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22 lines
730 B
Python
22 lines
730 B
Python
from django.db.models import QuerySet, Count, Q
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from .models import Park
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def get_base_park_queryset() -> QuerySet[Park]:
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"""Get base queryset with all needed annotations and prefetches"""
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from django.contrib.contenttypes.models import ContentType
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park_type = ContentType.objects.get_for_model(Park)
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return (
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Park.objects.select_related('owner')
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.prefetch_related(
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'photos',
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'rides',
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'location',
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'location__content_type'
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)
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.annotate(
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current_ride_count=Count('rides', distinct=True),
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current_coaster_count=Count('rides', filter=Q(rides__category="RC"), distinct=True)
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)
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.order_by('name')
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) |