{Modified} project

config/config/settings.py

@@ -37,6 +37,12 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+
+    # 3rd party apps
+    'taggit',
+
+    # Custom apps
+    'photoapp',
 ]
 
 MIDDLEWARE = [
@@ -114,6 +120,14 @@
 USE_TZ = True
 
 
+# Django taggit
+
+TAGGIT_CASE_INSENSITIVE = True
+
+# Django Authentication
+LOGIN_URL = 'users:login'
+LOGIN_REDIRECT_URL = 'photo:list'
+
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/3.2/howto/static-files/
 

config/photoapp/forms.py

@@ -0,0 +1,22 @@
+'''Photo app Forms'''
+
+from django import forms
+from django.forms import fields
+
+from .models import Photo
+
+class CreatePhotoForm(forms.ModelForm):
+
+    class Meta:
+        model = Photo
+
+        fields = ('title', 'description', 'image', 'tags')
+
+
+class UpdatePhotoForm(forms.ModelForm):
+
+    class Meta:
+        model = Photo
+
+        fields = ('title', 'description')
+

config/photoapp/migrations/0001_initial.py

@@ -0,0 +1,31 @@
+# Generated by Django 3.2.3 on 2021-05-16 21:29
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import taggit.managers
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('taggit', '0003_taggeditem_add_unique_index'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Photo',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=45)),
+                ('description', models.CharField(max_length=250)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('image', models.ImageField(upload_to='photos/')),
+                ('submitter', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                ('tags', taggit.managers.TaggableManager(help_text='A comma-separated list of tags.', through='taggit.TaggedItem', to='taggit.Tag', verbose_name='Tags')),
+            ],
+        ),
+    ]

config/photoapp/urls.py

@@ -0,0 +1,28 @@
+'''Photoapp URL patterns'''
+
+from django.urls import path
+
+from .views import (
+    PhotoListView,
+    PhotoTagListView,
+    PhotoDetailView,
+    PhotoCreateView,
+    PhotoUpdateView,
+    PhotoDeleteView
+)
+
+appname = 'photo'
+
+urlpatterns = [
+    path('', PhotoListView.as_view(), name='list'),
+
+    path('tag/<slug:tag>/', PhotoTagListView.as_view(), name='tag'),
+
+    path('photo/<int:pk>/', PhotoDetailView.as_view(), name='detail'),
+
+    path('photo/create/', PhotoCreateView.as_view(), name='create'),
+
+    path('photo/<int:pk>/update/', PhotoUpdateView.as_view(), name='update'),
+
+    path('photo/<int:pk>/delete/', PhotoDeleteView.as_view(), name='delete'),
+]

config/photoapp/views.py

@@ -1,3 +1,100 @@
-from django.shortcuts import render
+'''Photo app generic views'''
 
-# Create your views here.
+from django.shortcuts import get_object_or_404
+
+from django.http import HttpResponseNotAllowed
+
+from django.urls.resolvers import get_resolver
+
+from django.views.generic import ListView, DetailView, CreateView, UpdateView, DeleteView
+
+from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
+
+from django.urls import reverse_lazy
+
+from .models import Photo
+
+from .forms import CreatePhotoForm, UpdatePhotoForm
+
+class PhotoListView(ListView):
+
+    model = Photo     
+
+    template_name = 'photoapp/list.html'
+
+    context_object_name = 'photos'
+
+
+class PhotoTagListView(ListView):
+
+    model = Photo
+
+    template_name = 'photoapp/taglist.html'
+
+    context_object_name = 'photos'
+
+
+    # Custom function
+    def get_tag(self):
+        return self.kwargs.get('tag')
+
+    def get_queryset(self):
+        return Photo.objects.filter(tag__slug_in=[self.get_tag()])
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["tag"] = self.get_tag()
+        return context
+
+
+class PhotoDetailView(DetailView):
+
+    model = Photo
+
+    context_object_name = 'photo'
+
+    template_name = 'photoapp/detail.html'
+
+
+class PhotoCreateView(LoginRequiredMixin, CreateView):
+
+    model = Photo
+
+    form =  CreatePhotoForm
+
+    success_url = reverse_lazy('photo:list')
+
+    def form_valid(self, form):
+
+        form.user = self.request.user
+        form.save()
+        # Without this next line the tags won't be saved.
+        form.save_m2m()
+        return super().form_valid(form)
+
+class UserIsSubmitter(UserPassesTestMixin):
+
+    # Custom method
+    def get_photo(self):
+        return get_object_or_404(Photo, pk=self.kwargs.get('pk'))
+
+    def test_func(self):
+
+        if self.request.user.is_authenticated():
+            return self.request.user is self.get_photo().submitter
+        else:
+            raise HttpResponseNotAllowed('Sorry you are not allowed here')
+
+class PhotoUpdateView(UserIsSubmitter, UpdateView):
+
+    model = Photo
+
+    form = UpdatePhotoForm
+
+    success_url = reverse_lazy('photo:list')
+
+class PhotoDeleteView(UserIsSubmitter, DeleteView):
+
+    model = Photo
+
+    success_url = reverse_lazy('photo:list')