mirror of
https://github.com/pacnpal/thrillwiki_django_no_react.git
synced 2025-12-20 06:11:07 -05:00
265 lines
10 KiB
Python
265 lines
10 KiB
Python
from django.db import models
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from django.urls import reverse
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from django.utils.text import slugify
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from django.core.exceptions import ValidationError
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from typing import Tuple, Optional, Any, TYPE_CHECKING
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import pghistory
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from apps.core.history import TrackedModel
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if TYPE_CHECKING:
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from apps.rides.models import Ride
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from . import ParkArea
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@pghistory.track()
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class Park(TrackedModel):
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# Import managers
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from ..managers import ParkManager
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objects = ParkManager()
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id: int # Type hint for Django's automatic id field
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STATUS_CHOICES = [
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("OPERATING", "Operating"),
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("CLOSED_TEMP", "Temporarily Closed"),
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("CLOSED_PERM", "Permanently Closed"),
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("UNDER_CONSTRUCTION", "Under Construction"),
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("DEMOLISHED", "Demolished"),
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("RELOCATED", "Relocated"),
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]
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name = models.CharField(max_length=255)
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slug = models.SlugField(max_length=255, unique=True)
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description = models.TextField(blank=True)
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status = models.CharField(
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max_length=20, choices=STATUS_CHOICES, default="OPERATING"
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)
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# Location relationship - reverse relation from ParkLocation
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# location will be available via the 'location' related_name on
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# ParkLocation
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# Details
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opening_date = models.DateField(null=True, blank=True)
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closing_date = models.DateField(null=True, blank=True)
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operating_season = models.CharField(max_length=255, blank=True)
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size_acres = models.DecimalField(
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max_digits=10, decimal_places=2, null=True, blank=True
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)
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website = models.URLField(blank=True)
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# Statistics
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average_rating = models.DecimalField(
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max_digits=3, decimal_places=2, null=True, blank=True
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)
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ride_count = models.IntegerField(null=True, blank=True)
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coaster_count = models.IntegerField(null=True, blank=True)
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# Relationships
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operator = models.ForeignKey(
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"Company",
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on_delete=models.PROTECT,
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related_name="operated_parks",
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help_text="Company that operates this park",
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limit_choices_to={"roles__contains": ["OPERATOR"]},
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)
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property_owner = models.ForeignKey(
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"Company",
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on_delete=models.PROTECT,
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related_name="owned_parks",
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null=True,
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blank=True,
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help_text="Company that owns the property (if different from operator)",
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limit_choices_to={"roles__contains": ["PROPERTY_OWNER"]},
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)
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areas: models.Manager["ParkArea"] # Type hint for reverse relation
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# Type hint for reverse relation from rides app
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rides: models.Manager["Ride"]
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# Metadata
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created_at = models.DateTimeField(auto_now_add=True, null=True)
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updated_at = models.DateTimeField(auto_now=True)
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class Meta:
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ordering = ["name"]
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constraints = [
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# Business rule: Closing date must be after opening date
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models.CheckConstraint(
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name="park_closing_after_opening",
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check=models.Q(closing_date__isnull=True)
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| models.Q(opening_date__isnull=True)
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| models.Q(closing_date__gte=models.F("opening_date")),
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violation_error_message="Closing date must be after opening date",
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),
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# Business rule: Size must be positive
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models.CheckConstraint(
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name="park_size_positive",
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check=models.Q(size_acres__isnull=True) | models.Q(size_acres__gt=0),
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violation_error_message="Park size must be positive",
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),
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# Business rule: Rating must be between 1 and 10
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models.CheckConstraint(
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name="park_rating_range",
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check=models.Q(average_rating__isnull=True)
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| (models.Q(average_rating__gte=1) & models.Q(average_rating__lte=10)),
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violation_error_message="Average rating must be between 1 and 10",
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),
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# Business rule: Counts must be non-negative
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models.CheckConstraint(
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name="park_ride_count_non_negative",
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check=models.Q(ride_count__isnull=True) | models.Q(ride_count__gte=0),
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violation_error_message="Ride count must be non-negative",
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),
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models.CheckConstraint(
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name="park_coaster_count_non_negative",
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check=models.Q(coaster_count__isnull=True)
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| models.Q(coaster_count__gte=0),
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violation_error_message="Coaster count must be non-negative",
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),
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# Business rule: Coaster count cannot exceed ride count
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models.CheckConstraint(
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name="park_coaster_count_lte_ride_count",
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check=models.Q(coaster_count__isnull=True)
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| models.Q(ride_count__isnull=True)
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| models.Q(coaster_count__lte=models.F("ride_count")),
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violation_error_message="Coaster count cannot exceed total ride count",
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),
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]
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def __str__(self) -> str:
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return self.name
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def save(self, *args: Any, **kwargs: Any) -> None:
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from django.contrib.contenttypes.models import ContentType
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from apps.core.history import HistoricalSlug
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# Get old instance if it exists
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if self.pk:
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try:
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old_instance = type(self).objects.get(pk=self.pk)
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old_name = old_instance.name
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old_slug = old_instance.slug
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except type(self).DoesNotExist:
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old_name = None
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old_slug = None
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else:
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old_name = None
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old_slug = None
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# Generate new slug if name has changed or slug is missing
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if not self.slug or (old_name and old_name != self.name):
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self.slug = slugify(self.name)
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# Save the model
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super().save(*args, **kwargs)
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# If slug has changed, save historical record
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if old_slug and old_slug != self.slug:
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HistoricalSlug.objects.create(
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content_type=ContentType.objects.get_for_model(self),
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object_id=self.pk,
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slug=old_slug,
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)
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def clean(self):
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super().clean()
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if self.operator and "OPERATOR" not in self.operator.roles:
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raise ValidationError({"operator": "Company must have the OPERATOR role."})
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if self.property_owner and "PROPERTY_OWNER" not in self.property_owner.roles:
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raise ValidationError(
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{"property_owner": "Company must have the PROPERTY_OWNER role."}
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)
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def get_absolute_url(self) -> str:
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return reverse("parks:park_detail", kwargs={"slug": self.slug})
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def get_status_color(self) -> str:
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"""Get Tailwind color classes for park status"""
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status_colors = {
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"OPERATING": "bg-green-100 text-green-800",
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"CLOSED_TEMP": "bg-yellow-100 text-yellow-800",
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"CLOSED_PERM": "bg-red-100 text-red-800",
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"UNDER_CONSTRUCTION": "bg-blue-100 text-blue-800",
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"DEMOLISHED": "bg-gray-100 text-gray-800",
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"RELOCATED": "bg-purple-100 text-purple-800",
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}
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return status_colors.get(self.status, "bg-gray-100 text-gray-500")
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@property
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def formatted_location(self) -> str:
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"""Get formatted address from ParkLocation if it exists"""
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if hasattr(self, "location") and self.location:
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return self.location.formatted_address
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return ""
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@property
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def coordinates(self) -> Optional[Tuple[float, float]]:
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"""Returns coordinates as a tuple (latitude, longitude)"""
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if hasattr(self, "location") and self.location:
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return self.location.coordinates
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return None
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@classmethod
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def get_by_slug(cls, slug: str) -> Tuple["Park", bool]:
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"""Get park by current or historical slug"""
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from django.contrib.contenttypes.models import ContentType
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from apps.core.history import HistoricalSlug
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print(f"\nLooking up slug: {slug}")
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try:
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park = cls.objects.get(slug=slug)
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print(f"Found current park with slug: {slug}")
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return park, False
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except cls.DoesNotExist:
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print(f"No current park found with slug: {slug}")
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# Try historical slugs in HistoricalSlug model
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content_type = ContentType.objects.get_for_model(cls)
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print(f"Searching HistoricalSlug with content_type: {content_type}")
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historical = (
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HistoricalSlug.objects.filter(content_type=content_type, slug=slug)
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.order_by("-created_at")
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.first()
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)
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if historical:
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print(
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f"Found historical slug record for object_id: {
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historical.object_id}"
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)
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try:
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park = cls.objects.get(pk=historical.object_id)
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print(f"Found park from historical slug: {park.name}")
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return park, True
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except cls.DoesNotExist:
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print("Park not found for historical slug record")
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else:
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print("No historical slug record found")
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# Try pghistory events
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print("Searching pghistory events")
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event_model = getattr(cls, "event_model", None)
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if event_model:
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historical_event = (
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event_model.objects.filter(slug=slug)
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.order_by("-pgh_created_at")
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.first()
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)
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if historical_event:
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print(
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f"Found pghistory event for pgh_obj_id: {
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historical_event.pgh_obj_id}"
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)
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try:
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park = cls.objects.get(pk=historical_event.pgh_obj_id)
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print(f"Found park from pghistory: {park.name}")
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return park, True
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except cls.DoesNotExist:
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print("Park not found for pghistory event")
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else:
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print("No pghistory event found")
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raise cls.DoesNotExist("No park found with this slug")
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