在url django中渲染的s are不正确 [英] rendered slugs are not correct in url django

问题描述

为什么我生成的s s ur do are are are are are are？？？？？？？？？？？？？？？>>>>>>>>> are are are are are are are are are are are are are当我在终端上打印出来时，正确地生成，但是我不知道为什么url有额外的$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ b

某些地方有些错误，但我似乎无法发现

在我看来，我使用< a href ={ group.get_absolute_url}}> ... 得到s子。现在，这个工作，但是输出上述问题。如果我执行 href ={％url'group'group.slug％} ，则会抛出一个无法找到反向匹配的错误。

示例：组的标题是一个组 url将是 ../% 2Fgroup / a-group /

在urls.py

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

  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}）
  

表单

  class BlogGroupFor m（forms.ModelForm）：
 
 
 def __init __（self，* args，** kwargs）：
 
 super（BlogGroupForm，self） 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）
返回truncate_slug（实例，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] 
 
在itertools.count（1）中：
如果不是arg .objects.filter（SLU g = instance.slug）.exists（）：
 break 
 instance.slug =％s-％d％（original_slug [：length  -  len（str（x））-1]，x ）
 instance.save（）
返回实例
  

解决方案

您的正则表达式开头有一个正斜杠。如果你删除它，它应该阻止％2f （注意％2f 是一个url编码的正斜杠）。

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

请注意，我还有

• 已删除 \d ，因为 \w

• 已使用 url（）（Django 1.8+的最佳做法），并命名为url模式。这应该希望使用 {％url％} 标签工作来反转网址。在您的模板中使用 group.get_absolute_url ，但是，如果您不想使用URL标签，则不需要使用。



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

解决方案

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.

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