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Django自定义保存和更新(Django custom save and update)

我有一个模型的自定义保存方法。

class Ticket(models.Model):
    show = models.ForeignKey(Show)
    seat = models.ForeignKey(Seat)
    ref = models.CharField(max_length=100)
    paid = models.BooleanField(default=False)

    class Meta:
        unique_together = ('show', 'seat')

    def save(self, *args, **kwargs):
        if self.paid:
            do_something()

在视图中,我想更新多个Ticket对象:

Ticket.objects.filter(ref='ref').update(paid=True)

但是,因为这不会调用自定义保存方法。 方法do_something()将不会被处理。 有什么方法可以解决这个问题吗?


I have a custom save method for a model.

class Ticket(models.Model):
    show = models.ForeignKey(Show)
    seat = models.ForeignKey(Seat)
    ref = models.CharField(max_length=100)
    paid = models.BooleanField(default=False)

    class Meta:
        unique_together = ('show', 'seat')

    def save(self, *args, **kwargs):
        if self.paid:
            do_something()

In the view I would like to update multiple Ticket objects:

Ticket.objects.filter(ref='ref').update(paid=True)

But, since this won't call the custom save method. The method do_something() won't be processed. Is there any way to solve this problem?


原文:https://stackoverflow.com/questions/44946304
更新时间:2023-09-12 20:09

最满意答案

您需要的工具仍处于测试阶段。 您可以从http://www.microsoft.com/downloads/details.aspx?FamilyID=c8496c2a-54d9-4b11-9491-a1bfaf32f2e3&displaylang=en获取它们。 它们可以与您拥有的任何版本的Visual Studio一起使用(Express直到最终版。)我刚刚在博客上写了一些资源链接,以帮助您入门: http//www.gregcons.com/KateBlog/SomeWindowsPhone7Resources.aspx


The tools you need are still in beta. You can get them from http://www.microsoft.com/downloads/details.aspx?FamilyID=c8496c2a-54d9-4b11-9491-a1bfaf32f2e3&displaylang=en . They work with whatever version of Visual Studio you have (Express right up to ultimate.) I just blogged some links to resources to help you get started: http://www.gregcons.com/KateBlog/SomeWindowsPhone7Resources.aspx.

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