Question

我有两张桌子

表1

CREATE TABLE `profiles` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
    `first_name` varchar(45) DEFAULT NULL,
    `surname` varchar(45) DEFAULT NULL,
    `email` varchar(45) DEFAULT NULL,
    `unique_id` varchar(100) DEFAULT NULL,
    PRIMARY KEY (`id`),
    UNIQUE KEY `id_UNIQUE` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;

表2

CREATE TABLE `bible_photo` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `file` varchar(100) NOT NULL,
    `file_name` varchar(45) DEFAULT NULL,
    `unique_id` varchar(100) DEFAULT NULL,
    PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;

两个相应的模型

模型

class TProfiles(models.Model):
    id = models.IntegerField(primary_key=True)  # AutoField?
    first_name = models.CharField(max_length=45, blank=True)
    surname = models.CharField(max_length=45, blank=True)
    email = models.CharField(max_length=45, blank=True)
    unique_id = models.CharField(max_length=100, blank=True)

    class Meta:
        managed = False
        db_table = 'profiles'

class Photo( models.Model ):
    file = models.FileField( upload_to = settings.MEDIA_ROOT )
    file_name = models.CharField(max_length=45, blank=True)
    unique_id = models.CharField(max_length=100, blank=True)

    def extension(self):
        name, extension = os.path.splitext(self.file.name)
        return extension

我想根据他们共享的唯一ID访问所有配置文件及其相应的个人资料图片。我在views.py文件中有以下内容。但是，虽然我可以单独访问它们，但我无法将它们组合起来传递给模板。

views.py

def register(request):
    photos = Photo.objects.all
    profiles = TProfiles.objects.all

    return render_to_response("register.html", {
        "form": form, "photos": photos,
    }, RequestContext(request))

更新

我尝试将profile = models.ForeignKey(TProfiles)添加到我的Photo模型中，但我一直抱怨缺少与“个人档案”表相关的列。当然，我不必将它们复制到照片表中？

OperationalError at /register/
(1054, "Unknown column 'bible_photo.profile_id' in 'field list'")

这是我模板中的代码行，它正在抱怨。我想看看我是否可以从照片中访问个人资料。

{% for p in photos %}
    <h1>{{ p.profile }}</h1>
{% endfor %}

Answer 1

像这样更改models.py：

class TProfiles(models.Model):
    first_name = models.CharField(max_length=45, blank=True)
    surname = models.CharField(max_length=45, blank=True)
    email = models.CharField(max_length=45, blank=True)
    unique_id = models.CharField(max_length=100, blank=True)

    class Meta:
        managed = False
        db_table = 'profiles'

class Photo( models.Model ):
    file = models.FileField( upload_to = settings.MEDIA_ROOT )
    file_name = models.CharField(max_length=45, blank=True)
    unique_id = models.CharField(max_length=100, blank=True)
    event_location_time = models.ForeignKey(TProfiles)      

    def extension(self):
        name, extension = os.path.splitext(self.file.name)
        return extension

然后改变你的view：

def register(request):
    profiles = TProfiles.objects.all()

    return render_to_response("register.html", {
        "form": form, "profiles": profiles,
    }, RequestContext(request))

在您的template中，您可以使用：

{% for profile in profiles %}
    #access to profile object
    {% for photo in profile.photo_set.all %}
     #access to each profile photo object
    {% endfor %} 
{% endfor %}

使用公共列将两个模型连接在一起

1 个答案: