Question

我遇到了这个问题，我无法以某种方式解决。

所以我在Django 1.7.7上运行两个应用程序，模型如下

order.Order
order.OrderItinerary（m2m through table）
itinerary.Itinerary
itinerary.Photo

这里的问题是，当我在OrderItinerary中使用指向行程模型的外键时，它可以工作。但是当Photo中的外键指向Itinerary模型时，它会引发我的错误

<class 'itinerary.admin.ItineraryPhotoAdmin'>: (admin.E108) The value of 'list_display[1]' refers to 'itinerary', which is not a callable, an attribute of 'ItineraryPhotoAdmin', or an attribute or method on 'itinerary.Photo'.

我只是不知道指向同一模型的两个不同模型如何能给我不同的结果

class Order(GenericModel):
def __str__(self):
    return "%s" %(self.title)

title       = models.CharField(max_length=64)
description = models.TextField(blank=True)
order_number= models.CharField(max_length=64, unique=True, blank=True, default='')
itineraries = models.ManyToManyField('itinerary.Itinerary', through='order.OrderItinerary')

第二种模式

class OrderItinerary(GenericModel):
title       = models.CharField(max_length=64)
description = models.TextField(blank=True)
rating      = models.FloatField(blank=True)
order       = models.ForeignKey('order.Order')
itinerary   = models.ForeignKey('itinerary.Itinerary')

第三种模式

class Itinerary(GenericModel):
uuid        = models.CharField(max_length=128, default=generate_uuid)
title       = models.CharField(max_length=64)
description = models.TextField(blank=True)
price       = models.DecimalField(blank=True, null=True, decimal_places=2, max_digits=5)
total_rating= models.FloatField(default=0)
rating_num  = models.IntegerField(default=0, verbose_name="number of customers rated")

第四种模式

class Photo(GenericModel):
caption     = models.CharField(max_length=254, default='', blank=True)
photo       = models.ImageField(upload_to=generate_photo_name)
itinenary   = models.ForeignKey('itinerary.Itinerary', related_name="itinerary_photo")

Answer 1

您的Photo模型中有拼写错误，正确itinenary至itinerary。

Django限制某些关键字？

1 个答案: