问题描述
我有一个引用 ForeignKey（User）字段的模型。
I have a model that references a ForeignKey(User) field.
当用户选择一个项目时在他的表格上，我希望他们能够看到 get_full_name（）而不只是 username 。
When a user selects an item on his form I would like them to be able to see the get_full_name() instead of just the username.
class Books(models.Model):
author = models.ForeignKey(User)
推荐答案
这可以通过几种方法完成。
This can be done several ways.
创建 User 的代理子类，并覆盖其 __ unicode __（）方法以返回用户的全名。
Create a proxy subclass of User and override its __unicode__() method to return user's full name.
class UserFullName(User):
class Meta:
proxy = True
def __unicode__(self):
return self.get_full_name()
现在处于模型形式，请使用 UserFullName 来检索用户。
Now in your model form, use UserFullName to retrieve users.
class BookForm(forms.ModelForm):
author = forms.ModelChoiceField(queryset=UserFullName.objects.all())
class Meta:
model = Book
另一种方法是在表单的构造函数中动态填充选择。
Another way is to dynamically populate choices in form's constructor.
class BookForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(BookForm, self).__init__(*args, **kwargs)
users = User.objects.all()
self.fields['author'].choices = [(user.pk, user.get_full_name()) for user in users]
class Meta:
model = Book
也许lazerscience展示了最 djangonic的方式作为对类似问题的回答 。它是 ModelChoiceField 的子类，并覆盖了旨在提供选择标签的 label_from_instance（）方法。
Perhaps, the most "djangonic" way is demonstrated by lazerscience as an answer to the similar question Django forms: how to dynamically create ModelChoiceField labels. It subclasses ModelChoiceField and overrides its label_from_instance() method that is intended to provide choice labels.
class UserFullnameChoiceField(forms.ModelChoiceField):
def label_from_instance(self, obj):
return smart_unicode(obj.get_full_name())
class BookForm(forms.ModelForm):
author = UserFullnameChoiceField(queryset=User.objects.all())
class Meta:
model = Book
这篇关于如何以Django模型形式显示用户的get_full_name（）而不是用户名？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！