转载django slugfield 中文解决方式

原文http://www.weiguda.com/blog/1/

1. 总体介绍

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.

django中的slug是什么: slug是一个新闻属性, django中的slug是指有效URL的一部分, 能使URL更加清晰易懂. 比如有这样一篇文章, 标题是"那个13岁的孩子", 它的URL地址是"/news/na-ge-13-sui-de-hai-zi", 后面这一部分便是slug.

2. 如何安装

使用VirtualEnv在Bash shell中:

pip install django-uuslug
3. 如何使用

a. 将任意编码转为相应的unicode:

from uuslug import slugify

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

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

txt = 'C\'est déjà l\'été.'
r = slugify(txt)
self.assertEquals(r, "cest-deja-lete")

txt = '你好我是中国人'
r = slugify(txt)
self.assertEquals(r, "nin-hao-wo-shi-zhong-guo-ren")

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

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

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

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

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

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

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

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

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

txt = 'jaja---lol-méméméoo--a'
r = slugify(txt, max_length=20, word_boundary=True, separator="ZZZZZZ")
self.assertEquals(r, "jajaZZZZZZlolZZZZZZmememeooZZZZZZa")
b. 唯一性测试, 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)
        super(CoolSlug, self).save(*args, **kwargs)
c. 指定起始数字:

self.slug = uuslug(self.name, instance=self, start_no=2)

# 第二个slug就会以-2结尾
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"
d. 限制slug的长短:

class SmartTruncatedSlug(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, start_no=9, max_length=19, word_boundary=True)
        super(SmartTruncatedSlug, self).save(*args, **kwargs)

# 测试
name = 'jaja---lol-méméméoo--a'

obj = SmartTruncatedSlug.objects.create(name=name)
print obj.slug # "jaja-lol-mememeoo"  --- where 19 is max_length (first slug, no duplicate yet)

obj = SmartTruncatedSlug.objects.create(name=name)
print obj.slug # "jaja-lol-mememeoo-9" --- where 19 is max_length, start_no = 9

obj = SmartTruncatedSlug.objects.create(name=name)
print obj.slug # "jaja-lol-mememeo-10" -- where 19 is max_length, smart appending "-10"
4. 其他资源

最后给出该项目的Github地址: django-uuslug, 方便各位自己查看.


原文链接: http://www.weiguda.com/blog/1/