def __init__(self, *args, **kwargs):
"""
Initialize a Schema.
The first positional argument may be a sequence of
Fields. (All further positional arguments are ignored.)
Keyword arguments are added to my properties.
"""
Schemata.__init__(self)
self._props = self._properties.copy()
self._props.update(kwargs)
if len(args):
if type(args[0]) in [ListType, TupleType]:
for field in args[0]:
self.addField(field)
else:
msg = (
"You are passing positional arguments "
"to the Schema constructor. "
"Please consult the docstring "
"for %s.BasicSchema.__init__" % (self.__class__.__module__,)
)
level = 3
if self.__class__ is not BasicSchema:
level = 4
warn(msg, level=level)
for field in args:
self.addField(args[0])
def updateSecurity(self, klass, field, mode, methodName):
security = _getSecurity(klass)
perm = _modes[mode]['security']
perm = getattr(field, perm, None)
method__roles__ = getattr(klass, '%s__roles__' % methodName, 0)
# Check copied from SecurityInfo to avoid stomping over
# existing permissions.
if security.names.get(methodName, perm) != perm:
warn('The method \'%s\' was already protected by a '
'different permission than the one declared '
'on the field. Assuming that the explicit '
'permission declared is the correct one and '
'has preference over the permission declared '
'on the field.' % methodName)
elif method__roles__ is None:
security.declarePublic(methodName)
elif method__roles__ == ():
security.declarePrivate(methodName)
else:
security.declareProtected(perm, methodName)
