本文整理汇总了Python中ggrc.models.reflection.AttributeInfo.get_attr方法的典型用法代码示例。如果您正苦于以下问题：Python AttributeInfo.get_attr方法的具体用法？Python AttributeInfo.get_attr怎么用？Python AttributeInfo.get_attr使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ggrc.models.reflection.AttributeInfo的用法示例。
在下文中一共展示了AttributeInfo.get_attr方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: do_update_attr
# 需要导入模块: from ggrc.models.reflection import AttributeInfo [as 别名]
# 或者: from ggrc.models.reflection.AttributeInfo import get_attr [as 别名]
def do_update_attr(cls, obj, json_obj, attr):
"""Perform the update to ``obj`` required to make the attribute attr
equivalent in ``obj`` and ``json_obj``.
"""
class_attr = getattr(obj.__class__, attr)
attr_reflection = AttributeInfo.get_attr(obj.__class__, "_api_attrs", attr)
update_raw = attr in AttributeInfo.gather_update_raw(obj.__class__)
if update_raw:
# The attribute has a special setter that can handle raw json fields
# properly. This is used for special mappings such as custom attribute
# values
attr_name = attr
value = json_obj.get(attr_name)
elif isinstance(attr_reflection, SerializableAttribute):
attr_name = attr
value = json_obj.get(attr)
if value:
value = attr_reflection.deserialize(value)
elif hasattr(attr, '__call__'):
# The attribute has been decorated with a callable, grab the name and
# invoke the callable to get the value
attr_name = attr.attr_name
value = attr(cls, obj, json_obj)
elif not hasattr(cls, class_attr.__class__.__name__):
# The attribute is a function on the obj like custom_attributes in
# CustomAttributable mixin
attr_name = attr
value = class_attr(obj, json_obj)
else:
# Lookup the method to use to perform the update. Use reflection to
# key off of the type of the attribute and invoke the method of the
# same name.
attr_name = attr
method = getattr(cls, class_attr.__class__.__name__)
value = method(obj, json_obj, attr_name, class_attr)
if (isinstance(value, (set, list)) and
not update_raw and (
not hasattr(class_attr, 'property') or not
hasattr(class_attr.property, 'columns') or not isinstance(
class_attr.property.columns[0].type,
JsonType)
)):
cls._do_update_collection(obj, value, attr_name)
else:
try:
setattr(obj, attr_name, value)
except AttributeError as error:
logger.error('Unable to set attribute %s: %s', attr_name, error)
raise