Files
Backend/device_hub/models.py
T
2026-05-05 01:32:27 +03:30

107 lines
3.8 KiB
Python

import uuid as uuid_lib
from django.db import models
class DeviceCatalog(models.Model):
OUTPUT_ONLY = "output_only"
INPUT_ONLY = "input_only"
DEVICE_COMMUNICATION_TYPES = [
(OUTPUT_ONLY, "Output Only"),
(INPUT_ONLY, "Input Only"),
]
uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, editable=False, db_index=True)
code = models.CharField(max_length=255, unique=True, db_index=True)
name = models.CharField(max_length=255, unique=True, db_index=True)
description = models.TextField(blank=True, default="")
device_communication_type = models.CharField(
max_length=32,
choices=DEVICE_COMMUNICATION_TYPES,
default=OUTPUT_ONLY,
db_index=True,
)
customizable_fields = models.JSONField(default=list, blank=True)
supported_power_sources = models.JSONField(default=list, blank=True)
returned_data_fields = models.JSONField(default=list, blank=True)
payload_mapping = models.JSONField(default=dict, blank=True)
display_schema = models.JSONField(default=dict, blank=True)
supported_widgets = models.JSONField(default=list, blank=True)
commands_schema = models.JSONField(default=list, blank=True)
capabilities = models.JSONField(default=list, blank=True)
sample_payload = models.JSONField(default=dict, blank=True)
is_active = models.BooleanField(default=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
db_table = "sensor_catalogs"
ordering = ["code"]
def __str__(self):
return self.name
class FarmDevice(models.Model):
uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, editable=False, db_index=True)
farm = models.ForeignKey("farm_hub.FarmHub", on_delete=models.CASCADE, related_name="sensors")
sensor_catalog = models.ForeignKey(
DeviceCatalog,
on_delete=models.PROTECT,
related_name="farm_devices",
null=True,
blank=True,
)
device_catalogs = models.ManyToManyField(
DeviceCatalog,
related_name="composite_farm_devices",
blank=True,
)
physical_device_uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, db_index=True)
name = models.CharField(max_length=255)
sensor_type = models.CharField(max_length=255, blank=True, default="")
is_active = models.BooleanField(default=True)
specifications = models.JSONField(default=dict, blank=True)
power_source = models.JSONField(default=dict, blank=True)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
db_table = "farm_sensors"
ordering = ["-created_at"]
def __str__(self):
return f"{self.name} ({self.uuid})"
def get_device_catalogs(self):
catalogs = list(self.device_catalogs.all())
if catalogs:
return catalogs
if self.sensor_catalog_id:
return [self.sensor_catalog]
return []
def get_device_catalog_by_code(self, code):
if not code:
return None
normalized_code = str(code).strip().lower()
for catalog in self.get_device_catalogs():
if catalog.code.lower() == normalized_code:
return catalog
return None
class SensorExternalRequestLog(models.Model):
farm_uuid = models.UUIDField(db_index=True)
sensor_catalog_uuid = models.UUIDField(null=True, blank=True, db_index=True)
physical_device_uuid = models.UUIDField(db_index=True)
payload = models.JSONField(default=dict, blank=True)
created_at = models.DateTimeField(auto_now_add=True)
class Meta:
db_table = "sensor_external_request_logs"
ordering = ["-created_at", "-id"]
def __str__(self):
return f"{self.physical_device_uuid}:{self.created_at.isoformat()}"