def calcFieldNames(self, path = [], force_prefix = False):
''' prefixes the field names with the parent field name '''
_fields = self.Schema()._fields
for f in self.Schema().fields():
if not getattr(f, 'prefixed', False) or force_prefix:
# calcFieldNames are often called several times for the same
# field, e.g. when copying a schema. We do not want to perform
# prefixing everytime this method is called. We only want to
# prefix field names in two cases:
# a) The first time we process a field
# b) If calcFieldNames is called recursively on subfields, to
# apply the correct parent field names to the prefixing of a
# subfield. In this case we set the paramter force_prefix.
if not getattr(f, 'prefixed', False):
# only set old_name the first time we prefix a field - old_name
# is the original field name, that we want to use in all prefixings of a field.
f.old_name = f.getName()
f.prefixed = 1
f.__name__ = config.COMPOUND_FIELD_SEPERATOR.join(
[getattr(field, 'old_name', field.getName()) for field in path + [self] + [f]])
#del _fields[old_name]
_fields[f.__name__] = f
if ICompoundField.providedBy(f):
f.calcFieldNames(path = path + [self], force_prefix = True)
def calcFieldNames(self, path=[], force_prefix=False):
''' prefixes the field names with the parent field name '''
_fields = self.Schema()._fields
for f in self.Schema().fields():
if not getattr(f, 'prefixed', False) or force_prefix:
# calcFieldNames are often called several times for the same
# field, e.g. when copying a schema. We do not want to perform
# prefixing everytime this method is called. We only want to
# prefix field names in two cases:
# a) The first time we process a field
# b) If calcFieldNames is called recursively on subfields, to
# apply the correct parent field names to the prefixing of a
# subfield. In this case we set the paramter force_prefix.
if not getattr(f, 'prefixed', False):
# only set old_name the first time we prefix a field - old_name
# is the original field name, that we want to use in all prefixings of a field.
f.old_name = f.getName()
f.prefixed = 1
f.__name__ = config.COMPOUND_FIELD_SEPERATOR.join([
getattr(field, 'old_name', field.getName())
for field in path + [self] + [f]
])
#del _fields[old_name]
_fields[f.__name__] = f
if ICompoundField.providedBy(f):
f.calcFieldNames(path=path + [self], force_prefix=True)
def getAttributes(self, instance, exclude_attrs=()):
# remove fields delegated to other namespaces
fields = instance.Schema().fields()
for f in fields:
if ICompoundField.isImplementedBy(f):
yield self.getAttributeByName(f.getName())
def getAttributes(self, instance, exclude_attrs=()):
# remove fields delegated to other namespaces
fields = instance.Schema().fields()
for f in fields:
if ICompoundField.isImplementedBy(f):
yield self.getAttributeByName(f.getName())
