48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
from django.db import models
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class Region(models.Model):
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name = models.CharField(max_length=100, unique=True)
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code = models.CharField(max_length=10, unique=True, blank=True, null=True)
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def __str__(self):
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return self.name
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class Meta:
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ordering = ['name']
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class Constituency(models.Model):
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region = models.ForeignKey(Region, on_delete=models.CASCADE, related_name='constituencies')
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name = models.CharField(max_length=100)
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def __str__(self):
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return f"{self.name} ({self.region.name})"
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class Meta:
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ordering = ['region', 'name']
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verbose_name_plural = "Constituencies"
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class Farmer(models.Model):
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name = models.CharField(max_length=200)
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id_number = models.CharField(max_length=50, unique=True, verbose_name="National ID/Passport")
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phone_number = models.CharField(max_length=20, blank=True)
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constituency = models.ForeignKey(Constituency, on_delete=models.PROTECT)
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created_at = models.DateTimeField(auto_now_add=True)
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def __str__(self):
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return self.name
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class AgriculturalHolding(models.Model):
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HOLDING_TYPES = [
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('CROP', 'Crop Production'),
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('LIVESTOCK', 'Livestock Production'),
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('MIXED', 'Mixed Farming'),
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('FISHERIES', 'Fisheries/Aquaculture'),
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('FORESTRY', 'Forestry'),
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]
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farmer = models.ForeignKey(Farmer, on_delete=models.CASCADE, related_name='holdings')
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size_hectares = models.DecimalField(max_digits=10, decimal_places=2, verbose_name="Size (Hectares)")
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primary_activity = models.CharField(max_length=20, choices=HOLDING_TYPES)
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location_description = models.TextField(blank=True)
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def __str__(self):
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return f"{self.get_primary_activity_display()} - {self.farmer.name}" |