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python-blog/articles/views/html.py

99 lines
3.2 KiB
Python

from typing import Union
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.db.models import F
from django.views import generic
from django.views.generic.edit import FormMixin
from articles.forms import CommentForm
from articles.models import Article, Comment, Page
class ArticlesListView(generic.ListView):
model = Article
paginate_by = 15
context_object_name = "articles"
queryset = Article.without_pages.filter(status=Article.PUBLISHED)
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
context["title"] = "Articles"
return context
class DraftsListView(generic.ListView, LoginRequiredMixin):
model = Article
paginate_by = 15
context_object_name = "articles"
queryset = Article.objects.filter(status=Article.DRAFT)
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
context["title"] = "Drafts"
return context
class ArticleDetailView(FormMixin, generic.DetailView):
model = Article
form_class = CommentForm
context_object_name = "article"
template_name = "articles/article_detail.html"
def get_queryset(self):
queryset = super().get_queryset()
if self.request.user.is_authenticated:
return queryset
return queryset.filter(status=Article.PUBLISHED)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
article = self.object
if hasattr(article, "article"):
article = article.article
context["comments"] = article.comments.filter(status=Comment.APPROVED)
return context
def get_object(self, queryset=None) -> Union[Article, Page]:
obj = super().get_object(queryset) # type: Article
if hasattr(obj, "page"):
obj = obj.page # type: Page
if not self.request.user.is_authenticated:
obj.views_count = F("views_count") + 1
obj.save(update_fields=["views_count"])
return obj
def post(self, request, *args, **kwargs):
self.object = self.get_object() # type: Union[Article, Page]
form = self.get_form()
if not self.object.comments_allowed:
messages.error(self.request, "Comments are disabled on this article.")
# Bypassing self.form_invalid because we don't want its error message
return super().form_invalid(form)
if form.is_valid():
return self.form_valid(form)
else:
return self.form_invalid(form)
def form_invalid(self, form):
messages.error(
self.request,
'Your comment couldn\'t be saved, see <a href="#comment-form">the form below</a>.',
)
return super().form_invalid(form)
def form_valid(self, form):
comment = form.save(commit=False)
comment.article = self.object
comment.save()
messages.success(
self.request, "Comment successfully saved, pending review.",
)
return super().form_valid(form)
def get_success_url(self):
return self.object.get_absolute_url()