如何禁用select_tag中的選項並將選項設為默認值

Question

我有一個select_tag並將一個選項值設置為默認值，我想根據條件將某些選項設置為禁用

<% disabled_option = ["options for disabled"]%> 
<%= select_tag "product_dropdown", options_for_select(ProductType.get_all_products, @type), {:disabled => disabled_options} %>

上面的代碼拋出了錯誤的參數數量錯誤（3為2），即使我已經使用過

<%= select_tag "product_dropdown", options_for_select(ProductType.get_all_products, @type, {:disabled => disabled_options}) %>

這也不起作用我該怎么辦

Answer 1

這是options_for_select的語法

 options_for_select(["value1", "value2", "value3", "value4"], disabled: ["value1", "value4"])

您正在傳遞三個arguments

options_for_select(ProductType.get_all_products, @type, {:disabled => disabled_options})

所以應該像下面這樣，其中ProductType.get_all_products應該是一個array

編輯

options_for_select(ProductType.get_all_products, selected: @type, disabled: disabled_options)