def visit(self, key, attribute_options):
# We only collect load options for attributes which are explicitly not
# ignored or member attributes unless they are explicitly ignored.
ignore_opt = attribute_options.get(IGNORE_OPTION)
if not ignore_opt is True:
rc = get_member_class(self._context)
entity_attr_names = []
store_key = True
for idx, attr_name in enumerate(key):
attr = get_resource_class_attribute(rc, attr_name)
if attr is None:
# Referencing non-existing attribute; ignore.
store_key = False
break
elif idx == 0 \
and is_collection_attribute(attr) \
and not ignore_opt is False:
# Referencing collection attribute which was not
# explicitly enabled.
store_key = False
break
entity_attr_name = attr.entity_attr
if is_terminal_attribute(attr):
if '.' in entity_attr_name:
entity_attr_name = \
entity_attr_name[:entity_attr_name.rfind('.')]
else:
store_key = False
break
entity_attr_names.append(entity_attr_name)
rc = attr.attr_type
if store_key:
self.__attr_map[key] = entity_attr_names
def _get_proxied_attribute_value(self, attribute):
if not is_terminal_attribute(attribute):
val = self._get_relatee(attribute)
else:
try:
val = self._data.data[attribute.repr_name]
except KeyError:
raise AttributeError(attribute)
return val
def get_relationship_attributes(self):
"""
Returns an iterator over the relationship attributes (i.e.,
non-terminal attributes) of the proxied data.
:returns: iterator yielding objects implementing
:class:`everest.resources.interfaces.IResourceAttribute`.
"""
for attr in self._attribute_iterator():
if not is_terminal_attribute(attr):
yield attr
def get_relationship_attributes(self):
"""
Returns an iterator over the relationship attributes (i.e.,
non-terminal attributes) of the proxied data.
:returns: iterator yielding objects implementing
:class:`everest.resources.interfaces.IResourceAttribute`.
"""
for attr in self._attribute_iterator():
if not is_terminal_attribute(attr):
yield attr
def _get_proxied_attribute_value(self, attribute):
if not is_terminal_attribute(attribute):
val = self.__get_relatee(attribute)
else:
val = self._data.get_attribute(attribute.repr_name)
return val
def test_is_terminal_attribute(self):
self.assert_true(is_terminal_attribute(self.terminal_attr))
self.assert_false(is_terminal_attribute(self.member_attr))
def test_is_terminal_attribute(self, attr_name):
mb_attr = member_attribute(Member, attr_name)
assert is_terminal_attribute(mb_attr) is False
t_attr = terminal_attribute(int, attr_name)
assert is_terminal_attribute(t_attr) is True
def _get_proxied_attribute_value(self, attribute):
if not is_terminal_attribute(attribute):
val = self.__get_relatee(attribute)
else:
val = self._data.get_attribute(attribute.repr_name)
return val
def test_is_terminal_attribute(self, attr_name):
mb_attr = member_attribute(Member, attr_name)
assert is_terminal_attribute(mb_attr) is False
t_attr = terminal_attribute(int, attr_name)
assert is_terminal_attribute(t_attr) is True