如何为JSONField创建一个django模型，该模型从同一张表中的其他字段获取值？

from django.db import models
from django.contrib.postgres.fields import JSONField

class YourModel(models.Model):
    other_field1 = models.CharField(max_length=100)
    other_field2 = models.IntegerField()
    json_data = JSONField(default=dict)

def save(self, *args, **kwargs):
    self.json_data['other_field1'] = self.other_field1
    self.json_data['other_field2'] = self.other_field2
    super().save(*args, **kwargs)

your_model_instance = YourModel(other_field1='value1', other_field2=123)
your_model_instance.save()