66 lines
2.9 KiB
Python
66 lines
2.9 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 ResizeToFill
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from gallery.exif import Exif
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from gallery.models import Album
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class Photo(models.Model):
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def _get_upload_path(instance, filename):
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return os.path.join('albums', str(instance.album.slug), filename)
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def _generate_unique_slug(self, datetime_taken=datetime.now()):
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slug = int(datetime_taken.strftime('%y%m%d%H%M%S'))
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while Photo.objects.filter(album=self.album, slug=slug).exists():
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slug += 1
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return str(slug)
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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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photo_sm = ImageSpecField(source='photo', processors=[ResizeToFill(320, 320)], format='JPEG', options={'quality': 70})
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photo_md = ImageSpecField(source='photo', processors=[ResizeToFill(720, 720)], format='JPEG', options={'quality': 80})
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photo_bg = ImageSpecField(source='photo', processors=[ResizeToFill(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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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 save(self, *args, **kwargs):
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self.exif_data = Exif(self.photo.path)
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datetime_taken = getattr(self.exif_data, 'datetimeoriginal', datetime.now)()
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self.slug = self.slug or self._generate_unique_slug(datetime_taken)
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self.taken_at = self.taken_at or datetime_taken
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self.exif = getattr(self.exif_data, 'data', None)
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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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def __str__(self):
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return f'{self.slug} ({self.album.name})'
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