Method delete

cassandra/cqlengine/query.py:1508–1519

Deletes one instance

(self)

            self._delete_null_columns()

    def delete(self):
        """ Deletes one instance """
        if self.instance is None:
            raise CQLEngineException("DML Query instance attribute is None")

        ds = DeleteStatement(self.column_family_name, timestamp=self._timestamp, conditionals=self._conditional, if_exists=self._if_exists)
        for name, col in self.model._primary_keys.items():
            val = getattr(self.instance, name)
            if val is None and not col.partition_key:
                continue
            ds.add_where(col, EqualsOperator(), val)
        self._execute(ds)


def _execute_statement(model, statement, consistency_level, timeout, connection=None):