96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
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import uuid
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from django.conf import settings
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from django.db import models
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class FarmType(models.Model):
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uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
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name = models.CharField(max_length=255, unique=True, db_index=True)
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description = models.TextField(blank=True, default="")
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metadata = models.JSONField(default=dict, blank=True)
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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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db_table = "farm_types"
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ordering = ["name"]
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def __str__(self):
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return self.name
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class Product(models.Model):
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uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
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farm_type = models.ForeignKey(
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FarmType,
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on_delete=models.CASCADE,
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related_name="products",
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)
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name = models.CharField(max_length=255, db_index=True)
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description = models.TextField(blank=True, default="")
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metadata = models.JSONField(default=dict, blank=True)
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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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db_table = "products"
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ordering = ["name"]
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constraints = [
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models.UniqueConstraint(fields=["farm_type", "name"], name="unique_product_per_farm_type"),
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]
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def __str__(self):
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return self.name
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class FarmHub(models.Model):
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farm_uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
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owner = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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on_delete=models.CASCADE,
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related_name="farm_hubs",
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)
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farm_type = models.ForeignKey(
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FarmType,
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on_delete=models.PROTECT,
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related_name="farms",
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)
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name = models.CharField(max_length=255)
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is_active = models.BooleanField(default=True)
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customization = models.JSONField(default=dict, blank=True)
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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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products = models.ManyToManyField(Product, related_name="farms", blank=True)
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class Meta:
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db_table = "farm_hubs"
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ordering = ["-created_at"]
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def __str__(self):
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return f"{self.name} ({self.farm_uuid})"
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class FarmSensor(models.Model):
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uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, db_index=True)
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farm = models.ForeignKey(
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FarmHub,
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on_delete=models.CASCADE,
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related_name="sensors",
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)
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name = models.CharField(max_length=255)
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sensor_type = models.CharField(max_length=255, blank=True, default="")
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is_active = models.BooleanField(default=True)
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specifications = models.JSONField(default=dict, blank=True)
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power_source = models.JSONField(default=dict, blank=True)
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customization = models.JSONField(default=dict, blank=True)
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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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db_table = "farm_sensors"
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ordering = ["-created_at"]
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def __str__(self):
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return f"{self.name} ({self.uuid})"
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