在Dexterity中使用collective.z3cform.datagridfield

Question

我对Plone还不是很熟悉，现在在尝试用DataGridField和Dexterity一起使用。我的目标是利用Plone 4.1在我们的内部网发布一项可用性研究的结果。我创建了一个自定义文档类型（叫做Interaction），想用数据表格来展示一个包含两列的表格，显示研究结果的总结。

根据collective.z3cform.datagridfield上的说明，我已经成功地把collective.z3cform.datagrid这个包添加到我的构建列表中，现在在我的网站的插件列表中可以看到这个新插件是激活状态。我还创建了一个简单的Python模块，描述了一个文档，记录了我正在整理的可用性研究的发现：

from five import grok
from zope import schema
from zope import interface

from plone.directives import form

from plonetheme.mytheme import InteractionMessageFactory as _

from plone.app.textfield import RichText

from z3c.form import field, button
from Products.CMFCore.interfaces import IFolderish

from collective.z3cform.datagridfield import DataGridFieldFactory, DictRow

class IFinding(interface.Interface):
    summary = schema.TextLine(title=_(u"Summary"))
    percentage = schema.TextLine(title=_(u"Percentage"))

class IInteraction(form.Schema):

    findings = schema.List(
        title=_(u"Overview of findings"),
        required=False,
        value_type=DictRow(
            title=_(u"Finding"),
            schema=IFinding
            )
        )

class EditForm(form.EditForm):
    grok.context(IInteraction)
    grok.require('zope2.View')
    fields = field.Fields(IInteraction)

    fields['findings'].widgetFactory = DataGridFieldFactory

我通过在profiles/default/types.xml文件中添加一行，注册了我的新Interaction内容类型：

<?xml version="1.0"?>
<object meta_type="Plone Types Tool" name="portal_types">
<property name="title">Controls the available content types in your portal</property>
<object meta_type="Dexterity FTI" name="interaction" />
<!-- -*- extra stuff goes here -*- -->
</object>

为了完整性，我还包括了相应的profiles/default/types/interaction.xml文件：

<?xml version="1.0"?>
<object name="interaction" meta_type="Dexterity FTI"
   xmlns:i18n="http://xml.zope.org/namespaces/i18n">
 <property name="title">Interaction</property>
 <property name="description">An item in the interactions dictionary</property>
 <property name="icon_expr">string:${portal_url}/document_icon.png</property>
 <property name="factory">interaction</property>
 <property name="link_target"></property>
 <property name="immediate_view">view</property>
 <property name="global_allow">True</property>
 <property name="filter_content_types">True</property>
 <property name="allowed_content_types"/>
 <property name="allow_discussion">False</property>
 <property name="default_view">view</property>
 <property name="view_methods">
  <element value="view"/>
 </property>
 <property name="default_view_fallback">False</property>
 <property name="add_permission">cmf.AddPortalContent</property>
 <property name="klass">plone.dexterity.content.Item</property>
 <property name="behaviors">
  <element value="plone.app.dexterity.behaviors.metadata.IDublinCore"/>
  <element value="plone.app.content.interfaces.INameFromTitle"/>
  <element value="collective.flowplayer.behaviors.IFlowplayerFile"/>
 </property>
 <property name="schema">plonetheme.mytheme.interaction.IInteraction</property>

 <property name="model_file"></property>
 <alias from="(Default)" to="(dynamic view)"/>
 <alias from="edit" to="@@edit"/>
 <alias from="sharing" to="@@sharing"/>
 <alias from="view" to="(selected layout)"/>
 <action title="View" action_id="view" category="object" condition_expr=""
    icon_expr="" link_target="" url_expr="string:${object_url}"
    visible="True">
  <permission value="View"/>
 </action>
 <action title="Edit" action_id="edit" category="object" condition_expr=""
    icon_expr="" link_target="" url_expr="string:${object_url}/edit"
    visible="True">
  <permission value="Modify portal content"/>
 </action>
</object>

当我去添加我的Interaction自定义类型的表单时，看到的却是一个标准的Dexterity列表项添加/删除小部件，而不是在collective.z3cform.datagrid_demo示例中看到的数据表格小部件。当我尝试保存这个自定义类型时，Dexterity列表小部件显示了一个验证错误，提示“系统无法处理给定的值。”

我还需要添加其他代码吗？我需要覆盖Dexterity的添加/编辑表单视图模板吗？

web development plone xml configuration form validation dexterity datagridfield usability research custom content type

在Dexterity中使用collective.z3cform.datagridfield

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