使用Django在预定时间向用户发送电子邮件

from celery import shared_task
from django.core.mail import send_mail
from datetime import datetime

@shared_task
def send_email_task(email, subject, message):
    send_mail(subject, message, 'sender@example.com', [email])

from django.db import models
from django.utils import timezone

class EmailSchedule(models.Model):
    email = models.EmailField()
    subject = models.CharField(max_length=200)
    message = models.TextField()
    scheduled_time = models.DateTimeField()

    def send_email(self):
        current_time = timezone.now()
        if current_time >= self.scheduled_time:
            send_email_task.delay(self.email, self.subject, self.message)

from django.shortcuts import render
from .models import EmailSchedule
from datetime import datetime, timedelta

def schedule_email(request):
    if request.method == 'POST':
        email = request.POST['email']
        subject = request.POST['subject']
        message = request.POST['message']
        scheduled_time = datetime.now() + timedelta(hours=1)  # 预定发送时间为当前时间加1小时
        email_schedule = EmailSchedule(email=email, subject=subject, message=message, scheduled_time=scheduled_time)
        email_schedule.save()
        email_schedule.send_email()
        return render(request, 'success.html')
    return render(request, 'schedule_email.html')