Ruby on rails 处理验证错误消息以查看rails 4

Ruby on rails 处理验证错误消息以查看rails 4,ruby-on-rails,validation,ruby-on-rails-4,view,error-handling,Ruby On Rails,Validation,Ruby On Rails 4,View,Error Handling,我已经实现了一个简单的表单,用它来注册带有captcha的用户。 一切正常,但我无法管理要在视图上显示的验证错误,这看起来很简单,但我想我遗漏了一些要点。 这是我的模型 class Email < ActiveRecord::Base apply_simple_captcha :message => "The secret Image and code were different", :add_to_base => true validates_format_

我已经实现了一个简单的表单,用它来注册带有captcha的用户。 一切正常,但我无法管理要在视图上显示的验证错误,这看起来很简单,但我想我遗漏了一些要点。 这是我的模型

class Email < ActiveRecord::Base
    apply_simple_captcha :message => "The secret Image and code were different", :add_to_base => true
    validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/ , :message => "Invalid Email Format"
end
那么这就是我的观点

<%= form_for(@email, url: emails_new_path) do |f| %>
<div class="field">
<%= f.text_field :email, placeholder: "Enter Email" %>
</div>
<%= show_simple_captcha(:email=>"email", :label => "Human   Authentication", :placeholder => "Enter the code") %>
<div class="actions">
<%= f.submit "Sign up" %>
  </div>
<%= @email.errors.full_messages.first if @email.errors.any? %>
<% end %>
控制器

class EmailsController < ApplicationController
   def new
    @email = Email.new(user_params)
    if !user_params.nil?
      if simple_captcha_valid?
        puts "Right captcha"
        @email.save!
        if @email.save
          flash[:success] = "Thanks! We will be in touch soon!"
          redirect_to :action => 'new'
        else
          flash[:success] = "Invalid Emails"
          render :action => 'new'
        end
        else
        puts "Wrong captcha"
        flash[:success] = "Wrong Emails"
      end
    end
  end

  def user_params
     params.require(:email).permit(:email) if params[:email]
  end

end
所以问题是如何管理来自模型和控制器的消息,以便在单击按钮时显示在视图上。 谢谢

您可以使用带验证码的保存进行验证,如:

@email=email.newuser\u参数

如果@email.save\u带有验证码

正确的验证码

否则

使用验证码设置错误

结束