我的基于原型的内容类型无法查看 [英] My Archetypes-based content type can't be viewed

问题描述

我有一个小的Plone扩展，其中包含一个简单的基于原型的内容类型(与我以前无法添加TTW的内容类型相同，请参见在GitHub上.

I have a little Plone extension which contains a simple Archetypes-based content type (the same which I had not been able to add TTW, see my previous question); the project setup is on GitHub.

添加对象后，在执行plone.abovecontenttitle内容提供程序的过程中得到一个KeyError: 'view':

After adding an object, I get a KeyError: 'view' during execution of the plone.abovecontenttitle content provider:

{'container': <MyType at /plone/test-for-new-types/a-mytype-object>,
 'context': <MyType at /plone/test-for-new-types/a-mytype-object>,
 'default': <object object at 0x7fc4f8ebe520>,
 'here': <MyType at /plone/test-for-new-types/a-mytype-object>,
 'loop': {},
 'nothing': None,
 'options': {'args': ()},
 'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0x7fc4c9484db8>,
 'request': <HTTPRequest, URL=https://my.testing.site/test-for-new-types/a-mytype-object/mytype_view>,
 'root': <Application at >,
 'template': <FSPageTemplate at /plone/test-for-new-types/a-mytype-object/mytype_view>,
 'traverse_subpath': [],
 'user': <PloneUser 'me'>}

在develop模式下安装我的小扩展程序，应该可以轻松重现.

It should be reproducible easily with my little extension installed in develop mode.

修改: 我注意到，在已安装产品"视图(/portal_quickinstaller/MyCompany.MyProduct/manage_installationInfo)中，我的产品具有Status: installed和Types MyType，但是Content Type Registry entries为空(None).

I noticed that, in the "Installed Product" view (/portal_quickinstaller/MyCompany.MyProduct/manage_installationInfo), my product has Status: installed and Types MyType, but Content Type Registry entries is empty (None).

推荐答案

内容提供者调用适配器，该适配器期望出现view参数，并且不提供基于皮肤的模板，这与基于浏览器的模板. 为了解决这个问题，我们可以像在main_template中一样使用全局@@plone -var [2]，因为@@plone是BrowserView的实例，它提供了视图参数:

Content-providers call adapters, which expect a view-argument to be present[1] and skin-based templates don't provide, in contradiction to browser-based templates. To fix that, we can use the global @@plone-var[2] like it's done in main_template, because @@plone is an instance of BrowserView, it provides the view-argument:

tal:define="view context/@@plone;"

这让我觉得，内容提供者正在使用的适配器应该考虑没有可用视图的情况.

Which makes me think, the adapters the content-providers are using, should regard the case that no view is available.

如果您希望拥有通常的网站结构并仅自定义内容部分，则还可以将模板填充到内容槽中，然后main_template的所有内容都将被继承，并且view-var也将被继承:

In case you want to have the usual site-structure and just customize the content-part, you could also fill your template into the content-slot, then everything from main_template is inherited, also the view-var:

<metal:main metal:use-macro="context/main_template/macros/master">
  <metal:content fill-slot="content">
    Hey, a working content-provider:
    <div tal:replace="structure provider:plone.abovecontenttitle" />
    Oh, so much more much, here...
  </metal:content>
</metal:main>

我建议这样做，因为那样您就不必担心在标头部分中做的一切正确了.例如.不必使用"raiseAnon"，因为该项目的工作流状态正在处理该问题，并且将评估当前语言等内容.

Which I would recommend, because then you don't need to worry about doing everything right in the header-part. E.g. using "raiseAnon" shouldn't be necessary, because the item's workflow-state is taking care of that and things like the current language will be evaluated, etc.

如果您只想自定义内容项的正文部分，将content更改为content-core，则通常将显示内容提供者，那么无论如何您都不需要插入它们要他们按通常的顺序.

If you only want to customize the body-part of the content-item, change content to content-core, the usual content-providers will be rendered then anyways, you don't need to insert them, if you want them in the usual order.

[1] https://docs. plone.org/4/en/old-reference-manuals/portlets/rendered.html

[2] https://github.com/plone/Products.CMFPlone/blob/master/Products/CMFPlone/browser/ploneview.py

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