:disabled字段在fields_for中不工作

Question

我试图在我的表中添加一个禁用的下拉框，我最终将使其成为条件。然而，disabled在运行时似乎没有添加到该行。

如果我检查页面中的元素，手动添加disabled工作，但它不会在运行时添加。

= f.fields_for(:targets, qualification.target_for(@grandfather.user)) do |builder|
  %tr
    %td
      = builder.select :completed, qualification.level_options.map{|o| [o,o]}, :disabled => "disabled"
      = builder.hidden_field :qualification_id, :value => qualification.id
      = builder.hidden_field :id

Answer 1

查看Rails的Form Helper API

select(object, method, choices, options = {}, html_options = {})

将:disabled => "disabled"添加到选项中，而不是html_options。这是要使用的代码(注意options参数的空散列):

builder.select(:completed, qualification.level_options.map{|o| [o,o]}, {}, {:disabled => "disabled"})