89 lines
3.7 KiB
Python
89 lines
3.7 KiB
Python
import os
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from datetime import datetime
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from django.db import models
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from django.urls import reverse
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from imagekit.models import ImageSpecField
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from imagekit.processors import ResizeToFit
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from gallery.exif import Exif
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from gallery.models import Album
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def get_upload_path(instance, filename):
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"""Määrittää lopullisen tallennuspolun heti kuvan tallennusvaiheessa."""
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return os.path.join('albums', str(instance.album.slug), filename)
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class Photo(models.Model):
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album = models.ForeignKey(Album, on_delete=models.CASCADE, related_name='photos', verbose_name="Album")
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slug = models.CharField(max_length=15, editable=False, verbose_name="Photo Slug")
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photo = models.ImageField(upload_to=get_upload_path, height_field='height', width_field='width', verbose_name="Photo")
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# Thumbnail-versiot
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photo_sm = ImageSpecField(source='photo', processors=[ResizeToFit(320, 320)], format='JPEG', options={'quality': 70})
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photo_md = ImageSpecField(source='photo', processors=[ResizeToFit(720, 720)], format='JPEG', options={'quality': 80})
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photo_bg = ImageSpecField(source='photo', processors=[ResizeToFit(1920, 1920)], format='JPEG', options={'quality': 90})
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width = models.PositiveIntegerField(default=0, editable=False, verbose_name="Photo Width")
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height = models.PositiveIntegerField(default=0, editable=False, verbose_name="Photo Height")
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taken_at = models.DateTimeField(blank=True, null=True, editable=False, verbose_name="Taken at")
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exif = models.JSONField(blank=True, null=True, editable=False, verbose_name="Exif Metadata")
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is_favorite = models.BooleanField(default=False, verbose_name="Is Favorite")
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views = models.PositiveIntegerField(default=0, verbose_name="Views")
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likes = models.PositiveIntegerField(default=0, verbose_name="Likes")
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@property
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def orientation(self):
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return "Portrait" if self.height > self.width else "Landscape"
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@staticmethod
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def generate_unique_slug(album, datetime_taken):
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"""Luo yksilöllisen slug-arvon tiedostolle albumin sisällä."""
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slug = int(datetime_taken.strftime('%y%m%d%H%M%S'))
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while Photo.objects.filter(album=album, slug=str(slug)).exists():
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slug += 1
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return str(slug)
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def add_like(self):
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self.likes += 1
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self.save()
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def add_view(self):
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self.views += 1
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self.save()
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def get_next(self):
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return self.__class__.objects.filter(taken_at__gt=self.taken_at, album=self.album.id).order_by('taken_at').first()
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def get_prev(self):
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return self.__class__.objects.filter(taken_at__lt=self.taken_at, album=self.album.id).order_by('-taken_at').first()
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def extract_metadata(self):
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"""Lukee Exif-metadatan ja asettaa tiedot ennen kuvan tallennusta."""
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if self.photo:
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try:
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exif_data = Exif(self.photo.file) # Suoraan muistista, ei tiedostosta
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self.taken_at = getattr(exif_data, 'datetimeoriginal', datetime.now)()
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self.exif = getattr(exif_data, 'data', None)
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except Exception as e:
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print(f"Exif-tiedon lukeminen epäonnistui: {e}")
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self.taken_at = datetime.now()
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def save(self, *args, **kwargs):
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"""Ennen tallennusta luetaan Exif ja asetetaan slug."""
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if not self.slug:
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self.extract_metadata()
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self.slug = self.generate_unique_slug(self.album, self.taken_at or datetime.now())
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super().save(*args, **kwargs)
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def get_absolute_url(self):
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return reverse('gallery:photo_url', kwargs={'album_slug': self.album.slug, 'photo_slug': self.slug})
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class Meta:
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verbose_name_plural = "Photos"
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ordering = ('-taken_at',)
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def __str__(self):
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return f'{self.slug} ({self.orientation}) {self.is_favorite}'
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