Derek Richardson wrote:
I have a schema (the Tuple of Objects is the important part):
class ISyndications(Interface):
"""Annotation that indicates the object can provide IFeed
and that stores the current syndication configuration.
"""
enabled = Bool(title=_(u'Enable syndication'),
description=_(u'...'),
default=False,
)
syndications = Tuple(title=_(u'Feeds'),
description=_(u'...'),
required=False,
default=(),
value_type=Object(title=_(u'Feed'),
description=_(u'...'),
schema=ISyndication,
),
)
def findSyndicationByLocalURL(url):
"""Find an ISyndication in syndications by the local URL it
contains.
"""
The subschema is (the UUID field is the important part):
class ISyndication(Interface):
"""Configuration for an individual feed.
"""
name = TextLine(title=_(u'Name'),
description=_(u'...'),
)
format = Choice(title=_(u'Format'),
description=_(u'Data format for this feed'),
values=[u'atom', u'rss 1.0', u'rss 2.0'],
)
recurse = Bool(title=_(u'Recurse'),
description=_(u'...'),
default=False,
)
enabled = Bool(title=_(u'Enabled'),
description=_(u'...'),
default=True,
)
referring_URL = URI(title=_(u'URL'),
description=_(u'...'),
)
local_URL = URI(title=_(u'Local URL'),
description=_(u'...'),
)
UUID = TextLine(title=_(u'UUID'),
description=_(u'UUID for this feed.'),
required=False,
readonly=True,
)
I want to populate the UUID upon creation from a function. So I tried
this (the __init__ is the important part):
class Syndication(persistent.Persistent):
"""See ISyndication
"""
implements(ISyndication, IItemUUIDable)
self.name = u''
self.format = u''
self.recurse = False
self.enabled = False
self.referring_URL = None
self.local_URL = None
def __init__(self):
self.UUID = uuid1()
However, the UUID field does not show up in the interface as initialized
when I do:
class SyndicationsEditForm(EditForm):
"""Edit form for syndications.
"""
form_fields = Fields(ISyndications)
ow = CustomWidgetFactory(ObjectWidget, Syndication)
sw = CustomWidgetFactory(SequenceWidget, subwidget=ow)
form_fields['syndications'].custom_widget = sw
label = u'Configure syndications'
This seems like it should be an easy thing to do. Who can tell me what
I'm doing wrong?
Thanks,
Derek
The problem *may* stem from sequencewidget.py (lines 235-239 in Zope 3.3.1):
# add an entry to the list if the add button has been pressed
if self.name + ".add" in self.request.form:
# Should this be using self.context.value_type.missing_value
# instead of None?
sequence.append(None)
When I hack it just to prove a point, like so:
# add an entry to the list if the add button has been pressed
if self.name + ".add" in self.request.form:
# Should this be using self.context.value_type.missing_value
# instead of None?
from plone.syndication.syndication import Syndication
sequence.append(Syndication())
#sequence.append(None)
The UUID field gets populated.
But I'm not sure where to go with this. I don't see any bugs for SequenceWidget
on launchpad, so I'm still figuring I'm doing something wrong...
Derek
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