Question

我的模式如下:

class Manufacturers(models.Model):
    name = models.CharField()

class Phones(models.Model):
    manufacturer = models.ForeignKey(Manufacturers)
    name = models.CharField()

class Prices(models.Model):
    phone = models.ForeignKey(Phones)
    price = models.DecimalFeild()

并且我已在行政部登记。 y

My problem is: In django s admin interface, When I add a price, I can select a phone from the dropdown list, But there are so many phones, So I want to select the manufacturer at first, then select the phone from the manufacturer s phones. How can I make this. Thanks very much.

Answer 1

The term for this is “

http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3A official&q=chained+select+menu+django&aq=f&aqi=&aql=f&oq=&gs_rfai=“rel=”django s。您可能认为有用的是 django-smart-selects。

借助于django-smart-smart-selects,这就是你如何撰写你的模型:

class Manufacturers(models.Model):
    name = models.CharField()

class Phones(models.Model):
    manufacturer = models.ForeignKey(Manufacturers)
    name = models.CharField()

class Prices(models.Model):
    phone = ChainedForeignKey(
        Phone, 
        chained_field="manufacturer",
        chained_model_field="manufacturer", 
        show_all=False, 
        auto_choose=True
    )
    price = models.DecimalField()

尽管如此,我不禁要问,你是否以最好的方式执行。

It might be better to have Prices show up under the admin form for each phone. So instead of creating a price record and choosing the phone from a drop-down, you d go into the record for that phone and add a price record. See django s documentation on InlineModelAdmin.

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