发送带有附件django的电子邮件 [英] Send email with attachment django

问题描述

我的数据库中有文件url。我想将文件作为附件发送到电子邮件中。我已经尝试了以下代码

I have the file url in my db. I want to send the file as an attachment in email. I have tried the below code

def mail_business_plan(sender, instance, created, **kwargs):
    if created:
        ctx = {"ctx":instance}

        from_email = 'info@some_email.in'

        subject = 'Business Plan by' + instance.company_name
        message = get_template('email/business_team.html').render(ctx)
        to = ['[e-mail]']
        mail = EmailMessage(subject, message, to=to, from_email=from_email)
        mail.attach_file(instance.presentation, instance.presentation.read(), instance.presentation.content_type)
        return mail.send()

我收到错误，因为 AttributeError：'FieldFile'对象没有属性'content_type'

I am getting error as "AttributeError: 'FieldFile' object has no attribute 'content_type'"

如果文件路径存储在数据库中，发送带有附件的邮件的最佳方法是什么。

What's the best way to send mail with attachment, if the file path is stored in the database.

推荐答案

假设您有一个模型，

Assuming you have a model as,

class MyModel(models.Model):
    # other fields
    presentation = models.FileField(upload_to='some/place/')

并在您的信号中，

import mimetypes


def mail_business_plan(sender, instance, created, **kwargs):
    if created:
        ctx = {"ctx": instance}

        from_email = 'info@some_email.in'

        subject = 'Business Plan by' + instance.company_name
        message = get_template('email/business_team.html').render(ctx)
        to = ['[e-mail]']
        mail = EmailMessage(subject, message, to=to, from_email=from_email)

        content_type = mimetypes.guess_type(instance.presentation.name)[0] # change is here <<<
        mail.attach_file(instance.presentation, instance.presentation.read(), content_type) # <<< change is here also

        return mail.send()

参考：

mimetypes.guess_type（）

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