[英]Can I render another controller's action from my current controller in Rails 4?
[英]How can I render a partial with a new instance of my object from the create action of that object's controller in Rails?
我的应用程序中有一系列硬编码的问题。 SaleQualifier会选择每个问题,然后根据答案(SaleQualifier has_one答案),应用程序决定接下来向用户呈现哪个后续问题。
该SaleQualifier belongs_to SalesOpportunity
和问题和答案字段都呈现在我的SalesOpportunity显示页面的一部分内。 每当我回答问题时都重新加载整个页面时,这种方法效果很好,但是我想在SaleQualifier视图中使用remote: true
链接和create.js.erb
文件来呈现下一部分而不刷新整个页面。
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
如您所见,我在这里设置一个新的SaleQualifier,为其建立答案,并使用以下方法查找相关问题:
def find_current_question
question = Question.find(@sales_opportunity.next_question)
return question
end
部分如下(我尝试传递本地人,但是这不起作用,因为我认为问题出在SaleQualifier控制器的create动作中):
<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>
提交此代码后,将在后台运行一堆代码以更新SalesOpportunity,以便呈现正确的下一个问题。
我的SaleQualifier控制器的创建动作如下:
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
我认为我的问题出在这里-因为部分用户希望按照我的SalesOpportunity show操作中设置的定义查看@sale_qualifier,但是@sale_qualifier此处是指该模型的新保存实例。 因此,当我尝试将它与remote:true设置一起使用时,出现以下错误:
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} )%>");
有什么办法可以将这些变量传递给此局部变量吗?
我已经设法通过使用传递给format.js动作的代码块(在其中重置这些实例变量)解决了这个问题(但很高兴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)
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)
}
这可行,但是感觉很丑/很臭。
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