How to use _check_for_updated_attributes method in autotest

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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