如何将form_select添加到rails应用程序中的固定下拉列表中？

Question

我使用下拉列表作为形式的输入，下拉列表依赖于用户。现在，我想添加"N/A“下拉到每个用户。在我现有的代码中，我该如何做？

    <%= form.select :responsibility, options_for_select(@responsibilities.collect{ |responsibility| [responsibility.responsibility_matrix] }), {  prompt: { responsibility: ' ' } } %>

Answer 1

这就是你要找的吗？

 <%= form.select :responsibility, options_for_select(@responsibilities.collect{ |responsibility| [responsibility.responsibility_matrix] }.unshift(['N/A', 'N/A'])), {  prompt: { responsibility: ' ' } } %>