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72 lines
3.5 KiB
Python
72 lines
3.5 KiB
Python
from django.db import models
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from hub_platform.tenancy.models import TenantRelationModel
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# Коммерческий заказ (ADR-HUB-0018): каталог и факт продажи живут в Хабе,
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# само исполнение (выдача доступа) — на стороне бэкенда продукта. Позиции
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# хранят снимок offer/цены, чтобы запись не «плыла» при изменении каталога.
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class PaymentStatus(models.TextChoices):
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PENDING = "PENDING", "Ожидает оплаты"
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PAID = "PAID", "Оплачен"
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CANCELLED = "CANCELLED", "Отменён"
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REFUNDED = "REFUNDED", "Возврат"
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class FulfillmentStatus(models.TextChoices):
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NONE = "NONE", "Не требуется"
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PENDING = "PENDING", "В процессе"
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DELIVERED = "DELIVERED", "Исполнен"
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FAILED = "FAILED", "Ошибка"
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class Order(models.Model):
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organization = models.ForeignKey("identity.Organization", on_delete=models.PROTECT, related_name="orders")
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contact = models.ForeignKey("conversations.Contact", on_delete=models.PROTECT, related_name="orders")
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conversation = models.ForeignKey("conversations.Conversation", on_delete=models.SET_NULL, null=True, blank=True, related_name="orders")
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product = models.ForeignKey("products.Product", on_delete=models.PROTECT, related_name="orders", null=True, blank=True)
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channel = models.ForeignKey("channels.Channel", on_delete=models.SET_NULL, null=True, blank=True, related_name="orders")
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payment_status = models.CharField(max_length=16, choices=PaymentStatus.choices, default=PaymentStatus.PENDING)
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fulfillment_status = models.CharField(max_length=16, choices=FulfillmentStatus.choices, default=FulfillmentStatus.NONE)
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amount_minor = models.PositiveBigIntegerField(default=0)
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currency = models.CharField(max_length=3, default="RUB")
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# Происхождение для вебхука из бэкенда продукта (идемпотентность).
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source = models.CharField(max_length=64, blank=True)
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external_id = models.CharField(max_length=128, blank=True)
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created_at = models.DateTimeField(auto_now_add=True, db_index=True)
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paid_at = models.DateTimeField(null=True, blank=True)
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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ordering = ["-created_at"]
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indexes = [models.Index(fields=["organization", "payment_status"])]
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constraints = [
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models.UniqueConstraint(
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fields=["organization", "source", "external_id"],
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condition=~models.Q(external_id=""),
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name="uniq_order_org_source_external",
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)
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]
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@property
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def code(self) -> str:
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return f"ORD-{self.id}"
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def __str__(self) -> str:
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return f"{self.code}/{self.payment_status}"
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class OrderItem(TenantRelationModel):
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tenant_relation_fields = ("order", "offer", "price")
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order = models.ForeignKey(Order, on_delete=models.CASCADE, related_name="items")
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offer = models.ForeignKey("products.Offer", on_delete=models.PROTECT, related_name="order_items")
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price = models.ForeignKey("products.Price", on_delete=models.PROTECT, null=True, blank=True, related_name="order_items")
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title = models.CharField(max_length=255)
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quantity = models.PositiveIntegerField(default=1)
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amount_minor = models.PositiveBigIntegerField(default=0)
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currency = models.CharField(max_length=3, default="RUB")
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def __str__(self) -> str:
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return f"{self.title} x{self.quantity}"
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