django admin上传图片文件到七牛云

forms定义

#!/usr/bin/env python
# -*- coding: utf-8 -*-

__author__ = "leo"
__time__ = "2023-01-20"

from django.db.models import FileField

from utils.qiniu_utils import upload_img_to_qiniu

"""
在数据库是CharFiled，但是想在页面上渲染成文件上传框
https://blog.csdn.net/qq_52385631/article/details/123308894
"""
from django import forms

from sale.models import PurchaseOrderItem


class PurchaseOrderItemModelForm(forms.ModelForm):
    img = forms.FileField()

    class Meta:
        model = PurchaseOrderItem
        fields = '__all__'
        widgets = {
            'img': forms.FileInput()
        }

    # 自定义上传 return 路径
    def clean_img(self):
        # 上传文件到七牛云
        file = self.cleaned_data['img']
        return upload_img_to_qiniu(file)

写个工具类

import base64
import os

from qiniu import Auth, put_file, etag, put_data
import qiniu.config

from utils.time_utils import get_custom_today
from xl import settings

# 构建鉴权对象
q = Auth(settings.qiniu_access_key, settings.qiniu_secret_key)
# 要上传的空间
bucket_name = settings.qiniu_bucket_name


def upload_img_to_qiniu(file):
    """
    上传图片文件到七牛云
    :param file:
    :return:
    """
    # 上传后保存的文件名 '2023/01/20/logo.png'
    key = get_custom_today() + '/' + file.name
    # 生成上传 Token，可以指定过期时间等
    token = q.upload_token(bucket_name, key, 3600)

    ret, info = put_data(token, key, file)
    return settings.qiniu_url_refix + key


if __name__ == '__main__':
    # 上传后保存的文件名
    key = '2023/20/logo.png'
    # 生成上传 Token，可以指定过期时间等
    token = q.upload_token(bucket_name, key, 3600)

    # 要上传文件的本地路径
    localfile = '/Users/leo/Documents/Workspace/Python/xl/bbb.jpg'
    ret, info = put_file(token, key, localfile, version='v2')
    print(info)

使用forms

class PurchaseOrderItemInline(admin.TabularInline):
    form = PurchaseOrderItemModelForm
    model = PurchaseOrderItem