def __init__(self, context, request, form, retrieve_data=True,
defaults=None):
""" Initiate the form view. If retrieve_data is True(ish), the
submission handler will be asked for the data. If defaults is
given, any fields available in the defaults will be preloaded.
"""
if not defaults:
defaults = {}
self.context = context
self.request = request
self.form = form
# vocabs
for method in getmembers(context, ismethod):
if getattr(method[1], "__vocab__", False):
Registry.register_vocab(method[0], method[1])
if retrieve_data:
try:
data = self.form.submission.retrieve(form, context)
self.form.data.update(data)
except:
pass
if defaults:
for key in defaults.keys():
self.form.data.getField(key).value = defaults[key]
