def on_bind(self) -> None:
assert self.template
for k, v in getattr(self.parent.parent, '_fields_unapplied_data',
{}).get(self.name, {}).items():
setattr_path(self, k, v)
form = self.parent.parent
if self.attr is MISSING:
self.attr = self.name
if self.display_name is MISSING:
self.display_name = capitalize(self.name).replace(
'_', ' ') if self.name else ''
self.errors = Errors(parent=self, **self.errors)
if form.editable is False:
self.editable = False
self.declared_field = self._declared
def on_bind(self) -> None:
if self.parent is not None and self.parent.parent is not None:
for k, v in getattr(self.parent.parent, '_actions_unapplied_data', {}).get(self.name, {}).items():
setattr_path(self, k, v)
evaluated_attributes = [
'tag',
'group',
'template',
'display_name',
'name',
'after',
'default_child',
'style',
]
for key in evaluated_attributes:
self._evaluate_attribute(key)
self.extra_evaluated = evaluate_strict_container(self.extra_evaluated, **self.evaluate_attribute_kwargs())
self.attrs = evaluate_attrs(self, **self.evaluate_attribute_kwargs())
def test_getattr_path_and_setattr_path():
class Baz:
def __init__(self):
self.quux = 3
class Bar:
def __init__(self):
self.baz = Baz()
class Foo:
def __init__(self):
self.bar = Bar()
foo = Foo()
assert getattr_path(foo, 'bar__baz__quux') == 3
setattr_path(foo, 'bar__baz__quux', 7)
assert getattr_path(foo, 'bar__baz__quux') == 7
setattr_path(foo, 'bar__baz', None)
assert getattr_path(foo, 'bar__baz__quux') is None
setattr_path(foo, 'bar', None)
assert foo.bar is None
def test_getattr_path_and_setattr_path():
class Baz(object):
def __init__(self):
self.quux = 3
class Bar(object):
def __init__(self):
self.baz = Baz()
class Foo(object):
def __init__(self):
self.bar = Bar()
foo = Foo()
assert 3 == getattr_path(foo, 'bar__baz__quux')
setattr_path(foo, 'bar__baz__quux', 7)
assert 7 == getattr_path(foo, 'bar__baz__quux')
setattr_path(foo, 'bar__baz', None)
assert None is getattr_path(foo, 'bar__baz__quux')
setattr_path(foo, 'bar', None)
assert None is foo.bar
def write_to_instance(field: 'Field', instance: Any, value: Any) -> None:
setattr_path(instance, field.attr, value)