def __init__(self, parent, idevice):
"""
Pre-create our field ids
"""
Block.__init__(self, parent, idevice)
# to compensate for the strange unpickling timing when objects are
# loaded from an elp, ensure that proper idevices are set:
if idevice.instructionsForLearners.idevice is None:
idevice.instructionsForLearners.idevice = idevice
if idevice.content.idevice is None:
idevice.content.idevice = idevice
if idevice.feedback.idevice is None:
idevice.feedback.idevice = idevice
self.instructionElement = \
TextAreaElement(idevice.instructionsForLearners)
self.DropDownElement = DropDownElement(idevice.content)
self.feedbackElement = \
TextAreaElement(idevice.feedback)
self.previewing = False # In view or preview render
if not hasattr(self.idevice, 'undo'):
self.idevice.undo = True
