如果要永久执行此操作，则需要创建自己的FileStorage类
import os
from django.conf import settings
from django.core.files.storage import FileSystemStorage
class MyFileStorage(FileSystemStorage):
# This method is actually defined in Storage
def get_available_name(self, name):
if self.exists(name):
os.remove(os.path.join(settings.MEDIA_ROOT, name))
return name # simply returns the name passed
现在在模型中，使用修改后的MyFileStorage
from mystuff.customs import MyFileStorage
mfs = MyFileStorage()
class SomeModel(model.Model):
my_file = model.FileField(storage=mfs)
只需设置instance.field.name为文件的路径
例如
class Document(models.Model):
file = FileField(upload_to=get_document_path)
description = CharField(max_length=100)
doc = Document()
doc.file.name = 'path/to/file' # must be relative to MEDIA_ROOT
doc.file
<FieldFile: path/to/file>
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