如何为z3cform创建一个新的contenttreewidget

Question

我试图覆盖用于相关项目的小部件(灵巧所以z3cform)这是从plone.formwidget.contenttree.widget导入MultiContentTreeWidget

我的问题是我不明白为什么我的例子试图找到一个组件IDataConverter那里没有IDataConverter的内容树小部件和它的父。

代码是:

#zope
from zope import interface
import z3c.form.interfaces
import z3c.form.widget
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
#plone
from plone.formwidget.contenttree.interfaces import IContentTreeWidget
from plone.formwidget.contenttree.widget import MultiContentTreeWidget
from plone.app.relationfield.widget import RelationListDataManager
#internal

class DatalistManager(RelationListDataManager):
    pass

class IMultiDatalistWidget(IContentTreeWidget):
    """Datalist widget marker for z3c.form """

class MultiDatalistWidget(MultiContentTreeWidget):
    interface.implementsOnly(IMultiDatalistWidget)
    input_template = ViewPageTemplateFile('templates/datalist_input.pt')
    klass = u'html5-datalist-multiselection-widget'
    js_template = """
    (function($) {
        $().ready(function() {
            console.log('autocomplete ready ?');
        });
    })(jQuery);
    """
    def js_extra(self):
        return ""

@interface.implementer(z3c.form.interfaces.IFieldWidget)
def MultiDatalistFieldWidget(field, request):
    """IFieldWidget factory for DatalistWidget."""
    return z3c.form.widget.FieldWidget(field, MultiDatalistWidget(request))

和zcml:

<configure
    xmlns="http://namespaces.zope.org/zope"
    xmlns:z3c="http://namespaces.zope.org/z3c"
    i18n_domain="collective.z3cform.html5widgets">
    <include package="plone.app.relationfield" />
    <!--  TRY TO OVERRIDE IRelationList default from plone.app.relationfield -->
    <adapter factory=".widget_datalist.MultiDatalistFieldWidget"
           for="z3c.relationfield.interfaces.IRelationList
                .layer.Layer"
           />
</configure>

如果我正在尝试这个小部件，我有以下回溯:

Traceback (innermost last):
  Module ZPublisher.Publish, line 126, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 46, in call_object
  Module plone.z3cform.layout, line 66, in __call__
  Module plone.z3cform.layout, line 50, in update
  Module z3c.form.form, line 208, in update
  Module plone.z3cform.patch, line 21, in BaseForm_update
  Module z3c.form.form, line 150, in update
  Module z3c.form.form, line 134, in updateWidgets
  Module z3c.form.field, line 277, in update
  Module z3c.formwidget.query.widget, line 183, in update
  Module z3c.formwidget.query.widget, line 230, in updateQueryWidget
  Module z3c.form.browser.checkbox, line 45, in update
  Module z3c.form.browser.widget, line 170, in update
  Module z3c.form.widget, line 221, in update
  Module z3c.form.widget, line 130, in update
TypeError: ('Could not adapt', <MultiDatalistWidget 'form.widgets.relatedItems'>, <InterfaceClass z3c.form.interfaces.IDataConverter>)

您可以在github上找到存储库:https://github.com/toutpt/collective.z3cform.html5widgets

Answer 1

我曾经用这个类覆盖小部件，以启用webmailer的上传功能。我认为您需要重写json的生成以使其与jQuery兼容。非常感谢你的工作。

这是我的类:http://pastie.org/7923172

希望能有所帮助。