已从数据库中删除的图像也将从存储中删除

I have these models:

我有这些模型:

class Gallery(models.Model):
   HeadImage = models.ImageField(upload_to="gallery")

class Image(models.Model):
   Image = models.ImageField(upload_to="gallery")
   Gallery = models.ForeignKey(Gallery, related_name='images')

class Tour(models.Model):
   Name=models.CharField(max_length=100)
   Count=models.SmallIntegerField() 
   PriceUnit=models.ForeignKey(PriceUnit)
   Price=models.CharField(max_length=12)
   Gallery = models.OneToOneField(Gallery,editable=False)
class Gallery(