blocks|key|3234236|text|我使用这个snippet生成唯一的插件，典型的保存方法如下所示|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3234237|slug将是带有blank=True的Django+SlugField，但在保存方法中强制使用slug。|3234238|需要模型的典型保存方法可能如下所示|3234239|def+save(self,+**kwargs):
++++slug_str+=+"%25s+%25s"+%25+(self.title,+self.us_zip)+
++++unique_slugify(self,+slug_str)+
++++super(Need,+self).save(**kwargs)|code-block|syntax|javascript|3234240|这将生成诸如buy-a-new-bike_Boston+MA-02111、buy-a-new-bike_MA-02111-1等插件。输出可能略有不同，但您始终可以查看代码片段并根据需要进行定制。|3234241|entityMap|0|LINK|mutability|MUTABLE|url|https://djangosnippets.org/snippets/690/^0|5|7|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|12|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

I use this <a href="https://djangosnippets.org/snippets/690/" rel="noreferrer">snippet</a> for generating unique slug and my typical save method look like below 

slug will be Django SlugField with blank=True but enforce slug in save method.

typical save method for Need model might look below 

<pre><code>def save(self, **kwargs):
 slug_str = "%s %s" % (self.title, self.us_zip) 
 unique_slugify(self, slug_str) 
 super(Need, self).save(**kwargs)
</code></pre>

and this will generate slug like buy-a-new-bike_Boston-MA-02111 , buy-a-new-bike_Boston-MA-02111-1 and so on. Output might be little different but you can always go through snippet and customize to your needs.

blocks|key|3019938|text|class+Need(models.Model):
++++title+=+models.CharField(max_length=50)
++++us_zip+=+models.CharField(max_length=5)
++++slug+=+models.SlugField(unique=True)

++++def+save(self,+**kwargs):
++++++++slug_str+=+"%25s+%25s"+%25+(self.title,+self.us_zip)+
++++++++super(Need,+self).save()|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3019939|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>class Need(models.Model):
 title = models.CharField(max_length=50)
 us_zip = models.CharField(max_length=5)
 slug = models.SlugField(unique=True)

 def save(self, **kwargs):
 slug_str = "%s %s" % (self.title, self.us_zip) 
 super(Need, self).save()
</code></pre>

blocks|key|298448|text|如果你正在考虑使用一个应用程序来为你做这件事，这里就有一个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|298449|https://github.com/un33k/django-uuslug|offset|length|298450|UUSlug+=+(``U``nique+%2B+``U``code+Slug)


Unicode+Test+Example
=====================
from+uuslug+import+uuslug+as+slugify

s+=+"This+is+a+test+---"
r+=+slugify(s)
self.assertEquals(r,+"this-is-a-test")

s+=+'C\'est+déjà+l\'été.'
r+=+slugify(s)
self.assertEquals(r,+"c-est-deja-l-ete")

s+=+'Nín+hǎo.+Wǒ+shì+zhōng+guó+rén'
r+=+slugify(s)
self.assertEquals(r,+"nin-hao-wo-shi-zhong-guo-ren")

s+=+'影師嗎'
r+=+slugify(s)
self.assertEquals(r,+"ying-shi-ma")


Uniqueness+Test+Example
=======================
Override+your+objects+save+method+with+something+like+this+(models.py)

from+django.db+import+models
from+uuslug+import+uuslug+as+slugify

class+CoolSlug(models.Model):
++++name+=+models.CharField(max_length=100)
++++slug+=+models.CharField(max_length=200)

++++def+__unicode__(self):
++++++++return+self.name

++++def+save(self,+*args,+**kwargs):
++++++++self.slug+=+slugify(self.name,+instance=self)
++++++++super(CoolSlug,+self).save(*args,+**kwargs)

Test:
=====

name+=+"john"
c+=+CoolSlug.objects.create(name=name)
c.save()
self.assertEquals(c.slug,+name)+#+slug+=+"john"

c1+=+CoolSlug.objects.create(name=name)
c1.save()
self.assertEquals(c1.slug,+name%2B"-1")+#+slug+=+"john-1"|code-block|syntax|javascript|298451|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|12|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|C]]]]

If you are thinking of using an app to do it for you, here is one.

<a href="https://github.com/un33k/django-uuslug" rel="noreferrer">https://github.com/un33k/django-uuslug</a>

<pre><code>UUSlug = (``U``nique + ``U``code Slug)


Unicode Test Example
=====================
from uuslug import uuslug as slugify

s = "This is a test ---"
r = slugify(s)
self.assertEquals(r, "this-is-a-test")

s = 'C\'est déjà l\'été.'
r = slugify(s)
self.assertEquals(r, "c-est-deja-l-ete")

s = 'Nín hǎo. Wǒ shì zhōng guó rén'
r = slugify(s)
self.assertEquals(r, "nin-hao-wo-shi-zhong-guo-ren")

s = '影師嗎'
r = slugify(s)
self.assertEquals(r, "ying-shi-ma")


Uniqueness Test Example
=======================
Override your objects save method with something like this (models.py)

from django.db import models
from uuslug import uuslug as slugify

class CoolSlug(models.Model):
 name = models.CharField(max_length=100)
 slug = models.CharField(max_length=200)

 def __unicode__(self):
 return self.name

 def save(self, *args, **kwargs):
 self.slug = slugify(self.name, instance=self)
 super(CoolSlug, self).save(*args, **kwargs)

Test:
=====

name = "john"
c = CoolSlug.objects.create(name=name)
c.save()
self.assertEquals(c.slug, name) # slug = "john"

c1 = CoolSlug.objects.create(name=name)
c1.save()
self.assertEquals(c1.slug, name+"-1") # slug = "john-1"
</code></pre>

blocks|key|293355|text|我的小代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|293356|def+save(self,+*args,+**kwargs):
++++strtime+=+"".join(str(time()).split("."))
++++string+=+"%25s-%25s"+%25+(strtime[7:],+self.title)
++++self.slug+=+slugify(string)
++++super(Need,+self).save()|code-block|syntax|javascript|293357|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

My little code:

<pre><code>def save(self, *args, **kwargs):
 strtime = "".join(str(time()).split("."))
 string = "%s-%s" % (strtime[7:], self.title)
 self.slug = slugify(string)
 super(Need, self).save()
</code></pre>

blocks|key|293359|text|这是一个从标题生成slug的简单实现，它不依赖于其他代码片段：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|293360|from+django.template.defaultfilters+import+slugify

class+Article(models.Model):
++++...
++++def+save(self,+**kwargs):
++++++++if+not+self.slug:
++++++++++++slug+=+slugify(self.title)
++++++++++++while+True:
++++++++++++++++try:
++++++++++++++++++++article+=+Article.objects.get(slug=slug)
++++++++++++++++++++if+article+==+self:
++++++++++++++++++++++++self.slug+=+slug
++++++++++++++++++++++++break
++++++++++++++++++++else:
++++++++++++++++++++++++slug+=+slug+%2B+'-'
++++++++++++++++except:
++++++++++++++++++++self.slug+=+slug
++++++++++++++++++++break

++++++++super(Article,+self).save()|code-block|syntax|javascript|293361|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is a simple implementation that generate the slug from the title, it doesn't depend on other snippets:

<pre><code>from django.template.defaultfilters import slugify

class Article(models.Model):
 ...
 def save(self, **kwargs):
 if not self.slug:
 slug = slugify(self.title)
 while True:
 try:
 article = Article.objects.get(slug=slug)
 if article == self:
 self.slug = slug
 break
 else:
 slug = slug + '-'
 except:
 self.slug = slug
 break

 super(Article, self).save()
</code></pre>

blocks|key|3234320|text|Django提供了一个SlugField模型字段来简化这一过程。下面是一个“博客”应用程序中的示例|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3234321|class+Post(models.Model):
++++title+=+models.CharField(max_length=100)
++++content+=+models.TextField(blank=True)

++++slug+=+models.SlugField(unique=True)

++++@models.permalink
++++def+get_absolute_url(self):
++++++++return+'blog:post',+(self.slug,)|code-block|syntax|javascript|3234322|请注意，我们已经为slug字段设置了unique=True+-在这个项目中，我们将通过它们的slug来查找帖子，所以我们需要确保它们是唯一的。下面是我们的应用程序的views.py在执行此操作时的样子：|3234323|from+.models+import+Post

def+post(request,+slug):
++++post+=+get_object_or_404(Post,+slug=slug)

++++return+render(request,+'blog/post.html',+{
++++++++'post':+post,
++++})|3234324|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Django provides a SlugField model field to make this easier for you. Here's an example of it in a "blog" app's 

<pre><code>class Post(models.Model):
 title = models.CharField(max_length=100)
 content = models.TextField(blank=True)

 slug = models.SlugField(unique=True)

 @models.permalink
 def get_absolute_url(self):
 return 'blog:post', (self.slug,)
</code></pre>

Note that we've set unique=True for our slug field — in this project we will be looking up posts by their slug, so we need to ensure they are unique. Here's what our application's views.py might look like to do this:

<pre><code>from .models import Post

def post(request, slug):
 post = get_object_or_404(Post, slug=slug)

 return render(request, 'blog/post.html', {
 'post': post,
 })
</code></pre>

blocks|key|3020001|text|嗨，你能试一下这个功能吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3020002|class+Training(models.Model):
++++title+=+models.CharField(max_length=250)
++++text+=+models.TextField()
++++created_date+=+models.DateTimeField(
++++auto_now_add=True,+editable=False,+)
++++slug+=+models.SlugField(unique=True,+editable=False,+max_length=250)

++++def+__unicode__(self):
+++++++return+self.title

++++def+save(self,+*args,+**kwargs):
+++++++self.slug+=get_unique_slug(self.id,self.title,Training.objects)
+++++++return+super(Training,+self).save(*args,+**kwargs)

def+get_unique_slug(id,title,obj):
++++slug+=+slugify(title.replace('ı',+'i'))
++++unique_slug+=+slug
++++counter+=+1
++++while+obj.filter(slug=unique_slug).exists():
+++++++if(obj.filter(slug=unique_slug).values('id')[0]['id']==id):
+++++++++++break
+++++++unique_slug+=+'{}-{}'.format(slug,+counter)
+++++++counter+%2B=+1
++++return+unique_slug|code-block|syntax|javascript|3020003|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Hi can you tried this function 

<pre><code>class Training(models.Model):
 title = models.CharField(max_length=250)
 text = models.TextField()
 created_date = models.DateTimeField(
 auto_now_add=True, editable=False, )
 slug = models.SlugField(unique=True, editable=False, max_length=250)

 def __unicode__(self):
 return self.title

 def save(self, *args, **kwargs):
 self.slug =get_unique_slug(self.id,self.title,Training.objects)
 return super(Training, self).save(*args, **kwargs)

def get_unique_slug(id,title,obj):
 slug = slugify(title.replace('ı', 'i'))
 unique_slug = slug
 counter = 1
 while obj.filter(slug=unique_slug).exists():
 if(obj.filter(slug=unique_slug).values('id')[0]['id']==id):
 break
 unique_slug = '{}-{}'.format(slug, counter)
 counter += 1
 return unique_slug
</code></pre>

blocks|key|3020017|text|试试这个，为我想出来的，提前欢迎：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3020018|class+Parcel(models.Model):
++++title+=+models.CharField(max_length-255)
++++slug+=+models.SlugField(unique=True,+max_length=255)
++++weight+=+models.IntegerField()
++++description+=+models.CharField(max_length=255)
++++destination+=+models.CharField(max_length=255)
++++origin+=+models.CharField(max_length=255)

++++def+__str__(self):
++++++++return+self.description

++++def+save(self,+*args,+**kwargs):
++++++++if+not+self.slug:
++++++++++++t_slug+=+slugify(self.title)
++++++++++++startpoint+=+1
++++++++++++unique_slug+=+t_slug
++++++++++++while+Parcel.objects.filter(slug=unique_slug).exists():
++++++++++++++++unique_slug+=+'{}+{}'.format(t_slug,+origin)
++++++++++++++++origin+%2B=+1
++++++++++++self.slug+=+unique_slug
++++++++super().save(*args,+**kwargs)|code-block|syntax|javascript|3020019|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this, worked out for me,welcome in advance:

<pre><code>class Parcel(models.Model):
 title = models.CharField(max_length-255)
 slug = models.SlugField(unique=True, max_length=255)
 weight = models.IntegerField()
 description = models.CharField(max_length=255)
 destination = models.CharField(max_length=255)
 origin = models.CharField(max_length=255)

 def __str__(self):
 return self.description

 def save(self, *args, **kwargs):
 if not self.slug:
 t_slug = slugify(self.title)
 startpoint = 1
 unique_slug = t_slug
 while Parcel.objects.filter(slug=unique_slug).exists():
 unique_slug = '{} {}'.format(t_slug, origin)
 origin += 1
 self.slug = unique_slug
 super().save(*args, **kwargs)
</code></pre>

blocks|key|3234399|text|从django.utils.text导入slugify很有帮助，而且概念非常清晰。下面是一个关于如何使用from+django.utils.text+import+slugify自动生成插件的示例|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3234400|utils.py|3234401|from+django.utils.text+import+slugify
import+random
import+string

#+Random+string+generator
def+random_string_generator(size=10,+chars=string.ascii_lowercase+%2B+string.digits):
++++return+''.join(random.choice(chars)+for+_+in+range(size))

#+Unique+Slug+Generator+
def+unique_slug_generator(instance,+new_slug=None):
++++"""
++++It+assumes+your+instance+has+a+model+with+a+slug+field+and+a+title+character+(char)+field.
++++"""
++++if+new_slug+is+not+None:
++++++++slug+=+new_slug++
++++else:
++++++++slug+=+slugify(instance.title)++

++++Klass+=+instance.__class__

++++qs_exists+=+Klass.objects.filter(slug=slug).exists()

++++if+qs_exists:
++++++++new_slug+=+"{slug}-{randstr}".format(slug=slug,+randstr=random_string_generator(size=4))
++++++++return+unique_slug_generator(instance,+new_slug=new_slug)
++++return+slug|code-block|syntax|javascript|3234402|models.py|3234403|from+django.db.models.signals+import+pre_save+#+Signals
#+import+the+unique_slug_generator+from+.utils.py+
from+.utils+import+unique_slug_generator

class+Product(models.Model):
++++title++=+models.CharField(max_length=120)
++++#+set+blank+to+True
++++slug++=+models.SlugField(blank=True,+unique=True)

def+product_pre_save_receiver(sender,+instance,+*args,+**kwargs):
++++if+not+instance.slug:
++++++++instance.slug+=+unique_slug_generator(instance)


pre_save.connect(product_pre_save_receiver,+sender=Product)|3234404|Django文档解释了Django.utils.text导入slugify以自动生成slug。您可以阅读更多详细信息here|offset|length|3234405|实现代码后，在创建产品时，您可以将slug字段留空，这将进一步获得产品的自动生成的slug，在这种情况下，slug将是唯一的。|3234406|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.djangoproject.com/en/2.2/ref/utils/#module-django.utils.text^0|0|0|0|0|0|1M|4|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|15|8|@]|9|@$O|16|P|17|1|18]]|A|$]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

from django.utils.text import slugify Helps a lot and has quite clear Concepts.
Here one example on How to auto-generate slug by using from django.utils.text import slugify

utils.py

<pre><code>from django.utils.text import slugify
import random
import string

# Random string generator
def random_string_generator(size=10, chars=string.ascii_lowercase + string.digits):
 return ''.join(random.choice(chars) for _ in range(size))

# Unique Slug Generator 
def unique_slug_generator(instance, new_slug=None):
 """
 It assumes your instance has a model with a slug field and a title character (char) field.
 """
 if new_slug is not None:
 slug = new_slug 
 else:
 slug = slugify(instance.title) 

 Klass = instance.__class__

 qs_exists = Klass.objects.filter(slug=slug).exists()

 if qs_exists:
 new_slug = "{slug}-{randstr}".format(slug=slug, randstr=random_string_generator(size=4))
 return unique_slug_generator(instance, new_slug=new_slug)
 return slug
</code></pre>

models.py

<pre><code>from django.db.models.signals import pre_save # Signals
# import the unique_slug_generator from .utils.py 
from .utils import unique_slug_generator

class Product(models.Model):
 title = models.CharField(max_length=120)
 # set blank to True
 slug = models.SlugField(blank=True, unique=True)

def product_pre_save_receiver(sender, instance, *args, **kwargs):
 if not instance.slug:
 instance.slug = unique_slug_generator(instance)


pre_save.connect(product_pre_save_receiver, sender=Product)
</code></pre>

Django documentation explains Django.utils.text import slugify to generate slug automatically. You can read more detail <a href="https://docs.djangoproject.com/en/2.2/ref/utils/#module-django.utils.text" rel="nofollow noreferrer">here</a>

After implementing the code, while creating product, you may leave the slug field blank, which will be further aquired with auto generated slug for the product which will be unique in this case.

blocks|key|3020085|text|下面是我使用的几个函数。您将模型实例和所需的标题传递给unique_slugify，如果不存在，它将添加slug，否则它将继续尝试附加一个4位随机字符串，直到找到一个唯一的字符串。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3020086|import+string
from+django.utils.crypto+import+get_random_string

def+unique_slugify(instance,+slug):
++++model+=+instance.__class__
++++unique_slug+=+slug
++++while+model.objects.filter(slug=unique_slug).exists():
++++++++unique_slug+=+slug+%2B+get_random_string(length=4)
++++return+unique_slug|code-block|syntax|javascript|3020087|我通常通过重写模型save方法来使用它。|3020088|class+YourModel(models.Model):
++++slug+=+models.SlugField()
++++title+=+models.CharField()

++++def+save(self,+*args,+**kwargs):
++++++++if+not+self.slug:
++++++++++++self.slug+=+unique_slugify(self,+slugify(self.title))
++++++++super().save(*args,+**kwargs)|3020089|entityMap^0|R|E|0|0|9|4|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

Here are a couple functions that I use. You pass in the model instance and the desired title into <code>unique_slugify</code> which will add the slug if it doesn't exist, otherwise it will continue trying to append a 4 digit random string until it finds a unique one.
<pre><code>import string
from django.utils.crypto import get_random_string

def unique_slugify(instance, slug):
 model = instance.__class__
 unique_slug = slug
 while model.objects.filter(slug=unique_slug).exists():
 unique_slug = slug + get_random_string(length=4)
 return unique_slug
</code></pre>
I usually use it by overriding the model <code>save</code> method.
<pre><code>class YourModel(models.Model):
 slug = models.SlugField()
 title = models.CharField()

 def save(self, *args, **kwargs):
 if not self.slug:
 self.slug = unique_slugify(self, slugify(self.title))
 super().save(*args, **kwargs)
</code></pre>

blocks|key|3020135|text|这是我用来生成独特的slug的简单而简短的代码，你只需要一个字段来创建你的独特的slug字段|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3020136|from+random+import+randint

def+save(self,+*args,+**kwargs):
++++if+Post.objects.filter(title=self.title).exists():
++++++++extra+=+str(randint(1,+10000))
++++++++self.slug+=+slugify(self.title)+%2B+"-"+%2B+extra
++++else:
++++++++self.slug+=+slugify(self.title)
++++super(Post,+self).save(*args,+**kwargs)|code-block|syntax|javascript|3020137|我希望你会喜欢这个。|3020138|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This is the simple and small code i am using for generating unique slug,
you only need one field to create your unique slug field
<pre><code>from random import randint

def save(self, *args, **kwargs):
 if Post.objects.filter(title=self.title).exists():
 extra = str(randint(1, 10000))
 self.slug = slugify(self.title) + &quot;-&quot; + extra
 else:
 self.slug = slugify(self.title)
 super(Post, self).save(*args, **kwargs)
</code></pre>
I hope you like this.

I am trying to create a unique slug in Django so that I can access a post via a url like this:
<a href="http://www.example.com/buy-a-new-bike_Boston-MA-02111_2" rel="noreferrer">http://www.example.com/buy-a-new-bike_Boston-MA-02111_2</a>

The relevant models:

<pre><code>class ZipCode(models.Model):
 zipcode = models.CharField(max_length=5)
 city = models.CharField(max_length=64)
 statecode = models.CharField(max_length=32)

class Need(models.Model):
 title = models.CharField(max_length=50)
 us_zip = models.CharField(max_length=5)
 slug = ?????

 def get_city():
 zip = ZipCode.objects.get(zipcode=self.us_zip)
 city = "%s, %s %s" % (zip.city, zip.statecode, zip.zipcode)
 return city
</code></pre>

A sample ZipCode record:

<ul>
<li>zipcode = "02111"</li>
<li>city = "Boston"</li>
<li>statecode = "MA"</li>
</ul>

A sample Need record:

<ul>
<li>title = "buy a new bike"</li>
<li>us_zip = "02111"</li>
<li>slug = "buy-a-new-bike_Boston-MA-02111_2" (desired)</li>
</ul>

Any tips as to how to create this unique slug? Its composition is:

<ul>
<li>Need.title + "_" + Need.get_city() + "_" + an optional incrementing integer to make it unique. All spaces should be replaced with "-".</li>
</ul>

NOTE: My desired slug above assumes that the slug "buy-a-new-bike_Boston-MA-02111" already exists, which is what it has the "_2" appended to it to make it unique.

I've tried django-extensions, but it seems that it can only take a field or tuple of fields to construct the unique slug. I need to pass in the get_city() function as well as the "_" connector between the title and city. Anyone solved this and willing to share?

Thank you!

UPDATE

I'm already using django-extensions for its UUIDField, so it would be nice if it could also be usable for its AutoSlugField!

How to create a unique slug in Django

Django

我正在尝试在Django中创建一个独特的插件，这样我就可以通过这样的url访问帖子：相关模型：class ZipCode(models.Model):    zipcode = models.CharField(max_length=5)    city = models.CharField(max_length=64...

问如何在Django中创建一个独特的插件
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在Django中创建一个独特的插件EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在Django中创建一个独特的插件
EN