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https://github.com/pacnpal/thrillwiki_django_no_react.git
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Add comprehensive tests for Parks API and models
- Implemented extensive test cases for the Parks API, covering endpoints for listing, retrieving, creating, updating, and deleting parks. - Added tests for filtering, searching, and ordering parks in the API. - Created tests for error handling in the API, including malformed JSON and unsupported methods. - Developed model tests for Park, ParkArea, Company, and ParkReview models, ensuring validation and constraints are enforced. - Introduced utility mixins for API and model testing to streamline assertions and enhance test readability. - Included integration tests to validate complete workflows involving park creation, retrieval, updating, and deletion.
This commit is contained in:
pacnpal
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parks/selectors.py
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244
parks/selectors.py
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"""
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Selectors for park-related data retrieval.
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Following Django styleguide pattern for separating data access from business logic.
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"""
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from typing import Optional, Dict, Any, List
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from django.db.models import QuerySet, Q, F, Count, Avg, Prefetch
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from django.contrib.gis.geos import Point
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from django.contrib.gis.measure import Distance
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from .models import Park, ParkArea, ParkReview
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from rides.models import Ride
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def park_list_with_stats(*, filters: Optional[Dict[str, Any]] = None) -> QuerySet[Park]:
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"""
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Get parks optimized for list display with basic stats.
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Args:
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filters: Optional dictionary of filter parameters
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Returns:
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QuerySet of parks with optimized queries
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"""
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queryset = Park.objects.select_related(
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'operator',
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'property_owner'
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).prefetch_related(
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'location'
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).annotate(
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ride_count_calculated=Count('rides', distinct=True),
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coaster_count_calculated=Count(
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'rides',
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filter=Q(rides__category__in=['RC', 'WC']),
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distinct=True
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),
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average_rating_calculated=Avg('reviews__rating')
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)
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if filters:
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if 'status' in filters:
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queryset = queryset.filter(status=filters['status'])
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if 'operator' in filters:
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queryset = queryset.filter(operator=filters['operator'])
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if 'country' in filters:
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queryset = queryset.filter(location__country=filters['country'])
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if 'search' in filters:
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search_term = filters['search']
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queryset = queryset.filter(
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Q(name__icontains=search_term) |
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Q(description__icontains=search_term)
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)
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return queryset.order_by('name')
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def park_detail_optimized(*, slug: str) -> Park:
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"""
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Get a single park with all related data optimized for detail view.
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Args:
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slug: Park slug identifier
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Returns:
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Park instance with optimized prefetches
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Raises:
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Park.DoesNotExist: If park with slug doesn't exist
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"""
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return Park.objects.select_related(
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'operator',
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'property_owner'
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).prefetch_related(
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'location',
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'areas',
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Prefetch(
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'rides',
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queryset=Ride.objects.select_related('manufacturer', 'designer', 'ride_model')
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),
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Prefetch(
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'reviews',
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queryset=ParkReview.objects.select_related('user').filter(is_published=True)
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),
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'photos'
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).get(slug=slug)
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def parks_near_location(
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*,
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point: Point,
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distance_km: float = 50,
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limit: int = 10
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) -> QuerySet[Park]:
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"""
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Get parks near a specific geographic location.
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Args:
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point: Geographic point (longitude, latitude)
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distance_km: Maximum distance in kilometers
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limit: Maximum number of results
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Returns:
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QuerySet of nearby parks ordered by distance
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"""
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return Park.objects.filter(
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location__coordinates__distance_lte=(point, Distance(km=distance_km))
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).select_related(
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'operator'
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).prefetch_related(
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'location'
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).distance(point).order_by('distance')[:limit]
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def park_statistics() -> Dict[str, Any]:
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"""
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Get overall park statistics for dashboard/analytics.
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Returns:
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Dictionary containing park statistics
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"""
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total_parks = Park.objects.count()
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operating_parks = Park.objects.filter(status='OPERATING').count()
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total_rides = Ride.objects.count()
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total_coasters = Ride.objects.filter(category__in=['RC', 'WC']).count()
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return {
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'total_parks': total_parks,
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'operating_parks': operating_parks,
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'closed_parks': total_parks - operating_parks,
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'total_rides': total_rides,
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'total_coasters': total_coasters,
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'average_rides_per_park': total_rides / total_parks if total_parks > 0 else 0
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}
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def parks_by_operator(*, operator_id: int) -> QuerySet[Park]:
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"""
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Get all parks operated by a specific company.
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Args:
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operator_id: Company ID of the operator
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Returns:
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QuerySet of parks operated by the company
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"""
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return Park.objects.filter(
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operator_id=operator_id
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).select_related(
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'operator'
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).prefetch_related(
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'location'
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).annotate(
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ride_count_calculated=Count('rides')
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).order_by('name')
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def parks_with_recent_reviews(*, days: int = 30) -> QuerySet[Park]:
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"""
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Get parks that have received reviews in the last N days.
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Args:
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days: Number of days to look back for reviews
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Returns:
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QuerySet of parks with recent reviews
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"""
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from django.utils import timezone
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from datetime import timedelta
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cutoff_date = timezone.now() - timedelta(days=days)
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return Park.objects.filter(
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reviews__created_at__gte=cutoff_date,
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reviews__is_published=True
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).select_related(
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'operator'
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).prefetch_related(
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'location'
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).annotate(
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recent_review_count=Count('reviews', filter=Q(reviews__created_at__gte=cutoff_date))
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).order_by('-recent_review_count').distinct()
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def park_search_autocomplete(*, query: str, limit: int = 10) -> QuerySet[Park]:
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"""
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Get parks matching a search query for autocomplete functionality.
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Args:
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query: Search string
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limit: Maximum number of results
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Returns:
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QuerySet of matching parks for autocomplete
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"""
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return Park.objects.filter(
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Q(name__icontains=query) |
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Q(location__city__icontains=query) |
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Q(location__region__icontains=query)
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).select_related(
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'operator'
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).prefetch_related(
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'location'
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).order_by('name')[:limit]
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def park_areas_for_park(*, park_slug: str) -> QuerySet[ParkArea]:
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"""
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Get all areas for a specific park.
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Args:
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park_slug: Slug of the park
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Returns:
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QuerySet of park areas with related data
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"""
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return ParkArea.objects.filter(
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park__slug=park_slug
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).select_related(
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'park'
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).prefetch_related(
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'rides'
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).annotate(
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ride_count=Count('rides')
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).order_by('name')
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def park_reviews_for_park(*, park_id: int, limit: int = 20) -> QuerySet[ParkReview]:
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"""
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Get reviews for a specific park.
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Args:
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park_id: Park ID
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limit: Maximum number of reviews to return
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Returns:
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QuerySet of park reviews
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"""
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return ParkReview.objects.filter(
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park_id=park_id,
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is_published=True
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).select_related(
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'user',
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'park'
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).order_by('-created_at')[:limit]
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