ruby-on-rails - if & else 语句更改 _form.html.erb 中的提交按钮文本 - Rails4

Question

请告诉我如何正确编写:

文件:views/adverts/_form.html.erb

  <% if action: "new" %>
    <div class="form-actions">
      <%= f.button :submit, 'Post Job' %>
    </div>
  <% else %>
    <div class="form-actions">
      <%= f.button :submit, 'Update Job' %>
    </div>
  <% end %>

Answer 1

您想使用action_name 。另外，使用三元运算符(oneliner)代替 if/else:

f.button :submit, action_name == 'new' ? 'Post Job' : 'Update Job'

或更短:

<%= f.submit action_name == 'new' ? 'Post Job' : 'Update Job'%>