ruby-on-rails - 如何在 rails 4 中禁用 collection_select

Question

我不想禁用 collection_select 并且已经测试了以下代码:

<%= f.collection_select(:categoria_id, Categoria.order(:descricao), :id, :descricao,{ class: "form-control", :disabled => "disabled" }) %>
<%= f.collection_select(:categoria_id, Categoria.order(:descricao), :id, :descricao,{ class: "form-control", :disabled => true }) %>
<%= f.collection_select(:categoria_id, Categoria.order(:descricao), :id, :descricao, class: "form-control", :disabled => "disabled") %>
<%= f.collection_select(:categoria_id, Categoria.order(:descricao), :id, :descricao, class: "form-control", :disabled => true) %>

它们都不起作用，有人知道为什么吗？

Answer 1

来自 rails 文档

collection_select(object, method, collection, value_method, text_method, options = {}, html_options = {}) public

请注意，在 html 选项属性之前有一个选项属性。如果您没有定义任何选项，那么您必须在定义任何 html 选项之前包含一个空括号。

<%= f.collection_select(:categoria_id, Categoria.order(:descricao), :id, :descricao,{},{ class: "form-control", :disabled => "disabled" }) %>