48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
from django.db import models
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from django.db.models import Count, Sum
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from apps.herd.models import Rancher, Herd
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from apps.livestock.models import LiveStock
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class FarmerDashboardService:
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""" Dashboard aggregation service for Rancher """
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@staticmethod
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def get_basic_info(rancher: Rancher):
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return {
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"id": rancher.id,
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"name": f"{rancher.first_name} {rancher.last_name}",
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"mobile": rancher.mobile,
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"national_code": rancher.national_code,
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"province": rancher.province.name if rancher.province else None,
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"city": rancher.city.name if rancher.city else None,
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}
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@staticmethod
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def get_herd_counts(rancher_id):
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return Herd.objects.filter(rancher_id=rancher_id).aggregate(
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total_herds=Count('id'),
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total_heavy=Sum('heavy_livestock_number'),
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total_light=Sum('light_livestock_number'),
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)
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@staticmethod
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def get_livestock_counts(rancher_id):
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return LiveStock.objects.filter(herd__rancher_id=rancher_id, archive=False).aggregate(
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total=Count('id'),
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heavy=Count('id', filter=models.Q(weight_type='H')),
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light=Count('id', filter=models.Q(weight_type='L')),
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)
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@staticmethod
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def get_livestock_by_type(rancher_id):
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return (
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LiveStock.objects.filter(herd__rancher_id=rancher_id, archive=False)
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.values("type__name")
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.annotate(count=Count("id"))
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)
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# @staticmethod
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# def get_dashboard(rancher_id):
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