每当我使用.find(params [：id]以外的任何东西时,ActiveRecord :: Relation：Class的错误未定义方法`model_name’@H_502_3@

我的代码如下@H_502_3@

控制器：@H_502_3@

def edit
   @office = Office.where("id = ? AND company_id = ?",params[:id],@company.id )
end

视图：@H_502_3@

<%= simple_form_for @office,:url => settings_office_path,:html => { :class => "office_form" } do |f| %>
  <h1>Edit <%= @office.office_name %> Details</h1>
  <%= render :partial => 'form',:locals => { :f => f } %>
<% end %>

我输出了@office的类,它是ActiveRecord :: Relation.如果我只是用@H_502_3@

@office = Office.find(params[:id])

输出是Office.@H_502_3@

我认为这是问题,但不知道如何解决它.有任何想法吗？@H_502_3@