CMF 皮肤中的模板是否可以被 Zope 3 浏览器：页面覆盖？

发布于 2024-10-07 12:37:57 字数 151 浏览 6 评论 0 原文

我正在尝试使用具有相同 name= 属性的 覆盖 CMF 皮肤层提供的视图。这在 Plone 中可能吗，或者浏览器视图只能覆盖其他浏览器视图吗？

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慈悲佛祖 2024-10-14 12:37:57

（这有点晚了，但到底是什么）

CMF 皮肤层覆盖浏览器视图。这就是为什么您必须在 URL 中的 browserview 名称前面放置 @@ ，即消除歧义并确保调用 browserview 而不是 CMF 皮肤层模板。

所以简而言之，如果你把@@放在前面，browserview就会覆盖，否则不会。

即：

localhost:8080/Plone/@@myview

覆盖：

localhost:8080/Plone/myview

要解决此问题，请覆盖 CMF 皮肤层中的模板，并 tal:define View 变量指向您的 @@myview。然后，您仍然可以从 CMF 皮肤层模板访问 BrowserViews 方法。

(This is a bit late, but what the hell)

CMF Skin layers override browser views. That is why you have to put @@ in front of a browserview's name in an URL, i.e to disambiguate it and make sure that the browserview is called instead of the CMF skin layer template.

So in short, if you put @@ in front, the browserview will override, otherwise not.

i.e:

localhost:8080/Plone/@@myview

overrides:

localhost:8080/Plone/myview

To overcome this, override the template in your CMF skin layer and tal:define the View variable to point to your @@myview. You can then still access the BrowserViews methods from the CMF skin layer template.

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回忆躺在深渊里 2024-10-14 12:37:57

默认情况下，CMF 皮肤机制在查找视图之前先查找portal_skins。您可以通过自定义 IPublishTraverse 适配器来更改此设置。这有点邪恶，但这可能有效（在 Plone 3 中测试 - 我不是 100% 确定 Plone 4 中的默认行为是什么）：

from zope.component import adapts, queryMultiAdapter
from zope.publisher.interfaces.browser import IBrowserRequest 

from Acquisition import aq_base
from ZPublisher.BaseRequest import DefaultPublishTraverse
from Products.CMFCore.Skinnable import SKINDATA, SkinnableObjectManager

from thread import get_ident

_MARKER = object()

class SkinnableTraverser(DefaultPublishTraverse):
    adapts(SkinnableObjectManager, IBrowserRequest)

    def publishTraverse(self, request, name):
        """Let the default traverser do its job, but if the thing that was
        returned was from a skin layer and there's a view with
        the same name, let the view win.
        """

        gotten = super(SkinnableTraverser, self).publishTraverse(request, name) 

        if not name.startswith('_') and not name.startswith('aq_'):
            sd = SKINDATA.get(get_ident())
            if sd is not None:
                ob, skinname, ignore, resolve = sd
                if resolve.get(name, None) is aq_base(gotten):
                    # This was retrieved as a skin resource
                    # Check if it could've been a view also

                    view = queryMultiAdapter((self.context, request), name=name)
                    if view is not None:
                        return view.__of__(self.context)

        return gotten

您需要将其注册为：

<adapter factory=".skins.SkinnableTraverser" />

可能在 overrides.zcml 中。另一种选择是在请求上使用更具体的标记接口，例如通过 browserlayer.xml 导入步骤安装的标记接口。

马丁

By default, the CMF skins mechanism looks in portal_skins before looking up a view. You can change this by customising the IPublishTraverse adapter. It's a bit evil, but this may work (tested in Plone 3 - I'm not 100% sure what the default behaviour is in Plone 4):

from zope.component import adapts, queryMultiAdapter
from zope.publisher.interfaces.browser import IBrowserRequest 

from Acquisition import aq_base
from ZPublisher.BaseRequest import DefaultPublishTraverse
from Products.CMFCore.Skinnable import SKINDATA, SkinnableObjectManager

from thread import get_ident

_MARKER = object()

class SkinnableTraverser(DefaultPublishTraverse):
    adapts(SkinnableObjectManager, IBrowserRequest)

    def publishTraverse(self, request, name):
        """Let the default traverser do its job, but if the thing that was
        returned was from a skin layer and there's a view with
        the same name, let the view win.
        """

        gotten = super(SkinnableTraverser, self).publishTraverse(request, name) 

        if not name.startswith('_') and not name.startswith('aq_'):
            sd = SKINDATA.get(get_ident())
            if sd is not None:
                ob, skinname, ignore, resolve = sd
                if resolve.get(name, None) is aq_base(gotten):
                    # This was retrieved as a skin resource
                    # Check if it could've been a view also

                    view = queryMultiAdapter((self.context, request), name=name)
                    if view is not None:
                        return view.__of__(self.context)

        return gotten

You need to register this with:

<adapter factory=".skins.SkinnableTraverser" />

Possibly in an overrides.zcml. Another option would be to use a more specific marker interface on the request, e.g. one installed via the browserlayer.xml import step.

Martin

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