90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
from decimal import Decimal
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from apps.herd.models import Rancher
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from apps.livestock.models import LiveStock
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from apps.warehouse.models import InventoryEntry
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from apps.product.models import Quota, QuotaDistribution
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from django.db.models import Count, Q
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import typing
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def get_rancher_statistics(rancher: Rancher = None) -> typing.Any:
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""" get statistics of a rancher """ # noqa
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livestocks = LiveStock.objects.filter(herd__rancher=rancher) # noqa
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stats = livestocks.aggregate(
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herd_count=Count("herd", distinct=True),
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light_count=Count('id', filter=Q(weight_type='L')),
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heavy_count=Count('id', filter=Q(weight_type='H')),
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sheep=Count('id', filter=Q(type__name='گوسفند')), # noqa
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goat=Count('id', filter=Q(type__name='بز')),
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cow=Count('id', filter=Q(type__name='گاو')),
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camel=Count('id', filter=Q(type__name='شتر')),
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horse=Count('id', filter=Q(type__name='بز')),
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)
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return [{'name': key, 'value': value} for key, value in stats.items()], stats
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def rancher_quota_weight(rancher, inventory_entry: InventoryEntry = None, distribution: QuotaDistribution = None):
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"""
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:param rancher: Rancher instance
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:param inventory_entry: InventoryEntry instance
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:param distribution: QuotaDistribution instance
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:return: dict {total, by_type}
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"""
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live_stock_meta = {
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"گوسفند": "sheep", # noqa
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"بز": "goat",
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"گاو": "cow",
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"شتر": "camel",
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"اسب": "horse"
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}
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if inventory_entry:
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quota: Quota = inventory_entry.distribution.quota
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elif distribution:
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quota: Quota = distribution.quota
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else:
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quota: Quota = Quota()
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# list of quota live stock allocations
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allocations = list(quota.livestock_allocations.all().select_related('livestock_type'))
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# list of quota incentive plans
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incentive_plans = list(quota.incentive_assignments.all().select_related('livestock_type'))
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livestock_counts_list, livestock_counts_dict = get_rancher_statistics(rancher)
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total_weight = 0
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merged = {}
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for item in allocations + incentive_plans: # noqa
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if item.livestock_type:
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animal_type_fa = item.livestock_type.name
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animal_type_en = item.livestock_type.en_name
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per_head = item.quantity_kg
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count = livestock_counts_dict.get(live_stock_meta.get(animal_type_fa), 0)
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weight = per_head * count
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total_weight += weight
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if animal_type_en not in merged:
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merged[animal_type_en] = {
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"name_fa": animal_type_fa,
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"weight": weight,
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"type": item.livestock_type.weight_type
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}
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else:
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merged[animal_type_en]['weight'] += weight
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return {
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"total_weight": total_weight,
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"remaining_weight": 20,
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"by_type": [{
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"name": key,
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"name_fa": value['name_fa'],
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"weight": value['weight'],
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"type": value['type']
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} for key, value in merged.items()]
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}
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