# 给上传的图片重命名
from django.core.files.storage import FileSystemStorage
from django.http import HttpResponse
class ImageStorage(FileSystemStorage):
from django.conf import settings
def __init__(self, location=settings.MEDIA_ROOT, base_url=settings.MEDIA_URL):
# 初始化
super(ImageStorage, self).__init__(location, base_url)
# 重写 _save方法
def _save(self, name, content):
# name为上传文件名称
import os, time, random
# 文件扩展名
ext = os.path.splitext(name)[1]
# 文件目录
d = os.path.dirname(name)
# 定义文件名,年月日时分秒随机数
fn = time.strftime('%Y%m%d%H%M%S')
fn = fn + '_%d' % random.randint(0, 100)
# 重写合成文件名
name = os.path.join(d, fn + ext)
# 调用父类方法
return super(ImageStorage, self)._save(name, content)
import django.utils.timezone as timezone
from django.db import models
from django.contrib import admin
from .storage import ImageStorage
# Create your models here.
class Urls(models.Model):
id = models.AutoField(primary_key=True)
title = models.CharField(verbose_name="标题",max_length=255)
created_at = models.DateTimeField(verbose_name="创建时间",default = timezone.now)
url = models.ImageField(upload_to='images/%Y%m',storage=ImageStorage(),blank=True, verbose_name='图片', null=True)
readonly_fields = ['image_data']
def __str__(self):
return self.title
class Meta:
verbose_name = '图片管理'
verbose_name_plural = '图片管理'