Rails模型驗證錯誤消息未顯示在視圖上

Question

我試圖在視圖中顯示驗證錯誤。當我試圖挽救這個錯誤在視圖中都提出，而是將記錄我的自定義消息additional filter type is required 這裏是我的代碼

型號

class AdditionalFilter < ActiveRecord::Base 

validates :additional_filter_type, presence:{ message: "additional filter type is required" } 
end 

查看

<% if @form.errors.any? %> 
     <%= @form.errors%> <!-- i know should just display an array --> 
    <%end%> 

我正在使用Rails 4.任何幫助將不勝感激，甚至指導如何進行調試。謝謝

這裏是日誌

ActiveRecord::RecordInvalid - Validation failed: Additional filters additional filter type additional filter type is required: 
activerecord (4.2.3) lib/active_record/validations.rb:79:in `raise_record_invalid' 
activerecord (4.2.3) lib/active_record/validations.rb:43:in `save!' 

Answer 1

您使用save!，這引發了異常，這將完全跳過你的看法錯誤。您應該使用save，並允許無效記錄「落入」您的視圖。