Django一个形式/两个模型 [英] Django one form / two models

问题描述

我有一个非常简单的跟踪事件模型：

I have a very simple model for tracking events:

class Event(models.Model):

    description = models.TextField()
    location = models.ForeignKey(Location)    
    start = models.TimeField()
    duration = models.IntegerField()
    event_date = models.DateField()
    creator = models.ForeignKey(User)

我选择了在单独的表中提取位置，以便能够执行查询：

and I opted to extract the location in a separate table in order to be able to perform queries:

class Location(models.Model):

    city = models.CharField(max_length=20)
    address = models.CharField(max_length=30).

为了插入/更新事件，创建表单的最佳方式是什么，考虑到位置应该单独完成，而不是通过ID在事件实例中链接？我想为某个位置地址和城市设置一些自动填充字段，但为了简单起见，可以将其保存在同一个表单上。

What would be the best way to create a form for inserting/updating events, taking into account that the location should be done separately and than linked via ID in the event instance? I wanted to da maybe some autocomplete field for the location address and city, but to keep it on the same form for simplicity?

推荐答案

为 ForeignKey生成的 ModelForm 中为 ModelChoiceField 定义自己的小部件， / code>。

Define your own widget for the ModelChoiceField in the ModelForm that is generated for the ForeignKey.

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