199 lines
6.7 KiB
Python
199 lines
6.7 KiB
Python
import uuid
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from django.core.validators import MinValueValidator
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from django.db import models
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class TimeStampedModel(models.Model):
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"""Abstract base with created/updated timestamps."""
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created_at = models.DateTimeField(auto_now_add=True)
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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abstract = True
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class ProductCategory(TimeStampedModel):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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name = models.CharField(max_length=120, unique=True)
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slug = models.SlugField(max_length=140, unique=True)
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description = models.TextField(blank=True)
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display_order = models.PositiveIntegerField(default=0)
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is_active = models.BooleanField(default=True)
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class Meta:
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ordering = ["display_order", "name"]
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verbose_name_plural = "Product categories"
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def __str__(self) -> str:
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return self.name
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class Product(TimeStampedModel):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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category = models.ForeignKey(
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ProductCategory,
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related_name="products",
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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)
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name = models.CharField(max_length=160)
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slug = models.SlugField(max_length=180, unique=True)
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short_description = models.CharField(max_length=280, blank=True)
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description = models.TextField(blank=True)
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ingredients = models.TextField(blank=True)
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allergens = models.CharField(
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max_length=280, blank=True, help_text="Comma-separated allergen labels."
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)
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price = models.DecimalField(max_digits=8, decimal_places=2)
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inventory_quantity = models.PositiveIntegerField(default=0)
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max_per_order = models.PositiveIntegerField(default=6)
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is_active = models.BooleanField(default=True)
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is_featured = models.BooleanField(default=False)
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hero_image = models.ImageField(upload_to="products/hero/", blank=True)
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class Meta:
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ordering = ["name"]
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def __str__(self) -> str:
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return self.name
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@property
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def is_available(self) -> bool:
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return self.is_active and self.inventory_quantity > 0
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class DeliveryZone(TimeStampedModel):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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label = models.CharField(max_length=120)
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postal_code = models.CharField(max_length=10, db_index=True)
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is_active = models.BooleanField(default=True)
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class Meta:
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ordering = ["postal_code"]
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unique_together = ("postal_code", "label")
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def __str__(self) -> str:
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return f"{self.label} ({self.postal_code})"
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class DeliveryOverrideCode(TimeStampedModel):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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code = models.CharField(max_length=32, unique=True)
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label = models.CharField(max_length=120)
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message_to_customer = models.CharField(max_length=240, blank=True)
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max_uses = models.PositiveIntegerField(default=0, help_text="0 = unlimited")
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usage_count = models.PositiveIntegerField(default=0)
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is_active = models.BooleanField(default=True)
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class Meta:
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ordering = ["code"]
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def __str__(self) -> str:
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return self.code
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def can_use(self) -> bool:
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if not self.is_active:
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return False
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if self.max_uses and self.usage_count >= self.max_uses:
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return False
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return True
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class Order(TimeStampedModel):
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class FulfillmentMethod(models.TextChoices):
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PICKUP = "pickup", "Pickup"
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DELIVERY = "delivery", "Delivery"
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class Status(models.TextChoices):
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DRAFT = "draft", "Draft"
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PENDING = "pending", "Pending"
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CONFIRMED = "confirmed", "Confirmed"
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IN_PRODUCTION = "in_production", "In Production"
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READY = "ready", "Ready"
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COMPLETED = "completed", "Completed"
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CANCELLED = "cancelled", "Cancelled"
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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customer_name = models.CharField(max_length=160)
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customer_email = models.EmailField()
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customer_phone = models.CharField(max_length=32, blank=True)
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fulfillment_method = models.CharField(
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max_length=16, choices=FulfillmentMethod.choices, db_index=True
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)
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status = models.CharField(
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max_length=16, choices=Status.choices, default=Status.PENDING, db_index=True
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)
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scheduled_date = models.DateField(null=True, blank=True)
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scheduled_time_slot = models.CharField(max_length=64, blank=True)
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delivery_address_line1 = models.CharField(max_length=160, blank=True)
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delivery_address_line2 = models.CharField(max_length=160, blank=True)
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delivery_city = models.CharField(max_length=80, blank=True)
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delivery_state = models.CharField(max_length=32, blank=True)
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delivery_postal_code = models.CharField(max_length=16, blank=True)
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delivery_override_code = models.ForeignKey(
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DeliveryOverrideCode,
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related_name="orders",
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null=True,
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blank=True,
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on_delete=models.SET_NULL,
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)
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subtotal_amount = models.DecimalField(
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max_digits=8,
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decimal_places=2,
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default=0,
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validators=[MinValueValidator(0)],
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)
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tax_amount = models.DecimalField(
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max_digits=8,
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decimal_places=2,
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default=0,
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validators=[MinValueValidator(0)],
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)
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delivery_fee_amount = models.DecimalField(
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max_digits=8,
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decimal_places=2,
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default=0,
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validators=[MinValueValidator(0)],
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)
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discount_amount = models.DecimalField(
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max_digits=8,
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decimal_places=2,
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default=0,
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validators=[MinValueValidator(0)],
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)
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total_amount = models.DecimalField(
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max_digits=8,
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decimal_places=2,
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default=0,
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validators=[MinValueValidator(0)],
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)
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notes = models.TextField(blank=True)
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class Meta:
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ordering = ["-scheduled_date", "-created_at"]
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def __str__(self) -> str:
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return f"Order {self.id}"
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class OrderItem(TimeStampedModel):
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id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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order = models.ForeignKey(Order, related_name="items", on_delete=models.CASCADE)
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product = models.ForeignKey(
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Product, related_name="order_items", on_delete=models.SET_NULL, null=True
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)
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product_name = models.CharField(max_length=160)
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product_slug = models.SlugField(max_length=180)
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unit_price = models.DecimalField(max_digits=8, decimal_places=2)
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quantity = models.PositiveIntegerField(default=1, validators=[MinValueValidator(1)])
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line_subtotal = models.DecimalField(max_digits=8, decimal_places=2, default=0)
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class Meta:
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ordering = ["product_name"]
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def __str__(self) -> str:
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return f"{self.product_name} x{self.quantity}"
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