def clean_title(self):
is_add = self.instance.pk is None
# if a blog already exists with a similar title or
# with a slug similar to one generated from the title,
# raise error to notify the user about the same.
self.slug = generate_slug(self.cleaned_data['title'])
query = BlogPost.objects.filter(
Q(title=self.cleaned_data['title']) | Q(slug=self.slug))
if is_add:
# during add.
if query.count() > 0:
raise forms.ValidationError(
_('Blog with a similar title already exists.'))
else:
# during edit.
if query.exclude(pk=self.instance.pk).count() > 0:
raise forms.ValidationError(
_('Blog with a similar title already exists.'))
# make sure title is alphanumeric.
try:
int(self.cleaned_data['title'])
except ValueError as e:
pass
else:
raise forms.ValidationError(_('Invalid value.'))
return clean_value(self.cleaned_data['title'],
tags=[]) # remove all HTML tags.
def create_post(request, slug):
blog = get_object_or_404(Blog, slug=slug)
if request.method == 'POST':
form = PostForm(request.POST)
if form.is_valid():
post = form.save(commit=False)
slug = generate_slug(post.title)
conflicts = Post.objects.filter(slug__startswith=slug)
if conflicts:
slug = get_unique_slug(slug, conflicts)
post.slug = slug
post.author = request.user
post.blog = blog
post.save()
# We don't want to start sending garbage requests while testing,
# and we only want to do this on the first save of a published post,
# not every update, otherwise we might get IP banned.
if not settings.DEBUG:
post.send_pingbacks()
return redirect('view_post', post.created.year, post.get_formatted_month(), post.slug)
else:
form = PostForm()
context = {
'blog': blog,
'post_form': form,
}
return render_to_response('blog/create_post.html', context, RequestContext(request))
def save(self, **kwargs):
"""
Override django Model save method to
generate a slug from the title during create.
"""
created = self.pk is None
if created and not self.slug:
self.slug = generate_slug(self.title)
super(BlogPost, self).save(**kwargs)
def create_blog(request):
if request.method == 'POST':
form = BlogForm(request.POST)
if form.is_valid():
blog = form.save(commit=False)
slug = generate_slug(blog.title)
conflicts = Blog.objects.filter(slug__startswith=slug)
if conflicts:
slug = get_unique_slug(slug, conflicts)
blog.slug = slug
blog.owner = request.user
blog.save()
return redirect('view_blog', blog.slug)
else:
form = BlogForm()
context = {
'blog_form': form,
}
return render_to_response('blog/create_blog.html', context, RequestContext(request))
