ModelForm:显示外键字段 [英] ModelForm: display foreign key field

问题描述

考虑以下代码:

models.py

models.py

class Manufacturers(models.Model):
    name = models.CharField(max_length=32)

class Cars(models.Model):
    producedby = models.ForeignKey(Manufacturers)

forms.py

class CreateCar(forms.ModelForm): 
    class Meta: 
        model = Cars

...在html页面上，"producedby"字段显示为"Manufacturer object"选项列表，这不是很有用，是否可以改为显示Manufacturer.name字段?我尝试了其他线程中建议的解决方案，但没有一个起作用.

... on the html page the "producedby" field appears like a list of "Manufacturer object" choices, which is not very useful, is it possible to display the Manufacturer.name field instead? I have tried solutions suggested in other threads but none of them worked.

非常感谢您的帮助

推荐答案

我通过重载__str__方法并按如下所示返回名称来修复它:

I fixed it by overloading the __str__ method and returning the name as follows:

class Manufacturers(models.Model):
    name = models.CharField(max_length=32)
    def __str__(self): return self.name

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