(self)
return {
            field: self.previous(field)
            for field in self.fields
            if self.has_changed(field)
        }
Returns dict of fields that changed since save (with old values)
Returns dict of fields that changed since save (with old values)
Returns dict of fields that changed since save ( with old values )
def changed(self):
        """Returns dict of fields that changed since save (with old values)"""
        return {
            field: self.previous(field)
            for field in self.fields
            if self.has_changed(field)
        }
def changed ( self ) : return { field : self . previous ( field ) for field in self . fields if self . has_changed ( field ) }