Best Python code snippet using autotest_python
model_logic.py
Source: model_logic.py
...609 """610 assert not isinstance(attributes, basestring)611 self._recorded_attributes = dict((attribute, getattr(self, attribute))612 for attribute in attributes)613 def _check_for_updated_attributes(self):614 """615 See on_attribute_changed.616 """617 for attribute, original_value in self._recorded_attributes.iteritems():618 new_value = getattr(self, attribute)619 if original_value != new_value:620 self.on_attribute_changed(attribute, original_value)621 self._record_attributes(self._recorded_attributes.keys())622 def on_attribute_changed(self, attribute, old_value):623 """624 Called whenever an attribute is updated. To be overridden.625 To use this method, you must:626 * call _record_attributes() from __init__() (after making the super627 call) with a list of attributes for which you want to be notified upon628 change.629 * call _check_for_updated_attributes() from save().630 """631 pass632class ModelWithInvalid(ModelExtensions):633 """634 Overrides model methods save() and delete() to support invalidation in635 place of actual deletion. Subclasses must have a boolean "invalid"636 field.637 """638 def save(self):639 first_time = (self.id is None)640 if first_time:641 # see if this object was previously added and invalidated642 my_name = getattr(self, self.name_field)643 filters = {self.name_field : my_name, 'invalid' : True}...
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