python - django 发送电子邮件收件人列表

Question

我需要获取在数据库中注册的电子邮件并将其发送到该已注册的电子邮件，但我不能。如果我手动输入电子邮件，它会毫无问题地发送，但我需要它来获取在 Pessoa 中注册的电子邮件，以便在 MovRotativo 中使用，以便在完成后立即发送付款

错误“/sistema/mov-rot-novo/处的类型错误“Pessoa”类型的对象没有 len()"

模型.py

from django.db import models
from django.core.mail import send_mail
import math
PAGO_CHOICES = (
('Não', 'Não Pago'),
('Sim', 'Pago')
)

class Pessoa(models.Model):
    nome = models.CharField(max_length=50, blank=False)
    email = models.EmailField(blank=False)
    cpf = models.CharField(max_length=11, unique=True, blank=False)
    endereco = models.CharField(max_length=50)
    numero = models.CharField(max_length=10)
    bairro = models.CharField(max_length=30)
    telefone = models.CharField(max_length=20, blank=False)
    cidade = models.CharField(max_length=20)
    estado = models.CharField(max_length=2, choices=STATE_CHOICES)

    def __str__(self):
        return str(self.nome) + ' - ' + str(self.email) 

class MovRotativo(models.Model):
    checkin = models.DateTimeField(auto_now=False, blank=False, null=False,)
    checkout = models.DateTimeField(auto_now=False, null=True, blank=True)
    email = models.ForeignKey(Pessoa, on_delete=models.CASCADE, blank=False)
    valor_hora = models.DecimalField(
        max_digits=5, decimal_places=2, null=False, blank=False)
    veiculo = models.ForeignKey(
        Veiculo, on_delete=models.CASCADE, null=False, blank=False)
    pago = models.CharField(max_length=15, choices=PAGO_CHOICES)

    def send_email(self):
        if self.pago == 'Sim':

            send_mail(
                'Comprovante pagamento Estacione Aqui 24 Horas',
                'Here is the message.',
                'estacioneaqui24@gmail.com',
                recipient_list=[self.email],
                fail_silently=False,
            )

Answer 1

在 MovRotativo 中，email 不是 EmailField 而是类 Pessoa 的实例。您需要来自 Pessoa 的电子邮件，即 email.email:

recipient_list=[self.email.email],