def _register_attribute(
strategy,
mapper,
useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw
):
prop = strategy.parent_property
attribute_ext = util.to_list(prop.extension) or []
if useobject and prop.single_parent:
attribute_ext.append(_SingleParentValidator(prop))
if getattr(prop, "backref", None):
attribute_ext.append(prop.backref.extension)
if prop.key in prop.parent._validators:
attribute_ext.append(mapperutil.Validator(prop.key, prop.parent._validators[prop.key]))
if useobject:
attribute_ext.append(sessionlib.UOWEventHandler(prop.key))
for m in mapper.polymorphic_iterator():
if (m is prop.parent or not m.concrete) and m.has_property(prop.key):
attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
**kw
)
def _register_attribute(
strategy,
mapper,
useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw
):
prop = strategy.parent_property
attribute_ext = list(util.to_list(prop.extension, default=[]))
if useobject and prop.single_parent:
attribute_ext.insert(0, _SingleParentValidator(prop))
if prop.key in prop.parent._validators:
attribute_ext.insert(0, mapperutil.Validator(prop.key, prop.parent._validators[prop.key]))
if useobject:
attribute_ext.append(sessionlib.UOWEventHandler(prop.key))
for m in mapper.self_and_descendants:
if prop is m._props.get(prop.key):
attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
doc=prop.doc,
**kw
)
def _register_attribute(strategy,
mapper,
useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw):
prop = strategy.parent_property
attribute_ext = util.to_list(prop.extension) or []
if useobject and prop.single_parent:
attribute_ext.append(_SingleParentValidator(prop))
if getattr(prop, 'backref', None):
attribute_ext.append(prop.backref.extension)
if prop.key in prop.parent._validators:
attribute_ext.append(
mapperutil.Validator(prop.key, prop.parent._validators[prop.key]))
if useobject:
attribute_ext.append(sessionlib.UOWEventHandler(prop.key))
for m in mapper.polymorphic_iterator():
if prop is m._props.get(prop.key):
attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
**kw)
def _register_attribute(strategy,
mapper,
useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw):
prop = strategy.parent_property
attribute_ext = list(util.to_list(prop.extension, default=[]))
if useobject and prop.single_parent:
attribute_ext.insert(0, _SingleParentValidator(prop))
if prop.key in prop.parent._validators:
attribute_ext.insert(
0, mapperutil.Validator(prop.key,
prop.parent._validators[prop.key]))
if useobject:
attribute_ext.append(sessionlib.UOWEventHandler(prop.key))
for m in mapper.self_and_descendants:
if prop is m._props.get(prop.key):
attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
doc=prop.doc,
**kw)
def _register_attribute(strategy,
mapper,
useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw):
prop = strategy.parent_property
attribute_ext = list(util.to_list(prop.extension, default=[]))
listen_hooks = []
if useobject and prop.single_parent:
listen_hooks.append(single_parent_validator)
if prop.key in prop.parent._validators:
listen_hooks.append(lambda desc, prop: mapperutil._validator_events(
desc, prop.key, prop.parent._validators[prop.key]))
if useobject:
listen_hooks.append(unitofwork.track_cascade_events)
# need to assemble backref listeners
# after the singleparentvalidator, mapper validator
backref = kw.pop('backref', None)
if backref:
listen_hooks.append(lambda desc, prop: attributes.backref_listeners(
desc, backref, uselist))
for m in mapper.self_and_descendants:
if prop is m._props.get(prop.key):
desc = attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
doc=prop.doc,
**kw)
for hook in listen_hooks:
hook(desc, prop)
def _register_attribute(strategy, mapper, useobject,
compare_function=None,
typecallable=None,
copy_function=None,
mutable_scalars=False,
uselist=False,
callable_=None,
proxy_property=None,
active_history=False,
impl_class=None,
**kw
):
prop = strategy.parent_property
attribute_ext = list(util.to_list(prop.extension, default=[]))
listen_hooks = []
if useobject and prop.single_parent:
listen_hooks.append(single_parent_validator)
if prop.key in prop.parent._validators:
listen_hooks.append(
lambda desc, prop: mapperutil._validator_events(desc,
prop.key,
prop.parent._validators[prop.key])
)
if useobject:
listen_hooks.append(unitofwork.track_cascade_events)
# need to assemble backref listeners
# after the singleparentvalidator, mapper validator
backref = kw.pop('backref', None)
if backref:
listen_hooks.append(
lambda desc, prop: attributes.backref_listeners(desc,
backref,
uselist)
)
for m in mapper.self_and_descendants:
if prop is m._props.get(prop.key):
desc = attributes.register_attribute_impl(
m.class_,
prop.key,
parent_token=prop,
mutable_scalars=mutable_scalars,
uselist=uselist,
copy_function=copy_function,
compare_function=compare_function,
useobject=useobject,
extension=attribute_ext,
trackparent=useobject,
typecallable=typecallable,
callable_=callable_,
active_history=active_history,
impl_class=impl_class,
doc=prop.doc,
**kw
)
for hook in listen_hooks:
hook(desc, prop)