render.py 文件源码

def _get_index_rendered_expressions(idx, autogen_context):
    if compat.sqla_08:
        return [repr(_ident(getattr(exp, "name", None)))
                if isinstance(exp, sa_schema.Column)
                else _render_potential_expr(exp, autogen_context)
                for exp in idx.expressions]
    else:
        return [
            repr(_ident(getattr(col, "name", None))) for col in idx.columns]