导轨

Question

new.html是一个注册表单，用于创建教师帐户。 它涉及错误处理。 _error_messages.html.erb是处理错误的文件，应该填写所有文本字段。 例如，显示： `

The form contains 3 errors.

    Name can't be blank
    Password confirmation can't be blank
    Password confirmation doesn't match Password

但是，在new.html中没有任何输入的情况下提交表单时，会显示错误

  

缺少模板导师/注册，申请/注册{：locale =＆gt; [：en]，：formats =＆gt; [：html]，：variants =＆gt; []，：handlers =＆gt; [：erb ，：builder，：raw，：ruby，：coffee，：jbuilder]}。搜索范围：*“C：/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0/lib/action_dispatch/templates”*“D：/ Sites / abc / app / views“

new.html.erb

 <% provide(:title, 'Registeration') %>
    <h1>Tutor Registration</h1>
    <div class="row">
      <div class="col-md-6 col-md-offset-3">
        <%= form_for(@tutor) do |f| %>
        <%= render 'shared/error_messages' %>

          <%= f.label :name %>
          <%= f.text_field :name, class: 'form-control' %>

          <%= f.label :email %>
          <%= f.text_field :email, class: 'form-control' %>

          <%= f.label :password %>
          <%= f.password_field :password, class: 'form-control' %>

          <%= f.label :password_confirmation, "Confirm Password" %>
          <%= f.password_field :password_confirmation, class: 'form-control' %>



     <%= f.label :gender %>
                <%= f.select(:gender, ['Male', 'Female'] , class: 'form-control' )%>


          <%= f.label :tutor_education_level %>
                    <%= f.select(:education_level, ['Bachelor', 'Master', 'Doctor'] , class: 'form-control' )%>


          <%= f.label :tutor_institution %>
          <%= f.text_field :institution, class: 'form-control' %>

                <%= f.label :tutorial_experience %>
          <%= f.text_field :experience, class: 'form-control' %>

                <%= f.label :tutor_preferred_district %>
          <%= f.text_field :district, class: 'form-control' %>

          <%= f.label :tutor_preferred_subject %>
          <%= f.text_field :subject, class: 'form-control' %>

                <%= f.label :tutor_required_student_level %>

           <%= f.select(:student_level, ['P1-P3', 'P4-P6', 'S1-S3', 'S4-S6'] , class: 'form-control' )%>


          <%= f.submit "Create tutor's account", class: "btn btn-primary" %>

        <% end %>
      </div>
    </div>

视图/共享/ _error_messages.html.erb

<% if @tutor.errors.any? %>
  <div id="error_explanation">
    <div class="alert alert-danger">
      The form contains <%= pluralize(@tutor.errors.count, "error") %>.
    </div>
    <ul>
    <% @tutor.errors.full_messages.each do |msg| %>
      <li><%= msg %></li>
    <% end %>
    </ul>
  </div>
<% end %>

Tutor -controller

 class TutorsController < ApplicationController
  before_action :logged_in_tutor, only: [:edit, :update]
  before_action :correct_tutor,   only: [:edit, :update]

  def index
    @tutors = Tutor.all
  end

  def show
    @tutor = Tutor.find(params[:id])
  end

  def new
    @tutor = Tutor.new
  end

  def create
    @tutor = Tutor.new(tutor_params)
    if @tutor.save
      log_in @tutor
      flash[:success] = "Congratulations! Your registration is successful!"
      redirect_to @tutor
    else
      render 'register'
    end
  end

  def edit
    @tutor = Tutor.find(params[:id])
  end

  def update
    if @tutor.update_attributes(tutor_params)
      flash[:success] = "Profile updated successfuly!"
      redirect_to @tutor
    else
      render 'edit'
    end
  end

  # Handle sign-up failure, to redirect the tutor to the registeration form again
  def tutor_params
    params.require(:tutor).permit(:name, :email, :password, :password_confirmation, :address,:gender ,:education_level,:institution,:exprience,:district,:subject,:student_level)
  end

  def logged_in_tutor
    unless logged_in?
      store_location
      flash[:danger] = "Please log in."
      redirect_to login_url
    end
  end

  def correct_tutor
    @tutor = Tutor.find(params[:id])
    redirect_to(root_url) unless current_tutor?(@tutor) 
  end
end

Answer 1

当您提交表单时，请求会发送到create操作：

 def create
    @tutor = Tutor.new(tutor_params)
    if @tutor.save
      # if @tutor valid save it and redirect to show action
      redirect_to @tutor
    else
      # else render the register template(or action)
      render 'register'
    end
  end

在create操作中有条件if，在第一种情况下一切都很好，@tutor已保存，Rails调用重定向以显示操作，否则Rails尝试{ {1}}注册不存在的模板（错误声称它）​​。要解决该问题，请使用所需的html代码创建render模板，如果未保存register，则该代码应运行。