從django中的假內聯模型更新父模型admin

Question

數模型是沒有表的假模型，我不應該保存它。我需要的是將所有內聯Number.number保存爲Message.receiver。 但save_model首先調用並保存後消息cals保存剛剛通過的數字。我需要從Number inline模型訪問父消息模型。 我試圖從NumberAdmin重載save_model（），但沒有成功。 我知道什麼樣的設計不好，但它是遺留下來的。

models.py

class Message(models.Model): 
    receiver = models.BigIntegerField() 
    text = models.TextField(blank=True, null=True) 

    class Meta: 
     db_table = 'messages' 

    def __str__(self): 
     return "{}".format(self.text) 


class Number(models.Model): 
    message = models.ForeignKey("Message", related_name='receivers') 
    number = models.BigIntegerField() 

    class Meta: 
     verbose_name = "ReceiverNumber" 
     verbose_name_plural = "ReceiverNumbers" 
     managed = False 

    def __str__(self): 
     return self.number 

admin.py

class NumberInline(admin.TabularInline): 
    model = Number 
    extra = 0 
    fields = ('number',) 


class NumberAdmin(admin.ModelAdmin): 

    class Meta: 
     model = Number 


class MessageAdmin(admin.ModelAdmin): 
    inlines = (ReceiverNumberInline,) 

    class Meta: 
     model = Message 

Answer 1

我不知道，我完全理解的問題，但你嘗試過重寫Number模型save方法？

class Number(models.Model): 
    message = models.ForeignKey("Message", related_name='receivers') 
    number = models.BigIntegerField() 

    class Meta: 
     verbose_name = "ReceiverNumber" 
     verbose_name_plural = "ReceiverNumbers" 
     managed = False 

    def __str__(self): 
     return self.number 

    def save(self, *args, **kwargs): 
     # do whatever you need without invoking super().save()