Question

我正在编写一个升级步骤，将记录添加到将在控制面板configlet上使用的注册表中。

我首先添加了一个带有 registry.xml 文件的配置文件但是我应该有一种方法可以以编程方式完成此操作以避免为此创建和注册GS配置文件

我阅读了plone.registtry的文档，根据它，列表的 value_type 属性可能只包含持久字段，因此我推出了此代码：

from collective.cover import _
from collective.cover.config import DEFAULT_AVAILABLE_TILES
from collective.cover.config import PROJECTNAME
from plone.registry import field
from plone.registry import Record
from plone.registry.interfaces import IRegistry
from zope.component import getUtility

import logging


def register_available_tiles_record(context, logger=None):
    """Handler for upgrade step from 2 to 3; adds the 'available_tiles' record
    to the registry.
    """
    if logger is None:
        logger = logging.getLogger(PROJECTNAME)

    registry = getUtility(IRegistry)
    record = 'collective.cover.controlpanel.ICoverSettings.available_tiles'

    if record not in registry.records:
        available_tiles = field.List(
            title=_(u"Available tiles"),
            description=_(u"This tiles will be available for layout creation."),
            required=True,
            default=DEFAULT_AVAILABLE_TILES,
            value_type=field.Choice(
                vocabulary=u'collective.cover.EnabledTiles'),
        )

        registry.records[record] = Record(available_tiles)
        logger.info("'available_tiles' record was added to the registry")
    else:
        logger.info("'available_tiles' record already exists in the registry")

但是当我运行处理程序时，我收到以下错误：

Error in test test_from_2_to_3 (collective.cover.tests.test_upgrades.UpgradeStepsTestCase)
Traceback (most recent call last):
  File "/home/hvelarde/buildout.python/parts/opt/lib/python2.7/unittest/case.py", line 327, in run
    testMethod()
  File "/home/hvelarde/collective/cover/src/collective/cover/tests/test_upgrades.py", line 35, in test_from_2_to_3
    register_available_tiles_record(self.portal)
  File "/home/hvelarde/collective/cover/src/collective/cover/upgrades.py", line 31, in register_available_tiles_record
    vocabulary=u'collective.cover.EnabledTiles'),
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_field.py", line 458, in __init__
    super(AbstractCollection, self).__init__(**kw)
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_bootstrapfields.py", line 306, in __init__
    super(MinMaxLen, self).__init__(**kw)
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_bootstrapfields.py", line 157, in __init__
    self.default = default
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_bootstrapfields.py", line 53, in __set__
    inst.validate(value)
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_bootstrapfields.py", line 182, in validate
    self._validate(value)
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_field.py", line 476, in _validate
    errors = _validate_sequence(self.value_type, value)
  File "/home/hvelarde/.buildout/eggs/zope.schema-4.2.2-py2.7.egg/zope/schema/_field.py", line 438, in _validate_sequence
    value_type.validate(item)
AttributeError: 'InterfaceConstrainedProperty' object has no attribute 'validate'

我在这里做错了什么？

Answer 1

在我看来这是plone.registry的限制/错误;我最终在升级步骤中注册了正常的注册表。

有兴趣的人可以在这里看到：https://github.com/collective/collective.cover/commit/137211a84a575fc03fbb84e0cbd091bec85a6ab7

如何以编程方式添加plone.registry记录

1 个答案: