如何从Rails中该对象的控制器的创建操作中使用我的对象的新实例渲染部分?

时间:2016-01-14 12:39:14

标签: ruby-on-rails partials

我的应用中有一系列硬编码问题。 SaleQualifier会收到每个问题,并根据答案(SaleQualifier has_one Answer),应用程序决定接下来要向用户提出哪个后续问题。

SaleQualifier belongs_to SalesOpportunity - 以及问题和答案字段都在SalesOpportunity展示页面的部分内部呈现。当我每次回答问题时重新加载整个页面时,这样做很好,但是我想在SaleQualifier视图中使用remote: true链接和create.js.erb文件来渲染下一个没有整页刷新。

销售机会控制器:

  # GET /sales_opportunities/1
# GET /sales_opportunities/1.json
def show
 @sales_opportunity = SalesOpportunity.includes(:company, :user, :timeline_events, :sale_contacts, :swots, :sale_competitors).find(params[:id])
 @sale_qualifier = SaleQualifier.new(sales_opportunity_id: params[@sales_opportunity.id])
  @answer = @sale_qualifier.build_answer
 @question = find_current_question
end

正如您所看到的,我在此处设置了一个新的SaleQualifier,为其构建答案,并使用以下方法找到相关问题:

 def find_current_question
  question = Question.find(@sales_opportunity.next_question)
  return question
end

部分内容如下(我已尝试传递本地人,但这不起作用,因为我认为问题出在SaleQualifier控制器的创建操作中):

<div class="panel panel-default">
 <%= form_for(@sale_qualifier, :html => {role: :form, 'data-model' => 'sale_qualifier'}, remote: true) do |f| %>
  <% if @sale_qualifier.errors.any? %>
   <div id="error_explanation">
    <h2><%= pluralize(@sale_qualifier.errors.count, "error") %> prohibited this answer from being saved:</h2>
    <ul>
    <% @sale_qualifier.errors.full_messages.each do |message| %>
      <li><%= message %></li>
    <% end %>
    </ul>
  </div>
<% end %>
<div class="panel-body">
  <div class="col-sm-6">
    <h2><%= @question.question_text %></h2>
  </div>
  <div class="col-sm-6">
    <div class="form-group">
      <%= f.hidden_field :sales_opportunity_id, :value => @sales_opportunity.id %>
    </div>
    <div class="form-group">
      <%= f.hidden_field :question_id, :value => @question.id %>
    </div>
    <%= f.fields_for :answer do |answer| %>
      <% if @question.answer_type == 'Text Field' %>
        <%= answer.text_area :answer_text, :placeholder => "Enter your answer" %>
      <% end %>
      <% if @question.answer_type == 'Datetime' %>
      <div class='input-group date' id='datetimepicker' data-date-format="YY.MM.DD">
        <%= answer.text_field :answer_text, class: "form-control", data: { date_format: 'YYYY/MM/DD' }, :placeholder => "YYYY/MM/DD" %>
        <span class="input-group-addon">
          <span class="glyphicon glyphicon-calendar"></span>
         </span>
      </div>
        <% end %>
        <% if @question.answer_type == 'Boolean' %>
          <%= answer.select :answer_text, [['Yes', true], ['No', false]] %>
        <% end %>
        <% if @question.answer_type == 'Update' %>
          <%= answer.hidden_field :answer_text, :value => "Updated" %>
        <% end %>
    <% end %>
      <% if @question.answer_type == 'Update' %>
        <div class="actions">
          <%= f.submit "Done", class: "btn btn-large btn-success"%>
        </div>
      <% else %>
        <div class="actions">
          <%= f.submit "Submit", class: "btn btn-large btn-success"%>
        </div>
      <% end %>
    <% end %>
  </div>
 </div>
</div>

提交后,在幕后运行一堆代码来更新SalesOpportunity,以便呈现正确的下一个问题。

我的SaleQualifier控制器的创建操作如下:

  def create
   @sale_qualifier = SaleQualifier.new(sale_qualifier_params)
   @sales_opportunity = @sale_qualifier.sales_opportunity

   respond_to do |format|
    if @sale_qualifier.save
     format.html { redirect_to @sales_opportunity, notice: 'Sale qualifier was successfully created.' }
     format.json { render :show, status: :created, location: @sale_qualifier }
     format.js
    else
     format.html { render :new }
     format.json { render json: @sale_qualifier.errors, status: :unprocessable_entity }
    end
  end
end

我认为我的问题源于此 - 因为部分期望按照我的SalesOpportunity show动作中设置的定义看@sale_qualifier,而是@sale_qualifier这里指的是新保存的该模型的实例。因此,当我尝试使用remote:true set时,我收到以下错误:

ActionView::Template::Error (undefined method `question_text' for nil:NilClass):
12:     <% end %>
13:     <div class="panel-body">
14:       <div class="col-sm-6">
15:         <h2><%= @question.question_text %></h2>
16:       </div>
17:       <div class="col-sm-6">
18:         <div class="form-group">
app/views/sale_qualifiers/_qualify.html.erb:15:in `block in _app_views_sale_qualifiers__qualify_html_erb__3308770490925429645_70100598754380'
app/views/sale_qualifiers/_qualify.html.erb:2:in `_app_views_sale_qualifiers__qualify_html_erb__3308770490925429645_70100598754380'
app/views/sale_qualifiers/create.js.erb:2:in `_app_views_sale_qualifiers_create_js_erb__2206693572750561934_70100598786040'
app/controllers/sale_qualifiers_controller.rb:32:in `create'

create.js.erb代码:

//update the sale qualifier div with the next question
$('#sale_qualifier_div').html("<%= escape_javascript(render :partial => 'sale_qualifiers/qualify', :locals => { :sale_qualifier => @sale_qualifier, :answer => @answer, :question => @question} )%>");

有没有办法可以将这些变量传递给这个部分?

1 个答案:

答案 0 :(得分:0)

我设法通过使用传递给format.js操作的块来解决这个问题(但是会很感激能告诉我为什么这是一个坏主意/给我一个更好的选择的人)我重置这些实例变量:

    format.js {
      @sales_opportunity = SalesOpportunity.find_by(id: session[:sales_opportunity_id])
      @sale_qualifier = SaleQualifier.new(sales_opportunity_id: params[@sales_opportunity.id])
      @answer = @sale_qualifier.build_answer
      @question = Question.find(@sales_opportunity.next_question)
    }

这样可行,但感觉很难/很臭。