Ruby-on-rails Rails 4 simple_form collection_select
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Rails 4 simple_form collection_select
提问by markhorrocks
How do I translate the following to simple form?
如何将以下内容翻译成简单的形式？
<%= form_for(@bill) do |f| %>
<%= f.label :location_id %>
<%= f.collection_select(:location_id, @locations, :id, :location_name,
{:selected => @bill.location_id}) %>
I can't use a simple association because @locations is the result of a where query.
我不能使用简单的关联，因为 @locations 是 where 查询的结果。
回答by Viren
Try this
尝试这个
<%= simple_form_for @bill do |f| %>
<%= f.input :location,:collection => @locations,:label_method => :location_name,:value_method => :id,:label => "Location" ,:include_blank => false %>
<%= f.button :submit %>
<%end%>
Hope this help
希望这有帮助
回答by markhorrocks
Here is the final:
这是决赛：
<%= f.input :location_id, collection: @locations, label_method: :location_name, value_method: :id,label: "Location", include_blank: false, selected: @bill.location_id %>
回答by Rails Guy
In simple form, if we have an association between location and bill, than we can do like this:
以简单的形式，如果我们在 location 和 bill 之间建立关联，那么我们可以这样做：
<%= simple_form_for @bill do |f| %>
<%= f.association :location, collection: @locations, priority: @bill.location %>
<%= f.button :submit %>
<% end %>
Hope this will help.
希望这会有所帮助。
回答by Supernini
In your location model, you can also create a :
在您的位置模型中，您还可以创建一个：
def to_label
location_name
end
