for ContentType framework """ for field in self.__class__._meta.get_fields(): if getattr(field, '_is_item', False): if getattr(self, f'{field.name}_id', None) is not None: return getattr(self, field.name) @classmethod def _iterate_items(cls) -> Iterable[models.fields.Field]: for field in cls._meta.get_fields(): if getattr(field, '_is_item', False): yield field @classmethod def get_item_foreignkey(cls, item) -> Optional[models.fields.Field]: """ Given an item model, returns the ForeignKey to it""" for field in cls._iterate_items(): if field.related_model == item.__class__: return field.name def reset_items(self): for field in self._iterate_items(): setattr(self, field.name, None) def set_item(self, item): foreign_key = self.__class__.get_item_foreignkey(item) if foreign_key is not None: self.reset_items() setattr(self, foreign_key, item) return raise UnknownItemException('There is not foreignKey for {}'.format( item.__class__)) def set_paid(self, silent=False): from orders.services.order_is_paid_setter import Griphook Griphook(self, silent=silent)() def ship(self, silent: bool = False): """Ship the order. Better call it asynchronously""" from orders.services.order_shipper import Pigwidgeon Pigwidgeon(self, silent=silent)()