151 lines
5.0 KiB
Python
151 lines
5.0 KiB
Python
from django.db import models
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class SoilLocation(models.Model):
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"""
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مرکز زمین برای دادههای خاک و مزرعه.
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هر مختصات سه سطر در SoilDepthData دارد (۰–۵، ۵–۱۵، ۱۵–۳۰ سانتیمتر).
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"""
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latitude = models.DecimalField(
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max_digits=9,
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decimal_places=6,
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db_index=True,
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help_text="عرض جغرافیایی مرکز زمین (lat)",
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)
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longitude = models.DecimalField(
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max_digits=9,
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decimal_places=6,
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db_index=True,
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help_text="طول جغرافیایی مرکز زمین (lon)",
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)
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task_id = models.CharField(
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max_length=255,
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blank=True,
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help_text="شناسه تسک Celery در حال پردازش",
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)
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farm_boundary = models.JSONField(
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default=dict,
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blank=True,
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help_text=(
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"مرز مزرعه برای درخواستهای سنجشازدور. "
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'میتواند GeoJSON polygon یا bbox مثل {"type": "Polygon", "coordinates": [...]} باشد.'
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),
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)
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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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constraints = [
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models.UniqueConstraint(
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fields=["latitude", "longitude"],
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name="soil_location_unique_lat_lon",
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)
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]
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ordering = ["-updated_at"]
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verbose_name = "مرکز زمین"
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verbose_name_plural = "مراکز زمین"
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def __str__(self):
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return f"SoilLocation({self.latitude}, {self.longitude})"
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@property
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def center_latitude(self):
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return self.latitude
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@property
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def center_longitude(self):
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return self.longitude
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@property
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def is_complete(self):
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"""آیا هر سه عمق ذخیره شدهاند؟"""
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return self.depths.count() == 3
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class SoilDepthData(models.Model):
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"""
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دادههای خاک برای یک عمق مشخص، مرتبط با یک SoilLocation.
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مقادیر خام از API SoilGrids (قبل از اعمال d_factor).
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"""
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DEPTH_0_5 = "0-5cm"
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DEPTH_5_15 = "5-15cm"
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DEPTH_15_30 = "15-30cm"
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DEPTH_CHOICES = [
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(DEPTH_0_5, "۰–۵ سانتیمتر"),
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(DEPTH_5_15, "۵–۱۵ سانتیمتر"),
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(DEPTH_15_30, "۱۵–۳۰ سانتیمتر"),
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]
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soil_location = models.ForeignKey(
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SoilLocation,
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on_delete=models.CASCADE,
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related_name="depths",
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)
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depth_label = models.CharField(
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max_length=10,
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choices=DEPTH_CHOICES,
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db_index=True,
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)
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# خواص خاک — مقادیر mean از API (raw)
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bdod = models.FloatField(null=True, blank=True)
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cec = models.FloatField(null=True, blank=True)
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cfvo = models.FloatField(null=True, blank=True)
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clay = models.FloatField(null=True, blank=True)
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nitrogen = models.FloatField(null=True, blank=True)
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ocd = models.FloatField(null=True, blank=True)
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ocs = models.FloatField(null=True, blank=True)
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phh2o = models.FloatField(null=True, blank=True)
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sand = models.FloatField(null=True, blank=True)
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silt = models.FloatField(null=True, blank=True)
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soc = models.FloatField(null=True, blank=True)
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wv0010 = models.FloatField(null=True, blank=True)
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wv0033 = models.FloatField(null=True, blank=True)
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wv1500 = models.FloatField(null=True, blank=True)
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created_at = models.DateTimeField(auto_now_add=True)
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields=["soil_location", "depth_label"],
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name="soil_depth_unique_location_depth",
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)
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]
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ordering = ["soil_location", "depth_label"]
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def __str__(self):
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return f"SoilDepthData({self.soil_location_id}, {self.depth_label})"
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class NdviObservation(models.Model):
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location = models.ForeignKey(
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SoilLocation,
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on_delete=models.CASCADE,
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related_name="ndvi_observations",
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)
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observation_date = models.DateField(db_index=True)
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mean_ndvi = models.FloatField()
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ndvi_map = models.JSONField(default=dict, blank=True)
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vegetation_health_class = models.CharField(max_length=64)
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satellite_source = models.CharField(max_length=64, default="sentinel-2")
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cloud_cover = models.FloatField(null=True, blank=True)
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metadata = models.JSONField(default=dict, blank=True)
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created_at = models.DateTimeField(auto_now_add=True, db_index=True)
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class Meta:
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db_table = "dashboard_data_ndviobservation"
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ordering = ["-observation_date", "-created_at"]
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constraints = [
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models.UniqueConstraint(
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fields=["location", "observation_date", "satellite_source"],
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name="ndvi_unique_location_date_source",
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)
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]
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verbose_name = "NDVI Observation"
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verbose_name_plural = "NDVI Observations"
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def __str__(self):
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return f"NDVI {self.location_id} {self.observation_date} {self.satellite_source}"
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