Ben, Python aşağıdaki hatayı dışarı spews yeni Mesaj nesnesi oluşturmak için çalışıyorum zaman: Burada Django UNIQUE sınırlaması başarısız oldu: webapp_post.slug
UNIQUE constraint failed: webapp_post.slug
benim models.py olduğunu
class Post(models.Model):
title = models.CharField(max_length=200)
slug = models.SlugField(unique=True)
text = models.TextField()
created_on = models.DateTimeField(auto_now_add=True)
up_vote = 0 # num of up votes
down_vote = 0 #num of down votes
vote_total = up_vote - down_vote
author = models.ForeignKey('auth.User', null=True, blank=True)
CHOICES = [
('Hardware and OS', 'Hardware and OS'),
('Desktops', 'Desktops'),
('Tablets', 'Tablets'),
('Phones', 'Phones'),
('Wearables', 'Wearables'),
('Windows', 'Windows'),
('Mac OS X', 'Mac OS X'),
('Linux and Unix', 'Linux and Unix'),
('Programming and Computer Science', 'Programming and Computer Science'),
('Software Development', 'Software Development'),
('Web Development (Front)', 'Web Development (Front)'),
('Web Development (Back)', 'Web Development (Back)'),
('Mobile Development', 'Mobile Development'),
('Game Development', 'Game Development'),
('Algorithms and Data Structures', 'Algorithms and Data Structures'),
('Databases', 'Databases'),
('IDE/Text Editors', 'IDE/Text Editors'),
('Tutorial', 'Tutorial'),
('Opinion', 'Opinion'),
('Miscellaneous', 'Miscellaneous')
]
field = models.CharField(choices=CHOICES, max_length=200)
def __unicode__(self):
return self.title
@models.permalink
def get_absolute_url(self):
return ('blog_post_detail',(),
{
'slug' :self.slug,
})
def save(self, *args, **kwargs):
if not self.slug:
self.slug = slugify(self.title)
super(Post, self).save(*args, **kwargs)
İşte benim views.py olduğunu
@user_passes_test(lambda u: u.is_authenticated)
def add_post(request):
form = PostForm(request.POST or None)
if request.method == "POST":
if form.is_valid() and request.user.is_authenticated():
try:
post = form.save(commit=False)
post.author = request.user
post.save()
Post.objects.create(author=request.user, title=form.cleaned_data.get("title"), text=form.cleaned_data.get("text"))
return redirect(post)
except IntegrityError as e:
print(e)
else:
print("Invalid form")
print(form.errors)
return render_to_response('webapp/startthread.html',
{ 'form': form,
"authenticated": request.user.is_authenticated() },
context_instance=RequestContext(request))