访问pre_save信号中的非模型字段

from django.db.models.signals import pre_save
from django.dispatch import receiver

@receiver(pre_save, sender=YourModel)
def your_model_pre_save(sender, instance, **kwargs):
    # 访问非模型字段
    non_model_field_value = instance.non_model_field
    # 执行其他逻辑

from django.db import models
from django.db.models.signals import pre_save
from django.dispatch import receiver

class YourModel(models.Model):
    # 模型字段
    your_field = models.CharField(max_length=100)
    # 非模型字段
    non_model_field = models.CharField(max_length=100, editable=False)

    def your_method(self):
        # 访问非模型字段
        non_model_field_value = self.non_model_field
        # 执行其他逻辑

@receiver(pre_save, sender=YourModel)
def your_model_pre_save(sender, instance, **kwargs):
    # 调用模型方法
    instance.your_method()