Method __init__

lib/sqlalchemy/sql/ddl.py:394–427

Create a DDL statement. :param statement: A string or unicode string to be executed. Statements will be processed with Python's string formatting operator using a fixed set of string substitutions, as well as additional substitutions provided by the

(self, statement, context=None)

    __visit_name__ = "ddl"

    def __init__(self, statement, context=None):
        """Create a DDL statement.

        :param statement:
          A string or unicode string to be executed.  Statements will be
          processed with Python's string formatting operator using
          a fixed set of string substitutions, as well as additional
          substitutions provided by the optional :paramref:`.DDL.context`
          parameter.

          A literal '%' in a statement must be escaped as '%%'.

          SQL bind parameters are not available in DDL statements.

        :param context:
          Optional dictionary, defaults to None.  These values will be
          available for use in string substitutions on the DDL statement.

        .. seealso::

            :class:`.DDLEvents`

            :ref:`event_toplevel`

        """

        if not isinstance(statement, str):
            raise exc.ArgumentError(
                "Expected a string or unicode SQL statement, got '%r'"
                % statement
            )

        self.statement = statement
        self.context = context or {}

    def __repr__(self):
        parts = [repr(self.statement)]