Django 一对多模型和管理内联

Django One-To-Many Model and Admin inlines

我正在尝试在 Django 中定义 2 个模型,如下所示:

class Selector(models.Model):
    # A Beautiful Soup selector
    selector = models.CharField(max_length=ELEMENT_SELECTOR_MAX_LENGTH, null=True, blank=True)

    def __str__(self):
        return self.selector


class Provider(models.Model):
    # Articles' parent container selector
    articles_parent_container_selector = models.ForeignKey(Selector, related_name="articles_parent_container",
                                                          help_text=_("Beautiful Soup selector for all articles' "
                                                                      "parent container"))

    # Article's parent container selector
    article_parent_container_selector = models.ForeignKey(Selector, related_name="article_parent_container_selector",
                                                         help_text=_("Beautiful Soup selector for each article"))

等等等 我们的想法是为 Provider 模型的每个字段设置多个选择器。

我试图在管理应用程序中实现的是为提供程序模型的每个字段提供 charField 内联。

所以我的admin.py就像

from django.contrib import admin

from .models import Provider, Selector


class SelectorInline(admin.StackedInline):
    model = Selector


class ProviderAdmin(admin.ModelAdmin):
    inlines = [
        SelectorInline,
    ]

admin.site.register(Provider, ProviderAdmin)

我收到错误

<class 'news_providers.admin.SelectorInline'>: (admin.E202) 'news_providers.Selector' has no ForeignKey to 'news_providers.Provider'.

我也试过了

class SelectorInline(admin.StackedInline):
    model = Selector
    fk_name = 'articles_parent_container'

如此处所述:Django inline forms with multiple foreign keys

但现在的错误是:

<class 'news_providers.admin.SelectorInline'>: (admin.E202) 'news_providers.Selector' has no field named 'articles_parent_container'.

还尝试更改我与 ManyToMany 的关系(这似乎也与我的用例更相关)并应用此处找到的技巧:http://www.mc706.com/tip_trick_snippets/18/django-manytomany-inline-admin/,但运气不好:/

这应该很简单,但恐怕 django 开发人员没有注意到这个用例?

谢谢!

显然,没有内置功能可以在另一个模型页面中显示内联多对多模型。

你能做的最好的事情就是像这样定义模型

models.py

class Selector(models.Model):
    # A Beautiful Soup selector
    selector = models.CharField(max_length=70, null=True, blank=True)

class Provider(models.Model):

    # Articles' parent container selector
    articles_parent_container_selector = models.ManyToManyField(Selector, blank=True,
                                                                help_text=_("Beautiful Soup selector for all articles' "
                                                                            "parent container."),
                                                                related_name='articles_parent_container')

admin.py

class ArticlesParentContainerSelectorInline(admin.TabularInline):
    model = Provider.articles_parent_container_selector.through
    verbose_name = "Articles' parent container selector"

class ProviderAdmin(admin.ModelAdmin):
    inlines = [
        ArticlesParentContainerSelectorInline,

    ]
    exclude = ('articles_parent_container_selector',)

admin.site.register(Provider, ProviderAdmin)

您将得到如下所示:

这有点令人失望,因为我希望获得文本输入而不是下拉菜单(甚至两者都有),因此我可以添加选择器而无需单击加号...

我倾向于为管理应用程序创建我自己的小部件。

总之,感谢大家耐心阅读!