Question

这是一个Post模型，当我在django admin中打开它来添加帖子时，我看到了一个字段内容类型，但没有下拉列表来选择内容类型。我在这里做错了吗？

class Post(models.Model):

    FEATURE_LIMITS = models.Q(app_label=u'forums', model=u'forum')

    content_type = models.ForeignKey(ContentType, limit_choices_to=FEATURE_LIMITS, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey('content_type', 'object_id')

admin.py 帖子

# imports

admin.site.register(posts_models.Post)

有一个模型论坛，与帖子有一般关系。

class Forum(models.Model):
    # other fields
    posts = GenericRelation(Post)

在django admin上看不到帖子字段（其他字段可见）。

论坛

的

admin.py

# imports

admin.site.register(forums_models.Forum)

如果我对admin.py进行更改：

class PostInline(GenericTabularInline):
    model = Post

class ForumAdmin(admin.ModelAdmin):
    inlines = [
        PostInline,
    ]

admin.site.register(forums_models.Forum, ForumAdmin)

然后在点击http://localhost:8000/admin/forums/forum/add/时，页面会永远加载。

Answer 1

您似乎错误地配置了应用程序。

我的项目结构

    let attrStr = try! NSAttributedString(
        data: "Your baby in week three\n" +
            "Three weeks into your pregnancy, and you might be wondering just how this little miracle occurred (as in the science bit we will assume you know the other part!). \n" +
            "\n" +
            "So here goes: the joining of your partner's sperm and your egg at the moment of conception resulted in a ball of cells (or a blastocyst, if you want to get really technical) which is now starting the 6 day journey from the fallopian tube to the uterus where it will attach itself to the lining of your womb and in nine months time, will result in a real live baby in your arms! \n" +
            "\n" +
            "Amazingly, although you will not know for a few months (or until the birth) the <b><font color=#00690c >sex of your baby</font></b> has already been determined. The fertilised egg contains <b><font color=#e3007b>46</font></b> chromosomes with <b><font color=#e3007b>23</font></b> from you and <b><font color=#e3007b>23</font></b> from the dad. You as mum will always provide the <b><font color=#e3007b>X</font></b> chromosome but the dad can provide an <b><font color=#e3007b>X</font></b> or <b><font color=#e3007b>Y</font></b> chromosome. <b><font color=#e3007b>XX</font></b> and you will be having a girl, <b><font color=#e3007b>XY</font></b> and you will have a little boy in 9 months time!".dataUsingEncoding(NSUnicodeStringEncoding, allowLossyConversion: true)!,
        options: [ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
        documentAttributes: nil)
    trimestercontent.attributedText = attrStr

所以 posts / models.py

app
|-settings/
|-forums/
|--models.py
|--admin.py
|-posts/
|--models.py
|--admin.py

<强>文章/ admin.py

class Post(models.Model):
    FEATURE_LIMITS = models.Q(app_label='forums', model='forum')

    name = models.CharField(max_length=100)

    content_type = models.ForeignKey(ContentType, limit_choices_to=FEATURE_LIMITS, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey('content_type', 'object_id')

<强>论坛/ models.py

from .models import Post

class PostInline(GenericTabularInline):
    model = Post

<强>论坛/ admin.py

class Forum(models.Model):
    # other fields
    name = models.CharField(max_length=100)
    posts = GenericRelation('posts.Post')

一切都像魅力一样。

我猜你有无限循环因为试图在错误的app中注册模型。（app from .models import Forum from posts.admin import PostInline @admin.register(Forum) class ForumAdmin(admin.ModelAdmin): inlines = [ PostInline, ]中的模型Forum）

Answer 2

我正在使用admin.widgets.ForeignKeyRawIdWidget widget来阻止外键字段正常显示。从那以后

content_type = models.ForeignKey(ContentType, limit_choices_to=FEATURE_LIMITS, on_delete=models.CASCADE)

content_type是外键字段，没有下拉列表。要防止这种情况发生，请在admin.py中进行以下更改：

class PostAdmin(admin.ModelAdmin):
    raw_id_field_excludes = 'content_type'

admin.site.register(Post, PostAdmin)

内容类型下拉列表未显示django管理员表单

2 个答案: