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模型上的外键没有出现在Django管理站点中。这与ModelAdmin实例（fields =（'title'，'field-that-does-not-show-up'））中是否明确指定该字段无关。ForeignKey字段不会出现在Django管理站点中
我意识到有很多变数可能导致这种行为。
class AdvertiserAdmin(admin.ModelAdmin):
search_fields = ['company_name', 'website']
list_display = ['company_name', 'website', 'user']
class AdBaseAdmin(admin.ModelAdmin):
list_display = ['title', 'url', 'advertiser', 'since', 'updated', 'enabled']
list_filter = ['updated', 'enabled', 'since', 'updated', 'zone']
search_fields = ['title', 'url']
的问题是广告主外键没有显示在管理员的ADBASE
class Advertiser(models.Model):
""" A Model for our Advertiser
"""
company_name = models.CharField(max_length=255)
website = models.URLField(verify_exists=True)
user = models.ForeignKey(User)
def __unicode__(self):
return "%s" % self.company_name
def get_website_url(self):
return "%s" % self.website
class AdBase(models.Model):
"""
This is our base model, from which all ads will inherit.
The manager methods for this model will determine which ads to
display return etc.
"""
title = models.CharField(max_length=255)
url = models.URLField(verify_exists=True)
enabled = models.BooleanField(default=False)
since = models.DateTimeField(default=datetime.now)
expires_on=models.DateTimeField(_('Expires on'), blank=True, null=True)
updated = models.DateTimeField(editable=False)
# Relations
advertiser = models.ForeignKey(Advertiser)
category = models.ForeignKey(AdCategory)
zone = models.ForeignKey(AdZone)
# Our Custom Manager
objects = AdManager()
def __unicode__(self):
return "%s" % self.title
@models.permalink
def get_absolute_url(self):
return ('adzone_ad_view', [self.id])
def save(self, *args, **kwargs):
self.updated = datetime.now()
super(AdBase, self).save(*args, **kwargs)
def impressions(self, start=None, end=None):
if start is not None:
start_q=models.Q(impression_date__gte=start)
else:
start_q=models.Q()
if end is not None:
end_q=models.Q(impression_date__lte=end)
else:
end_q=models.Q()
return self.adimpression_set.filter(start_q & end_q).count()
def clicks(self, start=None, end=None):
if start is not None:
start_q=models.Q(click_date__gte=start)
else:
start_q=models.Q()
if end is not None:
end_q=models.Q(click_date__lte=end)
else:
end_q=models.Q()
return self.adclick_set.filter(start_q & end_q).count()
class BannerAd(AdBase):
""" A standard banner Ad """
content = models.ImageField(upload_to="adzone/bannerads/")
神秘加深。我试图为AdBase和BannerAd创建ModelForm对象，并为广告客户创建两个生成的字段。一些疯狂的管理事情发生在这里...
哈哈，不敢相信这花了我很长时间才能确定这一个。多么愚蠢的错误。多谢你们！ – powellc 2012-11-04 02:24:37
你认为当有人试图为广告创建容器时，Django应该引发异常吗？我喜欢。 – thepeer 2013-02-19 17:05:16