url django 中渲染的 slugs 不正确

Question

Why do I always have an extra %2F in my generated slugs urls?

All the slugs are generating correctly below when I print them out in the terminal, but I don't know why the url has the extra %2F

Something is wrong somewhere but I cannot seem to spot it

In my view i am using <a href = "{{ group.get_absolute_url }}">... to get the slug. Now, this works but outputs the above problem. If i do href = "{% url 'group' group.slug %} this throws an error that it can't find a reverse match.

Example: title of group is a group the url will be ../%2Fgroup/a-group/

in urls.py

 (r'^/group/(?P<slug>[-\w\d]+)/$', "group"),

model

class BlogGroup(models.Model):

    title = BleachField()
    image = models.ImageField(upload_to="uploads/group_images", default="uploads/group_images/none/none.jpg")
    created = models.DateTimeField(default = datetime.now)
    slug = models.SlugField(unique = True)

    def __str__(self):

        return self.title 

    def get_absolute_url(self):
        return reverse("blog.views.group", kwargs = {'slug':self.slug})

form

class BlogGroupForm(forms.ModelForm):


    def __init__(self, *args, **kwargs):

        super(BlogGroupForm, self).__init__(*args, **kwargs)
        self.fields["title"].requried = True
        self.fields["image"].required = True
        self.fields["title"].widget = forms.TextInput()

    class Meta:
        model = BlogGroup
        fields = ["title", "image", "slug"]

    def save(self, commit = False):

        instance = super(BlogGroupForm, self).save(commit = False)
        return truncate_slug(instance, BlogGroup)

utils.py

from django.utils.text import slugify
import itertools

def truncate_slug(instance, arg):

    length = arg._meta.get_field('slug').max_length
    instance.slug = original_slug = slugify(instance.title)[:length]

    for x in itertools.count(1):
        if not arg.objects.filter(slug = instance.slug).exists():
            break
        instance.slug = "%s-%d" % (original_slug[:length - len(str(x)) -1], x)
    instance.save()
    return instance

Answer 1

You have a forward slash at the beginning of your regex. If you remove it, it should prevent the %2f (note that %2f is a url encoded forward slash).

url(r'^group/(?P<slug>[-\w]+)/$', "group", name="group"),

Note that I have also

• removed \\d , since \\w already includes digits 0-9
• used url() (best practice for Django 1.8+) and named the url pattern. That should hopefully make reversing the url with the {% url %} tag work. Using group.get_absolute_url in your template is fine though, there's no need to use the url tag if you don't want to.