如何使collection_select在軌道4

Question

我wan't禁用collection_select禁用，已經測試了以下代碼：

<%= 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) %> 

他們沒有工作，任何人都知道爲什麼嗎？

Answer 1

從Rails文檔

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

注意有是HTML屬性的選項前的選項屬性。如果你沒有定義任何選項，那麼你必須在定義任何html選項之前包含空括號。

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