Django模型ForeignKey对象显示字段名称而不是对象值

Question

我在我的Django模型中使用一个名为Memberno的ForeignKey。在成员类中输入数据后，它会在其他类中显示为“memberno”字段中的“成员对象”。对于ForeignKey，我使用'raw_id_fields'作为解决方法，但对于普通字段甚至'filter_horizo​​ntal'，每个memberno值都显示为“成员对象”。我希望值显示为它们在成员类，即1，2，...

from django.db import models 

# Create your models here. 
class Members(models.Model): 
    DESIGNATION_CHOICES=(
    ('ADM', 'Administrator'), 
    ('OFF', 'Club Official'), 
    ('MEM', 'Ordinary Member'), 
    ) 
    memberno = models.AutoField(primary_key=True) 
    fname = models.CharField(max_length=15) 
    sname = models.CharField(max_length=15) 
    onames = models.CharField(max_length=30, blank=True) 
    email = models.EmailField() 
    phoneNumber = models.CharField(max_length=15) 
    regNo = models.CharField(max_length=15) 
    designation = models.CharField(max_length=3,choices=DESIGNATION_CHOICES) 
    image = models.ImageField(max_length=100,upload_to='photos/%Y/%m/%d', blank=True, null=True) 
    course = models.CharField(max_length=30, blank=True, null=True) 


def __unicode__(self): 
    return u'%s %s %s' % (self.fname, self.sname, self.memberno) 


def get_absolute_url(self): 
    return '%s%s/%s' % (settings.MEDIA_URL, settings.ATTACHMENT_FOLDER, self.id) 

def get_download_url(self): 
    return '%s%s/%s' % (settings.MEDIA_URL, settings.ATTACHMENT_FOLDER, self.name) 




class Security(models.Model): 
    memberno = models.ForeignKey(Members, unique=True) 
    username = models.CharField(max_length=30, primary_key=True) 
    password = models.CharField(max_length=70) 

def __unicode__(self): 
    return u'%s %s %s' % (self.username, self.password, self.memberno) 


class Subscriptions(models.Model): 
    memberno = models.ForeignKey(Members) 
    receiptNo = models.CharField(max_length=30, primary_key=True) 
    type = models.CharField(max_length=50) 
    date = models.DateField() 
    amount = models.FloatField(max_length=99) 

def __unicode__(self): 
    return u'%s %s %s' % (self.receiptno, self.type, self.memberno) 




class events(models.Model): 
    eventName = models.CharField(max_length=25) 
    eventID = models.AutoField(primary_key=True) 
    details = models.TextField() 
    attendanceFee = models.FloatField(max_length=99) 
    date = models.DateField() 
    memberno = models.ManyToManyField(Members) 



def __unicode__(self): 
    return u'%s %s %s' % (self.eventName, self.eventID, self.memberno) 

Answer 1

管理界面似乎使用__str__()来确定模型的显示。我创建一个模型时总是定义__unicode__()和__str__()。例如：

class Activity(models.Model): 
    activity_code = models.ForeignKey(ActivityCode) 
    note = models.TextField(blank=True) 
    def __str__(self): 
     return "(%s) %s" % (self.activity_code.short, self.note) 
    def __unicode__(self): 
     return u'(%s) %s' % (self.activity_code.short, self.note) 

更新：
看起来好像你def __unicode__(self)是不是在你的代码的缩进正确。因此它不是你班级的一部分，也没有被使用。缩进在Python中非常重要。

Answer 2

我不知道我完全理解你的问题，但你的模型中定义的方法unicode？