lesson 55

ap_12/core/urls.py

@@ -25,6 +25,16 @@ urlpatterns = [
     path('articles/add', views.ArticleCreateView.as_view(), name='articles_add'),
     path('articles/<int:id>', views.ArticleDetailView.as_view(), name='articles_detail'),
     path('articles/<int:id>/update', views.ArticleUpdateView.as_view(), name='articles_update'),
-    path('articles/<int:id>/delete', views.article_delete_view, name='articles_delete'),
+    path('articles/<int:id>/delete', views.ArticleDeleteView.as_view(), name='articles_delete'),
     path('articles/<int:article_id>/comments/add', views.CommentCreateView.as_view(), name='comments_add'),
+    path(
+        'articles/<int:article_id>/comments/<int:comment_id>/update',
+        views.CommentUpdateView.as_view(),
+        name='comments_update',
+    ),
+    path(
+        'articles/<int:article_id>/comments/<int:comment_id>/delete',
+        views.CommentDeleteView.as_view(),
+        name='comments_delete',
+    ),
 ]

ap_12/templates/articles/detail.html

@@ -37,8 +37,20 @@
     {% for comment in comments %}
 
         <div class="card my-4">
-            <div class="card-header">
-            {{ comment.author }}
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <div class="">{{ comment.author }}</div>
+                <div class="d-flex">
+                    <a href="{% url 'comments_update' article_id=article.id comment_id=comment.id %}" class="btn btn-warning me-4">
+                        Update
+                    </a>
+                    
+                    <form action="{% url 'comments_delete' article_id=article.id comment_id=comment.id %}" method="post" onsubmit="return confirm('Delete?')">
+                        {% csrf_token %}
+
+                        <button class="btn btn-danger">Delete</button>
+                    </form>
+
+                </div>
             </div>
 
             <div class="card-body">

ap_12/templates/comments/comment.html

+{% extends 'base.html' %}
+
+{% block content %}
+
+{% include 'partial/form.html' with request_method='post' %}
+
+{% endblock %}

ap_12/webapp/views/__init__.py

@@ -9,10 +9,12 @@ from webapp.views.articles import (
     ArticleCreateView, 
     ArticleDetailView, 
     ArticleUpdateView, 
-    article_delete_view,
+    ArticleDeleteView,
 )
 from webapp.views.comments import (
     CommentCreateView,
+    CommentUpdateView,
+    CommentDeleteView,
 )
 
 

ap_12/webapp/views/articles.py

 from typing import Any
+from django.http import HttpRequest
 from django.http.response import HttpResponse as HttpResponse
-from django.shortcuts import get_object_or_404, redirect
-from django.urls import reverse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse, reverse_lazy
 from django.views import generic
 
 from webapp.forms import ArticleForm, CommentForm
@@ -31,38 +32,107 @@ class ArticleCreateView(generic.CreateView):
         return reverse('articles_detail', kwargs={'id': self.object.id})
 
 
-class ArticleUpdateView(generic.FormView):
-    template_name = 'articles/article.html'
-    form_class = ArticleForm
+class UpdateView(generic.View):
+    template_name = None
+    model = None
+    form_class = None
+    context_object_name = None
+    pk_url_kwarg = None
+    success_url = None
     
     def dispatch(self, request, *args, **kwargs):
-        self.article = self.get_object()
+        self.object = self.get_object()
         return super().dispatch(request, *args, **kwargs)
+
+    def get(self, request, *args, **kwargs):
+        form = self.form_class(instance=self.object)
+        return self.render_to_response(form=form)
     
-    def get_object(self):
-        return get_object_or_404(Article, id=self.kwargs.get('id'))
+    def post(self, request, *args, **kwargs):
+        form = self.form_class(instance=self.object, data=request.POST)
+        
+        if form.is_valid():
+            return self.form_valid(form)
 
-    def get_context_data(self, **kwargs):
-        return super().get_context_data(
-            **kwargs, 
-            article=self.article,
-            btn_text='Update',
-        )
+        return self.form_invalid(form)
+
+    def get_object(self):
+        return get_object_or_404(self.model, id=self.kwargs.get(self.pk_url_kwarg))
     
-    def get_form_kwargs(self):
-        kwargs = super().get_form_kwargs()
-        kwargs['instance'] = self.article
+    def get_context_data(self, **kwargs):
+        kwargs[self.context_object_name] = self.object
         return kwargs
 
+    def get_success_url(self):
+        return self.success_url
+
     def form_valid(self, form):
-        self.article = form.save()
-        return super().form_valid(form)
+        self.object = form.save()
+        return redirect(self.get_success_url())
     
+    def form_invalid(self, form):
+        return self.render_to_response(form=form)
+
+    def render_to_response(self, **kwargs):
+        return render(
+            self.request, 
+            self.template_name, 
+            context=self.get_context_data(**kwargs),
+        )
+
+
+class ArticleUpdateView(generic.UpdateView):
+    template_name = 'articles/article.html'
+    model = Article
+    form_class = ArticleForm
+    context_object_name = 'article'
+    pk_url_kwarg = 'id'
+    extra_context = {'btn_text': 'Update'}
+
     def get_success_url(self):
-        return reverse('articles_detail', kwargs={'id': self.article.id})
+        return reverse('articles_detail', kwargs={'id': self.object.id})
+
+
+class DeleteView(generic.View):
+    template_name = None
+    model = None
+    context_object_name = None
+    pk_url_kwarg = None
+    success_url = None
+    
+    def dispatch(self, request: HttpRequest, *args: Any, **kwargs: Any) -> HttpResponse:
+        self.object = self.get_object()
+        return super().dispatch(request, *args, **kwargs)
+
+    def get(self, request, *args, **kwargs):
+        return self.render_to_response()
 
+    def post(self, request, *args, **kwargs):
+        self.perform_delete()
+        return redirect(self.get_success_url())
 
-def article_delete_view(request, id):
-    get_object_or_404(Article, id=id).delete()
+    def perform_delete(self):
+        self.object.delete()
+
+    def get_object(self):
+        return get_object_or_404(self.model, id=self.kwargs.get(self.pk_url_kwarg))
     
-    return redirect('index')
+    def get_context_data(self, **kwargs):
+        kwargs[self.context_object_name] = self.object
+        return kwargs
+
+    def get_success_url(self):
+        return self.success_url
+
+    def render_to_response(self, **kwargs):
+        return render(
+            self.request, 
+            self.template_name, 
+            context=self.get_context_data(**kwargs),
+        )
+
+
+class ArticleDeleteView(generic.DeleteView):
+    model = Article
+    pk_url_kwarg = 'id'
+    success_url = reverse_lazy('index')

ap_12/webapp/views/comments.py

 from django.shortcuts import redirect
-from django.forms.models import BaseModelForm
-from django.http import HttpResponse
 from django.views import generic
+from django.urls import reverse
 
-from webapp.models import Comment, Article
+from webapp.models import Comment
 from webapp.forms import CommentForm
+from webapp.views.articles import UpdateView, DeleteView
 
 
 class CommentCreateView(generic.CreateView):
@@ -21,3 +21,22 @@ class CommentCreateView(generic.CreateView):
         comment.save()
         
         return redirect('articles_detail', id=article_id)
+
+
+class CommentUpdateView(generic.UpdateView):
+    model = Comment
+    template_name = 'comments/comment.html'
+    form_class = CommentForm
+    context_object_name = 'comment'
+    pk_url_kwarg = 'comment_id'
+
+    def get_success_url(self):
+        return reverse('articles_detail', kwargs={'id': self.object.article.id})
+
+
+class CommentDeleteView(generic.DeleteView):
+    model = Comment
+    pk_url_kwarg = 'comment_id'
+    
+    def get_success_url(self):
+        return reverse('articles_detail', kwargs={'id': self.object.article.id})