python – 在django中实现hashid

概述我一直在努力在 django模型中实现 hashids.我想基于模型的id获取hashid,比如当模型的id = 3时,哈希编码应该是这样的：hashid.encode(id).事情是我不能得到id或pk直到我保存它们.我的想法是获取最新的对象id并在其上添加1.但这不是我的解决方案.任何人都可以帮我搞清楚吗??? django模型是： from hashids import Hashidsha 我一直在努力在 django模型中实现 hashids.我想基于模型的ID获取hashID,比如当模型的ID = 3时,哈希编码应该是这样的：hashID.encode(ID).事情是我不能得到ID或pk直到我保存它们.我的想法是获取最新的对象ID并在其上添加1.但这不是我的解决方案.任何人都可以帮我搞清楚吗???

django模型是：

from hashids import hashidshashids = hashids(salt='thismysalt',min_length=4)class Article(models.Model):    Title = models.CharFIEld(...)    text = models.TextFIEld(...)    hashID = models.CharFIEld(...)    # i kNow that this is not a good solution. This is meant to be more clear understanding.    def save(self,*args,**kwargs):        super(Article,self).save(*args,**kwargs)        self.hashID = hashids.encode(self.ID)        super(Article,**kwargs)

解决方法 如果还没有ID,我只会告诉它保存,所以它不会每次运行代码.您可以使用TimeStampedModel继承来执行此 *** 作,这实际上非常适合在任何项目中使用.

from hashids import hashidshashids = hashids(salt='thismysalt',min_length=4)class TimeStampedModel(models.Model):    """ ProvIDes timestamps wherever it is subclassed """    created = models.DateTimeFIEld(editable=False)    modifIEd = models.DateTimeFIEld()    def save(self,**kwargs):  # On `save()`,update timestamps        if not self.created:            self.created = timezone.Now()        self.modifIEd = timezone.Now()        return super().save(*args,**kwargs)    class Meta:        abstract = True  class Article(TimeStampedModel):    Title = models.CharFIEld(...)    text = models.TextFIEld(...)    hashID = models.CharFIEld(...)    # i kNow that this is not a good solution. This is meant to be more clear understanding.    def save(self,**kwargs)        if self.created == self.modifIEd:  # Only run the first time instance is created (where created & modifIEd will be the same)            self.hashID = hashids.encode(self.ID)            self.save(update_fIElds=['hashID'])

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