Hi all,
I'm trying to figure out the easiest way to get fields holding Files or
Images in my content type class.
I've tried the following:
I've tried using the Object field specifying the
zope.app.file.interfaces.IFile as the schema and then
implement a CustomWidgetFactory with zope.app.file.file.File
as the factory.
This actually looks ok both in the AddView and the EditView
but the updates fail (due to cPickle.UnpickleableError: Cannot pickle
<type 'zope.security._proxy._Proxy'> objects, which sounds like the
File object needs to be removed from it's proxy somewhere in the chain?)
Any thought on how to solve this problem (my approach or other approach)?
Regards,
Johan
Here is my code (which uses the Poll as base, that stuff has been
removed though):
interfaces.py:
from zope.interface import Interface
from zope.schema import Object
from zope.app.file.interfaces import IFile
from zope.i18n import MessageIDFactory
_ = MessageIDFactory('poll')
class IPoll(Interface):
file=Object(IFile, title=_('File'))
poll.py:
from persistent import Persistent
from interfaces import IPoll
from zope.interface import implements, classImplements
from zope.app.file.file import File
class Poll(Persistent, object):
implements(IPoll)
file=None
browser.py:
from zope.interface import implements
from zope.app.form.browser.editview import EditView
from zope.app.form.browser.add import AddView
from zope.app.form import CustomWidgetFactory
from zope.app.form.browser import ObjectWidget
from interfaces import IPoll
from zope.app.file.file import File
fw = CustomWidgetFactory(ObjectWidget, File)
class PollEditView(EditView):
__used_for__ = IPoll
file_widget = fw
class PollAddView(AddView):
__used_for__ = IPoll
file_widget = fw
configure.zcml:
<configure xmlns="http://namespaces.zope.org/zope";
xmlns:browser="http://namespaces.zope.org/browser";
i18n_domain="poll">
<content class=".poll.Poll">
<factory id="zope.app.demo.poll2" />
<implements
interface="zope.app.annotation.interfaces.IAttributeAnnotatable"
/>
<require
permission="zope.View"
interface=".interfaces.IPoll"
/>
<require
permission="zope.ManageContent"
set_schema=".interfaces.IPoll"
/>
</content>
<browser:addform
schema=".interfaces.IPoll"
label="Add a Poll"
content_factory=".poll.Poll"
name="AddPoll2.html"
class=".browser.PollAddView"
permission="zope.ManageContent" />
<browser:addMenuItem
title="Poll 2 Demo"
description="Poll 2 Demo"
class=".poll.Poll"
view="AddPoll2.html"
permission="zope.ManageContent"
/>
<browser:editform
schema=".interfaces.IPoll"
class=".browser.PollEditView"
label="Change a Poll"
name="edit.html"
menu="zmi_views" title="Edit"
permission="zope.ManageContent" />
</configure>
--
Johan Carlsson Tel: + 46 8 31 24 94
Colliberty Mob: + 46 70 558 25 24
Torsgatan 72 Email: [EMAIL PROTECTED]
SE-113 37 STOCKHOLM
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