Add Photo model & templates

config/settings.py

@@ -37,6 +37,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'imagekit',
     'gallery'
 ]
 
@@ -121,6 +122,12 @@ STATICFILES_DIRS = [
     BASE_DIR / 'static',
 ]
 
+
+# Media files
+
+MEDIA_URL = 'media/'
+MEDIA_ROOT = BASE_DIR / 'media'
+
 # Default primary key field type
 # https://docs.djangoproject.com/en/5.1/ref/settings/#default-auto-field
 

config/urls.py

@@ -26,3 +26,4 @@ urlpatterns = [
 
 if settings.DEBUG:
     urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

gallery/admin.py

@@ -1,8 +1,7 @@
 from django.contrib import admin
+from imagekit.admin import AdminThumbnail
 
-from gallery.models import Album, City, Location
-
-# Register your models here.
+from gallery.models import Album, City, Location, Photo
 
 
 class CityAdmin(admin.ModelAdmin):
@@ -19,6 +18,7 @@ class LocationAdmin(admin.ModelAdmin):
     search_fields = ('place', 'city__name',)
     list_per_page = 30
 
+
 class AlbumAdmin(admin.ModelAdmin):
     prepopulated_fields = {'slug': ('name',)}
     list_display = ('__str__',)
@@ -27,7 +27,15 @@ class AlbumAdmin(admin.ModelAdmin):
     list_per_page = 30
 
 
+class PhotoAdmin(admin.ModelAdmin):
+    list_display = ('__str__', 'album', 'admin_thumbnail',)
+    list_display_links = ('__str__',)
+    list_editable = ('album',)
+    readonly_fields = ['slug', 'taken_at', 'height', 'width', 'exif', ]
+    admin_thumbnail = AdminThumbnail(image_field='photo_thumbnail',)
+
+
 admin.site.register(City, CityAdmin)
 admin.site.register(Location, LocationAdmin)
 admin.site.register(Album, AlbumAdmin)
-
+admin.site.register(Photo, PhotoAdmin)

gallery/migrations/0001_initial.py

@@ -1,7 +1,8 @@
-# Generated by Django 5.1.4 on 2024-12-29 21:23
+# Generated by Django 5.1.4 on 2025-01-05 15:24
 
 import datetime
 import django.db.models.deletion
+import gallery.models
 from django.db import migrations, models
 
 
@@ -49,4 +50,17 @@ class Migration(migrations.Migration):
                 'verbose_name_plural': 'Albums',
             },
         ),
+        migrations.CreateModel(
+            name='Photo',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.CharField(editable=False, max_length=15, verbose_name='Photo Slug')),
+                ('photo', models.ImageField(height_field='height', upload_to=gallery.models.Photo._get_upload_path, verbose_name='Photo', width_field='width')),
+                ('width', models.PositiveIntegerField(default=0, editable=False, verbose_name='Photo Width')),
+                ('height', models.PositiveIntegerField(default=0, editable=False, verbose_name='Photo Height')),
+                ('taken_at', models.DateTimeField(blank=True, editable=False, null=True, verbose_name='Taken at')),
+                ('exif', models.JSONField(blank=True, editable=False, null=True, verbose_name='Exif Metadata')),
+                ('album', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='photos', to='gallery.album', verbose_name='Album')),
+            ],
+        ),
     ]

gallery/models.py

@@ -1,8 +1,14 @@
-from datetime import datetime
+import os
+from datetime import datetime, timedelta
 
 from django.db import models
 from django.urls import reverse
 from django.utils.text import slugify
+from imagekit.models import ImageSpecField
+from imagekit.processors import ResizeToFill
+from PIL import Image
+
+from gallery.exif import Exif
 
 # Create your models here.
 
@@ -53,3 +59,40 @@ class Album(models.Model):
     def __str__(self):
         return '{}'.format(self.name)
 
+
+class Photo(models.Model):
+
+    def _get_upload_path(instance, filename):
+        return os.path.join('albums', str(instance.album.slug), filename)
+
+    def _generate_unique_slug(self, datetime_taken=None):
+        datetime_taken = datetime_taken or datetime.now()
+        slug = datetime_taken.strftime('%y%m%d%H%M%S')
+        counter = 0
+        while Photo.objects.filter(album=self.album, slug=slug).exists():
+            counter += 1
+            slug = (datetime_taken + timedelta(seconds=counter)).strftime('%y%m%d%H%M%S')
+        return slug
+
+    album = models.ForeignKey(Album, on_delete=models.CASCADE, related_name='photos', verbose_name="Album")
+    slug = models.CharField(max_length=15, editable=False, verbose_name="Photo Slug")
+    photo = models.ImageField(upload_to=_get_upload_path, height_field='height', width_field='width', verbose_name="Photo")
+    photo_thumbnail = ImageSpecField(source='photo', processors=[ResizeToFill(100, 100)], format='JPEG', options={'quality': 70})
+    width = models.PositiveIntegerField(default=0, editable=False, verbose_name="Photo Width")
+    height = models.PositiveIntegerField(default=0, editable=False, verbose_name="Photo Height")
+    taken_at = models.DateTimeField(blank=True, null=True, editable=False, verbose_name="Taken at")
+    exif = models.JSONField(blank=True, null=True, editable=False, verbose_name="Exif Metadata")
+
+    def save(self, *args, **kwargs):
+        self.exif_data = Exif(self.photo.file)
+        datetime_taken = getattr(self.exif_data, 'datetimeoriginal', datetime.now)()
+        self.slug = self.slug or self._generate_unique_slug(datetime_taken)
+        self.taken_at = self.taken_at or datetime_taken
+        self.exif = getattr(self.exif_data, 'data', None)
+        super().save(*args, **kwargs)
+
+    def get_absolute_url(self):
+        return reverse('gallery:photo_url', kwargs={'album_path': self.album.slug, 'photo_slug': self.slug})
+
+    def __str__(self):
+        return f'{self.slug} ({self.album.name})'

gallery/templates/gallery/album_detail.html

@@ -13,5 +13,8 @@
 {% block content %}
 
 <h1>{{ album.name }}</h1>
+{% for photo in photos %}
+    <a href="{{ photo.get_absolute_url }}"> {{ photo.slug }} </a>
+{% endfor %}
 
 {% endblock %}

gallery/templates/gallery/photo_detail.html

@@ -0,0 +1,19 @@
+{% extends "base.html" %}
+
+<!-- Title -->
+{% block title %} Gallery : Photo {% endblock %}
+
+<!-- Breadcrumb -->
+{% block breadcrumb %}
+    <li><a href="{% url 'gallery:albums_url' %}">Albums</a></li>
+    <li><a href="{{ photo.album.get_absolute_url }}">{{ photo.album.name }}</a></li>
+    <li>{{ photo.slug }}</li>
+{% endblock %}
+
+
+<!-- Content -->
+{% block content %}
+
+    <h1>{{ photo.slug }}</h1>
+
+{% endblock %}

gallery/urls.py

@@ -9,6 +9,9 @@ urlpatterns = [
     # Main page
     path('', views.Main.as_view(), name='main_url'),
 
+    # Yksittäinen kuva albumissa:
+    path('albums/<path:album_path>/<int:photo_slug>/', views.PhotoDetail.as_view(), name="photo_url"),
+
     # Albumin yksityiskohdat:
     path('albums/<path:album_slug>/', views.AlbumDetail.as_view(), name="album_url"),
 

gallery/views.py

@@ -1,12 +1,11 @@
 from django.shortcuts import get_object_or_404, redirect, render
 from django.views.generic import DetailView, ListView, TemplateView
 
-from .models import Album
+from .models import Album, Photo
 
 # Create your views here.
 
 
-
 class Main(TemplateView):
     template_name = "gallery/main.html"
 
@@ -24,3 +23,18 @@ class AlbumDetail(DetailView):
 
     def get_object(self, queryset=None):
         return get_object_or_404(Album, slug=self.kwargs.get('album_slug'))
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['photos'] = self.object.photos.all()
+        return context
+
+
+class PhotoDetail(DetailView):
+    model = Photo
+    template_name = 'gallery/photo_detail.html'
+
+    def get_object(self, queryset=None):
+        return get_object_or_404(Photo, slug=self.kwargs.get('photo_slug'))
+    
+