Question

我有这样的模特：

class Obs(models.Model):
    date = models.DateTimeField(auto_now_add=False, verbose_name='Date')
    description = models.TextField(verbose_name='Description')
    content = models.FileField(verbose_name='File', upload_to='%Y/%m/%d')
    category = models.ForeignKey(ObsType, related_name='Type', verbose_name='type')
    user = models.ForeignKey(User, verbose_name='User')

我需要将'upload_to'路径设置为'date'字段，但此日期不是当前日期。我该怎么做？

更新

我用以下函数解决它：

def get_upload_to(instance, filename):
    date = unicode(instance)
    date = date.split()[0]  # to delete Time
    date = date.split('-')
    return '%s/%s/%s/%s' % (date[0], date[1], date[2], filename)

在我的情况下，日期表示为2014-01-04。如果是2014/01/04将会出错。

Answer 1

您应该使用自定义方法指定upload_to路径，如下所示：

def get_obs_upload_path(instance, filename):
    my_custom_date = datetime.now()
    return '%s/%s' % (my_custom_date, filename)

class Obs(models.Model):
    date = models.DateTimeField(auto_now_add=False, verbose_name='Date')
    description = models.TextField(verbose_name='Description')
    content = models.FileField(verbose_name='File', upload_to=get_obs_upload_path)
    category = models.ForeignKey(ObsType, related_name='Type', verbose_name='type')
    user = models.ForeignKey(User, verbose_name='User')

如何使用django上传文件时创建一些年/月/日路径

1 个答案: