[英]How to save an image to a customized filepath in django admin?
我正在尝试将图像上传到我选择的特定文件夹。 型号代码如下:
class PhotosTags(models.Model):
Tag_name = models.CharField('Tag Name', max_length=100, default='NA', unique=True)
Description = models.TextField('Tag Description', max_length=200, blank=True)
class Meta:
verbose_name = 'Tags'
verbose_name_plural = verbose_name
ordering = ['Date_created']
def __str__(self):
return str(self.Tag_name)
class Photos(models.Model):
Name = models.TextField('Photo Name', max_length=200, blank=True)
Tag = models.ForeignKey(PhotosTags, on_delete=models.CASCADE, default=None)
filepath = 'Gallery'
Photo = models.ImageField(upload_to=filepath, blank=False)
class Meta:
verbose_name = 'Photos'
verbose_name_plural = verbose_name
ordering = ['Date_uploaded']
pre_save.connect(upload_photo, sender=Photos)
这里每个标签都有自己的文件夹。 我想实现的功能是,当我上传图片时,我可以选择一个特定的标签(通过选择“标签”),然后可以将这张图片上传到该文件夹中。 我尝试使用: signals
来更改文件filepath
但失败了。 我写的代码是:
def upload_photo(sender, instance, **kwargs):
tardir = instance.Tag.Tag_name
instance.filepath = 'Gallery'+'/'+tardir
您可以通过使用函数发送 upload_to 路径来实现它。
import os
def path_generator(instance, filename):
base, extension = os.path.splitext(os.path.basename(filename))
file_dir = f"your_desired_path.{extension}"
return file_dir
class Photos(models.Model):
Name = models.TextField('Photo Name', max_length=200, blank=True)
Tag = models.ForeignKey(PhotosTags, on_delete=models.CASCADE, default=None)
Photo = models.ImageField(upload_to=path_generator, blank=False)
class Meta:
verbose_name = 'Photos'
verbose_name_plural = verbose_name
ordering = ['Date_uploaded']
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