Rails - 添加要选择的自定义项

Question

我有这行代码：

<%= select "family", "num_of_children", (1..10), { :include_blank => true } %>

我想在列表末尾添加一个项目。在这种情况下：我想要一个“更多”选项作为最后一项。 我怎么能这样做？

Answer 1

将范围转换为数组，然后将'more'追加到它：

<%= select "family", "num_of_children", (1..10).to_a << 'more', { :include_blank => true } %>

Answer 2

<%= select "family", "num_of_children", (1..10).to_a + [['more', '11']], { :include_blank => true } %>