Question

我有以下数组：

[{:gig_id=>"1234BN-92846",
  :albums_sold=>
   [{:id=>"all-music", :name=>"All Music"},
    {:id=>"presto", :name=>"Presto"},
    {:id=>"hello", :name=>"Hello"}],
  :clothing_sold=>
   [{:id=>"all-clothing", :name=>"All Clothing"},
    {:id=>"cool-shirt", :name=>"Cool Shirt"},
    {:id=>"manchester-united-hoodie", :name=>"Manchester United Hoodie"},
    {:id=>"manchester-united-tank-top", :name=>"Manchester United Tank-Top"},
    {:id=>"manchester-united-hat", :name=>"Manchester United Hat"},
    {:id=>"manchester-united-shirt", :name=>"Manchester United Shirt"}],
  :promos_sold=>
   [{:id=>"all-promo", :name=>"All Promo"},
    {:id=>"jb-bobblehead", :name=>"JB Bobblehead"},
    {:id=>"poster", :name=>"Poster"}]},
 {:gig_id=>"1234BN-78234",
  :clothing_sold=>
   [{:id=>"all-clothing", :name=>"All Clothing"}, {:id=>"cool-shirt", :name=>"Cool Shirt"}]}]

我将select_tag定义为：

<%= select_tag "All Music, options_from_collection_for_select(name_object[:albums_sold], :id, :name) %>

其中name_object是一个定义为的环境变量：

<% name_object = @band.all_merch_items_names.find { |key| key[:gig_id] == gig } %>

Band＃all_merch_items_names在顶部生成数组。

我一直收到错误：

undefined method `name' for {"id"=>"all-music", "name"=>"All Music"}:Hash

我尝试将密钥更改为符号（＆＃39; id＆＃39;，＆＃39; name＆＃39;）并在options_from_collection_for_select中更改它们以及＆＃39; id＆＃39;和＆＃39; name＆＃39;但我一直得到同样的错误。

我想要达到的目的是创建一个ID为附加到每个元素的下拉列表，以便我可以隐藏/显示具有相同ID的div。。如果有更好的方法来实施select_tag，请建议。

任何帮助都会很棒！感谢。

Answer 1

使用options_for_select修复问题：

<%= select_tag "All Music, options_for_select(name_object[:albums_sold].collect {|item| [item[:name], item[:id]]}) %>

将select_tag与options_from_collection_for_select一起使用时，Hash的未定义方法错误

1 个答案: