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Django遇上的第一个坑——slug

Django遇上的第一个坑——slug

作者: 叶扬风起 | 来源:发表于2019-06-29 09:21 被阅读0次

PS:好吧,我真的不想发表文章,为什么呢?因为我是一个菜鸡,特别菜的那种,笔记,脑图一大堆,但是仍然菜的一匹,唉,不说了......

首先吧,学习Django第一个遇上的坑——slug字段,为啥呢?这货不懂中文.....

一、介绍:

django-uuslug是一个很方便的将中文转化成拼音slug的插件. 通过使用django-uuslug, 可以保确保slug是唯一的, 并且都是unicode编码的。

二、安装:

pip install django-uuslug

三、使用:

重写model.py中的save()方法:

from django.db import models
from uuslug import uuslug

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 = uuslug(self.name, instance=self, separator="_") 
        # optional non-dash separator 
        self.slug = uuslug(self.name, instance=self, start_no=2) 
        super(CoolSlug, self).save(*args, **kwargs)

默认:

  1. 去首尾符号

  2. 多个中划线变成一个

  3. 中文翻译成拼音用"-"隔开

separator 指定隔开字符:

separator="字符"

start_no 指定起始数字:

start_no=数字

max_length 限制slug的长短:

max_length=数字

word_boundary 字边界:配合mex_length在保存单词完整性下,保证slug的限制长短

word_boundary=True

save_order 保存顺序?:配合mex_length和word_boundary来保证字符长短,完整性下的顺序。(我TM在讲什么?)即在前两者满足情况下,如果save_order为false,在长度不够的情况下,可能会选择后面较短的字符。

save_order=True

\color{red}{stopwords}过滤某些字符,接收参数为一个数组。该方法大小写不灵敏。

stopwords=['字符', '字符']

Django外使用

这个我直接copy的geihub

 ####### Unicode Test #######

 from uuslug import slugify

 txt = "This is a test ---"
 r = slugify(txt)
 self.assertEqual(r, "this-is-a-test")

 txt = "___This is a test ---"
 r = slugify(txt)
 self.assertEqual(r, "this-is-a-test")

 txt = "___This is a test___"
 r = slugify(txt)
 self.assertEqual(r, "this-is-a-test")

 txt = "This -- is a ## test ---"
 r = slugify(txt)
 self.assertEqual(r, "this-is-a-test")

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

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

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

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt)
 self.assertEqual(r, "jaja-lol-mememeoo-a")

 txt = 'Компьютер'
 r = slugify(txt)
 self.assertEqual(r, "kompiuter")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=9)
 self.assertEqual(r, "jaja-lol")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=15)
 self.assertEqual(r, "jaja-lol-mememe")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=50)
 self.assertEqual(r, "jaja-lol-mememeoo-a")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=15, word_boundary=True)
 self.assertEqual(r, "jaja-lol-a")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=17, word_boundary=True)
 self.assertEqual(r, "jaja-lol-mememeoo")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=18, word_boundary=True)
 self.assertEqual(r, "jaja-lol-mememeoo")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=19, word_boundary=True)
 self.assertEqual(r, "jaja-lol-mememeoo-a")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=20, word_boundary=True, separator=".")
 self.assertEqual(r, "jaja.lol.mememeoo.a")

 txt = 'jaja---lol-méméméoo--a'
 r = slugify(txt, max_length=20, word_boundary=True, separator="ZZZZZZ")
 self.assertEqual(r, "jajaZZZZZZlolZZZZZZmememeooZZZZZZa")

 txt = 'one two three four five'
 r = slugify(txt, max_length=13, word_boundary=True, save_order=True)
 self.assertEqual(r, "one-two-three")

 txt = 'one two three four five'
 r = slugify(txt, max_length=13, word_boundary=True, save_order=False)
 self.assertEqual(r, "one-two-three")

 txt = 'one two three four five'
 r = slugify(txt, max_length=12, word_boundary=True, save_order=False)
 self.assertEqual(r, "one-two-four")

 txt = 'one two three four five'
 r = slugify(txt, max_length=12, word_boundary=True, save_order=True)
 self.assertEqual(r, "one-two")

 txt = 'this has a stopword'
 r = slugify(txt, stopwords=['stopword'])
 self.assertEqual(r, 'this-has-a')

 txt = 'the quick brown fox jumps over the lazy dog'
 r = slugify(txt, stopwords=['the'])
 self.assertEqual(r, 'quick-brown-fox-jumps-over-lazy-dog')

 txt = 'Foo A FOO B foo C'
 r = slugify(txt, stopwords=['foo'])
 self.assertEqual(r, 'a-b-c')

 txt = 'Foo A FOO B foo C'
 r = slugify(txt, stopwords=['FOO'])
 self.assertEqual(r, 'a-b-c')

 txt = 'the quick brown fox jumps over the lazy dog in a hurry'
 r = slugify(txt, stopwords=['the', 'in', 'a', 'hurry'])
 self.assertEqual(r, 'quick-brown-fox-jumps-over-lazy-dog')


 ####### Uniqueness Test #######

 from django.db import models
 from uuslug import uuslug

 # Override your object's save method with something like this (models.py)
 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 = uuslug(self.name, instance=self)
         super(CoolSlug, self).save(*args, **kwargs)

 # Note: You can also specify the start number.
 # Example:
     self.slug = uuslug(self.name, instance=self, start_no=2)
     # the second slug should start with "-2" instead of "-1"

 name = "john"
 c = CoolSlug.objects.create(name=name)
 c.save()
 print(c.slug) # => "john"

 c1 = CoolSlug.objects.create(name=name)
 c1.save()
 print(c1.slug) # => "john-1"

 c2 = CoolSlug.objects.create(name=name)
 c2.save()
 print(c2.slug) # => "john-2"


 # If you need truncation of your slug to exact length, here is an example
 class SmartTruncatedSlug(models.Model):
     name = models.CharField(max_length=19)
     slug = models.CharField(max_length=10)

     def __unicode__(self):
         return self.name

     def save(self, *args, **kwargs):
         self.slug = uuslug(self.name, instance=self, max_length=10)
         super(SmartTruncatedSlug, self).save(*args, **kwargs)

 # If you need automatic truncation of your slug, here is an example
 class AutoTruncatedSlug(models.Model):
     name = models.CharField(max_length=19)
     slug = models.CharField(max_length=19)

     def __unicode__(self):
         return self.name

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

uuslug官网

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