87 lines
No EOL
3.3 KiB
Python
87 lines
No EOL
3.3 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.db.models.signals import post_save
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from django.dispatch import receiver
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from django.urls import reverse
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from django.utils.text import slugify
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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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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=50, 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=[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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@property
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def aspect_ratio(self):
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return self.width / self.height
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def save(self, *args, **kwargs):
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if not self.slug:
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self.slug = os.path.basename(self.photo.name)
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super().save(*args, **kwargs)
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def add_like(self):
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self.likes += 1
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self.save(update_fields=['likes'])
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def add_view(self):
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self.views += 1
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self.save(update_fields=['views'])
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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).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).order_by('-taken_at').first()
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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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unique_together = ('album', "slug")
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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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def create_photo(sender, instance, created, **kwargs):
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if created:
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""" Add exif metadata """
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exif = Exif(instance.photo.path)
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instance.exif = exif.data
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""" Update taken datetime """
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instance.taken_at = exif.datetimeoriginal('Europe/Helsinki')
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instance.save()
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post_save.connect(create_photo, sender=Photo) |