AttributeError:'文件'对象没有属性' model'

时间:2018-04-30 10:23:54

标签: django django-models django-rest-framework django-views

我有以下设置,其中我的模型类看起来像

from django.db import models
from User.models import UserProfile


class Advertisement(models.Model):
    owner = models.ForeignKey(UserProfile, related_name='advertisements', on_delete=models.CASCADE)
    title = models.CharField(max_length=500, blank=False, default='')
    location = models.CharField(max_length=300, blank=False, default='')
    rent = models.IntegerField(blank=False)
    status = models.CharField(max_length=100, blank=False)
    no_of_bedrooms = models.IntegerField(blank=False)
    no_of_bathrooms = models.IntegerField(blank=False)
    posted_by = models.CharField(max_length=100, blank=True)
    date_ad_posted = models.DateTimeField(null=True, blank=True)
    contact = models.CharField(max_length=13, blank=False)
    description = models.CharField(max_length=1000, blank=False)
    security_deposit = models.IntegerField(default=0, blank=False)

    def save(self, *args, **kwargs):
        super(Advertisement, self).save(*args, **kwargs)


class File(models.Model):
    Ad = models.ForeignKey(Advertisement, related_name='ad-photo', on_delete=models.CASCADE)
    file = models.FileField(blank=False, null=False)
    remark = models.CharField(max_length=20)
    timestamp = models.DateTimeField(auto_now_add=True)

我的序列化工具如下所示

class AdvertisementSerializer(serializers.HyperlinkedModelSerializer):
    owner = serializers.ReadOnlyField(source='owner.email')

    class Meta:
        model = Advertisement
        fields = ('id', 'owner', 'title', 'location', 'rent', 'status', 'no_of_bedrooms', 'no_of_bathrooms',
                  'date_ad_posted', 'posted_by', 'contact', 'description')
        kwargs = {
            'url': {'view_name': 'advertisement-detail'}
        }


class FileSerializer(serializers.ModelSerializer):
    class Meta:
        model = File
        fields = ('Ad', 'file', 'remark', 'timestamp')

我正在以下列方式在admin.py中注册我的模型

from django.contrib import admin
from .models import Advertisement, AdContract, File


class FileInline(admin.TabularInline):
    model = File


class PropertyAdmin(admin.ModelAdmin):
    inlines = [FileInline, ]


admin.site.register(Advertisement, File)
admin.site.register(AdContract)

但是在进行迁移时我遇到了以下错误 enter image description here

我尝试了谷歌搜索后得到的一些解决方案,但错误仍然存​​在。任何帮助表示赞赏。

4 个答案:

答案 0 :(得分:2)

要一次注册多个模型,您需要将它们作为可迭代项传递:

admin.site.register([Advertisement, File])

而不是

admin.site.register(Advertisement, File)

答案 1 :(得分:1)

vector (Vector (XY xy1) (XY xy2)) = [xy1, xy2] 用于注册带有管理类的模型类。

这是它的功能签名: admin.site.register

在您AdminSite.register(model_or_iterable, admin_class=None, **options)中,您传递的是文件模型,而不是自定义管理员类:admin.py

试试这个:

admin.site.register(Advertisement, File)

答案 2 :(得分:0)

使用admin.site.register(Advertisement, FileInline)代替admin.site.register(Advertisement, File)

答案 3 :(得分:0)

我遇到了类似的问题。像您一样,我正在注册Model,而不是admin模型。

尝试一下:

 admin.site.register(File, FileInLine)