Django-grappelli添加按钮在添加权限为假时在内联中可见

Question

我不确定是我在做什么，还是有个bug，但我在TabularInline中的add按钮有一些奇怪的行为(使用grappelli的django admin )。我的内联类是：

class FieldInline(admin.TabularInline):
    model = models.Field
    classes = ('grp-collapse grp-closed',)

    fields = ('number', 'year', 'area')
    extra = 0

    def has_add_permission(self, request):
        return False

    def has_delete_permission(self, request, obj):
        return False

“添加”按钮在内联窗体集折叠时出现，但在其打开时消失。我试着深入研究了相关的jquery，但我不太熟悉这种语言，所以我不太确定我在寻找什么。

其他人也有这种行为吗？有明显的解决方案吗？

Answer 1

这是一个bug。我在github上打开了一个问题，因为我们将它用作Grappelli (https://github.com/sehmaschine/django-grappelli/issues/316)的问题跟踪器。

看过这个之后:隐藏按钮的可见性是一个css问题，用https://github.com/sehmaschine/django-grappelli/commit/da4d500c5e3b8f8dba5709b0378396131fad361d修复了这个问题。

Answer 2

The new javascript made this impossible because the "Add Another" button was controlled by max_num, and ignored a value of 0. The javascript ignored a value of 0 because max_num has a default value of 0, and all the code using it had taken to equating max_num = 0 with being "off". So you can't actually have a maximum of 0. It's not possible.

Gabrial Hurley创建了一个补丁，可以在不破坏任何其他行为的情况下恢复所需的行为。这是3年前的事了，我不知道它是否仍然适用于Django 1.5。只需尝试:)

https://code.djangoproject.com/attachment/ticket/13023/13023_inlines_patch.diff

这是同一个bug的罚单(3年前)：

https://code.djangoproject.com/ticket/13023

来自Kevin on experience：

I ran into the same issue because I had the static admin content in a directory that was outside of django's install. Copying the Django 1.5 static content from django/contrib/admin/static/admin/js/ to STATIC_ROOT/admin/js fixed the issue.