mirror of
https://github.com/pacnpal/thrillwiki_django_no_react.git
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e4e36c7899
- Created ParkPhoto and ParkPhotoEvent models in the parks app, including fields for image, caption, alt text, and relationships to the Park model. - Implemented triggers for insert and update operations on ParkPhoto to log changes in ParkPhotoEvent. - Created RidePhoto and RidePhotoEvent models in the rides app, with similar structure and functionality as ParkPhoto. - Added fields for photo type in RidePhoto and implemented corresponding triggers for logging changes. - Established necessary indexes and unique constraints for both models to ensure data integrity and optimize queries.
141 lines
4.2 KiB
Python
141 lines
4.2 KiB
Python
"""
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Ride-specific media models for ThrillWiki.
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This module contains media models specific to rides domain.
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"""
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from typing import Any, Optional, cast
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from django.db import models
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from django.conf import settings
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from apps.core.history import TrackedModel
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from apps.core.services.media_service import MediaService
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import pghistory
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def ride_photo_upload_path(instance: models.Model, filename: str) -> str:
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"""Generate upload path for ride photos."""
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photo = cast("RidePhoto", instance)
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ride = photo.ride
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if ride is None:
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raise ValueError("Ride cannot be None")
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return MediaService.generate_upload_path(
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domain="park",
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identifier=ride.slug,
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filename=filename,
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subdirectory=ride.park.slug,
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)
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@pghistory.track()
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class RidePhoto(TrackedModel):
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"""Photo model specific to rides."""
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ride = models.ForeignKey(
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"rides.Ride", on_delete=models.CASCADE, related_name="photos"
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)
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image = models.ImageField(
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upload_to=ride_photo_upload_path,
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max_length=255,
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)
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caption = models.CharField(max_length=255, blank=True)
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alt_text = models.CharField(max_length=255, blank=True)
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is_primary = models.BooleanField(default=False)
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is_approved = models.BooleanField(default=False)
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# Ride-specific metadata
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photo_type = models.CharField(
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max_length=50,
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choices=[
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("exterior", "Exterior View"),
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("queue", "Queue Area"),
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("station", "Station"),
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("onride", "On-Ride"),
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("construction", "Construction"),
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("other", "Other"),
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],
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default="exterior",
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)
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# Metadata
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created_at = models.DateTimeField(auto_now_add=True)
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updated_at = models.DateTimeField(auto_now=True)
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date_taken = models.DateTimeField(null=True, blank=True)
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# User who uploaded the photo
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uploaded_by = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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on_delete=models.SET_NULL,
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null=True,
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related_name="uploaded_ride_photos",
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)
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class Meta:
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app_label = "rides"
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ordering = ["-is_primary", "-created_at"]
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indexes = [
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models.Index(fields=["ride", "is_primary"]),
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models.Index(fields=["ride", "is_approved"]),
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models.Index(fields=["ride", "photo_type"]),
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models.Index(fields=["created_at"]),
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]
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constraints = [
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# Only one primary photo per ride
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models.UniqueConstraint(
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fields=["ride"],
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condition=models.Q(is_primary=True),
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name="unique_primary_ride_photo",
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)
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]
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def __str__(self) -> str:
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return f"Photo of {self.ride.name} - {self.caption or 'No caption'}"
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def save(self, *args: Any, **kwargs: Any) -> None:
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# Extract EXIF date if this is a new photo
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if not self.pk and not self.date_taken and self.image:
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self.date_taken = MediaService.extract_exif_date(self.image)
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# Set default caption if not provided
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if not self.caption and self.uploaded_by:
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self.caption = MediaService.generate_default_caption(
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self.uploaded_by.username
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)
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# If this is marked as primary, unmark other primary photos for this ride
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if self.is_primary:
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RidePhoto.objects.filter(
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ride=self.ride,
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is_primary=True,
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).exclude(pk=self.pk).update(is_primary=False)
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super().save(*args, **kwargs)
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@property
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def file_size(self) -> Optional[int]:
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"""Get file size in bytes."""
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try:
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return self.image.size
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except (ValueError, OSError):
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return None
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@property
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def dimensions(self) -> Optional[tuple]:
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"""Get image dimensions as (width, height)."""
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try:
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return (self.image.width, self.image.height)
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except (ValueError, OSError):
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return None
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def get_absolute_url(self) -> str:
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"""Get absolute URL for this photo."""
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return f"/parks/{self.ride.park.slug}/rides/{self.ride.slug}/photos/{self.pk}/"
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@property
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def park(self):
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"""Get the park this ride belongs to."""
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return self.ride.park
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