Function _append_param_update

lib/sqlalchemy/sql/crud.py:1220–1263

(
    compiler, compile_state, stmt, c, implicit_return_defaults, values, kw
)

def _append_param_update(
    compiler, compile_state, stmt, c, implicit_return_defaults, values, kw
):
    include_table = compile_state.include_table_with_column_exprs
    if c.onupdate is not None and not c.onupdate.is_sequence:
        if c.onupdate.is_clause_element:
            values.append(
                (
                    c,
                    compiler.preparer.format_column(
                        c,
                        use_table=include_table,
                    ),
                    compiler.process(c.onupdate.arg.self_group(), **kw),
                    (),
                )
            )
            if implicit_return_defaults and c in implicit_return_defaults:
                compiler.implicit_returning.append(c)
            else:
                compiler.postfetch.append(c)
        else:
            values.append(
                (
                    c,
                    compiler.preparer.format_column(
                        c,
                        use_table=include_table,
                    ),
                    _create_update_prefetch_bind_param(compiler, c, **kw),
                    (c.key,),
                )
            )
    elif c.server_onupdate is not None:
        if implicit_return_defaults and c in implicit_return_defaults:
            compiler.implicit_returning.append(c)
        else:
            compiler.postfetch.append(c)
    elif (
        implicit_return_defaults
        and (stmt._return_defaults_columns or not stmt._return_defaults)
        and c in implicit_return_defaults
    ):
        compiler.implicit_returning.append(c)


@overload