rails选择表格标签 - 如何添加默认的“全部”选项？

Question

我有以下内容创建一个选择框：

<%=select_tag "people", options_from_collection_for_select(@people, "id", "name")%>

这会为每个人创建一个项目，问题是我想要一个“所有人”值0，默认情况下在加载时添加和选择选项？

rails 3中的select_tag是否支持此功能？

由于

Answer 1

只需在:include_blank => 'All People'中添加select_tag选项：

<%= select_tag "people", options_from_collection_for_select(@people, "id", "name"), :include_blank => 'All People' %>